William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 7368483 | Porous composition of matter, and method of making same A low-k organic dielectric material having stable nano-sized porous is provided as well as a method of fabricating the same. The porous low-k organic dielectric material is made from a composition of matter having a vitrification temperature (Tv-comp) which includes... | 05/06/2008 |
| 7323273 | Shutdown separators with improved properties A microporous polyolefin battery separator membrane is extremely high in porosity, high in puncture strength, very low in shrinkage and with shutdown temperature of 130-140 degrees C. and melt integrity greater than 165 degrees C. It is made of UHMWPE having a weigh... | 01/29/2008 |
| 7323274 | Shutdown separators with improved properties A microporous polyolefin battery separator membrane is extremely high in porosity, high in puncture strength, very low in shrinkage and with shutdown temperature of 130-140 degrees C. and melt integrity greater than 165 degrees C. It is made of UHMWPE having a weigh... | 01/29/2008 |
| 7118694 | Compositions containing silicates and ion-conducting films containing the same A mixture Ia which comprises a composition IIa consisting of a) 1 to 95% by weight of a solid III, preferably a basic solid III, having a primary particle size of 5 nm to 20 microns, and b) 5 to 99% by weight of a polymeric mass IV obtainab... | 10/10/2006 |
| 6949315 | Shutdown separators with improved properties A microporous polyolefin battery separator membrane is extremely high in porosity, high in puncture strength, very low in shrinkage and with shutdown temperature of 130–140 degrees C. and melt integrity greater than 165 degrees C. It is made of UHMWPE having a wei... | 09/27/2005 |
| 6909028 | Stable breathable elastic garments A thermally stable microporous breathable film is provided comprising at least 35% filler, by weight of the filled-film, and a thermoplastic polymer blend of a first polyethylene polymer and a second polyethylene polymer. The first polyethylene polymer comprises 30%... | 06/21/2005 |
| 6812263 | Polyvinyl chloride-based elements for floor cleaning units Formulations of polyvinyl chloride blended with nitrile rubber are provided. These formulations have been found to be useful in floor cleaning units, and provide a cost savings benefit, while meeting the physical and chemical property demands for the floor cleaning ... | 11/02/2004 |
| 6762212 | Extruded styrene resin foams and methods for producing the same An extruded styrene resin foam obtained by extrusion-foaming of a styrene resin and excellent in environmental compatibility and excellent in flame retardant property and thermal insulating property, characterized in that it contains, as a blowing agent, 100 to 10% ... | 07/13/2004 |
| 6602924 | Foamed gypsum compositions A foamed gypsum composition is provided. The composition may be used in making a crosslinked, foamed gypsum product. The composition is comprised of gypsum, foaming agents, epoxy resin, and a hardener. Optional ingredients would include one or more additi... | 08/05/2003 |
| 6569912 | Extruded styrene resin foam and process for producing the same An extruded styrene resin foam obtained by extrusion-foaming of a styrene resin and excellent in environmental compatibility and excellent in flame retardant property and thermal insulating property, characterized in that it contains, as a blowing agent, ... | 05/27/2003 |
| 6469078 | Molecular weight increase and modification of polycondensates This invention relates to a process for increasing the molecular weight and/or for the modification of polycondensates during the processing in the melt, which comprises adding to the polycondensate a blend comprising a) at least one polyfunctional anhydride (... | 10/22/2002 |
| 6451348 | Method of manufacturing porous matrix-type controlled release systems using emulsion technique A method of manufacturing a porous matrix-type drug delivery system is provided. It comprises the steps of: dispersing, stirring, and emulsifying an aqueous solution of a drug in an organic solvent having a polymer compound and a surface active agent solv... | 09/17/2002 |
| 6323269 | Mineral containing thermoplastic granules A mineral containing thermoplastic granule for incorporation in a thermoplastic material to produce a thermoplastic end product, the granule comprising at least 50% by weight of an inorganic particulate material, at least 0.1% by weight of an additive com... | 11/27/2001 |
| 6278021 | Reduced particle-size urea A process for producing an urea preparation of reduced particle-size and narrow particle-size distribution by using an air milling process is provided. Also provided is an urea preparation of reduced particle-size, narrow particle-size distribution, and h... | 08/21/2001 |
| 6228897 | Continuous processing of powder coating compositions Systems, apparatus combinations and methods for producing a powder coating are provided wherein a stream of a powder coating precursor including at least one resin and at least one additional powder coating ingredient is contacted with a process fluid eff... | 05/08/2001 |
| 6214260 | Conductive elastomeric foams by in-situ vapor phase polymerization of pyrroles A conductive elastomeric foam composite is presented, comprising an elastomer foam and polypyrrole, thiophene, or aniline and derivatives thereof. The foam is manufactured by first diffusing an oxidant into the dense polymer phase of a solvent-swollen foa... | 04/10/2001 |
| 6184262 | Benzotriazole stabilizers for polyols and polyurethane foam Polyether and polyester poloyols and polyurethane foams are stabilized by including therein stabilizers selected from (1) diphenylaminomethylbenzotriazole substituted by alkyl or phenylalkyl groups or (2) synergistic compositions consisting of (a) benzotr... | 02/06/2001 |
| 6172127 | Preparation of polyimide foam The invention herein relates to a process of preparing a novel polyimide foam having superior heat-resistance, flame retardancy, homogeneous size and distribution of cells, and low density, wherein a polyimide precursor in a granular form is prepared by m... | 01/09/2001 |
| 6169123 | Non-adherent nasal, sinus and otic packing and method for processing sponge materials in fabrication of packings Nasal, sinus and otic packings exhibiting a less adherent surface when in contact with tissue and being less traumatic on removal are prepared. In a first embodiment, polyvinyl acetal foamed packing material undergoes a surface modification imparting a no... | 01/02/2001 |
| 6162838 | Porous insulating compounds and method for making same A method of forming a porous insulating composition comprising the steps of (A) providing at least one organic sacrificial material/dielectric material composition comprising at least one organic sacrificial material and at least one dielectric material; ... | 12/19/2000 |
| 6156235 | Conductive elastomeric foams by in-situ vapor phase polymerization of pyrroles A conductive elastomeric foam composite is presented, comprising an elastomer foam and polypyrrole, thiophene, or aniline and derivatives thereof. The foam is manufactured by first diffusing an oxidant into the dense polymer phase of a solvent-swollen foa... | 12/05/2000 |
| 6146892 | Fibrillar matrices Methods and compositions are described that provide three-dimensional fibrillar matrices useful as, among other things, structural prosthetics and scaffolds for cells. The porous fibrillar matrices of the present invention have desirable mechanical proper... | 11/14/2000 |
| 6140379 | Chemically embossed metallocene polyethylene foam A textured metallocene polyethylene foam sheet suitable for use in a floor covering is made using a highly co-activated azodicarbonamide package which blows the metallocene polyethylene effectively. The preferred co-activators are zinc oxide and urea. The... | 10/31/2000 |
| 6124368 | Method for producing polytetrahydrofuran The invention relates to a method for producing polytetrahydrofuran, polytetrahydrofuran copolymers, diesters or monoesters of these polymers by polymerization of tetrahydrofuran in the presence of at least one telogene and/or comonomer on a sulfate-conta... | 09/26/2000 |
| 6074695 | Composition and process for forming electrically insulating thin films To provide a composition for the formation of insulating films that can form an insulating film having a low dielectric constant. The composition comprises (A) an electrically insulating curable resin selected from the group consisting of electrically ins... | 06/13/2000 |
| 6031012 | Curable composition, foam produced therefrom, and process for producing the foam Provided is a curable composition comprising (A) a phenolic compound having a carbon-carbon double bond, (B) a compound having an SiH group, and (C) a foaming agent. The composition can be foamed and cured at room temperature or under heat at relatively l... | 02/29/2000 |
| 6013689 | Method for making a closed-cell phenolic resin foam, foamable composition, and closed-cell phenolic resin foam Provided is a foamable, phenolic resin composition adapted to form a closed-cell phenolic resin foam under substantially atmospheric pressure. The foamable, phenolic resin composition is formulated from a resol resin, a blowing agent, and a bond strength ... | 01/11/2000 |
| 5929128 | Gaskets made from olefin polymers Gaskets comprising either at least one homogeneously branched ethylene polymer or at least one elastic substantially linear ethylene polymer, at least one ethylene/carboxylic acid interpolymer; and at least one slip agent are disclosed. These gaskets may ... | 07/27/1999 |
| 5852064 | Foamed and cross-linked phenolic resin and method for making same A phenolic foam having exceptional absorption capacities for pollutants such as hydrocarbons and other substances is described. The foam is hydrophobic and is capable of absorbing such substances in amounts up to 72 times its own weight. It is the reactio... | 12/22/1998 |
| 5847035 | Substituteed tetrahydropyrimidine derivatives and their use as polymerization inhibitors for vinyl aromatic compounds The present invention is directed to substituted tetrahydropyrimidine derivatives of the general formula ##STR1## wherein R1, R2, R3, R4, R5, R6 and R7, which may be the sam... | 12/08/1998 |
| 5744507 | Foamable organosiloxane compositions curable to silicone foams having improved adhesion A foamable, curable organosiloxane composition comprising an alkenyl-functional polyorganosiloxane, an organohydrogensiloxane, a blowing agent, a platinum catalyst and an adhesion promoter comprising an epoxy-functional compound, a hydroxyl-functional com... | 04/28/1998 |
| 5741825 | Thermal insulating foamed material and method for manfacturing the same A polyurethane foam is constituted by using a blowing agent selected from the group consisting of iodofluorohydrocarbons, perfluoroalkenes and hydrogen-containing fluoromorpholine derivatives. These blowing agents have a low thermal conductivity and a sho... | 04/21/1998 |
| 5683527 | Foamable organosiloxane compositions curable to silicone foams having improved adhesion A foamable, curable organosiloxane composition comprising an alkenyl-functional polyorganosiloxane, an organohydrogensiloxane, a blowing agent, a platinum catalyst and an adhesion promoter comprising an epoxy-functional compound, a hydroxyl-functional com... | 11/04/1997 |
| 5670551 | Crosslinked foamed body and a process for its production A crosslinked foamed body obtained by subjecting a rubber compounded product comprising (A) a chlorinated ethylene/-olefin copolymer rubber, (B) a triazinethiol as a vulcanization agent, (C) an alkyl ammonium halide as a vulcanization promotor, and... | 09/23/1997 |
| 5543449 | Stabilized flexible PVC A high degree of stabilization of flexible PVC is achieved by using a perchlorate and a terminal epoxide compound.... | 08/06/1996 |
| 5539006 | Rigid foams with improved insulation and physical properties Rigid polyurethane foams are produced by reacting an organic polyisocyanate with a sucrose-based polyether polyol in the presence of a catalyst and a blowing agent selected from hydrogen-containing chlorofluorocarbons, hydrogen-containing fluorocarbons, h... | 07/23/1996 |
| 5527876 | Process for the production of plastics containing amide groups The invention relates to a process for the production of plastics containing amide groups with elimination of CO2 by reaction of polyfunctional isocyanates, carboxylic acids and, optionally, alcohols in the presence of tertiary amines, more par... | 06/18/1996 |
| 5462975 | Rubber compositions for sponge rubber A rubber composition for sponge rubber which contains following components (A)~(E) and satisfies the following requirements that the ratio by weight of (A)/(B) is 30/70~99/1 and the amount of component (C) is 50~400 parts by weight per 100 parts by weight... | 10/31/1995 |
| 5422415 | Polyether polyol and polyurethane compositions protected against oxidation and core scorching Described are compositions protected against thermal and oxidative degradation that comprise A) a polyether polyol or mixtures of such polyols, B) at least one benzofuranone derivative of formula I, ##STR1## wherein L, G, m, R1 to R5 | 06/06/1995 |
| 5386838 | High surface area iron-magnesium smoke suppressive compositions A high surface area oxidative catalyst smoke suppressive composition, smoke suppressive articles, and method of making such compositions and articles are disclosed. The smoke suppressive composition is a solid solution comprising a mixture of iron (Fe) an... | 02/07/1995 |