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| Number | Title | Issue Date |
| 7442751 | Method of producing water-soluble nonturbid copolymers of at least one water-soluble N-vinyllactam and at least one hydrophobic comonomer Method of producing vinyllactam copolymers by free-radical polymerization of at least one water-soluble N-vinyllactam and at least one hydrophobic comonomer in an organic solvent in the presence of an initiator under reflux conditions, where N-vinyllactam is added t... | 10/28/2008 |
| 7411104 | Method for producing polybutene A method for producing high reactive polybutene (HRPB), in which carbon-carbon double bond is positioned at an end of polybutene, is disclosed. The high reactive polybutene having 300˜5000 of number average molecular weight (Mn) can be produced from a raw material ... | 08/12/2008 |
| 7402636 | Method and apparatus for decreasing polymer deposition The disclosure provides a slurry polymerization system and method to decrease polymer deposition on reactor surfaces using an oxygenate such as alcohol (16) supplied to the polymerization medium (32) separate from the catalyst feed (34). ... | 07/22/2008 |
| 7329705 | Salt-sensitive binder compositions with N-alkyl acrylamide and fibrous articles incorporating same A salt sensitive polymeric binder for use in fibrous webs, where the binder contains a copolymer of carboxylic acid monomer units, acrylate monomer units, and N-alkyl acrylamide units. The copolymer is neutralized at least to the point where it is water soluble. The... | 02/12/2008 |
| 7329697 | Elastomeric compositions The present invention includes compositions suitable for tire treads or sidewalls and other articles where abrasion resistance and flexibility are desirable. The invention includes a tire tread or sidewall made by combining a filler; a sulfur cure system; optionally... | 02/12/2008 |
| 7300989 | Dispersions containing bicomponent fluoropolymer particles and use thereof The present invention provides a method of preparing an aqueous dispersion of poly(perfluorovinyl ether) homopolymers. The present invention further relates to a method of making an aqueous fluoropolymer dispersion comprising bicomponent particles of poly(perfluorov... | 11/27/2007 |
| 7271203 | Crosslinking of photoiniator-initialized polyacrylates A process for increasing the molecular weight of polyacrylates, characterized in that polyacrylates which are functionalized at least on one part of their chain ends by photoinitiator groups X are exposed to actinic radiation, so that a direct linking reaction of th... | 09/18/2007 |
| 7220808 | Thiol compound, copolymer and method for producing the copolymer By resolving objections in the prior art, provided are a novel copolymer suitable as a coating polymers which is excellent in adhesion to a substrate and can be used suitably as the polymer for the coating film having durability against pattern collapse in the finer... | 05/22/2007 |
| 7217773 | Method for producing polyisobutene A process is described for preparing polyisobutene having a content of terminal vinylidene groups of at least 75 mol % by polymerizing isobutene or isobutenic hydrocarbon mixtures in the liquid phase in the presence of a boron trifluoride complex catalyst of the com... | 05/15/2007 |
| 7205342 | Poly(arylene ether) composition and method of molding A low gloss thermoplastic composition comprises poly(arylene ether), a rubber-modified poly(alkenyl aromatic) resin and an acrylonitrile containing polymer gel. ... | 04/17/2007 |
| 7199203 | Isotactic propylene copolymer fibers, their preparation and use Fibers comprising a propylene homopolymer or a copolymer of propylene and at least one of ethylene and one or more unsaturated comonomers exhibit desirable properties. The homopolymers are characterized as having 13C NMR peaks corresponding to a regio-err... | 04/03/2007 |
| 7199196 | Dispersions containing perfluorovinyl ether homopolymers and use thereof The present invention provides a method of preparing an aqueous dispersion of poly(perfluorovinyl ether) homopolymers. The present invention further relates to a method of making an aqueous fluoropolymer dispersion comprising bicomponent particles of poly(perfluorov... | 04/03/2007 |
| 7166178 | Protective film and method for preparing same A high-quality protective film for a dry film resist is provided. A film of a polyethylene is used as the protective film, the polyethylene being prepared by pressurizing ethylene with use of an ultra-high pressure compressor and then polymerizing the ethylene at a ... | 01/23/2007 |
| 7153573 | Polymer composite particle comprising metal oxide and silicone and/or fluorine and method of producing the same The invention provides a polymer composite particle having superb blending stability even in a W/O emulsion cosmetic, a highly effective ultraviolet protection effect and a good feeling in use. The invention also relates to a method of producing the polymer composit... | 12/26/2006 |
| 7135593 | Degradable crosslinkers, and degradable crosslinked hydrogels comprising them One aspect of the present invention relates to base-labile crosslinkers. A second aspect of the present invention relates to degradable crosslinked polymers and hydrogels comprising a base-labile crosslinker. The present invention also relates to a method of influen... | 11/14/2006 |
| 7105602 | Processing aid for thermoplastic resin and thermoplastic resin composition containing the same The present invention provides a processing aid for thermoplastic resin having a weight average molecular weight of 10,000 to 300,000, which is obtained by polymerizing an alkyl (meth)acrylate, or an alkyl (meth)acrylate and another vinyl monomer copolymerizable the... | 09/12/2006 |
| 7094851 | Low equivalent weight ionomer An ionomer and a process for forming the ionomer such that the ionomer has (1) low equivalent weight (below 950, preferably between 625 and 850, and most preferably between 675 and 800) and (2) high conductivity (greater than 0.13 S/cm). In another embodiment, the i... | 08/22/2006 |
| 7083645 | Water plasticized high refractive index polymer for ophthalmic applications A high refractive index, foldable polymer suitable for use in ophthalmic devices, such as intraocular lenses, is provided. The polymer may be produced from a polymerization reaction of first, second and third monomeric components and a crosslinking agent. The first ... | 08/01/2006 |
| 7041765 | Films comprising isotactic propylene copolymers Films with excellent machine direction (MD) tear properties comprise at least one layer made from a polymer comprising: (A) at least 50 weight percent (wt%) propylene; and (B) at least 5 wt % ethylene and/or one or more unsaturated comonomers. Represen... | 05/09/2006 |
| 7041409 | Low equivalent weight ionomer An ionomer and a process for forming the ionomer such that the ionomer has (1) low equivalent weight; below 950, preferably between 625 and 850, and most preferably between about 700 and about 800; and (2) high conductivity, (greater than 0.15 S/cm). In an alternati... | 05/09/2006 |
| 7034085 | Method for polymerizing ethylenically unsaturated monomers by degenerative iodine transfer The invention pertains to a method for making a block or gradient final (co)polymer comprising a step of radically polymerizing a mixture of ethylenically unsaturated monomers in the presence of a) a radical precursor and b) an iodine atom-containing intermediate po... | 04/25/2006 |
| 7022428 | Low equivalent weight ionomer An ionomer and a process for forming the ionomer such that the ionomer has (1) low equivalent weight; below 950, preferably between 625 and 850, and most preferably between about 700 and about 800; and (2) high conductivity, (greater than 0.15 S/cm). In an alternati... | 04/04/2006 |
| 7019040 | Process for the preparation of porous polymer particles based on acrylate and/or methacrylate The present invention relates to a process for the preparation of porous polymer particles based on acrylate and/or methacrylate, comprising the steps of provision of a reaction mixture comprising at least one monomer chosen from the group consisting of acrylate and... | 03/28/2006 |
| 7019052 | Liquid substance mixtures and (co)-polymers, method for their production and use thereof for producing complex reactive mixtures Liquid compositions and homopolymers or copolymers of olefinically unsaturated compounds, preparable by (co)polymerizing olefinically unsaturated compounds and reactive diluents for thermally curable multisubstance mixtures as reaction medium, and their use to prepa... | 03/28/2006 |
| 7005490 | Method for making methacrylate unit-containing low-polydispersity polymers The invention pertains to a method for making a methacrylate unit-containing polymer with polydispersity | 02/28/2006 |
| 6960635 | Isotactic propylene copolymers, their preparation and use Unique copolymers comprising propylene, ethylene and/or one or more unsaturated comonomers are characterized as having: at least one, preferably more than one, of the following properties: (i) 13C NMR peaks corresponding to a regio-error at about 14.6 and... | 11/01/2005 |
| 6946535 | Films comprising isotactic propylene copolymers Films with excellent machine direction (MD) tear properties comprise at least one layer made from a polymer comprising: (A) at least 50 weight percent (wt %) propylene; and (B) at least 5 wt % ethylene and/or one o... | 09/20/2005 |
| 6939927 | Process for making vinyl pyrrolidone/vinyl acetate copolymers having a very low residual vinyl pyrrolidone monomer level within a short production cycle Vinyl pyrrolidone/vinyl acetate copolymers having a very low residual vinyl pyrrolidone monomer level, i.e. | 09/06/2005 |
| 6927258 | Elastic blends comprising crystalline polymer and crystallizable polymers of propylene Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplasti... | 08/09/2005 |
| 6924341 | Polymer formation in room temperature ionic liquids Methods and compositions for polymerization in ionic medium liquid at room temperature provide the benefit of allowing polymerization reactions to be carried out cheaply, and relatively quickly. The replacement of VOCs by these environmentally benign solvents has th... | 08/02/2005 |
| 6919407 | Blends and sealant compositions comprising isotactic propylene copolymers Films with excellent machine direction (MD) tear properties comprise at least one layer made from a polymer comprising: (A) at least 50 weight percent (wt %) propylene; and (B) at least 5 wt % ethylene and/or one o... | 07/19/2005 |
| 6911511 | Controlled radical polymerization process using a small amount of stable free radical The invention relates to a process for the polymerization of at least one monomer which can be polymerized via a radical route, in the presence of a stable free radical and of a polymerization initiator, such that, per 100 mol of monomer, the molar amounts of stable... | 06/28/2005 |
| 6911482 | Ion exchange fluorocarbon resin precursor composition An ion exchange fluorocarbon resin precursor composition obtained by removing liquid components from a mixed solution of a dispersion of an ion exchange fluorocarbon resin precursor and a dispersion of tetrafluoroethylene polymer (PTFE). ... | 06/28/2005 |
| 6906160 | Isotactic propylene copolymer fibers, their preparation and use Fibers comprising a propylene homopolymer or a copolymer of propylene and at least one of ethylene and one or more unsaturated comonomers exhibit desirable properties. The homopolymers are characterized as having 13C NMR peaks corresponding to a regio-err... | 06/14/2005 |
| 6878797 | Synthesis and applications of polymaleimide A process for producing alkali metal polymaleimide salts by alkaline hydrolysis of maleimide polymers prepared by polymerization of maleimide monomers in the presence of a metal oxide and alcohol initiator or a base. In particular, the process produces alkali metal ... | 04/12/2005 |
| 6858690 | Process for polymerizing cationically polymerizable monomers The invention relates to a new catalyst system that improves the heat transfer capability of a butyl reactor slurry process system in the production of isobutylene-based polymers in continuous slurry polymerization processes. The process is carried out in an anhydro... | 02/22/2005 |
| 6806310 | Coated substrates for computer printers Copolymers of dimethylaminopropyl methacrylamide and hydroxyethyl methacrylate having residual monomer levels of | 10/19/2004 |
| 6777505 | Method for manufacturing ethylene-vinyl acetate copolymer and apparatus for manufacturing the same The present invention provides a method for manufacturing an ethylene-vinyl acetate that includes: (a) introducing an ethylene containing gas and a vinyl acetate containing liquid into a heat exchanger, said gas including ethylene vaporized from a polymerizat... | 08/17/2004 |
| 6770703 | Process for the preparation of powder coating composition A process for the preparation of a powder coating composition, wherein 5-90% by weight of at least one monomeric compound selected from glycidyl group-containing unsaturated compounds and methylglycidyl group-containing unsaturated compounds is copolymerized with 95... | 08/03/2004 |
| 6753389 | Method for the production of highly reactive polyisobutenes Polyisobutene is prepared by cationic polymerization of isobutene and/or isobutene-containing hydrocarbons in the liquid phase in the presence of a complex of BF3 and at least one cocatalyst which is preferably chosen from oxygen-containing compounds, the... | 06/22/2004 |
