Patent application number | Description | Published |
20080233368 | ARTICLES HAVING ENHANCED REVERSIBLE THERMAL PROPERTIES AND ENHANCED MOISTURE WICKING PROPERTIES TO CONTROL HOT FLASHES - A coated article for providing a phased response to rapid temperature changes, comprises a substrate and a coating disposed on a portion of the substrate. The coating comprises a polymeric material, a first temperature regulating material having a transition temperature between 22° C. and 50° C. and disposed within a first plurality of microcapsules, and a second temperature regulating material having a transition temperature between 25° C. and 45° C. and disposed within a second plurality of microcapsules. The first temperature regulating material and the second temperature regulating material are dispersed in the polymeric material. The coating includes a plurality of regions of discontinuity formed by the coating that create exposed portions of the substrate to provide improved flexibility and air permeability to the coated article and wherein the coating provides a buffered response to rapid temperature changes. | 09-25-2008 |
20090035557 | Microcapsules and Other Containment Structures for Articles Incorporating Functional Polymeric Phase Change Materials - An article comprises a substrate, a first functional polymeric phase change material, and a plurality of containment structures that contain the first functional polymeric phase change material. The article may further comprise a second phase change material chemically bound to at least one of the plurality of containment structures or the substrate. In certain embodiments, the article further comprises a second phase change material and a binder that contains at least one of the first polymeric phase change material and the second phase change material. The containment structure may b a microcapsule or a particulate confinement material. | 02-05-2009 |
20090278074 | Stable Suspensions Containing Microcapsules and Methods for Preparation Thereof - A stable suspension for the production of a temperature-regulating, polymer-containing material or fabric, comprises a solvent and a plurality of microcapsules containing at least one phase-change material. The microcapsules are incorporated in the polymer-containing material, and the stable suspension is characterized in that the solvent is capable of dissolving a fabric-forming component selected from the group consisting of at least one of the polymer and precursors thereof and the suspension is stable for at least about 20 hours. A method for manufacturing a suspension comprising a solvent and a plurality of microcapsules containing at least one phase-change material comprises providing microcapsules containing a phase-change material, providing a solvent capable of dissolving a fabric-forming component selected from the group consisting of at least one of the polymer and precursors thereof, and mixing the solvent and the microcapsules to form the suspension. | 11-12-2009 |
20100012883 | Functional Polymeric Phase Change Materials - A composition comprising a functional polymeric phase change material, the functional polymeric phase change material carrying at least one reactive function, wherein the reactive function is capable of forming at least a first electrovalent bond. In certain embodiments, the reactive function is capable of forming at least a first electrovalent bond with a second material. In other embodiments, the functional polymeric phase change material comprises at least one crystallizable section and may also comprise a backbone chain and a plurality of side chains, wherein the plurality of side chains form the crystallizable section. | 01-21-2010 |
20100015430 | Heat Regulating Article With Moisture Enhanced Temperature Control - An article having reversible thermal regulation properties comprises a substrate and a functional polymeric phase change material having a heat carrying capacity. The article is further characterized by a chemical function having moisture adsorbing properties that increase the heat carrying capacity. | 01-21-2010 |
20100015869 | Articles Containing Functional Polymeric Phase Change Materials and Methods of Manufacturing the Same - An article comprises a substrate and a functional polymeric phase change material bound to the substrate. In some aspects the functional polymeric phase change material is chemically bound to the substrate and can be accomplished by at least one of covalent bonding or electrovalent bonding. The functional polymeric phase change material can comprise a reactive function selected from the group consisting of an acid anhydride group, an alkenyl group, an alkynyl group, an alkyl group, an aldehyde group, an amide group, an amino group and their salts, a N-substituted amino group, an aziridine, an aryl group, a carbonyl group, a carboxy group and their salts, an epoxy group, an ester group, an ether group, a glycidyl group, a halo group, a hydride group, a hydroxy group, an isocyanate group, a thiol group, a disulfide group, a silyl or silane group, an urea group, and an urethane group, and wherein the substrate comprises at least one of cellulose, wool, fur, leather, polyester and nylon. Methods of producing the articles are also disclosed. | 01-21-2010 |
20100016513 | Functional Polymeric Phase Change Materials and Methods of Manufacturing the Same - A composition comprising a functional polymeric phase change material, the functional polymeric phase change material carrying at least one reactive function, wherein the reactive function is capable of forming at least a first covalent bond. In certain embodiments, the reactive function is capable of forming at least a first covalent bond with a second material. In other embodiments, the functional polymeric phase change material comprises at least one crystallizable section and may also comprise a backbone chain and a plurality of side chains, wherein the plurality of side chains form the crystallizable section. | 01-21-2010 |
20100264353 | THERMAL REGULATING BUILDING MATERIALS AND OTHER CONSTRUCTION COMPONENTS CONTAINING POLYMERIC PHASE CHANGE MATERIALS - In accordance with one aspect, a thermally regulating construction material comprises a base material and a polymeric phase change material bound to the base material, wherein the base material provides reversible temperature regulation properties to the building construction material. In accordance with another aspect, an insulation material for use in building construction comprises a base material and a polymeric phase change material bound to the base material, wherein the base material provides reversible temperature regulation properties to the insulation material. The base material may be selected from the group consisting of foam insulation, loose fill insulation, and batted insulation. | 10-21-2010 |
20110117353 | FIBERS AND ARTICLES HAVING COMBINED FIRE RESISTANCE AND ENHANCED REVERSIBLE THERMAL PROPERTIES - A fabric, fiber or article comprising a plurality of fiber bodies, the plurality of fiber bodies including a first fiber material and a second fiber material, wherein the first fiber material comprises a cellulosic material and a phase change material dispersed in the cellulosic material, the phase change material forming a plurality of domains dispersed in the cellulosic material, the phase change material having a latent heat of at least 5 Joules per gram and a transition temperature in the range of 0° C. to 100° C., the phase change material providing thermal regulation based on at least one of absorption and release of the latent heat at the transition temperature. Wherein the second fiber material comprises a fire resistant material. | 05-19-2011 |
20120225290 | ARTICLES CONTAINING PRECISELY BRANCHED FUNCTIONAL POLYMERIC PHASE CHANGE MATERIALS - In accordance with one aspect a temperature regulating article comprises a substrate and a polymeric phase change material bound to the substrate, wherein the polymeric phase change material is characterized by including a precisely branched polymer with substantially equally spaced repeating sidechains. In other embodiments the polymeric phase change material includes between 20 and 200 branches per 1000 carbon units, has a latent heat of at least 5 Joules per gram, and a transition temperature between 0° C. and 40° C. | 09-06-2012 |
20130040526 | THERMAL REGULATING BUILDING MATERIALS AND OTHER CONSTRUCTION COMPONENTS CONTAINING PHASE CHANGE MATERIALS - A material for energy management and peak energy reduction in a building structure, comprises an insulative base material, a first phase change material, and a functional polymeric phase change material that dynamically absorbs and releases heat to adjust heat transfer. The functional polymeric phase change material has at least one phase change temperature in the range between −10° C. and 100° C. and a phase change enthalpy of at least 5 Joules per gram, the functional polymeric phase change material including a plurality of polymer chains that include a backbone chain and a plurality of side chains, wherein a first portion of the plurality of polymer chains are crosslinked to each other, wherein a second portion of the plurality of polymer chains are crosslinked with the first phase change material and a third portion of the plurality of side chains are mechanically entangled with the inorganic insulative base material. | 02-14-2013 |
20140043754 | SYSTEMS, STRUCTURES AND MATERIALS FOR ELECTRONIC DEVICE COOLING - An electronic device having one or more components that generate heat during operation includes a structure for temperature management and heat dissipation. The structure for temperature management and heat dissipation comprises a heat transfer substrate having a surface that is in thermal communication with the ambient environment and a temperature management material in physical contact with at least a portion of the one or more components of the electronic device and at least a portion of the heat transfer substrate. The temperature management material comprises a polymeric phase change material having a latent heat of at least 5 Joules per gram and a transition temperature between 0° C. and 100° C., and a thermal conductive filler. | 02-13-2014 |
20140073210 | Coated Articles with Microcapsules and Other Containment Structures Incorporating Functional Polymeric Phase Change Materials - An article comprises a substrate, a first functional polymeric phase change material, and a plurality of containment structures that contain the first functional polymeric phase change material. The article may further comprise a second phase change material chemically bound to at least one of the plurality of containment structures or the substrate. In certain embodiments, the article further comprises a second phase change material and a binder that contains at least one of the first polymeric phase change material and the second phase change material. The containment structure may be a microcapsule or a particulate confinement material | 03-13-2014 |
20140221575 | ARTICLES CONTAINING PRECISELY BRANCHED FUNCTIONAL POLYMERIC PHASE CHANGE MATERIALS - In accordance with one aspect a temperature regulating article comprises a substrate and a polymeric phase change material bound to the substrate, wherein the polymeric phase change material is characterized by including a precisely branched polymer with substantially equally spaced repeating sidechains. In other embodiments the polymeric phase change material includes between 20 and 200 branches per 1000 carbon units, has a latent heat of at least 5 Joules per gram, and a transition temperature between 0° C. and 40° C. | 08-07-2014 |
20150018480 | Polymeric composites having enhanced reversible thermal properties and methods of forming thereof - Polymeric composites and methods of manufacturing polymeric composites are described. In one embodiment, a set of microcapsules containing a phase change material are mixed with a dispersing polymeric material to form a first blend. The dispersing polymeric material has a latent heat of at least 40 J/g and a transition temperature in the range of 0° C. to 50° C. The first blend is processed to form a polymeric composite. The polymeric composite can be formed in a variety of shapes, such as pellets, fibers, flakes, sheets, films, rods, and so forth. The polymeric composite can be used as is or incorporated in various articles where a thermal regulating property is desired. | 01-15-2015 |