A biodegradable resin composition including heterogeneous biodegradable resins, which has improved compatibility between the heterogeneous biodegradable resins and thus the resin composition is excellent processability by preventing an increase in viscosity while having excellent mechanical properties, and to a biodegradable molded article molded from the resin composition.
C08L 33/06 - Homopolymers or copolymers of esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
A branched polylactic acid polymer that has improved rheological properties, and a method for preparing same, and provides a branched polylactic acid polymer including a derived unit from a polylactic acid polymer, having an average number of long-chain branches per molecule of 3-10, and having a mass flow rate of 1-20 g/10 min measured at 190° C. and a load of 2.16 kg in accordance with ASTM D1238 conditions.
Provided are a curable composition, a cured body thereof or a thermal interface material (TIM), and a use thereof, wherein the curable composition or thermal interface material, and the like can exhibit low adhesion force to a given adherend while exhibiting high thermal conductivity, and the low adhesion force can be achieved without using an adhesion force adjusting component such as a plasticizer or in a state where the use ratio thereof is minimized. The curable composition can also exhibit a precisely controlled curing rate and simultaneously have excellent curability.
C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
C08G 18/24 - Catalysts containing metal compounds of tin
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
C09K 5/14 - Solid materials, e.g. powdery or granular
4.
COMPOUND AND ORGANIC LIGHT-EMITTING ELEMENT COMPRISING SAME
SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION (Republic of Korea)
Inventor
Kim, Moung Gon
Kwon, Min Sang
Kim, Kyunghee
Lee, Woochul
Abstract
A compound of Chemical Formula 1:
A compound of Chemical Formula 1:
A compound of Chemical Formula 1:
wherein: X is NR, O, or S; Y is O or S; Ar1, Ar2 and Ar3 are each independently a substituted or unsubstituted monocyclic or polycyclic hydrocarbon ring, or a substituted or unsubstituted monocyclic or polycyclic hetero ring, provided that at least one of Ar1, Ar2 and Ar3 includes a hetero ring or a substituted or unsubstituted aliphatic hydrocarbon ring, and when X is NR, at least one of R, Ar1, Ar2 and Ar3 includes a ring in which substituted or unsubstituted aliphatic hydrocarbon rings are fused; when X is NR, at least one of Ar1 and Ar3 is optionally bonded to R to form a ring, and Ar2 and Ar3 are optionally bonded to each other to form a ring; and the other substituents are as defined in the specification; and an organic light-emitting element including the same.
H10K 50/12 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising dopants
H10K 85/60 - Organic compounds having low molecular weight
5.
PREPARATION METHOD OF MONOMER COMPOSITION FOR SYNTHESISING RECYCLED PLASTIC, PREPARATION DEVICE OF MONOMER COMPOSITION FOR SYNTHESISING RECYCLED PLASTIC, AND MONOMER COMPOSITION FOR SYNTHESISING RECYCLED PLASTIC, RECYCLED PLASTIC, MOLDED PRODUCT USING THE SAME
The present disclosure relates to a preparation method of a monomer composition for synthesizing recycled plastic, the method comprising the steps of: subjecting a polycarbonate-based resin to a depolymerization reaction in the presence of an alcohol; monitoring a Raman spectrum of an aromatic diol compound obtained from the depolymerization reaction or alcohol in a reactor through which depolymerization reaction proceeds; and recovering the aromatic diol compound, and to a preparation device of a monomer composition for synthesizing recycled plastic, and a monomer composition for synthesizing recycled plastic, a recycled plastic and a molded product using the same.
C07C 29/128 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by alcoholysis
6.
Positive Electrode Active Material and Method for Producing the Same
The present invention relates to a positive active material including: a lithium transition metal oxide which is in the form of a single particle and divided into a surface part and a core; and a coating part which is formed on the surface part and contains cobalt, wherein the surface part includes an oxidation number gradient layer in which the oxidation number of nickel (Ni) increases toward the outermost surface, and a method for producing the same.
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
C01G 53/42 - Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
7.
METHOD FOR PRODUCING HYDROPHOBIC SILICA AEROGEL BLANKET, AND SILICA AEROGEL BLANKET
The present invention relates to a method for producing a silica aerogel blanket having excellent surface modification efficiency and high hydrophobicity while not containing residual chlorine, and to a silica aerogel blanket produced thereby and not containing residual chlorine.
An electrically heated reactor is disclosed. The electrically heated reactor comprises: a reaction tube including an inlet formed at one end and an outlet formed at the other end, and having formed therein a passage through which a reactant passes; a power source configured to supply power to the reaction tube to heat the reactant passing through the passage; and a pair of conductive sockets connected to the power source through electric wires to allow a current to flow through the reaction tube, wherein the reaction tube includes a plurality of tube portions having resistivity and length, the resistivity of one tube is different from the resistivity of another neighboring tube, and the length of one tube may be the same as or different from the length of another tube.
B01J 19/24 - Stationary reactors without moving elements inside
B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus
B01J 8/02 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with stationary particles, e.g. in fixed beds
9.
RESIN COMPOSITION AND BIODEGRADABLE RESIN PRODUCT COMPRISING SAME
The present invention relates to a resin composition and a biodegradable resin product comprising same. The resin composition of the present invention can implement adhesion, mechanical properties and air permeability suitable for a packaging wrap use while maintaining the biodegradability of polybutylene adipate terephthalate.
The present invention relates to a transparent antenna film satisfying relational expressions 1 and 2, and comprising: a substrate layer; an electrically conductive mesh pattern region disposed on the substrate layer; and a dummy pattern region which is disposed on the substrate layer and electrically disconnected from the electrically conductive mesh pattern region, and which is formed by the segmentation of a portion of electrically conductive lines forming a unit pattern. The present invention provides a transparent antenna film having improved pattern invisibility. Relational expression 1: 80%≤{(total pattern length of dummy pattern region)/(total length of the electrically conductive mesh pattern region)}×100≤120%. Relational expression 2: |aperture ratio of electrically conductive mesh pattern region-aperture ratio of dummy pattern region|≤2%. The dummy pattern region and the electrically conductive mesh pattern region satisfying relational expression 1 are arbitrarily selected within a size of 5 mm in width and 5 mm in length.
The present invention relates to: a method for preparing a fermented liquid by fermenting a strain having a 3-hydroxypropionic acid-producing ability in the presence of a polyol, and for preparing a branched 3-hydroxypropionic acid prepolymer by polymerizing same in the presence of the polyol; and a method for preparing a bioacrylic acid by pyrolyzing the branched 3-hydroxypropionic acid prepolymer.
C07C 51/09 - Preparation of carboxylic acids or their salts, halides, or anhydrides from carboxylic acid esters or lactones
C07C 51/377 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reactions not involving formation of carboxyl groups by splitting-off hydrogen or functional groupsPreparation of carboxylic acids or their salts, halides, or anhydrides by reactions not involving formation of carboxyl groups by hydrogenolysis of functional groups
Crosslinking Agent Composition for Olefin-Based Copolymer, Encapsulant Composition for Optical Device Comprising the Same and Encapsulant Film for Optical Device
Provided are a crosslinking agent composition for an olefin-based copolymer, an encapsulant composition for an optical device, an encapsulant film for an optical device, and an optoelectronic device, wherein a compound of Formula 1 is applied in the crosslinking agent composition or the encapsulant composition including an olefin-based copolymer, as a crosslinking auxiliary agent, thereby forming an encapsulant composition for an optical device and an encapsulant film for an optical device, showing excellent productivity and high volume resistance and light transmittance:
Provided are a crosslinking agent composition for an olefin-based copolymer, an encapsulant composition for an optical device, an encapsulant film for an optical device, and an optoelectronic device, wherein a compound of Formula 1 is applied in the crosslinking agent composition or the encapsulant composition including an olefin-based copolymer, as a crosslinking auxiliary agent, thereby forming an encapsulant composition for an optical device and an encapsulant film for an optical device, showing excellent productivity and high volume resistance and light transmittance:
Provided are a crosslinking agent composition for an olefin-based copolymer, an encapsulant composition for an optical device, an encapsulant film for an optical device, and an optoelectronic device, wherein a compound of Formula 1 is applied in the crosslinking agent composition or the encapsulant composition including an olefin-based copolymer, as a crosslinking auxiliary agent, thereby forming an encapsulant composition for an optical device and an encapsulant film for an optical device, showing excellent productivity and high volume resistance and light transmittance:
wherein R1 to R4 and m are described herein.
The present disclosure provides a method for producing a cured product using an inert redox initiator system, and a cured product resulting therefrom. Specifically, the method for producing a cured product according to the present disclosure comprises a step of contacting a layer of a curable composition including a curable syrup and a first initiator component with a layer of a second initiator component of a film including the layer of the second initiator component on a surface thereof to perform curing the curable composition, and is characterized in that the initiator component is an inert redox initiator system comprising an oxidizing agent and a reducing agent, the reducing agent comprises a metal compound, and the metal compound is included in an effective amount only in any one of the layer of the second initiator component on the film or the layer of the curable composition.
A method for preparing a positive electrode active material precursor having a narrow particle size distribution in a reproducible manner. The method utilizes a reaction device in which a reactor and a continuous grinder are connected. The method includes the steps of: (S1) introducing a reaction solution including a transition metal-containing solution, an ammonium ion-containing solution, and a basic aqueous solution into the reactor to form and discharge a positive electrode active material precursor seed; and (S2) introducing the positive electrode active material precursor seed discharged from the reactor into the continuous grinder, and discharging and re-introducing the positive electrode active material precursor seed into the reactor. Steps (S1) and (S2) are carried out simultaneously.
A polyacrylic acid (salt)-based super absorbent polymer has a slip strain (%) of 12.5% or less after the polyacrylic acid (salt)-based super absorbent polymer is subjected to 30% swelling. The slip strain means a value at a time when a storage modulus rapidly decreases with an increase in strain when a change in the storage modulus is observed by increasing the slip strain of each sample from 0.01% to 100% using a rheometer under a frequency of 1 Hz and a temperature of 25° C. The superabsorbent polymer has an absolute value of a rate of change in slip strain at 30% and 70% swelling derived by Equation 1 of 0.04 or less, wherein Equation 1 is Rate of change in slip strain at 30% and 70% swelling=[{(slip strain at 70% swelling)−(slip strain at 30% swelling)}/40].
A composite solid electrolyte includes sulfide-based solid electrolyte particles, and a polymer coating layer formed on the sulfide-based solid electrolyte particles, wherein the polymer coating layer includes a polymer having a Mooney viscosity (ML1+4, 100° C.) of from 30 to 110. An all-solid-state battery including the composite solid electrolyte is also provided.
The present specification relates to: a compound represented by chemical formula 1 and capable of improving the efficiency and lifespan characteristics of an organic light-emitting element; and an organic light-emitting element comprising an anode, a cathode, and one or more organic material layers provided between the anode and the cathode, wherein at least one of the one or more organic material layers comprises the compound represented by chemical formula 1.
C07D 307/77 - Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
C07D 407/10 - Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a carbon chain containing aromatic rings
C07D 333/50 - Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom condensed with carbocyclic rings or ring systems
C07D 409/04 - Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings directly linked by a ring-member-to-ring- member bond
C07D 409/10 - Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing aromatic rings
C07D 409/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing three or more hetero rings
C07D 407/04 - Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group containing two hetero rings directly linked by a ring-member-to-ring- member bond
H10K 85/60 - Organic compounds having low molecular weight
The present invention relates to a polyolefin composition. The polyolefin composition according to the present invention includes a modified polyolefin containing a vinyl silane group, and thus can improve the degree of crosslinking. An encapsulant film manufactured using the polyolefin composition according to the present invention can exhibit an improved degree of crosslinking while maintaining optical properties and insulating properties.
C08F 255/02 - Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group on to polymers of olefins having two or three carbon atoms
C08F 230/08 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing a metal containing silicon
C08F 210/16 - Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
C08L 51/06 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
A polyacrylic acid (salt)-based super absorbent polymer, includes carbon, oxygen, and sodium on the surface thereof, wherein XO—C═O is 2.5 at % or greater and, XO—C═O represents a content (at %) of carbon included in a O—C═O bond structure among all elements present on the surface of the super absorbent polymer according to XPS analysis.
The present invention relates to a thermoplastic resin composition including: a diene-based graft polymer; a vinyl-based non-grafted polymer including an alkyl-substituted aromatic vinyl-based monomer unit and a vinyl cyanide-based monomer unit; a first maleimide-based non-grafted polymer including a maleimide-based monomer unit, an alkyl-unsubstituted aromatic vinyl-based monomer unit, and a vinyl cyanide-based monomer unit; and a second maleimide-based non-grafted polymer including a maleimide-based monomer unit and an alkyl-unsubstituted aromatic vinyl-based monomer unit, wherein the first maleimide-based non-grafted polymer has a lower glass transition temperature than the second maleimide-based non-grafted polymer.
The present invention relates to a method for manufacturing a cathode active material, the method comprising: a step of mixing a lithium compound, a transition metal oxide, and a metal oxide to prepare a mixture; and a calcination step of calcining the mixture to prepare a lithium transition metal oxide, wherein the transition metal oxide contains 40-70 mol% of Ni with respect to the total transition metals, the calcination step is performed through a two-stage temperature maintenance section, a temperature of a first temperature maintenance section is 700-800 °C, and a temperature of a second temperature maintenance section is 800-900 °C.
C01G 53/52 - Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese of the type (Mn2O4)2-, e.g. Li2(NixMn2-x)O4 or Li2(MyNixMn2-x-y)O4
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
The present invention relates to a carbon nanotube dispersion and a preparation method therefor, the carbon nanotube dispersion comprising: carbon nanotubes; a first dispersant including a hydrated nitrile butadiene rubber; a second dispersant including an alkanol ammonium salt compound of a polymer containing an acidic functional group; and a solvent, wherein the weight average molecular weight of the hydrated nitrile butadiene rubber is 10,000-20,000 g/mol.
A pretreatment system for measuring an active ingredient is disclosed. The pretreatment system may comprise: a cartridge station having at least one cartridge mounted thereon; a pipetting device configured to inject a sample or a standard sample into the interior of the at least one cartridge; a vial shaker configured to shake the first and second vials, wherein at least one first vial containing a sample to be analyzed and a second vial containing a standard sample having known properties including a component and concentration are mounted on the vial shaker; a drying chamber having at least one reservoir mounted thereon and configured to dry a solution in the at least one reservoir; and a reservoir processing unit configured to be selectively coupled to the at least one reservoir and to spray a solvent into the at least one reservoir. A pretreatment method performed using the pretreatment system is further disclosed.
The present invention provides a transition metal compound, a catalyst composition, and a method for preparing polypropylene by using same, the transition metal compound having a narrow molecular weight distribution and a low weight average molecular weight and a high melt index such that polypropylene, which is useful for non-woven fabrics having a ultra-low basis weight characteristic and a high strength characteristic, can be prepared.
C08F 4/6592 - Component covered by group containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
C08F 4/659 - Component covered by group containing a transition metal-carbon bond
The present invention relates to a positive electrode active material, and a positive electrode and a lithium secondary battery that comprise the positive electrode active material, wherein the positive electrode active material comprises a lithium composite transition metal oxide having a larger structural orientation value than shape orientation value, and can improve the capacity characteristics and lifespan characteristics of the secondary battery.
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
The present invention relates to a positive electrode active material including lithium composite transition metal oxide particles in the form of single particles or secondary particles including two or more grains, the positive electrode active material comprising: a first coating portion which is present on the surface of the particles and in the grain boundaries, and contains cobalt (Co); and a second coating portion which is present only on the surface of the particles and in the grain boundaries directly connected to the surface, and contains at least one selected from the group consisting of aluminum (Al), zirconium (Zr), tungsten (W), niobium (Nb), boron (B), titanium (Ti), yttrium (Y), and magnesium (Mg).
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
C01G 53/50 - Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese of the type (MnO2)n-, e.g. Li(NixMn1-x)O2 or Li(MyNixMn1-x-y)O2
The present invention relates to: a microcarrier for cell culture, comprising polystyrene-based particles; a method for preparing the microcarrier for cell culture; and a cell culture composition using same.
The present invention relates to: a microcarrier for a cell culture, the microcarrier containing polystyrene-based particles; a method for preparing the microcarrier for a cell culture; and a cell culture composition using same.
The present invention relates to a hologram recording medium, a preparation method thereof, and an optical element including the same. As the hologram recording medium satisfies a specific element ratio, it not only is excellent in optical recording characteristics, but also exhibits excellent durability against heat and moisture, and can exhibit appropriate adhesive force to transparent adhesives and high transparency.
G03H 1/02 - Holographic processes or apparatus using light, infrared, or ultraviolet waves for obtaining holograms or for obtaining an image from themDetails peculiar thereto Details
C08L 33/06 - Homopolymers or copolymers of esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
C09B 57/00 - Other synthetic dyes of known constitution
A method for preparing polybutylene adipate terephthalate, the method including: a first step of preparing a polybutylene adipate terephthalate prepolymer by polymerizing butanediol, adipic acid, and terephthalic acid in the presence of a titanium (Ti)-based polymerization catalyst; and a second step of condensing the polybutylene adipate terephthalate prepolymer in the presence of a titanium (Ti)-based condensation catalyst and a phosphorus (P)-based thermal stabilizer, wherein the molar ratio of phosphorus (P) and titanium (Ti) used in the first and second steps satisfies the conditions of Equation 1:
A method for preparing polybutylene adipate terephthalate, the method including: a first step of preparing a polybutylene adipate terephthalate prepolymer by polymerizing butanediol, adipic acid, and terephthalic acid in the presence of a titanium (Ti)-based polymerization catalyst; and a second step of condensing the polybutylene adipate terephthalate prepolymer in the presence of a titanium (Ti)-based condensation catalyst and a phosphorus (P)-based thermal stabilizer, wherein the molar ratio of phosphorus (P) and titanium (Ti) used in the first and second steps satisfies the conditions of Equation 1:
0.65
<
¯
P
/
Ti
<
¯
1
[
Equation
1
]
A method for preparing polybutylene adipate terephthalate, the method including: a first step of preparing a polybutylene adipate terephthalate prepolymer by polymerizing butanediol, adipic acid, and terephthalic acid in the presence of a titanium (Ti)-based polymerization catalyst; and a second step of condensing the polybutylene adipate terephthalate prepolymer in the presence of a titanium (Ti)-based condensation catalyst and a phosphorus (P)-based thermal stabilizer, wherein the molar ratio of phosphorus (P) and titanium (Ti) used in the first and second steps satisfies the conditions of Equation 1:
0.65
<
¯
P
/
Ti
<
¯
1
[
Equation
1
]
Also, a polybutylene adipate terephthalate having a weight average molecular weight of 70,000 to 200,000 g/mol and satisfying the following Formula 1:
A method for preparing polybutylene adipate terephthalate, the method including: a first step of preparing a polybutylene adipate terephthalate prepolymer by polymerizing butanediol, adipic acid, and terephthalic acid in the presence of a titanium (Ti)-based polymerization catalyst; and a second step of condensing the polybutylene adipate terephthalate prepolymer in the presence of a titanium (Ti)-based condensation catalyst and a phosphorus (P)-based thermal stabilizer, wherein the molar ratio of phosphorus (P) and titanium (Ti) used in the first and second steps satisfies the conditions of Equation 1:
0.65
<
¯
P
/
Ti
<
¯
1
[
Equation
1
]
Also, a polybutylene adipate terephthalate having a weight average molecular weight of 70,000 to 200,000 g/mol and satisfying the following Formula 1:
Acid
value
+
b
*
≤
3
0
[
Formula
1
]
A method for preparing polybutylene adipate terephthalate, the method including: a first step of preparing a polybutylene adipate terephthalate prepolymer by polymerizing butanediol, adipic acid, and terephthalic acid in the presence of a titanium (Ti)-based polymerization catalyst; and a second step of condensing the polybutylene adipate terephthalate prepolymer in the presence of a titanium (Ti)-based condensation catalyst and a phosphorus (P)-based thermal stabilizer, wherein the molar ratio of phosphorus (P) and titanium (Ti) used in the first and second steps satisfies the conditions of Equation 1:
0.65
<
¯
P
/
Ti
<
¯
1
[
Equation
1
]
Also, a polybutylene adipate terephthalate having a weight average molecular weight of 70,000 to 200,000 g/mol and satisfying the following Formula 1:
Acid
value
+
b
*
≤
3
0
[
Formula
1
]
where the acid value is an acid value (mmol/kg) of the polybutylene adipate terephthalate polymer, and b* is the b* value in color of the polybutylene adipate terephthalate polymer.
SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION (Republic of Korea)
Inventor
Bang, Jungup
Kim, Do Heui
Choi, Jae Soon
Kim, Sangjin
Suh, Junho
Jung, Hyeongdong
Abstract
A catalyst for hydrocracking, according to one embodiment of the present application, specifically, a Ru-based catalyst for hydrocracking, comprises a mixed catalyst including a supported catalyst and a zeolite catalyst, wherein a mass ratio of the supported catalyst to the zeolite catalyst in the mixed catalyst is within a specific range, and exhibits high naphtha yield, low methane yield, and excellent reaction activity under mild conditions when used in a hydrocracking reaction.
The present invention relates to an electrolytic cell. According to one aspect of the present invention, the electrolytic cell for electrolyzing a reaction solution comprises: a reaction chamber having a reaction space through which a reaction solution flows; an electrode extending in the vertical direction from a side portion of the reaction space such that an electric potential for electrolyzing the reaction solution can be applied; and a baffle plate disposed in the reaction space so as to partition the reaction space, wherein a flow hole through which the reaction solution can pass can be formed to pass through the baffle plate.
Disclosed is an organic light emitting device including: an anode; a cathode; and a light emitting layer provided between the anode and the cathode, in which the light emitting layer includes a compound represented by Chemical Formula 1 and a compound represented by Chemical Formula 2.
A super absorbent polymer may have a capillary constant of 0.4 mm5 or more as derived using n-hexane. The super absorbent polymer may be a polyacrylic acid (salt)-based super absorbent polymer. The super absorbent polymer may have a fast absorption rate and an improved absorption capacity, resulting in improved performance.
B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
The present disclosure relates to a hologram recording medium, a preparation method thereof, and an optical element including the same. The hologram recording medium can have excellent optical recording characteristics and low haze by controlling an element ratio of fluorine on the surface of the photopolymer layer to a specific range, and can provide an optical element with excellent visibility.
C08F 283/12 - Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass on to polysiloxanes
C08F 2/50 - Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
G11B 7/245 - Record carriers characterised by the selection of the material of recording layers comprising organic materials only containing a polymeric component
A polyacrylic acid (salt)-based super absorbent polymer, includes carbon, oxygen, and sodium on the surface thereof, and satisfies Equation 1: XC═O+XO—C═O≥6 (at %) wherein, XC═O represents the content (at %) of carbon included in a C═O bond structure among all elements present on the surface of the super absorbent polymer according to XPS analysis, and XO—C═O represents the content (at %) of carbon included in a O—C═O bond structure among all elements present on the surface of the super absorbent polymer according to XPS analysis.
D06M 11/79 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereofSuch treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
B32B 17/02 - Layered products essentially comprising sheet glass, or fibres of glass, slag or the like in the form of fibres or filaments
The present specification discloses a crosslinked product of a polymer composition and a use thereof. The present specification discloses a crosslinked product of a polymer composition, the crosslinked product being made of a biodegradable material and exhibiting balanced absorption properties. The present specification also discloses a method for preparing the crosslinked product of a polymer composition.
The present invention relates to a method for preparing a liquid rubber, and relates to a method for preparing a liquid rubber, including performing polymerization reaction of a conjugated diene-based monomer in the presence of an organic solvent and a catalyst composition (S10), wherein the catalyst composition includes a catalyst including a compound represented by the following Formula 1, and a liquid rubber prepared therefrom:
The present invention relates to a method for preparing a liquid rubber, and relates to a method for preparing a liquid rubber, including performing polymerization reaction of a conjugated diene-based monomer in the presence of an organic solvent and a catalyst composition (S10), wherein the catalyst composition includes a catalyst including a compound represented by the following Formula 1, and a liquid rubber prepared therefrom:
The present invention relates to a method for preparing a liquid rubber, and relates to a method for preparing a liquid rubber, including performing polymerization reaction of a conjugated diene-based monomer in the presence of an organic solvent and a catalyst composition (S10), wherein the catalyst composition includes a catalyst including a compound represented by the following Formula 1, and a liquid rubber prepared therefrom:
wherein R, R1 to R4, and o, p, q and r are described herein.
C08F 236/10 - Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated with vinyl aromatic monomers
40.
Curable Resin Composition and Adhesive Composition
Provided are a curable resin composition, which reduces environmental pollution by using an eco-friendly bio-based epoxy resin instead of the conventional petroleum-based epoxy resin, satisfies all the mechanical strength characteristics required by a curable resin composition containing the conventional petroleum-based epoxy resin, and has excellent productivity and excellent mechanical properties by dispersing a graft copolymer in a curable resin through a powder phase dispersion method, and an adhesive composition comprising the same.
An aerogel composite which maintains a high degree of hydrophobicity, and also an excellent level of heat insulation properties even when exposed to a high-temperature environment.
B01J 13/00 - Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided forMaking microcapsules or microballoons
A polyacrylic acid (salt)-based super absorbent polymer has a swelling factor (SF) value of 85 to 110 derived by Equation 1. Equation 1 is SF=1+[(7,700/w)×(AS-AR)/AS], wherein w is a weight (mg) of the super absorbent polymer, AS is an absorbance at 620 nm of a solution obtained by centrifuging an aqueous solution including the polyacrylic acid (salt)-based super absorbent polymer and Blue dextran under a condition of 200 G to 280 G, and AR is an absorbance at 620 nm of an aqueous solution including the Blue dextran, which is a reference sample.
B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
The present invention relates to a polyacrylic acid (salt)-based super absorbent polymer, wherein the super absorbent polymer has a capillary constant of 0.4 mm5 or more, as derived using n-hexane
C=OO-C=OC=OO-C=OO-C=O represents the content of carbon (at%) included in the O-C=O bonding structure with respect to the total elements present on the surface of the resin, according to XPS analysis.
A composition for preparing a super absorbent polymer may include clay, and the clay is uniformly dispersed in the composition to exhibit a low sedimentation rate and excellent dispersion stability even during long-term storage. The composition for preparing a super absorbent polymer can be used for preparing a super absorbent polymer having excellent absorption properties.
B01J 20/12 - Naturally occurring clays or bleaching earth
B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
B01J 20/30 - Processes for preparing, regenerating or reactivating
A resin composition according to one embodiment of the present invention comprises an epoxy resin, two or more phenolic resins; a thermoplastic resin; and an inorganic filler, wherein the ratio of the epoxy groups in the epoxy resin to the hydroxyl groups in the phenolic resins is 1:0.5 to 1:0.01, the epoxy resin includes a bisphenol-based epoxy resin, a phenol novolac-type epoxy resin, and a bixylenol-type epoxy resin, the phenolic resins include a naphthalene-containing phenolic resin and a triazine-containing phenolic resin, and the weight ratio of the naphthalene-containing phenolic resin to the triazine-containing phenolic resin is 1:2 to 2:1.
C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
C08L 29/14 - Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
C08G 59/20 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the epoxy compounds used
C08K 3/013 - Fillers, pigments or reinforcing additives
The present invention relates to: a carbon nanotube dispersion; a preparation method therefor; and an electrode slurry for a lithium secondary battery, comprising the carbon nanotube dispersion. The carbon nanotube dispersion comprises carbon nanotubes, a first dispersant comprising hydrogenated nitrile butadiene rubber, a second dispersant comprising at least one polymer selected from the group consisting of polyethylene glycol, poly (1,2-propylene glycol), poly (1,3-propylene glycol), polycaprolactone, polytetramethylene glycol, and polystyrene, a third dispersant comprising an alkanol amine-based compound, and a solvent.
The present invention relates to a dry electrode, comprising a binder polymer having a complex viscosity of 1500 Pa·s or less at 180 °C and at 0.1 Hz. The dry electrode according to the present invention can provide sufficient discharge capacity while significantly reducing the amount of VOC generated during manufacturing. In addition, mechanical strength can be sufficiently secured without using a fiberization method for the binder polymer.
A method including polymerizing a conjugated diene-based monomer, or the conjugated diene-based monomer and an aromatic vinyl-based monomer in a hydrocarbon solvent to prepare an active polymer; and reacting or coupling the active polymer with a modifier to prepare a modified conjugated diene-based polymer. Polymerization is initiated in the presence of a first polymerization initiator, and the polymerization reaction is performed by injecting a second polymerization initiator in at least one installment at a point where a polymerization conversion ratio is from 50% to 95%.
C08F 297/04 - Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type polymerising vinyl aromatic monomers and conjugated dienes
A novel compound of Chemical Formula 1:
A novel compound of Chemical Formula 1:
A novel compound of Chemical Formula 1:
where D is deuterium; a to c are each independently an integer of 0 to 6; R1 to R3 are each independently hydrogen, deuterium, or -La-Ra, with the proviso that at least one of R1 to R3 is -La-Ra; La is a single bond; or a substituted or unsubstituted C6-30 arylene; Ra is a substituted or unsubstituted C6-30 aryl a substituted or unsubstituted C2-30 heteroaryl containing at least one heteroatom of O and S, a fused ring of a substituted or unsubstituted C3-12 aliphatic ring and a C6-30 aryl or a substituted or unsubstituted C6-30 arylsilyl, with the proviso that the case where all of R1 to R3 are unsubstituted phenyl is excluded; and an organic light emitting device comprising the same.
An organic compound of Chemical Formula 1:
An organic compound of Chemical Formula 1:
An organic compound of Chemical Formula 1:
wherein: one or more of R1 to R10 are bonded to L1 in Chemical Formula 1-A below; one or more of R1 to R10 not bonded to L1 in Chemical Formula 1-A above are bonded to L2 in Chemical Formula 1-B below:
An organic compound of Chemical Formula 1:
wherein: one or more of R1 to R10 are bonded to L1 in Chemical Formula 1-A below; one or more of R1 to R10 not bonded to L1 in Chemical Formula 1-A above are bonded to L2 in Chemical Formula 1-B below:
An organic compound of Chemical Formula 1:
wherein: one or more of R1 to R10 are bonded to L1 in Chemical Formula 1-A below; one or more of R1 to R10 not bonded to L1 in Chemical Formula 1-A above are bonded to L2 in Chemical Formula 1-B below:
Ar1 is Chemical Formula 1-C, and Ar2 is Chemical Formula 1-D:
An organic compound of Chemical Formula 1:
wherein: one or more of R1 to R10 are bonded to L1 in Chemical Formula 1-A below; one or more of R1 to R10 not bonded to L1 in Chemical Formula 1-A above are bonded to L2 in Chemical Formula 1-B below:
Ar1 is Chemical Formula 1-C, and Ar2 is Chemical Formula 1-D:
An organic compound of Chemical Formula 1:
wherein: one or more of R1 to R10 are bonded to L1 in Chemical Formula 1-A below; one or more of R1 to R10 not bonded to L1 in Chemical Formula 1-A above are bonded to L2 in Chemical Formula 1-B below:
Ar1 is Chemical Formula 1-C, and Ar2 is Chemical Formula 1-D:
X is O or S; one of R101 to R108 is bonded to L1; at least one adjacent pair in R201 to R206 is bonded to each other to form one or more substituted or unsubstituted ring groups; any one of R201 to R206 not forming the substituted or unsubstituted ring group is bonded to L2; and the other substituents are as defined in the specification; and an organic light emitting device including the same.
The present invention relates to: a cathode active material; and a cathode and a lithium secondary battery which comprise same, the cathode active material capable of improving the performance of a lithium secondary battery and comprising a lithium iron phosphate manganese-based compound having a manganese (Mn) content of less than 50 mol% among all metals excluding lithium, wherein the lithium iron phosphate manganese-based compound includes doping elements (M), and the doping elements (M) are at least three selected from the group consisting of Al, B, Co, Mg, and Ni.
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
A method of preparing a positive electrode active material including preparing a composite transition metal hydroxide containing zirconium by a co-precipitation reaction while adding a transition metal-containing solution containing at least one of nickel, cobalt, or manganese, a zirconium-containing raw material, an ammonium cationic complexing agent, and a basic solution into a reactor and preparing a lithium composite transition metal oxide by mixing the composite transition metal hydroxide containing zirconium with a lithium-containing raw material and an aluminum-containing raw material to form a mixture and sintering the mixture. The lithium composite transition metal oxide includes zirconium, aluminum, and at least one of nickel, cobalt, or manganese. A positive electrode active material prepared by the preparation method is also provided.
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
C01G 53/42 - Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2
H01M 4/02 - Electrodes composed of, or comprising, active material
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
55.
MONOMER COMPOSITION FOR SYNTHESIZING RECYCLED PLASTIC, PREPARATION METHOD THEREOF, AND RECYCLED PLASTIC, MOLDED PRODUCT USING THE SAME
A monomer composition for synthesizing recycled plastic, a preparation method thereof, and a recycled plastic and a molded product using the same. The monomer composition for synthesizing recycled plastic includes an aromatic diol compound, wherein a ratio of aromatic diol compound derivative impurities according to the following Equation 1 is 0.3% or less, wherein the melting point is 156.4° C. or more, and wherein the monomer composition is recovered from a polycarbonate-based resin:
A monomer composition for synthesizing recycled plastic, a preparation method thereof, and a recycled plastic and a molded product using the same. The monomer composition for synthesizing recycled plastic includes an aromatic diol compound, wherein a ratio of aromatic diol compound derivative impurities according to the following Equation 1 is 0.3% or less, wherein the melting point is 156.4° C. or more, and wherein the monomer composition is recovered from a polycarbonate-based resin:
Ratio
of
aromatic
diol
compound
derivative
impurities
(
%
)
=
(
Peak
area
of
aromatic
diol
compound
derivative
measured
by
a
liquid
chromatography
/
Total
peak
area
measured
by
a
liquid
chromatography
)
×
100.
[
Equation
1
]
A super absorbent polymer, where a TD-NMR analysis result after swelling the super absorbent polymer with D2O satisfies Equation 1: Nt=0.1(%)≤50(%), where Nt=0.1 represents a normalized intensity measured at a signal acquisition time of 0.1 ms.
An aerogel composite has excellent thermal stability even when exposed to a high-temperature environment, thereby being capable of maintaining high heat insulation.
The present invention relates to a polyamide resin composition, a preparation method therefor, and a molded product comprising same. According to the present invention, the polyamide resin composition, the preparation method therefor, and the molded product comprising same are provided, the composition having excellent tensile strength and flexural modulus, and having excellent heat-aging resistance so as to minimize the influence of heat and the like due to exposure to external environments, thereby being useful for vehicles or electrical and electronic products that have a use environment exceeding 150°C and, particularly, require a heat resistance of 200°C or higher.
C08L 77/00 - Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chainCompositions of derivatives of such polymers
C08L 77/02 - Polyamides derived from omega-amino carboxylic acids or from lactams thereof
C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
C08L 71/00 - Compositions of polyethers obtained by reactions forming an ether link in the main chainCompositions of derivatives of such polymers
The present invention relates to a positive electrode material capable of enhancing the performance of a lithium secondary battery, the positive electrode material comprising: a first positive electrode active material having an olivine structure; and a second positive electrode active material having a layered structure, wherein the first positive electrode active material includes a lithium iron manganese phosphate compound having a manganese (Mn) content of 20 mol% (inclusive) to 40 mol% (exclusive) among all metals excluding lithium, and the first positive electrode active material is contained at an amount of 60 wt% to 80 wt% relative to the total weight of the first positive electrode active material and the second positive electrode active material.
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/136 - Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
The present invention relates to a super absorbent polymer, a preparation method thereof, and an absorbent article comprising same. More specifically, the present invention is directed to a technology that the super absorbent resin satisfies appropriate surface tension as well as excellent absorption properties, thereby achieving excellent absorption durability when applied to actual products
C08J 9/08 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
The present invention relates to a polyacrylic acid (salt)-based super absorbent polymer (SAP), which exhibits excellent physical crosslinking and chemical crosslinking by adjusting the normalized strength of the super absorbent polymer to have a predetermined range, while having excellent physical property balance.
A method for preparing acrylic acid, the method including: obtaining a first reaction product including lactic acid, a lactic acid dimer, water, and acrylic acid by supplying a lactic acid aqueous solution to a reactor to allow a dehydration reaction to proceed; supplying the first reaction product to a first cooling tower to separate the first reaction product into a lower fraction of the first cooling tower containing lactic acid and a lactic acid dimer and an upper fraction of the first cooling tower containing water and acrylic acid; obtaining a second reaction product by supplying the lower fraction of the first cooling tower to a lactic acid conversion tank and converting the lactic acid dimer into lactic acid; separating lactic acid from the second reaction product to recover lactic acid; and obtaining acrylic acid by separating acrylic acid from the upper fraction of the first cooling tower.
C07C 51/377 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reactions not involving formation of carboxyl groups by splitting-off hydrogen or functional groupsPreparation of carboxylic acids or their salts, halides, or anhydrides by reactions not involving formation of carboxyl groups by hydrogenolysis of functional groups
C07C 51/46 - SeparationPurificationStabilisationUse of additives by change of the physical state, e.g. crystallisation by distillation by azeotropic distillation
C07C 51/48 - SeparationPurificationStabilisationUse of additives by liquid-liquid treatment
The present invention relates to a transparent resin composition that includes a transparent matrix resin containing a chemically recycled monomer unit to reduce carbon emissions so as to be eco-friendly and have excellent mechanical properties and weather resistance, and a molded article formed therefrom.
C08L 33/06 - Homopolymers or copolymers of esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
C08K 5/3475 - Five-membered rings condensed with carbocyclic rings
C08L 51/04 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to rubbers
The present application provides a substrate comprising a spacer pattern. The present application can provide a substrate, which is applied to various optical devices, capable of evenly and stably maintaining a gap between substrates while maximally securing an active region without causing any optical defects, including a diffraction phenomenon, and the like. The present application can also provide an optical device comprising the substrate.
Provided are a curable resin composition, which reduces environmental pollution by using an eco-friendly bio-based epoxy resin instead of the conventional petroleum-based epoxy resin, satisfies all the mechanical strength characteristics required by a curable resin composition containing the conventional petroleum-based epoxy resin, and has excellent productivity and excellent mechanical properties by dispersing a graft copolymer in a curable resin through a powder phase dispersion method, and an adhesive composition comprising the same.
A polyacrylic acid (salt)-based super absorbent polymer may satisfy Equation 1. In Equation 1, DSap is a diffusion coefficient of ethanol in the polyacrylic acid (salt)-based super absorbent polymer measured by nuclear magnetic resonance (NMR) spectroscopy, and DE is a diffusion coefficient of pure ethanol as measured by nuclear magnetic resonance spectroscopy.
A polyacrylic acid (salt)-based super absorbent polymer may satisfy Equation 1. In Equation 1, DSap is a diffusion coefficient of ethanol in the polyacrylic acid (salt)-based super absorbent polymer measured by nuclear magnetic resonance (NMR) spectroscopy, and DE is a diffusion coefficient of pure ethanol as measured by nuclear magnetic resonance spectroscopy.
(
D
Sap
/
D
E
)
X
100
(
%
)
≤
92.5
(
%
)
[
Equation
1
]
B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
A polyacrylic acid (salt)-based super absorbent polymer has a T2 relaxation time of 1.85×10−5 seconds or less, as derived by exponential fitting of the TD-NMR measurement results of the super absorbent polymer through regression analysis using the following Equation 1:
A polyacrylic acid (salt)-based super absorbent polymer has a T2 relaxation time of 1.85×10−5 seconds or less, as derived by exponential fitting of the TD-NMR measurement results of the super absorbent polymer through regression analysis using the following Equation 1:
y
=
y
0
+
A
×
e
-
(
x
t
)
A polyacrylic acid (salt)-based super absorbent polymer has a T2 relaxation time of 1.85×10−5 seconds or less, as derived by exponential fitting of the TD-NMR measurement results of the super absorbent polymer through regression analysis using the following Equation 1:
y
=
y
0
+
A
×
e
-
(
x
t
)
wherein, y represents a signal intensity obtained through TD-NMR analysis, x represents an echo time determined from specified experimental parameters: first duration; last duration; and a data point, t represents a T2 relaxation time derived by exponential fitting, A represents a signal intensity value derived by exponential fitting, and y0 represents an offset constant derived through regression analysis.
B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
A polyacrylic acid (salt)-based super absorbent polymer has a T2 relaxation time of 1.85×10−5 seconds or less, as derived by exponential fitting of the TD-NMR measurement results of the super absorbent polymer through regression analysis using the following Equation 1:
A polyacrylic acid (salt)-based super absorbent polymer has a T2 relaxation time of 1.85×10−5 seconds or less, as derived by exponential fitting of the TD-NMR measurement results of the super absorbent polymer through regression analysis using the following Equation 1:
y
=
y
0
+
A
×
e
-
(
x
t
)
A polyacrylic acid (salt)-based super absorbent polymer has a T2 relaxation time of 1.85×10−5 seconds or less, as derived by exponential fitting of the TD-NMR measurement results of the super absorbent polymer through regression analysis using the following Equation 1:
y
=
y
0
+
A
×
e
-
(
x
t
)
wherein, y represents a signal intensity obtained through TD-NMR analysis, x represents an echo time determined from specified experimental parameters: first duration; last duration; and a data point, t represents a T2 relaxation time derived by exponential fitting, A represents a signal intensity value derived by exponential fitting, and y0 represents an offset constant derived through regression analysis.
232505050) of the second cathode active material, and the amount of the first cathode active material can be greater than the amount of the second cathode active material.
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
The present invention relates to a positive electrode material capable of improving the performance of a lithium secondary battery, and to a positive electrode and a lithium secondary battery comprising same, the positive electrode material comprising: a first positive electrode active material having an olivine structure; and a second positive electrode active material having a layered structure, wherein the first positive electrode active material includes a lithium iron phosphate manganese-based compound having a manganese (Mn) content of 20 mol% or more and 60 mol% or less among all metals excluding lithium, and satisfies formulas 1 and 2 described in the present specification.
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/136 - Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
The present invention relates to an electrochemical carbon dioxide conversion system comprising: a first electrode; a second electrode; and a separator which is positioned between the first electrode and the second electrode, is porous, and comprises a first layer and a second layer having mutually different average pore diameters.
Disclosed is an aerogel composite having excellent high-temperature thermal stability such that the degree of decomposition or loss of the aerogel component is low even when exposed to a high-temperature environment for an extended period of time, and having excellent thermal insulation properties little due to low weight change over time at high temperatures.
D06M 11/79 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereofSuch treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
B32B 17/02 - Layered products essentially comprising sheet glass, or fibres of glass, slag or the like in the form of fibres or filaments
The present invention relates to a super absorbent polymer that is a polyacrylic acid (salt)-based super absorbent polymer, has excellent chemical crosslinking due to the adjustment of the normalized strength of the super absorbent polymer to within a certain range, and has excellent balance of physical properties such as absorbency under pressure and liquid permeability.
The present invention relates to a polyacrylic acid (salt)-based superabsorbent polymer, in which the T2 relaxation time of the superabsorbent polymer is controlled within a specific range, so as to provide excellent physical crosslinking and chemical crosslinking and exhibit a superior balance of properties such as absorption capacity under load and liquid permeability.
The present invention relates to a polyacrylic acid (salt)-based super absorbent polymer, in which the diffusion coefficient value of ethanol in the super absorbent polymer is controlled to have a certain range, and thus the super absorbent polymer has excellent absorption rate as well as improved absorption properties such as centrifuge retention capacity and absorbency under pressure.
A biodegradable resin composition including a first biodegradable resin, a second biodegradable resin, and at least one selected from among an acryl-based copolymer and a compatibilized part formed from the acryl-based copolymer, wherein the acryl-based copolymer includes a methyl (meth)acrylate monomer unit, a (meth)acrylate monomer unit containing an epoxy group, and an alkyl (meth)acrylate-based monomer unit having 2 to 10 carbon atoms, and the (meth)acrylate monomer unit containing an epoxy group is included in an amount of 15 wt % to 60 wt %; and a biodegradable molded product molded from the biodegradable resin composition. The biodegradable resin composition has improved compatibility by using a chemical compatibilizer for improving compatibility between heterogeneous biodegradable resins, and thus has excellent mechanical properties.
The present disclosure relates to a thermoplastic resin composition, a preparation method therefor and a molded article comprising same, and, more specifically, to a thermoplastic resin composition, a preparation method therefor and a molded article comprising same, the composition comprising: (a) 15.5 to 26 wt% of a polyamide resin; (b) 9.5 to 17 wt% of a poly(arylene ether) resin; (c) 2 to 5.5 wt% of a modified poly (arylene ether) resin; (d) 0.5 to 4.5 wt% of at least one selected from the group consisting of an aromatic vinyl-based elastomer and an olefin-based elastomer; (e) 5.5 to 12.5 wt% of a metal phosphorus-based flame retardant; (f) 6.5 to 20.5 wt% of a metal silicate; (g) 15.5 to 38.5 wt% of glass fibers; and (h) 4.5 to 10 wt% of a flame retardant. According to the present invention the thermoplastic resin composition, which has excellent flame retardancy and electrical insulation, and delays flame propagation by forming ceramic during the occurrence of extreme heat or flames, thereby having excellent flame delay characteristics during thermal runaway so as to ensure safety of property and human life and being eco-friendly, the preparation method therefor, and the molded article comprising same are provided.
C08L 77/00 - Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chainCompositions of derivatives of such polymers
C08L 51/08 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
C08L 51/06 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
The present disclosure relates to a thermoplastic resin composition, a preparation method therefor, and a molded article comprising same and, more specifically, to a thermoplastic resin composition, a preparation method therefor, and a molded article comprising same, wherein the thermoplastic resin composition comprises: (a) 32.5 to 49 wt% of a polymer; (b) 7 to 20.5 wt% of a ceramic-forming binder; (c) 6.5 to 20.5 wt% of a ceramic-forming metal precursor; (d) 13 to 37 wt% of a ceramic-forming nonmetal precursor; and (e) 2 to 8 wt% of a flame retardant. According to the present invention, there is an effect of providing a thermoplastic resin composition, a method of preparing same, and a molded article comprising same, wherein the thermoplastic resin composition has excellent flame retardancy and electrical insulation, and forms ceramics at ultra-high temperatures and upon flame generation to delay flame propagation, thereby providing superior flame-retardant characteristics against thermal runaway, ensuring safety of property and human life, and being environmentally friendly.
A positive electrode active material for a secondary battery includes a lithium complex transition metal oxide and a surface coating portion. The lithium complex transition metal oxide includes nickel (Ni), cobalt (Co), and at least one selected from the group consisting of manganese (Mn) and aluminum (Al). The surface coating portion is formed on surfaces of the lithium complex transition metal oxide particles and the surface coating portion includes a cobalt-rich layer, which has a higher cobalt content than the lithium complex transition metal oxide, and a lithium boron oxide.
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
C01G 53/50 - Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese of the type (MnO2)n-, e.g. Li(NixMn1-x)O2 or Li(MyNixMn1-x-y)O2
H01M 4/02 - Electrodes composed of, or comprising, active material
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
80.
Ligand Compound, Organic Chromium Compound, and Catalyst Composition Including the Same
Provided are a ligand compound having Formula 1, which exhibits high catalytic activity while exhibiting high 1-hexene and 1-octene selectivity, thereby allowing ethylene oligomerization to be achieved with excellent efficiency, an organic chromium compound, a catalyst composition including the organic chromium compound, and a method for oligomerizing ethylene by using the same;
Provided are a ligand compound having Formula 1, which exhibits high catalytic activity while exhibiting high 1-hexene and 1-octene selectivity, thereby allowing ethylene oligomerization to be achieved with excellent efficiency, an organic chromium compound, a catalyst composition including the organic chromium compound, and a method for oligomerizing ethylene by using the same;
wherein all the variables are described herein.
C08F 4/60 - MetalsMetal hydridesMetallo-organic compoundsUse thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths, or actinides together with refractory metals, iron group metals, platinum group metals, manganese, technetium, rhenium, or compounds thereof
A biodegradable resin composition including heterogeneous biodegradable resins, and a biodegradable molded product molded therefrom, the resin composition having improved compatibility between the heterogeneous biodegradable resins and thus the resin composition is excellent in processability by preventing an increase in viscosity while having excellent mechanical properties. The resin composition includes a continuous phase and a dispersed phase, the continuous phase includes a first biodegradable resin, the dispersed phase includes a second biodegradable resin, a melt flow ratio, as measured with a load of 5 kg at 190° C. according to ISO 1133 is 3.0 g/10 min to 13.5 g/10 min, and a number of domains of a dispersed phase is 35 or more, when observing an image obtained by image-capturing at a magnification of 25,000 using transmission electron microscope (TEM).
C08L 33/06 - Homopolymers or copolymers of esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
A continuous solution polymerization process may include producing a product including a polymer through a polymerization process in a reactor; separating the product into a first solution including the polymer and a second solution including the polymer in the liquid-liquid separator; supplying the first solution to a devolatilizer and supplying the second solution to a solid-liquid separator (S/L separator); separating the second solution into a vapor including the polymer and a liquid-state polymer in the devolatilizer; separating the second solution and the vapor including the polymer into a solvent capable of being introduced into the reactor and a solid including the polymer in the solid-liquid separator (S/L separator); and introducing and recirculating the solvent capable of being introduced into the reactor into the reactor.
B01J 19/24 - Stationary reactors without moving elements inside
83.
PREPARATION METHOD OF MONOMER COMPOSITION FOR SYNTHESISING RECYCLED PLASTIC, AND MONOMER COMPOSITION FOR SYNTHESISING RECYCLED PLASTIC, RECYCLED PLASTIC USING THE SAME, MOLDED PRODUCT USING THE SAME
A method for preparing a monomer composition for synthesizing recycled plastic, a monomer composition for synthesizing recycled plastic, a recycled plastic using the same, and a molded product using the same. The method includes the steps of: subjecting a polycarbonate-based resin to a depolymerization reaction; adjusting the pH of the depolymerization reaction product having a pH of 13 or more to be 8 to 12; adjusting the pH of the depolymerization reaction product whose pH is adjusted to 8 to 12 to be less than 4; and adding a crystallization solvent to the depolymerization reaction product whose pH is adjusted to less than 4 and recovering the formed aromatic diol compound crystals.
C08J 11/16 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with inorganic material
C07C 37/00 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
84.
WATER ELECTROLYSIS CELL AND WATER ELECTROLYSIS STACK COMPRISING SAME
The present invention relates to a water electrolysis cell comprising: a separation plate including a first separation plate and a second separation plate; a membrane electrode assembly disposed between the first separation plate and the second separation plate and including an anode, a separation membrane, and a cathode; a gas diffusion layer disposed between the cathode and the first separation plate; a porous diffusion layer disposed between the anode and the second separation plate; and a titanium mesh layer, wherein the separation plate includes titanium, and the titanium mesh layer is not included between the cathode and the first separation plate.
C25B 9/21 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof with diaphragms two or more diaphragms
C25B 13/05 - DiaphragmsSpacing elements characterised by the material based on inorganic materials
C25B 13/08 - DiaphragmsSpacing elements characterised by the material based on organic materials
C25B 9/70 - Assemblies comprising two or more cells
C25B 1/04 - Hydrogen or oxygen by electrolysis of water
The present application relates to an optical device comprising a liquid crystal cell. In the optical device of the present application, even when dielectric layers other than a liquid crystal layer exist between an upper electrode layer and a lower electrode layer in the liquid crystal cell, a V90 voltage is not abnormally increased, and thus normal voltage driving is possible.
G02F 1/1347 - Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
G02F 1/1337 - Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
This invention relates to a method for preparing super absorbent polymer. More specifically, this invention relates to a method for preparing super absorbent polymer exhibiting excellent absorption properties, in which extractable contents and fine particles generated are remarkably decreased.
B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
B01J 20/30 - Processes for preparing, regenerating or reactivating
The present invention relates to a polyacrylic acid (salt)-based superabsorbent polymer in which the slip strain after 30% swelling of the superabsorbent polymer is 12.5% or less, and the absolute value of the slip strain change rate at 30% and 70% swelling, which is derived using relation 1, is 0.04 or less. [Relation 1] represents the slip strain change rate at 30% and 70% swelling = [(slip strain at 70% swelling)-(slip strain at 30% swelling)]/40]. The slip strain refers to the value at which the storage modulus rapidly decreases with increasing strain by using a rheometer to increase the strain from 0.01% to 100% at a frequency of 1 Hz and at a temperature of 25°C and observe the change in the storage modulus of each sample.
Crosslinking Agent Composition for Olefin-Based Copolymer, Encapsulant Composition for Optical Device Comprising the Same and Encapsulant Film for Optical Device
Provided are a crosslinking agent composition for an olefin-based copolymer, an encapsulant composition for an optical device, an encapsulant film for an optical device, and an optoelectronic device, wherein a compound of Formula 1 is applied in the crosslinking agent composition or the encapsulant composition including an olefin-based copolymer, as a crosslinking auxiliary agent, thereby forming an encapsulant composition for an optical device and an encapsulant film for an optical device, showing excellent productivity and high volume resistance and light transmittance:
Provided are a crosslinking agent composition for an olefin-based copolymer, an encapsulant composition for an optical device, an encapsulant film for an optical device, and an optoelectronic device, wherein a compound of Formula 1 is applied in the crosslinking agent composition or the encapsulant composition including an olefin-based copolymer, as a crosslinking auxiliary agent, thereby forming an encapsulant composition for an optical device and an encapsulant film for an optical device, showing excellent productivity and high volume resistance and light transmittance:
wherein R1 to R4 are described herein.
A polyacrylic acid (salt)-based super absorbent polymer has a slip strain (%) of 12.5% or less after the polyacrylic acid (salt)-based super absorbent polymer is subjected to 30% swelling. The slip strain means a value at a time when a storage modulus rapidly decreases with an increase in strain when a change in the storage modulus is observed by increasing the slip strain of each sample from 0.01% to 100% using a rheometer under a frequency of 1 Hz and a temperature of 25° C. The superabsorbent polymer has an absolute value of a rate of change in slip strain at 30% and 70% swelling derived by Equation 1 of 0.04 or less, wherein Equation 1 is Rate of change in slip strain at 30% and 70% swelling=[{(slip strain at 70% swelling)−(slip strain at 30% swelling)}/40].
A polyacrylic acid (salt)-based super absorbent polymer has a storage modulus (Pa) of 4,000 Pa or greater after the polyacrylic acid (salt)-based super absorbent polymer has been subjected to 50% swelling. The super absorbent polymer has an absolute value of a rate of change in storage modulus at 50% and 100% swelling derived by Equation 1 of 62 or less, wherein the Equation 1 is rate of change in storage modulus at 50% and 100% swelling=[{(storage modulus at 100% swelling)−(storage modulus at 50% swelling)}/50].
A battery life prediction device disclosed in the present document comprises: a communication unit for receiving battery data of a battery cell; and a control unit for deriving an efficiency index of the battery cell during a preset reference cycle on the basis of the battery data, and deriving a predicted discharge capacity following the reference cycle on the basis of a moving average of the efficiency index and the discharge capacity of the reference cycle.
G01R 31/392 - Determining battery ageing or deterioration, e.g. state of health
G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
G01R 31/382 - Arrangements for monitoring battery or accumulator variables, e.g. SoC
G01R 31/396 - Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
G01R 31/371 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with remote indication, e.g. on external chargers
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
93.
LATEX COMPOSITION FOR DIP MOLDING, PREPARATION METHOD THEREFOR, AND MOLDED ARTICLE
The present invention relates to a latex composition for dip molding having excellent latex stability and reduced foaming, a preparation method therefor, and a molded article molded therefrom with improved wearing comfort. The present disclosure provides a latex composition for dip molding, a preparation method therefor, and a molded article molded therefrom, the latex composition for dip molding comprising: a first carboxylic acid-modified nitrile-based copolymer latex including a first carboxylic acid-modified nitrile-based copolymer; and a second carboxylic acid-modified nitrile-based copolymer latex including a second carboxylic acid-modified nitrile-based copolymer, wherein the first carboxylic acid-modified nitrile-based copolymer latex and the second carboxylic acid-modified nitrile-based copolymer latex have a weight ratio of 1: 0.6 to 1.5, based on the solid content of each latex.
C08F 236/12 - Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated with nitriles
The present invention provides a super absorbent polymer in which the absorption properties have been improved by constantly controlling the change in storage elastic modulus according to the degree of swelling of the super absorbent polymer. In particular, the present invention relates to a super absorbent polymer that is excellent in terms of liquid permeability and absorption rate.
The present invention relates to: an organosilane compound; a hair coloring composition comprising same; and a hair coloring shampoo comprising same. Also, the present invention relates to a composition for hair. By comprising an organosilane compound having a specific structure, the composition according to the present invention can achieve the effects of preventing and reducing hair frizz, preventing thermal damage to hair, and styling hair.
A61K 8/58 - Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing atoms other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur or phosphorus
A separator, according to the present invention, has excellent adhesion to an electrode and can ensure sufficient porosity, and thus exhibits excellent resistance and ion conductivity characteristics. In addition, since lamination time can be shortened during the manufacture of an electrode assembly, high process efficiency in battery manufacturing can be achieved. Furthermore, the height of an inorganic particle filling part is minimized so that the energy density of a lithium secondary battery can be maximized.
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
H01M 50/446 - Composite material consisting of a mixture of organic and inorganic materials
A polyethylene that is able to realize excellent mechanical properties, e.g., dart drop impact strength, and transparency, along with excellent processability while having a density of 0.915 g/cm3 or more. A film including the polyethylene is also disclosed. The film has a dart drop impact strength of 1900 gf or more, as measured according to the Method A of ASTM D 1709 under conditions of a BUR (Blown-Up Ratio) of 2.3 to 3 and a film thickness of 45 μm to 55 μm. The film has a haze of 14% or less, as measured according to ISO 13468 standard.
The present invention relates to a photopolymer composition, a hologram recording medium, a preparation method thereof, and an optical element comprising the same. The photopolymer composition includes an electron donor whose reaction energy with a photosensitizing dye excited into a triplet state is-25 to 0 KJ/mol, thereby being able to provide a hologram recording medium that not only is excellent in optical recording characteristics such as diffraction efficiency which are the basic physical properties of hologram recording media, but also exhibits excellent high-temperature stability over time before recording optical information, so that it can exhibit the originally intended optical recording characteristics even when stored at room temperature to high temperature for a long period of time, and can reproduce clear images without problems such as halo.
G03H 1/02 - Holographic processes or apparatus using light, infrared, or ultraviolet waves for obtaining holograms or for obtaining an image from themDetails peculiar thereto Details
Provided is a thermoplastic resin composition comprising about 50 wt % to about 70 wt % of a base resin consisting of polyarylene ether resin and polystyrene resin in a ratio from about 4:6 to about 6:4, about 20 wt % to about 40 wt % of glass fiber with a sizing agent, about 1 wt % to about 5 wt % of an adhesion promoter or a multifunctional reactive agent, about 0 wt % to about 10 wt % of an impact modifier, and about 0.1 wt % to about 1.0 wt % of a hydrophobic additive, with wt % based on the total weight. The composition exhibits high tensile strength, impact strength, heat deflection temperature, and low cation leaching. Additionally, a method for preparing the composition involves melt-kneading the raw materials and extruding the mixture using an extruder with specific parameters, ensuring a controlled and efficient production process.
B29B 7/42 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
A method for producing a methane reforming catalyst according to one embodiment of the present application comprises the steps of: preparing a first solution including a precursor of a perovskite-based compound represented by chemical formula 1; preparing a second solution by adding a pore forming agent which is a hydrophilic oligomer or polymer to the first solution; and coating a support with the second solution and then performing a heat treatment process to produce a catalyst, wherein the viscosity of the second solution is 10 cP to 1,500 cP at 25℃.
B01J 23/00 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group
B01J 23/83 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups with rare earths or actinides
B01J 20/30 - Processes for preparing, regenerating or reactivating
B01J 37/02 - Impregnation, coating or precipitation
C01B 3/40 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts characterised by the catalyst
