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 |
| 7323119 | Color stabilization of hydroquinone hydroxyethyl ether products The present invention relates to the color stabilization of hydroquinone hydroxyethyl ethers by phosphite compounds containing the bis-cyclic structure of spiro phosphites, both rings being attached to the same tertiary carbon atom in the phosphite molecule. ... | 01/29/2008 |
| 7235252 | Method of preparing organic peroxyacids A system for a fast-rate preparation just before use of organic peroxyacids, in a hydroalcoholic environment, by mixing at temperatures lower than 40° C., preferably lower than 25° C., a first reactant and a second reactant, kept separate from each other during st... | 06/26/2007 |
| 7235187 | Methods and apparatuses for delivering a volatile component via a controlled exothermic reaction Reaction mixtures that include exothermic generating particles having a water soluble coating encasing a portion of the particles, a volatile component and, optionally an aqueous solution, and a buffer. The reaction mixtures are especially suited to generate heat in... | 06/26/2007 |
| 7229505 | Methods and compositions for surfactant-free cleaning The present invention comprises methods and compositions for affecting indoor air quality, such as by reducing particulates in indoor air and providing allergen control comprising using surfactant-free cleaning compositions to remove particulate matter such as soils... | 06/12/2007 |
| 7226964 | Composition comprising a nitroxide, a promoter and optionally a free-radical initiator The present invention relates to the prevention of scorching before crosslinking of a thermoplastic and/or elastomeric composition with peroxides or azo compounds. This is achieved by using a nitroxide in combination with at least one crosslinking promoter (promoter... | 06/05/2007 |
| 7129311 | Additives to prevent degradation of alkyl-hydrogen siloxanes An organohydrosiloxane composition comprising: a) one or more organohydrosiloxane compounds, each having at least one [—HSiR—O—] unit, wherein R═C1–C18 linear, branched, or cyclic alkyl, C1 | 10/31/2006 |
| 7084189 | Phase change inks with isocyanate-derived antioxidants and UV stabilizers Disclosed is a phase change ink composition comprising (a) a colorant and (b) the reaction product of (i) an isocyanate and (ii) an antioxidant or UV stabilizer molecule having thereon (A) at least one isocyanate-reactive hydroxyl group and/or (B) at least one isocy... | 08/01/2006 |
| 7081211 | Multi-layer reaction mixtures and apparatuses for delivering a volatile component via a controlled exothermic reaction Multi-layer reaction mixtures that includes exothermic generating particles having a water soluble coating encasing a portion of the particles, a volatile component and, optionally, a buffer, an aqueous solution or both. At least two layers of the reaction mixture c... | 07/25/2006 |
| 6953535 | Initiator system for acid dental formulations The invention relates to a redox initiator system which allows dental formulations to be cured in acidic medium by way of a free-radical polymerization and which ensures a high level of adhesion of the polymerizing composition to the hard substances of the teeth, na... | 10/11/2005 |
| 6855435 | Transparent, UV-stabilized film made from a crystallizable thermoplastic A transparent film whose thickness is in the range from 1 to 500 μm and which comprises, as principal constituent, a crystallizable thermoplastic, wherein the film comprises at least one UV stabilizer as light stabilizer and at least one optical brightener, and to ... | 02/15/2005 |
| 6828364 | Stabilizer mixtures A stabilizer mixture containing (I) two different sterically hindered amine compounds, and (II) at least one compound selected from the group consisting of an organic salt of Zn, an inorganic salt of Zn, Zn oxide, ... | 12/07/2004 |
| 6706209 | Stabilized monomer composition A stabilized monomer composition containing at least one ethylenically unsaturated monomer and a combination of N,N-diethylhydroxylamine an N-nitroso-N-phenylhydroxylamine or its salt in a weight ratio of from 1:1 to 10:1 permits the synthesis of 2-hydroxyalkyl (met... | 03/16/2004 |
| 6660181 | Inhibition of polymerization of unsaturated monomers A method is disclosed for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers a polymerization inhibiting amount of a mixture comprising A) a first inhibitor comprising 4-amino-2,2,6,6-tetramethy... | 12/09/2003 |
| 6555019 | Sulfur free, low color generating scorch time extending compositions for use in compounding and cure of free radical initiator curable polymers Sulfur free, crosslinking, scorch-retarding compositions for compounding and cure of polymers susceptible to cure by free radical initiators are disclosed.... | 04/29/2003 |
| 6537467 | Immobilized free radical captors The present invention relates to free radical captors, especially to radical polymerization inhibitors or retarders which, characteristically, are immobilized on a solid support. The present invention also relates to a method of preparing said immobilized... | 03/25/2003 |
| 6495065 | Nitrosamine-inhibiting compositions for shortstopping of free radical emulsion polymerizations The present invention is a composition for and a method of shortstopping free radical emulsion polymerizations that inhibits the formation of nitrosamines. The composition comprised nitrosamine inhibitors in combination with conventional alkylhydroxylamin... | 12/17/2002 |
| 6342648 | Methods and compositions for inhibiting vinyl aromatic monomer polymerization The present invention provides compositions and methods inhibiting polymerization of vinyl aromatic compounds comprising a bisphenol compound and an oxidized p-phenylenediamine. In a specific, non-limiting embodiment, the polymerization of the vinyl aroma... | 01/29/2002 |
| 6300533 | Inhibition of polymerization of ethylenically unsaturated monomers Disclosed herein is a method for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of an inhibitor having the structural formula: ##STR1## wherein R1 and R4... | 10/09/2001 |
| 6258866 | Blowing agent compatabilization Provided herein are subcombinations from which polyurethane foams and polyurethane foams containing polyisocyanurates may be prepared. The subcombinations are unique in that they contain components which synergistically act towards promoting compatibility... | 07/10/2001 |
| 6242011 | Acidic composition of matter for use to destroy microorganisms A composition of matter and the method of making that provides a low pH acidic composition that is useful for destroying microorganisms that are undesirable and useful for destroying or reducing melanoma on human skin. The composition and method include s... | 06/05/2001 |
| 6204403 | Process for manufacturing acrylamidoalkylalkoxysilanes A method for preparing acrylamidoalkylalkoxysilanes from aminoalkylalkoxysilanes and acrylate esters is described wherein at least two inhibitors and an amidation catalyst are used in an elevated temperature reaction.... | 03/20/2001 |
| 6143205 | Mixtures containing monomers and stabilizers Mixtures contain (A) vinyl-containing monomers, and (B) an effective amount of a mixture inhibiting the premature polymerization of the vinyl-containing monomers during the purification or distillation and containing (i) from 0.05 to 4.5% by weight, based on t... | 11/07/2000 |
| 6103252 | Method for reducing deflagration of azinphos-methyl The present invention relates to a stable azinphos-methyl wettable powder formulation. The composition of the present invention contains an insecticide powder formulation and a magnesium sulfate heptahydrate. The magnesium sulfate heptahydrate is added to... | 08/15/2000 |
| 5993687 | Acrylonitrile solutions of maleimides, method for preparation thereof, and acrylonitrile based copolymers obtained by use of the solutions An acrylonitrile solution of maleimide manifesting transparency, precluding coloration and opacification during the course of handling, and excelling in stability, a method for the preparation of the acrylonitrile solution, and an acrylonitrile based copo... | 11/30/1999 |
| 5989595 | Acidic composition of matter for use to destroy microorganisms A composition of matter and the method of making that provides a low pH acidic composition that is useful for destroying microorganisms that are undesirable and useful for destroying or reducing melanoma on human skin. The composition and method include s... | 11/23/1999 |
| 5882544 | Polycyclic iminooxadiazinediones from (cyclo)aliphatic 1,4-diisocyanates The present invention relates to polycyclic iminooxadiazinediones A corresponding to formula I ##STR1## The present invention also relates to mixtures of these polycyclic iminooxadiazinediones with other isocyanate derivatives and to their use f... | 03/16/1999 |
| 5849214 | Scorch extending curing/crosslinking compositions A crosslinkable composition of a polymeric thermoplastic and/or elastomeric material which is susceptible to scorching when processed at elevated temperatures, prior to crosslinking, in the presence of a free radical initiator, is protected against such s... | 12/15/1998 |
| 5562863 | Methods and compositions for inhibiting vinyl aromatic monomer polymerization Vinyl aromatic monomer polymerization methods utilizing a composition of 2,6-di-tert-butyl-4-methylphenol and a substituted benzoquinonediimide compound are disclosed. Preferably, the composition is employed in an amount of 1 part to 10,000 parts per mill... | 10/08/1996 |
| 5470440 | Method for inhibiting vinyl aromatic monomer polymerization Vinyl aromatic monomer polymerization methods utilizing a composition of 2,6-di-tert-butyl-4-methylphenol and a substituted benzoquinonediimide compound are disclosed. Preferably, the composition is employed in an amount of 1 part to 10,000 parts per mill... | 11/28/1995 |
| 5387619 | Chemical reaction suppression system A process for inhibiting chemical reactions of a fluid functionally reactive organic material by mixing it with supercritical fluid ("SCF") or near supercritical fluid, especially carbon dioxide maintained under supercritical fluid conditions. The process... | 02/07/1995 |
| 5324446 | Method of stabilizing blends of melamine and polyols Disclosed herein are compositions comprising an effective combination of an amine terminated polyether and a urea compound, and melamine/polyol blends containing the same.... | 06/28/1994 |
| 5221461 | Antioxidant compositions and methods using catechol compounds and organic acid compounds A method for inhibiting fouling during the elevated temperature processing of hydrocarbon comprising adding to the hydrocarbon a composition comprising a catechol having the structure: ##STR1## wherein R is H or C1 -C10 alkyl an... | 06/22/1993 |
| 5202051 | Stabilization of epoxy/nitroparaffin solutions A composition is provided comprising an epoxy resin, a nitroparaffin and a sulfonic acid. The presence of the sulfonic acid retards gellation of nitroparaffin-containing epoxy compositions intended for use in water-dispersible coating formulations cured w... | 04/13/1993 |
| 5137655 | High temperature endothermic blowing agents compositions and applications A high temperature endothermic blowing agent which is a mixture of a polycarboxylic acid and an inorganic carbonate, the polycarboxylic acid and inorganic carbonate each having been surface treated with a component which prevents water from being absorbed... | 08/11/1992 |
| 5126072 | Stable, two package water emulsions of silicone hydride fluids An emulsion where water is a continuous phase and having a discontinuous oil phase comprising: (a) silicon hydrides containing units of the formula: Ra Hb SiO.sub.(4-a-b)/2 where a may be 0, 1, or 2; b may be 1 or 2; a+b may be 1, 2, or 3; R ... | 06/30/1992 |
| 5106534 | Endothermic blowing agents compositions and applications A stabilized powdered endothermic blowing agent which is a mixture of a polycarboxylic acid and an inorganic carbonate, the polycarboxylic acid and inorganic carbonate each having been surface treated with a component which prevents water from being absor... | 04/21/1992 |
| 5089165 | Compositions of water-dispersed diprimary amine terminated polymers Novel water-dispersed compositions are prepared containing (1) 100 parts by weight of an amine-containing polymer, (2) at least 25 parts by weight of a solvent which is soluble in both water and organics and has a boiling point above about 100° C., (3) a... | 02/18/1992 |
| 5059649 | Storage stable one-part fluorosilicone gel compositions exhibiting improved thermal stability Concentration levels of copper acetylacetonate previously considered ineffective inhibit or eliminate thermally induced hardening of fluorosilicone gels prepared by a hydrosilylation reaction using one-part curable compositions containing an N,N,N',N'-tet... | 10/22/1991 |
| 5045570 | Endothermic blowing agents for surface migration of components in foamed products, compositions and applications Compositions for producing foamed products which include additives and blowing agents which cause the surface treatment additives to migrate to the surfaces of foamed products. The products produced from the compositions require less additives because the... | 09/03/1991 |
| 5037580 | Endothermic blowing agents for strengthening weld lines in molded thermoplastic resins and products Compositions for producing foamed products which include filler and/or pigment additives and blowing agents which enhance the strength of weld lines which are produced when the compositions are molded. The products produced from the compositions have weld... | 08/06/1991 |