The properties of charcoal can be improved by providing microcapsules containing an ignitable material on or within the charcoal. The microcapsules can be made of polyacrylate and the ignitable material includes hydrocarbons such as a paraffin combination, alcohols, and combinations.
A process of forming a population of microcapsules is described comprising a liquid hydrophilic core material and a wall material at least partially surrounding the core material. The liquid hydrophilic core material can be anionic, cationic, or neutral but polar. The microcapsule population is formed by providing liquid hydrophilic core material; providing an oil continuous phase which is low boiling and preferably nonflammable, the oil continuous phase comprising preferably one or more organic oil materials such as esters with chain length up to about 42 carbons. A mixture is formed by dispersing the liquid hydrophilic material in the oil continuous phase. Either an oil soluble or dispersible monofunctional amine acrylate or monofunctional amine methacrylate, along with acid; or alternatively monofunctional acid acrylate or monofunctional acid methacrylate along with base; or alternatively, monofunctional amine acrylate or monofunctional amine methacrylate along with acid acrylate or methacrylate; is added. A multifunctional acrylate or methacrylate monomer or oligomer is provided along with an initiator. Optionally a surfactant is also added to form the mixture. Emulsification is achieved by subjecting the mixture to high shear agitation and heating the mixture for a time sufficient to enable forming a prepolymer which migrates to the liquid hydrophilic material, thereby forming prepolymers adhered to the hydrophilic core materials. Heating is carried out or light exposure or both for a time and temperature sufficient to crosslink the prepolymers.
Disclosed are encapsulating methods and encapsulated products. A payload material may be encapsulated within a wall material. The carrier material and payload material form a combination that is at least substantially solid at room temperature but that is sufficiently fluid at milling temperature to permit milling and subsequent encapsulation. The payload material may be, for instance, a bitter tasting material. In some embodiments, the microcapsules will serve a taste masking function. In other embodiments, the microcapsules may be used where a slow release of the payload material is desired.
A thermally-responsive record material useful for bar coding is taught comprising a support having provided thereon in substantially contiguous relationship a heat sensitive coating comprising at least one chromogenic material, said chromogenic material being selected from a fluoran, and at least one developer of the formula (II) wherein the chromogenic material and developer are of an average particle size equal to or less than 0.7 μm meters, wherein the composition is substantially free of sensitizer or modifier. The record material of the invention remarkably images at high speed, with stable or intense imaging and little or no background discoloration.
B41M 5/28 - Thermography using thermo-chromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat decomposable compounds, e.g. gas liberating
B41M 5/30 - Thermography using chemical colour formers
5.
A FRAGRANCE-DELIVERY COMPOSITION COMPRISING BORON AND PERSULFATE ION-CROSSLINKED POLYVINYL ALCOHOL MICROCAPSULES AND METHOD OF USE THEREOF
An aqueous composition is provided having a pH of from about 2.0 to about 5.7 to about 12.8 and comprising boron or persulfate ion-crossl inked polyvinyl alcohol microcapsules. A method of delivering a fragrance to a substrate is further provided comprising applying to the substrate an aqueous composition comprised of fragrance-containing, boron or persulfate ion-crossl inked, polyvinyl alcohol microcapsules, as well as a method of cleaning a substrate comprising applying to the substrate an aqueous composition comprised of fragrance-containing, boron or persulfate ion-crosslinked, polyvinyl alcohol microcapsules together with at least one cleaning component.
An aqueous composition is provided having a pH of from about 2.0 to about 12.8 and comprising boron or persulfate ion-crosslinked polyvinyl alcohol microcapsules. A method of delivering an agriculture active to a substrate is further provided comprising applying to the substrate an aqueous composition comprised of agriculture active containing, boron or persulfate ion-crosslinked, polyvinyl alcohol microcapsules, as well as a method of treating a substrate to protect from pests or promote crop growth comprising applying to the substrate an aqueous treating composition comprised of agriculture active containing, boron or persulfate ion- crosslinked, polyvinyl alcohol microcapsules.
The present application relates to encapsulated benefit agents, compositions comprising such encapsulated benefit agents and processes for making and using compositions comprising such encapsulated benefit agents that do not require or require a reduced amount of scavenger materials. Such encapsulated benefit agents, compositions comprising such encapsulated benefit agents are processed such that no or lower levels of scavenger materials are required.
The present invention relates to a thermal transfer image receiving sheet comprising a substrate sheet having a first surface and second surface; a non-separable transfer layer provided on at least a first surface of the substrate! optionally an intermediate layers is coated between the transfer layer and paper substrate. The intermediate layer and transfer layer can comprise an oil absorptive pigment having an absorbance of at least 90 grams per square meter, and a binder composition comprising a water soluble carboxylalkyl starch or cellulose.
B41M 5/40 - Thermography characterised by the base, intermediate or covering layersHeat, radiation filtering or absorbing means or layersThermography combined with layers or compositions suitable for other methods of image registrationSpecial originals for reproduction by thermography
B41M 5/00 - Duplicating or marking methodsSheet materials for use therein
The invention discloses a population of selected permeability microcapsule particles comprising an oil soluble or dispersible core material and a wall material at least partially surrounding the core material. The microcapsule wall material comprises the reaction product of a first composition in the presence of a second composition comprising an anionic emulsifier. The first composition comprises a reaction product of i) an oil soluble or dispersible amine with ii) a multifunctional acrylate or methacrylate monomer or oligomer, an oil soluble acid and an initiator. The anionic emulsifier comprises a water soluble or water dispersible acrylic acid alkyl acid copolymer, an optional initiator and an alkali or alkali salt. The reaction product of the first composition and second composition can result in the formation of a low permeability microcapsule wall. Optionally, one or both of the first composition initiator or water phase initiator is an energy-activated initiator, such as a UV initiator. The reaction can proceed by exposing the respective compositions to actinic radiation. Microcapsules of selected permeability can be produced by the process of the invention.
The present invention teaches a cationically charged or neutral microcapsule particle comprising an oil soluble or dispersible core material and a wall material at least partially surrounding the core material, the microcapsule wall material comprising the reaction product of a first composition in the presence of a second composition comprising an emulsifier which is cationic or nonionic, the first composition comprising a reaction product of i) an oil soluble or dispersible amine with ii) a multifunctional acrylate or methacrylate monomer or oligomer, an oil soluble acid and an initiator. The cationic or nonionic emulsifier comprises a water soluble or water dispersible material and optionally a water phase initiator. The first composition initiator and the water phase initiator is an energy-activated initiator. The reaction product of the first composition and second composition results in the formation of a population of microcapsules having a microcapsule wall of low permeance to the core material and having a zeta potential of - 5 millivolts or greater. The resulting microcapsules have adherence to anionic surfaces.
Record material imageable with a laser beam. The material is a substrate such as paper or polyolefin film having provided on at least one surface thereof a coating containing a solvent-soluble or disperse-type dye suitable for coloring plastics or polymers. Typical solvent-soluble and disperse-type dye include monoazo dyes, diazo dyes, anthraquinone dyes, coumarin dyes, quinoline dyes, xanthene dyes, and naphthalimide dyes. The record material does not show visible dye specks in the coating layer on the substrate because the dye has a very small average particle size-less than 50 microns. No more than 1% of the dye particles are larger than 100 microns. Also, method for imaging a substrate using heat energy by applying heat energy to the described record material to bring about a temperature in the coating greater than the melting temperature of the dye, causing color to become visible in the record material.
B41M 5/46 - Thermography characterised by the base, intermediate or covering layersHeat, radiation filtering or absorbing means or layersThermography combined with layers or compositions suitable for other methods of image registrationSpecial originals for reproduction by thermography characterised by the light-to-heat converting meansThermography characterised by the base, intermediate or covering layersHeat, radiation filtering or absorbing means or layersThermography combined with layers or compositions suitable for other methods of image registrationSpecial originals for reproduction by thermography characterised by the heat or radiation filtering or absorbing means or layers
B41M 5/36 - Thermography using a polymeric layer, which may be particulate and which is deformed or structurally changed with modification of its properties, e.g. of its optical, hydrophobic-hydrophilic, solubility or permeability properties
The invention describes a heat sensitive recording material comprising a paper or film substrate having coated thereon a thermally sensitive color forming composition. The thermally sensitive color forming composition comprises a chromogenic dye precursor, and an acidic developer material. A high hydrolysis adhesive material is advantageously employed as a basecoat or in the color forming composition. The high hydrolysis adhesive material has a hydrolysis of at least 99% and yields a heat sensitive recording material of low background discoloration which is useful in wet offset UV cured printing.
B41M 5/46 - Thermography characterised by the base, intermediate or covering layersHeat, radiation filtering or absorbing means or layersThermography combined with layers or compositions suitable for other methods of image registrationSpecial originals for reproduction by thermography characterised by the light-to-heat converting meansThermography characterised by the base, intermediate or covering layersHeat, radiation filtering or absorbing means or layersThermography combined with layers or compositions suitable for other methods of image registrationSpecial originals for reproduction by thermography characterised by the heat or radiation filtering or absorbing means or layers
B41M 5/40 - Thermography characterised by the base, intermediate or covering layersHeat, radiation filtering or absorbing means or layersThermography combined with layers or compositions suitable for other methods of image registrationSpecial originals for reproduction by thermography
The present invention relates to benefit agent containing delivery particles, compositions comprising said particles, and processes for making and using the aforementioned particles and compositions. When employed in compositions, for example, cleaning or fabric care compositions, such particles increase the efficiency of benefit agent delivery, there by allowing reduced amounts of benefit agents to be employed. In addition to allowing the amount of benefit agent to be reduced, such particles allow a broad range of benefit agents to be employed.
Surface insensitive, storage-stable, single-package liquid anaerobic adhesive and sealant compositions which are substantially free of amines, especially aromatic and tertiary amines, and imides, especially sulfimides such as saccharine and saccharine-type compounds.
The invention teaches a novel paper substrate having a transparent field of a dense array of a plurality of laser-formed microperforations. The resultant paper can be useful as a replacement for glassine paper, and can be useful in secure documents. The transparent field is integral to the paper substrate and can be formed by laser techniques surprisingly resulting in a transparent field retaining acceptable strength characteristics after lasing. The transparent field acts as a self authentication device.
The present invention relates to benefit agent containing delivery particles, compositions comprising said particles, and processes for making and using the aforementioned particles and compositions. When employed in compositions, for example, compositions for cleaning, fabric care, or coating onto various substrates, textiles or surfaces, such particles increase the efficiency of benefit agent delivery, thereby allowing reduced amounts of benefit agents to be employed, hi addition to allowing the amount of benefit agent to be reduced, such particles allow a broad range of benefit agents to be employed.
The present invention relates to benefit agent containing delivery particles, compositions comprising said particles, and processes for making and using the aforementioned particles and compositions. When employed in compositions, for example, personal care, cleaning or fabric care compositions, such particles increase the efficiency of benefit agent delivery, there by allowing reduced amounts of benefit agents to be employed. In addition to allowing the amount of benefit agent to be reduced, such particles allow a broad range of benefit agents to be employed.
The present invention relates to benefit agent containing delivery particles, compositions comprising said particles, and processes for making and using the aforementioned particles and compositions. When employed in compositions, for example, cleaning or fabric care compositions, such particles increase the efficiency of benefit agent delivery, there by allowing reduced amounts of benefit agents to be employed. In addition to allowing the amount of benefit agent to be reduced, such particles allow a broad range of benefit agents to be employed.
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