To provide a cross-linking agent for a thermosetting resin that has excellent electrical properties, excellent thermosetting properties, and high glass transition temperature of a cured product thereof, enabling fabrication of a rigid substrate with excellent electrical properties required for next-generation high frequencies. A cross-linking agent for a thermosetting resin used for a rigid substrate material, containing three or more groups shown by the following formula (1) in a molecule. -O-R (1) In the formula, R represents a hydrocarbon group having at least one unsaturated bond and a cyclic structure in which all of the hydrogen atoms bonded to the cyclic structure are replaced by fluorine atoms.
An object of the present invention is to provide powder particles for improving the adhesive strength between a substrate and a fluororesin layer. The present invention is powder particles obtained by pre-mixing a hot-melt polymer and a filler in water to obtain an aqueous dispersion and then heating the aqueous dispersion.
To provide a novel fluororesin which is useful as an electronic substrate material for high-speed transmission. A fluororesin having a structure represented by formula (I) (n is within the range of from 1 to 100; L is a C5-C12 cycloalkylidene group which may have substituents; R3 and R4 are each independently a group selected from the group consisting of hydrogen, fluorine, C1-C10 saturated or unsaturated hydrocarbon groups in which some or all hydrogen is optionally substituted with halogens, and C6-C10 aryl groups in which some or all hydrogen is optionally substituted with halogens; and X is a group having an olefinic carbon-carbon double bond or a carbon-carbon triple bond).
To provide a novel fluororesin which is useful as an electronic substrate material for high-speed transmission. A fluororesin having a structure represented by formula (I) (n is within the range of from 1 to 100; L is a C5-C12 cycloalkylidene group which may have substituents; R3 and R4 are each independently a group selected from the group consisting of hydrogen, fluorine, C1-C10 saturated or unsaturated hydrocarbon groups in which some or all hydrogen is optionally substituted with halogens, and C6-C10 aryl groups in which some or all hydrogen is optionally substituted with halogens; and X is a group having an olefinic carbon-carbon double bond or a carbon-carbon triple bond).
Formula (I);
To provide a novel fluororesin which is useful as an electronic substrate material for high-speed transmission. A fluororesin having a structure represented by formula (I) (n is within the range of from 1 to 100; L is a C5-C12 cycloalkylidene group which may have substituents; R3 and R4 are each independently a group selected from the group consisting of hydrogen, fluorine, C1-C10 saturated or unsaturated hydrocarbon groups in which some or all hydrogen is optionally substituted with halogens, and C6-C10 aryl groups in which some or all hydrogen is optionally substituted with halogens; and X is a group having an olefinic carbon-carbon double bond or a carbon-carbon triple bond).
Formula (I);
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
4.
FLUORINE-CONTAINING COMPOSITION, VARNISH AND INSULATED WIRE CONTAINING THIS FLUORINE-CONTAINING COMPOSITION
To provide a fluorine-containing composition having both high flexibility and a low dielectric constant. A fluorine-containing composition comprising: a fluorine-containing compound; and a bifunctional crosslinking agent, wherein the fluorine-containing compound includes: constituent unit A containing a 3- to 12-membered cyclic structure in a main skeleton and having a structure in which 50% or more of hydrogen atoms in the cyclic structure are substituted with fluorine atoms; constituent unit B containing a benzene ring in a main skeleton and having a structure in which fluorine atoms account for 30% or less of the number of atoms in the constituent unit; and constituent unit C having an olefinic carbon-carbon double bond or a carbon-carbon triple bond; wherein the fluorine-containing compound contains constituent units A through C produced by bonding constituent unit C at a terminal, and amount of the bifunctional crosslinking agent is greater than 30% by mass to less than 70% by mass, based on the total of the fluorine-containing compound and the bifunctional crosslinking agent being 100% by mass.
C08F 216/12 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical by an ether radical
C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes
C09D 125/18 - Homopolymers or copolymers of aromatic monomers containing elements other than carbon and hydrogen
C09D 127/12 - Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogenCoating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
H01B 3/44 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes vinyl resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes acrylic resins
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
C09D 4/06 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups
The present invention provides: a porous membrane comprising polytetrafluoroethylene and/or modified polytetrafluoroethylene, which has a small pore diameter, is difficult to break, and is resistant to an external force such as penetration and the like; and a manufacturing method of same. Further provided is a porous membrane comprising polytetrafluoroethylene and/or modified polytetrafluoroethylene, where the bubble point due to isopropyl alcohol in accordance with JIS K3832 is 500 kPa or more, a numerical value obtained by dividing the maximum force until a needle penetrates by the thickness of a test piece is 200 mN/μm or more, based on a needle penetration strength test in accordance with JIS Z1707, the percentage of pore opening portions in a surface image by electron microscopy is 10 to 30%, and the fiber thickness is 250 nm or more.
To provide a paint composition capable of forming a coating film with excellent durability, which can be used for rubber sealing members used in contact with metal, and which can exhibit excellent adhesion to the sealing member itself and non-adhesiveness to the metal product that is the counterpart material over a long period of time. A paint composition for rubber sealing members containing hydrogenated acrylonitrile butadiene rubber and perfluorofluororesin, wherein the ratio of said hydrogenated acrylonitrile butadiene rubber to said perfluorofluororesin (solid mass ratio) is 25:75 to 55:45.
To provide a fluorine-containing compound that has excellent electrical properties, excellent thermosetting properties, a high glass transition temperature of the cured product, and excellent flame retardancy, enabling fabrication of substrates with excellent electrical properties required for the next-generation high frequencies. A fluorine-containing compound, containing: constituent unit A containing a 3 - to 12-membered cyclic structure in a main backbone and having a structure in which 50% or more of hydrogen atoms in the cyclic structure are substituted with fluorine atoms; constituent unit B containing a benzene ring in a main backbone and having a structure in which fluorine atoms account for 30% or less of the number of atoms in the constituent unit; and constituent unit C having an olefinic carbon-carbon double bond or a carbon-carbon triple bond; wherein constituent units A to C are made by bonding the constituent unit C at an end.
To provide a fluorine-containing compound that has excellent electrical properties required for next-generation high frequencies, and in addition, has a significantly reduced coefficient of thermal expansion (thermal expansion coefficient) and can prepare a substrate with excellent thermosetting properties. A fluorine-containing compound having a structure according to Formula (I) below (where L represents a specific divalent group, R3and R411061010 aryl group in which some or all of the hydrogens may be substituted with halogen, and X is a group containing an olefinic carbon-carbon double bond or a carbon-carbon triple bond), wherein the value of n is 1 to 4.
To provide a method of manufacturing a fluorine-containing compound that has excellent electrical properties, excellent thermosetting properties, remarkably low coefficient of thermal expansion of a cured product, and excellent dimensional stability, enabling fabrication of substrates with excellent electrical properties required for the next-generation high frequencies. A method of manufacturing a fluorine-containing compound, comprising: compounding compound B containing a benzene ring in a main backbone where fluorine atoms account for 30% or less of the number of atoms with compound A having a 3- to 12-membered cyclic structure in a main backbone where 50% or more of hydrogen atoms in the cyclic structure are substituted with fluorine atoms, at an A:B ratio (equivalent ratio) of 1:1.2 to 1:3.0, and compounding a reactive compound C having an olefinic carbon-carbon double bond or carbon-carbon triple bond at a ratio of 1:0.2 to 1:2.5 with regard to compound A, followed by mixing at a temperature of 10 to 200°C for 1 to 80 hours to synthesize a fluorine-containing compound having a structure according to the formula C-B-(A-B)n-C (where n is 1 to 4).
To provide a water-based coating capable of forming a coating film with excellent corrosion resistance and thermal conductivity, as well as a coating film and an article. A water-based coating composition, in which silicon carbide (SiC) particles and epoxy resin particles are dispersed in a water-based medium, wherein the ratio of the silicon carbide (SiC) excluding the water-based medium is 40 to 65% by mass.
Provided is a coating composition capable of forming a coating film capable of maintaining excellent tack-free properties (releasability) for a long period of time on a plastic substrate or a rubber substrate, and particularly an elastic substrate made of rubber. The coating composition contains a rubber and an oil that is a liquid at 25° C., wherein the oil is dispersed at an average particle diameter of 50 μm or less.
Disclosed are azeotropic or azeotrope-like compositions containing a hydrofluoroether and a chlorotrifluoropropene. The hydrofluoroether is at least one of methyl nonafluorobutyl ether, ethyl nonafluorobutyl ether, 2,2,2-trifluoroethyl-1,1,2,2-tetrafluoroethyl ether including isomers thereof. The compositions are azeotropic or azeotrope-like and are useful in cleaning applications.
Provided is a melt processible fluororesin molded article with reduced metal ions after molding (eluted metal ions) and submicron size fine particles. The melt processible fluororesin molded article has an amount of eluted Ni ions (in pg/cm2) and amount of eluted Cr ions (in pg/cm2) and amount of eluted Mo ions (in pg/cm2) in a test solution after eluting for 20 hours at 60° C. using 12% nitric acid, quantitatively analyzed by the ICP (induced coupled plasma) mass analysis method, satisfy the following formula:
Provided is a melt processible fluororesin molded article with reduced metal ions after molding (eluted metal ions) and submicron size fine particles. The melt processible fluororesin molded article has an amount of eluted Ni ions (in pg/cm2) and amount of eluted Cr ions (in pg/cm2) and amount of eluted Mo ions (in pg/cm2) in a test solution after eluting for 20 hours at 60° C. using 12% nitric acid, quantitatively analyzed by the ICP (induced coupled plasma) mass analysis method, satisfy the following formula:
0
.
5
≤
1
-
[
(
M
1
+
M
2
)
/
(
M
1
+
M
2
+
M
3
)
]
<
1
,
Provided is a melt processible fluororesin molded article with reduced metal ions after molding (eluted metal ions) and submicron size fine particles. The melt processible fluororesin molded article has an amount of eluted Ni ions (in pg/cm2) and amount of eluted Cr ions (in pg/cm2) and amount of eluted Mo ions (in pg/cm2) in a test solution after eluting for 20 hours at 60° C. using 12% nitric acid, quantitatively analyzed by the ICP (induced coupled plasma) mass analysis method, satisfy the following formula:
0
.
5
≤
1
-
[
(
M
1
+
M
2
)
/
(
M
1
+
M
2
+
M
3
)
]
<
1
,
wherein M1 refers to the eluted Cr ion amount (in pg/cm2), M2 refers to the eluted Mo ion amount (in pg/cm2), and M3 refers to the eluted Ni ion amount (in pg/cm2).
A curable fluoroelastomer composition includes a curable fluoroelastomer, a dehydrohalogenating agent, an acid acceptor including bismuth oxide present in the curable fluoroelastomer composition in an amount of at least 3 parts per hundred parts by weight of the curable fluoroelastomer, and at least one silicon-containing chemical present in the curable fluoroelastomer composition in an amount of at least 0.2 parts per hundred parts by weight of the curable fluoroelastomer. A cured fluoroelastomer cured from the curable fluoroelastomer composition has a static coefficient of friction and a dynamic coefficient of friction less than 1.
C08K 5/5425 - Silicon-containing compounds containing oxygen containing at least one C=C bond
C08L 27/12 - Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogenCompositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
C08L 27/20 - Homopolymers or copolymers of hexafluoropropene
An object of the present invention is to provide a hot-melt fluorine resin powder coating composition containing a filler, which has a large film thickness that can be coated once, a large limit film thickness for an overcoating, and can be thickly coated.
An object of the present invention is to provide a hot-melt fluorine resin powder coating composition containing a filler, which has a large film thickness that can be coated once, a large limit film thickness for an overcoating, and can be thickly coated.
The present invention is a powder coating composition, which is a powder mixture, containing: first hot-melt fluorine resin particles having an average particle diameter of 2 to 100 μm in which a filler is dispersed in the particles; second hot-melt fluorine resin particles having an average particle diameter of 10 to 200 μm; and charge controlling agent particles.
Provided is a novel fluororesin useful as an electronic substrate material for high speed transmission. The fluorine resin has the structure of Formula (I), wherein n is within a range of 1 to 100, L has the structure in Formula (II) or Formula (III), R1 and R2 are independently hydrogen atoms, C1 to C10 alkyl groups, C1 to C10 haloalkyl groups, or C6 to C10 aryl groups, or R1 and R2 may be combined to form a ring structure that may include a substituent, R3 and R4 are each independently hydrogen, fluorine, C1 to C10 saturated or unsaturated hydrocarbon groups in which a portion of or all hydrogens may be substituted with a halogen, and C6 to C10 aryl groups in which a portion of or all hydrogens may be substituted with a halogen, and X is a group containing an olefinic carbon-carbon double bond or a carbon-carbon triple bond and at least one fluorine atom.
Provided is a novel fluororesin useful as an electronic substrate material for high speed transmission. The fluorine resin has the structure of Formula (I), wherein n is within a range of 1 to 100, L has the structure in Formula (II) or Formula (III), R1 and R2 are independently hydrogen atoms, C1 to C10 alkyl groups, C1 to C10 haloalkyl groups, or C6 to C10 aryl groups, or R1 and R2 may be combined to form a ring structure that may include a substituent, R3 and R4 are each independently hydrogen, fluorine, C1 to C10 saturated or unsaturated hydrocarbon groups in which a portion of or all hydrogens may be substituted with a halogen, and C6 to C10 aryl groups in which a portion of or all hydrogens may be substituted with a halogen, and X is a group containing an olefinic carbon-carbon double bond or a carbon-carbon triple bond and at least one fluorine atom.
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
The present invention provides: an aqueous fluororesin coating composition which strongly adheres to various metal substrates, and can form a coating film with sufficient thickness having excellent water vapor resistance and corrosion resistance in a single coating; a coating film formed by applying the composition; and an article having the coating film. An aqueous fluororesin coating composition, comprising a water-soluble polyamide-imide resin, an aromatic polyether ketone, a fluororesin, and a filler, wherein the fluororesin is a perfluororesin, and the proportion of the binder resin is 35 to 55 mass% based on the total of the amount (resin solid fraction) of binder resin containing the water-soluble polyamide-imide resin, the aromatic polyether ketone, and other binder resins, and the amount of the fluororesin.
Disclosed are azeotropic compositions comprising a perfluoroheptene, and a chlorotrifluoropropene. Also disclosed herein are novel methods of using these compositions as novel solvents, degreasing or defluxing solvent, or carrier fluids.
Provided is a mold part which does not generate periodic irregularities (scale pattern) which appear in the direction orthogonal to the drawing direction (MD) of the mold part having a surface which slides parallel to a molded article when the molded article is removed from the mold after injection molding during injection molding of a thermoplastic resin (in particular, a thermoplastic fluoropolymer), an injection molding method using the same, and a molded article in which periodic irregularities (scale pattern) (which appear in the direction orthogonal to the drawing direction (MD) of the mold part) do not appear. The mold part is used for injection molding of a thermoplastic resin, and includes a surface which slides substantially parallel to a molded article when the molded article is removed from the mold after injection molding, wherein the average tilt angle in the sliding direction (MD) is 1.5° or higher.
B29C 33/44 - Moulds or coresDetails thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
B29C 45/44 - Removing or ejecting moulded articles for undercut articles
Provided are: an electrode comprising an electrode current collector, and an electrode layer that is disposed on the electrode current collector and includes an active material, a conductive material, a binder, and a fluorinated elastomer, wherein the electrode has a bending resistance of at most 10 mm phi (Φ); and a secondary battery and an energy storage device comprising the electrode.
A fluoropolymer binder composition is provided for use in a lithium-ion secondary battery cathode, containing tetrafluoroethylene polymer and elastomeric fluoropolymer. Cathode compositions are also provided containing this fluoropolymer binder composition together with cathode active particles and conductive carbon. The tetrafluoroethylene polymer is generally a high molecular weight non-melt fabricable tetrafluoroethylene homopolymer and modified tetrafluoroethylene homopolymer. The elastomeric fluoropolymer is generally a vinylidene fluoride elastomeric fluoropolymer. The cathode composition is formed by a process free from solvent, by dry mixing the fluoropolymer binder, cathode active and conductive carbon, and applying a shear force, whereby the tetrafluoroethylene polymer is fibrillated. The cathode compositions have fluoropolymer binder homogeneously dispersed in the major component cathode active, and have elasticity such that thin films of the cathode compositions can be formed into a cylindrical shape without fracture, enabling their utility as lithium-ion battery cathode electrode films.
To provide a resin pellet that is suitable for molding a molded product used in a semiconductor manufacturing apparatus and inherently has high cleanliness, and a molded product including the resin pellets used in a semiconductor manufacturing apparatus.
To provide a resin pellet that is suitable for molding a molded product used in a semiconductor manufacturing apparatus and inherently has high cleanliness, and a molded product including the resin pellets used in a semiconductor manufacturing apparatus.
A resin pellet including at least one selected from tetrafluoroethylene homopolymers or copolymers, wherein the evaporation residue after evaporating and drying the extract obtained by dissolving and extracting the fluorine-containing substance contained in or adhering to the resin pellet in a fluorine-containing extractant is 20×10−6 mg/mm2 or less.
An object of the present invention is to provide a granulated powder having good handleability and causing little desorption of a filler during production (granulation) or use. The present invention is a method for producing a polytetrafluoroethylene granulated powder, including stirring a mixture containing a filler, a polytetrafluoroethylene powder, and multi-hydrolyzable group-type silane coupling agent is in a mixed liquid of water and a water-insoluble organic liquid to perform mixed granulation.
Provided is a porous membrane including polytetrafluoroethylene and/or modified polytetrafluoroethylene having a small pore diameter, thin film thickness, high porosity, and high strength; and a method for manufacturing the same. The porous membrane including polytetrafluoroethylene and/or modified polytetrafluoroethylenehas bubble point of isopropyl alcohol according to JIS K3832 of 600 kPa or more, and tensile strength according to JIS K6251 of 90 MPa or more.
B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
To provide a fluororesin liquid coating composition for a fluororesin coating which strongly adheres to both metal base materials and resin base materials and exhibits excellent steam resistance and corrosion resistance, a coating film formed by applying the same, and an article having the coating film. A fluororesin liquid coating composition containing a fluororesin and a polyetherketoneketone (PEKK), a coating film consisting of the same, and an article having the coating film.
C08L 27/12 - Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogenCompositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
C09D 127/12 - Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogenCoating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
The present invention relates to a dust suppression processing agent composition for suppressing dust from dust generating material, the composition comprising an aqueous dispersion of a non-melt flowable tetrafluoroethylene copolymer, wherein the redispersion sedimentation rate of the copolymer is 60% or less and the concentration of perfluorooctanoic acid and a salt thereof is less than 10 ppb relative to the mass of the aqueous dispersion, thereby exhibiting an excellent dust suppressing effect, excellent re-dispersibility of non-melt flowable TFE copolymer particles, i.e. the solid content in the dust suppression processing agent composition after being left to stand for a long time, and excellent environmental performance.
The present invention relates to a dust suppression treatment method for suppressing dust from a dust-producing substance, characterized in that a dust suppression treatment agent composition composed of a non-melt-flowable tetrafluoroethylene copolymer aqueous dispersion is used, the redispersion sedimentation rate of the copolymer being 60% or less, and the amount of perfluorooctanoic acid and salts thereof being less than 10 ppb relative to the mass of the aqueous dispersion, the dust suppression treatment agent composition is mixed with a dust-producing substance, and the mixture is subjected to compression-shear action at a temperature of 20-200°C, whereby the tetrafluoroethylene copolymer is fibrillated to suppress the generation of dust by the dust-producing substance. The dust suppression treatment method has an exceptional dust suppression effect, exhibits exceptional redispersibility of the non-melt-flowable tetrafluoroethylene copolymer particles, which are the solids fraction in the dust suppression treatment agent composition, after said composition is allowed to stand for a long period of time, and additionally exhibits exceptional environmental performance.
51212 cycloalkylidene group which may have substituents; R3and R411061010 aryl groups in which some or all hydrogen is optionally substituted with halogens; and X is a group having an olefinic carbon-carbon double bond or a carbon-carbon triple bond).
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
Disclosed are azeotropic or azeotrope-like compositions containing a hydrofluoroether and a chlorotrifluoropropene. The hydrofluoroether is at least one of methyl nonafluorobutyl ether, ethyl nonafluorobutyl ether, 2,2,2-trifluoroethyl-1,1,2,2-tetrafluoroethyl ether including isomers thereof. The compositions are azeotropic or azeotrope-like and are useful in cleaning applications.
Disclosed are azeotropic or azeotrope-like compositions containing a hydrofluoroether and a chlorotrifluoropropene. The hydrofluoroether is at least one of methyl nonafluorobutyl ether, ethyl nonafluorobutyl ether, 2,2,2-trifluoroethyl-1,1,2,2-tetrafluoroethyl ether including isomers thereof. The compositions are azeotropic or azeotrope-like and are useful in cleaning applications.
The problem of the present invention is to provide a novel polytetrafluoroethylene porous film having a small pore diameter, small film thickness, high porosity, and high strength, and a production method thereof.
The present invention provides a polytetrafluoroethylene porous film, wherein a bubble point in isopropyl alcohol (IPA) according to JIS K3832 is not less than 400 kPa, and a tensile strength based on JIS K6251 is not less than 50 MPa.
B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
Provided is a melt molding manufacturing method wherein the mold exhibits excellent molded product releasability over a long period of time, and that can produce a molded product having a matte surface with suppressed surface gloss. The molding manufacturing method for manufacturing the molded product involves forming the melt molded product in a mold having a coating on the surface of the mold, wherein the coating is a layer of fluororesin having dispersed therein oil and filler having an average particle size of 300 nm or less.
Described is a peelable heat shrink tube composed of a fluororesin and having a determination coefficient calculated from [Equation 1] below using an elastic modulus ratio (%) of more than 0, but 0.90 or less:
Described is a peelable heat shrink tube composed of a fluororesin and having a determination coefficient calculated from [Equation 1] below using an elastic modulus ratio (%) of more than 0, but 0.90 or less:
Determination
coefficient
=
(
correlation
coefficient
)
2
=
[
(
covariance
)
(
standard
deviation
of
X
)
(
standard
deviation
of
Y
)
]
2
[
Equation
1
]
Described is a peelable heat shrink tube composed of a fluororesin and having a determination coefficient calculated from [Equation 1] below using an elastic modulus ratio (%) of more than 0, but 0.90 or less:
Determination
coefficient
=
(
correlation
coefficient
)
2
=
[
(
covariance
)
(
standard
deviation
of
X
)
(
standard
deviation
of
Y
)
]
2
[
Equation
1
]
where X, Y and covariance represent the following:
X: Proportion of the position of each point, where the elastic modulus was measured, from the interior of the tube
Y: Elastic modulus ratio in each region
Covariance: Average of the product of deviations of X and Y.
F16L 11/12 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
Provided is a coating composition capable of forming a coating film capable of maintaining excellent tack-free properties (releasability) for a long period of time on a plastic substrate or a rubber substrate, and particularly an elastic substrate made of rubber. The coating composition contains a rubber and an oil that is a liquid at 25°C, wherein the oil is dispersed at an average particle diameter of 50 µm or less.
C09D 121/00 - Coating compositions based on unspecified rubbers
C09D 127/12 - Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogenCoating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
An object of the present invention is to provide a hot-melt fluorine resin powder coating composition containing a filler, which has a large film thickness that can be coated once, a large limit film thickness for an overcoating, and can be thickly coated. The present invention is a powder coating composition, which is a powder mixture, containing: first hot-melt fluorine resin particles having an average particle diameter of 2 to 100 μm in which a filler is dispersed in the particles; second hot-melt fluorine resin particles having an average particle diameter of 10 to 200 μm; and charge controlling agent particles.
An object of the present invention is to provide: a porous membrane comprising polytetrafluoroethylene and/or modified polytetrafluoroethylene, which has a small pore diameter, is difficult to break, and is resistant to an external force such as penetration and the like; and a manufacturing method of same. To provide a porous membrane comprising polytetrafluoroethylene and/or modified polytetrafluoroethylene, where the bubble point due to isopropyl alcohol in accordance with JIS K3832 is 500 kPa or more, a numerical value obtained by dividing the maximum force until a needle penetrates by the thickness of a test piece is 200 mN/µm or more, based on a needle penetration strength test in accordance with JIS Z1707, the percentage of pore opening portions in a surface image by electron microscopy is 10 to 30%, and fiber thickness is 250 nm or more.
B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
B29C 55/00 - Shaping by stretching, e.g. drawing through a dieApparatus therefor
To provide a novel fluororesin useful as an electronic substrate material for high speed transmission. A fluorine resin having the structure of Formula (I) (wherein, n is within a range of 1 to 100, L has the structure in Formula (II) or Formula (III), R1and R211011061010 aryl groups, or R1and R2may be combined to form a ring structure that may include a substituent, R3and R411061010 aryl groups in which a portion of or all hydrogens may be substituted with a halogen, and X is a group containing an olefinic carbon-carbon double bond or a carbon-carbon triple bond and at least one fluorine atom.
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
C08G 65/48 - Polymers modified by chemical after-treatment
H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
Disclosed are azeotropic compositions comprising a perfluoroheptene, and a chlorotrifluoropropene. Also disclosed herein are novel methods of using these compositions as novel solvents, degreasing or defluxing solvent, or carrier fluids.
C11D 11/00 - Special methods for preparing compositions containing mixtures of detergents
39.
SOLVENT FOR GAS CHROMATOGRAPY MASS SPECTOMETRY, AND METHOD FOR DETERMINATION OF FLUORINE-CONTAINING SUBSTANCES ON THE SURFACE OF FLUORORESIN MELT-MOLDED PRODUCTS
Provided is a fluorine-containing solvent for gas chromatography mass spectrometry of fluorine-containing substances found contaminating surfaces of fluororesin melt-molded products and detrimental to the use of such products for handling fluids in semiconductor manufacture. Also provided is a quantitative determination method for such fluorine-containing substances and a qualitative analysis method for such fluorine-containing substances based on a gas chromatography mass spectrometry method using the fluorine-containing solvent to enable the determination of the presence or absence of trace amounts of contaminant fluorine-containing substances existing as fine particles on surfaces of melt-molded fluororesin products.
Provided is a compression molding composition, in which an emulsion-polymerized polytetrafluoroethylene (PTFE) and a filler are mixed in a substantially uniform manner without generating an aggregate, and the used PTFE is not particularly limited. The compression molding composition includes emulsion-polymerized polytetrafluoroethylene, a heat-processible fluoropolymer, and a filler, the melt flow rate (MFR) of the heat-processible fluoropolymer is from 0.01 to 100 g/10 min, and the content of the heat-processible fluoropolymer is from 1 to 40 mass% relative to the total of the emulsion-polymerized polytetrafluoroethylene and the heat-processible fluoropolymer.
Provided is a fluororesin coating composition for forming a topcoat having improved non-tackiness and water and oil repellency. The fluororesin is crystalline tetrafluoroethylene and perfluoro(ethyl vinyl ether) copolymer having a perfluoro(ethyl vinyl ether) content of 8 to 20 mass % based on the total mass of the copolymer.
C09D 127/18 - Homopolymers or copolymers of tetrafluoroethene
B05D 3/02 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
B05D 5/08 - Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
To provide a resin pellet that is suitable for molding a molded product used in a semiconductor manufacturing apparatus and inherently has high cleanliness, and a molded product including the resin pellets used in a semiconductor manufacturing apparatus. A resin pellet including at least one selected from tetrafluoroethylene homopolymers or copolymers, wherein the evaporation residue after evaporating and drying the extract obtained by dissolving and extracting the fluorine-containing substance contained in or adhering to the resin pellet in a fluorine-containing extractant is 20 × 10 -6mg/mm2 or less.
Provided is a melt processible fluororesin composition for injection molding of articles that has melt flow that facilitates injection molding, that can enhance strength of a fluororesin weld line area in an injection molded article, and that achieves excellent release from a mold. The fluororesin composition includes two or more types of melt processible fluororesins having different melt flow rates; one of the melt processible fluororesins being a high melt flow rate melt processible fluororesin having a melt flow rate of 35 g/10 min or greater, and another being a low melt flow rate melt processible fluororesin having a melt flow rate of 10 g/10 min or greater but less than 35 g/10 min; and wherein the ratio of the melt flow rate (MFRa) of the high MFR melt processible fluororesin to the melt flow rate (MFRb) of the low MFR melt processible fluororesin (MFRa/MFRb) is from 1 to 10.
Provided is a mold part which does not generate periodic irregularities (scale pattern) which appear in the direction orthogonal to the drawing direction (MD) of the mold part having a surface which slides parallel to a molded article when the molded article is removed from the mold after injection molding during injection molding of a thermoplastic resin (in particular, a thermoplastic fluoropolymer), an injection molding method using the same, and a molded article in which periodic irregularities (scale pattern) (which appear in the direction orthogonal to the drawing direction (MD) of the mold part) do not appear. The mold part is used for injection molding of a thermoplastic resin, and includes a surface which slides substantially parallel to a molded article when the molded article is removed from the mold after injection molding, wherein the average tilt angle in the sliding direction (MD) is 1.5° or higher.
B29C 33/42 - Moulds or coresDetails thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
B29C 33/44 - Moulds or coresDetails thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
Provided is a porous membrane including polytetrafluoroethylene and/or modified polytetrafluoroethylene having a small pore diameter, thin film thickness, high porosity, and high strength; and a method for manufacturing the same. The porous membrane including polytetrafluoroethylene and/or modified polytetrafluoroethylenehas bubble point of isopropyl alcohol according to JIS K3832 of 600 kPa or more, and tensile strength according to JIS K6251 of 90 MPa or more.
Provided is a coating film having excellent durability and wear resistance, and utility as mold surface release coating. The coating film has excellent releasability (non-adhesiveness) over a long period of time. Further provided is a coating composition capable of forming such a coating film, the coating composition containing a fluoropolymer and an oil that is a liquid at 25° C., wherein the decomposition temperature of the oil is higher than the melting point of the fluoropolymer.
Provided is: an aqueous fluororesin coating composition which strongly adheres to metal substrates, in particular stainless steel (SUS), while combining excellent water vapor resistance and corrosion resistance so as to be suitably used in cookware such as fry pans or rice cookers, in addition to also being excellent from an environmental and safety hygienic standpoint; a coating film formed by the coating thereof; and an article having the coating film. The aqueous fluororesin coating composition includes: a water-soluble polyamide-imide resin; a polyether ether ketone; and a perfluororesin.
The purpose of the present invention is to provide: a polytetrafluoroethylene porous film having high strength, high porosity, small pore diameter and thin film thickness; and a method for producing the same. The polytetrafluoroethylene porous film is characterized in that the isopropyl alcohol bubble point thereof based on JIS K3832 is at least 400kPa, and the tensile strength thereof based on JIS K6251 is at least 50 MPa.
B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
The purpose of the present invention is to provide a heat-shrinkable tube that not only has superior expansion strength and tearability but also ensures a sufficient heat shrinkage rate, the heat-shrinkable tube being superior in both tearability and heat shrinkability and also superior in transparency. The heat-shrinkable tube made of a fluorine resin and having tearability according to the present invention is characterized in that a determination coefficient calculated with [Formula 1] below using an elastic modulus ratio (%) is in the range of 0 to 0.90, exclusive of 0, the elastic modulus ratio (%) being obtained by measuring, on a straight line passing through regions (A), (B), and (C) below, where the thickness of the tube at a cross-section perpendicular to the extrusion direction of the tube is 100%, the elastic moduli of at least three points freely selected from each region, and by calculating, as the elastic modulus ratio (%), the ratio of the average value of the elastic moduli in each region and the average value of the elastic moduli in all the regions. (A) Region of less than 30% from the inside of the tube (B) Region of 30 to 70% from the inside of the tube, exclusive of 70% (C) Region of 70% or more from the inside of the tube In [Formula 1], X, Y, and covariance represent the followings. X: Proportion of the position of each point of elastic modulus measurement from the inside of the tube Y: Elastic modulus ratio in each region Covariance: Average of products of deviations of X and Y
Provided is an aqueous fluororesin coating composition which strongly adheres to metal substrates such as stainless steel (SUS), while exhibiting excellent water vapor resistance and corrosion resistance. The fluororesin coating composition has utility as coating for cookware such as fry pans or rice cookers, and is also superior from an environmental and safety hygienic standpoint. The fluororesin coating composition contains water-soluble polyamide-imide resin, polyetherimide, polyethersulfone, and fluororesin.
Provided is a melt molding manufacturing method wherein the mold exhibits excellent molded product releasability over a long period of time, and that can produce a molded product having a matte surface with suppressed surface gloss. The molding manufacturing method for manufacturing the molded product involves forming the melt molded product in a mold having a coating on the surface of the mold, wherein the coating is a layer of fluororesin having dispersed therein oil and filler having an average particle size of 300 nm or less.
B29C 33/62 - Releasing, lubricating or separating agents based on polymers or oligomers
B05D 5/08 - Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
C09D 127/18 - Homopolymers or copolymers of tetrafluoroethene
52.
SOLVENT FOR GAS CHROMATOGRAPY MASS SPECTOMETRY, AND METHOD FOR DETERMINATION OF FLUORINE-CONTAINING SUBSTANCES ON THE SURFACE OF FLUORORESIN MELT-MOLDED PRODUCTS
Provided is a fluorine-containing solvent for gas chromatography mass spectrometry of fluorine-containing substances found contaminating surfaces of fluororesin melt-molded products and detrimental to the use of such products for handling fluids in semiconductor manufacture. Also provided is a quantitative determination method for such fluorine-containing substances and a qualitative analysis method for such fluorine-containing substances based on a gas chromatography mass spectrometry method using the fluorine-containing solvent to enable the determination of the presence or absence of trace amounts of contaminant fluorine-containing substances existing as fine particles on surfaces of melt-molded fluororesin products.
A PFA molded article of a copolymer (PFA) of tetrafluoroethylene (TFE) and perfluoro(alkylvinyl ether) (PAVE), the content of the PAVE therein being from 1 to 10% by mol, characterized in that the PFA molded article has a flex life value of not less than 2,000,000 times, a zero shear viscosity of from 10,000 to 20,000 Pa·s, and a heating weight loss of not more than 0.05% by weight, and a process for the production thereof. The PFA molded article has a high flex life value, a low heating weight loss and a low zero share viscosity yet maintaining excellent mechanical properties such as tensile strength, etc., and can be produced in good yields.
Provided are aqueous fluororesin coating compositions including a water-soluble polyamideimide resin, a polyetherimide, and a fluororesin. Also provided are coatings on substrates formed from the coating composition and coated substrates, the coatings being strongly adhered to the substrates and having excellent water vapor and corrosion resistance. The coatings are of utility for metal substrates, for example cookware such as a frying pans and rice cookers.
C09D 127/12 - Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogenCoating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
A47J 36/02 - Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
56.
MELT PROCESSIBLE FLUORORESIN COMPOSITION AND INJECTION MOLDED ARTICLE FORMED FROM SAME
Provided is a melt processible fluororesin composition for injection molding of articles that has melt flow that facilitates injection molding, that can enhance strength of a fluororesin weld line area in an injection molded article, and that achieves excellent release from a mold. The fluororesin composition includes two or more types of melt processible fluororesins having different melt flow rates; one of the melt processible fluororesins being a high melt flow rate melt processible fluororesin having a melt flow rate of 35 g/10 min or greater, and another being a low melt flow rate melt processible fluororesin having a melt flow rate of 10 g/10 min or greater but less than 35 g/10 min; and wherein the ratio of the melt flow rate (MFRa) of the high MFR melt processible fluororesin to the melt flow rate (MFRb) of the low MFR melt processible fluororesin (MFRa/MFRb) is from 1 to 10.
C08L 27/22 - Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogenCompositions of derivatives of such polymers modified by chemical after-treatment
C08L 27/18 - Homopolymers or copolymers of tetrafluoroethene
Cleaning composition which is suitable for cleaning precision machinery parts and exhibits a small environmental burden as well as excellent safety and economic efficiency. The cleaning composition comprises 50-80% by weight Z-1,1,1,4,4,4-hexafluoro-2-butene, 10-30% by weight methylperfluoroheptene ethers, and 5-25% by weight ethanol. Also disclosed is a cleaning method comprising: cleaning an object having particulate contamination using the composition in a cleaning tank (liquid layer) and rinsing with a rinsing layer (steam layer), wherein the temperature difference between the cleaning tank and the rinsing layer is not less than 20°C.
Provided is a coating film having excellent durability and wear resistance, and utility as mold surface release coating. The coating film has excellent releasability (non-adhesiveness) over a long period of time. Further provided is a coating composition capable of forming such a coating film, the coating composition containing a fluoropolymer and an oil that is a liquid at 25C, wherein the decomposition temperature of the oil is higher than the melting point of the fluoropolymer.
Provided is a material for a shape memory molded article and a shape memory molded article that exhibits superior shape memory capabilities, the material being a heat-fusible perfluoro resin having a glass transition temperature in the range of 10 to 60°C, and wherein the shape memory molded article exhibits shape memory capabilities in the temperature range of 30 to 100°C.
The present invention aims to solve the above mentioned problems by providing a new azeotrope-like composition that can be used for a wide range of industrial purposes. The provision of an azeotrope-like composition including 93.0-99.0 weight percent Z-1,1,1,4,4,4-hexafluoro-2-buteine and 0.1-7 weight percent isopropanol.
C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa
C08J 9/14 - 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 physical blowing agent organic
Provided is a perfluororesin coating composition for forming a topcoat having improved non-tackiness and water and oil repellency. The perfluororesin is crystalline tetrafluoroethylene and perfluoro(ethyl vinyl ether) copolymer having a perfluoro(ethyl vinyl ether) content of 8 to 20 mass% based on the total mass of the copolymer.
Provided is a molded body with a hollow portion comprising tetrafluoroethylene and perfluoro(alkyl vinyl ether) copolymer, which is obtained by heat treating a molded body with a hollow portion obtained by melt molding tetrafluoroethylene and perfluoro(alkyl vinyl ether) copolymer having a melt flow rate of 0.1 to 100 g/10 min when measured with a load of 5 kg and a measurement temperature of 372±0.1° C. in accordance with ASTM D1238. The heat treatment is carried out at a temperature from 130° C. below the melting point of the copolymer to the melting point of the copolymer. The molded body exhibits excellent blister resistance when utilized in contact with harsh chemicals and under harsh operating conditions.
[Object of this invention] To provide the amorphous fluorine-containing resin composition that has superior film-forming ability, and has a small impact on the global environment due to its very small global warming potential, and can fully satisfy the requirement from the perspective of the environmental protection of the earth; and to provide the article that contains the coating that is formed from the thin films that are made from this amorphous fluorine-containing resin. composition.
[Means to solve the problems] The amorphous fluorine-containing resin composition that dissolves the amorphous fluorine-containing resin in alkoxy fluoroalkene. This invention also provides the article that contains the coating that is formed from the thin films that are made from this amorphous fluorine-containing resin composition.
C08J 3/11 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids from solid polymers
C09D 127/18 - Homopolymers or copolymers of tetrafluoroethene
C08J 3/09 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids
C09D 127/12 - Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogenCoating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
Purpose: To provide a melt-moldable tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer with excellent durability without causing an excessive decrease of the melt flow rate and an increase of the perfluoro(alkyl vinyl ether) content. Solution means: A melt-moldable tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer, which is characterized in that in a parallel plate mode of a dynamic viscoelasticity measuring device, when the temperature is raised from −40° C. to 200° C. at 5° C./min while fixing the measuring frequency to 1 Hz, the slope (Δ tan δ/ΔT) of the loss tangent (tan δ) measured between two arbitrary points in a range of 50-75° C. and at a temperature difference of 3° C. or higher is always in a range of 0.0005-0.0030, and its preparation method.
Described herein are fluororesin compositions of melt processible fluororesin and wholly aromatic polyamide fibers. The wholly aromatic polyamide fibers have an average fiber diameter of 10-20 μm and an average fiber length of 100-1,000 μm. The compositions are melt processible and can be melt molded into sliding members having low wear when used with sliding counterparts made of metals such as aluminum, copper, zinc or nickel.
C08L 27/12 - Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogenCompositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
Disclosed are injection-moldable fluororesin compositions of melt flowable fluororesin and mesoporous silica. The fluororesin compositions are melt flowable and have a melt flow rate of from 2 to 60 g/10 min. The mesoporous silica has an average pore diameter of from 2 to 50 nm, and the pores of the mesoporous silica are filled with the melt flowable fluororesin. The fluororesin compositions have excellent melt moldability for manufacturing molded products from the fluororesin composition that demonstrate high hardness.
Provided is a large-size injection molded article which is obtained by injection molding a composition containing a heat-meltable fluoropolymer. Specifically, provided is a large-size injection molded article, which can be molded at a lower injection pressure as compared with a conventional PFA and obtained by molding a composition superior in mold release characteristics from a metal mold. This large-size injection molded article is superior in, particularly, heat resistance and chemical resistance, as well as dimensional accuracy, for a substrate processing apparatus.
2 or more, obtained by injection molding a composition containing a heat-meltable fluoropolymer. It is a preferable aspect that the composition including a heat-meltable fluoropolymer is a composition containing a melt moldable tetrafluoroethylene/fluoroalkoxytrifluoroethylene copolymer having an MFR over 60 g/10 minutes.
C08L 27/18 - Homopolymers or copolymers of tetrafluoroethene
H01L 21/67 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components
B29K 27/12 - Use of polyvinylhalogenides as moulding material containing fluorine
The present invention provides a polymer particle comprising a polymer and a filler contained therein, wherein the polymer is soluble in an organic solvent and is also water insoluble, and wherein the polymer particle contains from 5 to 500 parts by weight of filler per 100 parts by weight of polymer, and a mean particle size of 75 μm or less. The invention also provides an aqueous dispersion including this particle; an aqueous fluororesin coating composition that uses this aqueous dispersion; and a fluororesin laminate or layered coating having a layer obtained from this fluororesin coating composition.
C09D 167/00 - Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chainCoating compositions based on derivatives of such polymers
C08J 3/07 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from polymer solutions
C08J 3/14 - Powdering or granulating by precipitation from solutions
C09D 127/18 - Homopolymers or copolymers of tetrafluoroethene
C09D 177/00 - Coating compositions based on polyamides obtained by reactions forming a carboxylic amide link in the main chainCoating compositions based on derivatives of such polymers
C09D 179/08 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
A fluoropolymer molding method and the resulting molded article are disclosed where the fluoropolymer is composed of fluoropolymer particles each having a multi-layer structure that consists of at least two types of fluoropolymers having different melting points, with at least one inner layer made of a fluoropolymer with a melting point higher than that of the outermost fluoropolymer. The fluoropolymer of the at least one inner layer is molded at a temperature higher than the melting point of the lowest melting point of the fluoropolymers that form the outermost layers of the multi-layer-structure fluoropolymer particles, and lower than the melting point of the fluoropolymer having the highest melting point. The resulting articles have excellent chemical liquid resistance and gas impermeability and low linear expansion coefficient.
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
C08L 27/18 - Homopolymers or copolymers of tetrafluoroethene
71.
Polymer composition with uniformly distributed nano-sized inorganic particles
A polymer composition is disclosed wherein inorganic particles are uniformly dispersed at the nano level in a polymer without having the inorganic particles being surface-treated. Further disclosed is a method for manufacturing a polymer composition wherein a co-aggregate which is obtained by uniformly mixing polymer dispersion with an inorganic particle colloidal solution and co-aggregating the polymer primary particles and inorganic particles which are heterogeneous particles, is separated from the solvent and dried so that the inorganic particles are uniformly dispersed at the nano level in the polymer.
1, measured at 1 rad/sec is 1.5 or greater, viscosity being measured at 340° C. A method for making the perfluoropolymer composites is provided, and molded articles therefrom. And additionally, perfluoropolymer composites, where layered-silicates having properties of swelling or cleaving in dispersion media are dispersed in perfluoropolymers, with the storage elasticity of 2 times or higher than that of fluoropolymers, at temperatures greater than the glass transition temperature of perfluoropolymers.
B32B 5/00 - Layered products characterised by the non-homogeneity or physical structure of a layer
B32B 5/16 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer formed of particles, e.g. chips, chopped fibres, powder
C08L 27/12 - Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogenCompositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
A fluoropolymer molding method and the resulting molded article are disclosed where the fluoropolymer is composed of fluoropolymer particles each having a multi-layer structure that consists of at least two types of fluoropolymers having different melting points, with at least one inner layer made of a fluoropolymer with a melting point higher than that of the outermost fluoropolymer. The fluoropolymer of the at least one inner layer is molded at a temperature higher than the melting point of the lowest melting point of the fluoropolymers that form the outermost layers of the multi-layer-structure fluoropolymer particles, and lower than the melting point of the fluoropolymer having the highest melting point. The resulting articles have excellent chemical liquid resistance and gas impermeability and low linear expansion coefficient.
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
C08L 27/18 - Homopolymers or copolymers of tetrafluoroethene
74.
Non-stick coating composition comprising diamond particles and substrate
A non-stick coating composition comprising diamond particles of relatively large size, i.e., greater than 1 micrometer, preferably greater than 10 micrometers, and a fluoropolymer, can be applied to a substrate. In addition, a structure comprising a substrate and an undercoat is applied to the substrate, where the undercoat comprises a primer layer comprising a heat resistant non-fluoropolymer polymer binder and diamond particles, and optionally a midcoat also comprising diamond particles.
An improved circuit substrate is provided wherein glass cloth is completely embedded within fluoropolymer by thermocompression to form a composite structure, which when containing an adhesive agent such as the combination of functional groups and liquid crystal polymer is self-adhering to a metal layer such as of copper.
A functionalized fluoropolymer, preferably with phosphate functionality, can be coated on a metal oxide containing rubber substrate, which coating, after heating, results in a fluoropolymer-rubber substrate laminate without degradation of the rubber, and with good adhesion between the fluoropolymer and the rubber.
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
patents
