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 |
| 8053511 | Process for preparing polymer dispersions, the resulting dispersions and their use A description is given of a process of emulsion polymerization of free-radically polymerizable ethylenically unsaturated monomers selected from the group of the monoesters or diesters of ethylenically unsaturated monocarboxylic or dicarboxylic acids with alkanols, v... | 11/08/2011 |
| 7700685 | Method of producing hydrous ethylene-vinyl alcohol copolymer composition An ethylene-vinyl alcohol copolymer (EVOH) solution is introduced into a tower vessel (1) from a first inlet (2) provided at an upper portion of the tower vessel (1). Water vapor is introduced into the tower vessel (1) from a second inlet... | 04/20/2010 |
| 7612140 | Toner, method for producing the same, image formation method and image formation apparatus There is provided a toner having favourable development characteristics and favourable stability and a method for production thereof. The toner comprises at least a graft copolymer and a coloring material, wherein the graft copolymer is formed by graft polymerizatio... | 11/03/2009 |
| 7608661 | Water-soluble film from copolymers of vinyl alcohol and itaconic acid, and paper coating articles therefrom The present invention is a composition useful for coating the surface of paper wherein the coating composition is an aqueous solution comprising less than 40 wt % water and consisting essentially of a polyvinyl alcohol copolymer that is at least about 95 % hydrolyze... | 10/27/2009 |
| 7608660 | Method of coating paper with copolymers of vinyl alcohol and itaconic acid The present invention is a composition useful for coating the surface of paper wherein the coating composition is an aqueous solution comprising less than 40 wt % water and consisting essentially of a polyvinyl alcohol copolymer that is at least about 95% hydrolyzed... | 10/27/2009 |
| 7608662 | Copolymers of vinyl alcohol and itaconic acid for use in paper coatings The present invention is a composition useful for coating the surface of paper wherein the coating composition is an aqueous solution comprising less than 40 wt % water and consisting essentially of a polyvinyl alcohol copolymer that is at least about 95% hydrolyzed... | 10/27/2009 |
| 7511093 | Polyvinyl alcohol polymer film and polarization film A polyvinyl alcohol polymer film includes a polyvinyl alcohol polymer and a plasticizer selected from the group consisting of ethylene glycol, glycerin, propylene glycol, diethylene glycol, diglycerin, triethylene glycol, tetraethylene glycol, and trimethylolpropane... | 03/31/2009 |
| 7377975 | Pigment for use in inkjet recording medium coatings and methods Pigment suitable for use in coating compositions for inkjet recording media. Surfaces of an inorganic particulate are interacted with a water-soluble polyvalent metal salt in an aqueous medium. The treated particle surfaces have a significant cationic surface charge... | 05/27/2008 |
| 7371796 | Copolymers of vinyl alcohol and itaconic acid for use in paper coatings The present invention is a composition useful for coating the surface of paper wherein the coating composition is an aqueous solution comprising less than 40 wt % water and consisting essentially of a polyvinyl alcohol copolymer that is at least about 95% hydrolyzed... | 05/13/2008 |
| 7358304 | High-molecular, crosslinked polyvinyl butyrals, method for the production and use thereof The invention relates to high-molecular, crosslinked polyvinyl butyrals, obtainable by (self-) crosslinking polyvinyl butyrals that contain coacetalated, acid-functionalized aldehydes. The invention also relates to a method for producing the same and to the use ther... | 04/15/2008 |
| 7358297 | Preparation of multimodal polymer dispersions using polymeric stabilizer, and use thereof A description is given of a process for preparing bimodal or multimodal polymers from olefinically unsaturated monomers in an aqueous medium. The process features the introduction as initial charge of selected mixtures of polymeric stabilizers and of at least... | 04/15/2008 |
| 7332565 | Method for the reduction of the residual monomer content in aqueous polymer dispersions A method for reducing the amount of residual monomer in aqueous polymer dispersions by aftertreatment with an initiator system comprises aftertreating the aqueous polymer dispersion with addition of an initiator system essentially comprising ... | 02/19/2008 |
| 7329695 | Ink formulations and uses thereof The present invention provides a chemical ink for pad printing a medical device comprising water; a colorant; and a crosslinkable, water-soluble poly(vinyl alcohol). The ink has a viscosity of greater than 50 centipoise, and good adhesion to the medical device. Meth... | 02/12/2008 |
| 7323503 | Process for producing ethylene-vinyl alcohol copolymer resin, process for producing pellets and resin pellets A process for producing an ethylene-vinyl alcohol copolymer resin, including feeding EVOH into an extruder, keeping the temperature of the melting resin in the extruder at 70 to 170° C., adjusting the amount of water in the extruder so that the water content right ... | 01/29/2008 |
| 7319118 | Food-coating composition, process for preparation thereof and use The present invention relates to the use of aqueous copolymer poly(vinyl ester) dispersions which comprise cellulose ethers in an amount up to a maximum of 0.45% by weight in food-coating compositions, and also food-coating compositions which comprise these aqueous ... | 01/15/2008 |
| 7291668 | Composition containing polymer having ionic functional group, ink composition, and image-forming method and image-forming apparatus employing the ink composition The present invention provides an ink composition containing a pigment dispersed uniformly in a solvent and a block polymer having an ionic functional group, an image-forming method and an image-forming apparatus employing the ink composition. The composition... | 11/06/2007 |
| 7285594 | Process for the aqueous plasticization of polyvinyl acetal resins An improved aqueous slurry composition for the plasticizing of polyvinyl acetal resins whereby salts, acids and/or bases are used to enhance absorption rates of the plasticizer into the resin, and a process therewith for the production of plasticized polyvinyl aceta... | 10/23/2007 |
| 7276184 | Surfactant assisted nanomaterial generation process A process for the preparation of nanoscale particulate material is described comprising: (i) combining one or more functional material to be precipitated as nanoscale particles and one or more surface active material in a compressed CO2 phase with a densi... | 10/02/2007 |
| 7208537 | Self-priming chromate free corrosion resistant coating composition and method A self-priming rapid curing chromate free corrosion resistant coating composition based on a random polyvinyl terpolymer and an alkyd resin with a hydroxyl number between 80–200 in association with a mineral acid catalyst, at least one organic solvent and a drying... | 04/24/2007 |
| 7205353 | Self-priming coil coating composition and method The invention discloses self-priming coating composition based on a vinyl terpolymer, a monomeric or oligomeric alkoxy amino resin cross linker and a multi component combination of two or more resins selected from (a) oligomeric saturated polyester resin, (b) oligom... | 04/17/2007 |
| 7198854 | Silicone composition useful especially for the production of anti-friction varnish, process for the application of said varnish to a substrate, and treated substrate A silicone composition useful especially for the production of varnishes applicable to substrates whose coefficient of friction it is sought to reduce. The object is to provide an anti-friction silicone varnish for textiles coated with silicone elastomers which is e... | 04/03/2007 |
| 7186775 | Method for improved the handling heat-resistance of the ethylene-vinyl alcohol copolymer The present invention relates to a method for increasing the heat-resistant of ethylene-vinyl alcohol copolymer (EVOH), the method is characterized by using a mixture of acetic acid, magnesium dihydrogen phosphate, and potassium dihydrogen phosphate at a certain rat... | 03/06/2007 |
| 7183344 | Polyvinyl alcohol film and polarizing film The invention is a film of a vinyl alcohol polymer that contains from 0.01 to 20 mol % of cationic group-containing units and contains from 0.5 to 24 mol % of α-olefin units having at most 4 carbon atoms. The polyvinyl alcohol film gives polarizing films and polari... | 02/27/2007 |
| 7179862 | Powdery, cross-linked absorbent polymers method for the production thereof and their use The invention relates to crosslinked polymerizates which are capable of absorbing, which are based on partially neutralized, monoethylenically unsaturated monomers that carry acidic groups, which exhibit improved properties, in particular, with regard to their abili... | 02/20/2007 |
| 7172651 | Pigment for use in inkjet recording medium coatings and methods Pigment suitable for use in coating compositions for inkjet recording media. Surfaces of an inorganic particulate are interacted with a water-soluble polyvalent metal salt in an aqueous medium. The treated particle surfaces have a significant cationic surface charge... | 02/06/2007 |
| 7157147 | Gas-barrier film and gas-barrier coating agent, and method for production thereof Provided are a gas-barrier film which is a laminate comprising a substrate layer comprising a thermoplastic resin film and a gas-barrier layer comprising a hydrolysate of a silicon alkoxide, a stratified silicate and a polyvinyl alcohol base resin, wherein a radius ... | 01/02/2007 |
| 7147889 | Organic photochromic compositions of improved kinetic performance Described are imbibition compositions that incorporate kinetic enhancing additive(s) into photochromic polymeric host material. Kinetic enhancing additives include organic polyol(s), epoxy-containing compound(s) or a mixture thereof that improves the performance of ... | 12/12/2006 |
| 7138187 | Polyvinyl alcohol-based film exhibiting improved adhesion Modifications to the surface of polyvinyl alcohol-based films are disclosed that result in improved adhesion to optical materials. Specifically, the surface chemistry of the polyvinyl alcohol-based film is altered to include fluorine bonds, which surprisingly improv... | 11/21/2006 |
| 7125914 | Heat-cured furan binder system This invention relates to a heat-cured furan foundry binder system comprising a furan binder and a furan monomer or oligomer containing at least two terminal hydroxymethyl groups. The binders are particularly useful as warm-box binders, because they cure faster and ... | 10/24/2006 |
| 7112630 | Water-soluble, antimicrobial active polymer and ink composition comprising the same A water-soluble, antimicrobial active polymer and an ink composition are prepared by coupling an antimicrobial active compound to a branch of polyvinylalcohol. An excellent antimicrobial effect is provided without affecting the properties of the ink composition that... | 09/26/2006 |
| 7078462 | Cleaning product An automatic laundry or dishwashing product in unit dose form comprising at least three distinct zones for delivering into at least three different stages in the washing cycle. The product provides improved cleaning, care and finishing benefits. ... | 07/18/2006 |
| 7074469 | Composite compositions with barrier properties and methods for the preparation thereof Compositions including a fabric layer with a water-insoluble polymer impregnated into the fabric layer to provide sheets are described. In particular, the sheet composites have a permeability to oxygen in the direction perpendicular to the sheet that is less than on... | 07/11/2006 |
| 7071327 | Polysaccharide-based superabsorbent film A superabsorbent polysaccharide can be obtained by crosslinking a polysaccharide or derivative thereof with at least 1% by weight of a flexible spacer having a chain length of at least 9 chain atoms and having terminal activated coupling groups. The flexible spacer ... | 07/04/2006 |
| 7070731 | Dispersion stabilizer for suspension polymerization of vinyl compound and method of producing the same The present invention provides a new dispersion stabilizer that satisfies, at a high level, the performances required for a dispersion stabilizer used for suspension polymerization. A method of producing a dispersion stabilizer that is useable for suspension polymer... | 07/04/2006 |
| 7072248 | Rapidly low temperature curable high gas barrier coating Disclosed herein is a barrier coating that shows decreased moisture sensitivity compared to conventional coatings, and provides high barrier properties, as well as a rapid method for producing the coating. These improvements are generated through use of a boric acid... | 07/04/2006 |
| 7067575 | Water-soluble film of polyvinyl alcohol A water-soluble film made from a resin composition comprising (A) 100 parts by weight of an anionic group-modified polyvinyl alcohol having a viscosity of 10 to 35 mPa·s measured at 20° C. with respect to a 4% by weight aqueous solution thereof, an average degree ... | 06/27/2006 |
| 7049360 | Water-soluble or water-dispersible (co) polymers of hydroxyalkyl (meth) acrylates, a process for their preparation, and their use as coating agent, binder and/or film-forming excipient pharmaceutical dosage forms The present invention relates to water-soluble or water-dispersible copolymers obtainable by free-radical polymerization of a) 80 to 20% by weight of hydroxy-C1–C6-alkyl (meth)acrylate and, where appropriate... | 05/23/2006 |
| 7037350 | Composition for chemical-mechanical polishing and method of using same A composition for chemical-mechanical polishing, comprising an aqueous solution and an abrasive that comprises polymer particles, is described. The polymer particles carry an electrical charge, such that nearby particles repel one another. Accordingly, aggregation o... | 05/02/2006 |
| 7019054 | Formulation for achievement of oil and grease resistance and release paper properties A formulation, and a process for making same, is disclosed which is useful as a coating or treatment for imparting oil and grease resistance to an underlying substrate. The formulation does not contain any fluorochemicals. At the same time, however, the formulation ... | 03/28/2006 |
| 7014909 | Control of volatile carbonyl compound in compositions used in printing, printing methods and resulting printed structure Volatile organic compounds containing carbonyl groups can be released by lithographic printing materials including inks, fountain solutions and printed materials. Volatile organic compounds containing carbonyl groups can also have a serious negative impact on the ta... | 03/21/2006 |