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| Number | Title | Issue Date |
| 8058375 | Use of ethylene-tetrafluoroethylene carboxylic acids and salts as surfactants for aqueous emulsion polymerization of fluorinated monomer Provided are polyfluorinated carboxylic acids and their salts containing an ethylene-tetrafluoroethylene moiety. The polyfluorinated carboxylic acids and salts are useful as surfactants in polymerization processes. ... | 11/15/2011 |
| 7365115 | Composition for antireflection coating and method for forming pattern An anti-reflective coating film is formed by applying on a chemically amplified photoresist film an anti-reflective coating composition comprising an alkali-soluble fluorine-containing polymer, an acid, an amine and a solvent capable of dissolving these components a... | 04/29/2008 |
| 7332554 | Polymers with new sequence distributions The invention relates to new polymerization processes including diluents including hydrofluorocarbons and their use to produce novel polymers with new sequence distributions. In particular, the invention relates to copolymers of an isoolefin, preferably isobutylene,... | 02/19/2008 |
| 7332555 | Polymers with new sequence distributions The invention relates to new polymerization processes including diluents including hydrofluorocarbons and their use to produce novel polymers with new sequence distributions. In particular, the invention relates to copolymers of an isoolefin, preferably isobutylene,... | 02/19/2008 |
| 7332553 | Functional monomers for molecular recognition and catalysis The present invention refers to new classes of polymerisable monomers, to molecularly imprinted polymers obtainable by polymerisation of at least one of the monomers and a crosslinking monomer in the presence of a template molecule. The obtained polymers may be used... | 02/19/2008 |
| 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 |
| 7320822 | Electrophotographic conductive member and electrophotographic apparatus In an electrophotographic conductive member composed of at least a thermoplastic resin composition, the thermoplastic resin composition contains a thermoplastic resin, a conductive filler and a conductive-filler dispersing agent, and the conductive-filler dispersing... | 01/22/2008 |
| 7294668 | Aqueous dispersions of polytetrafluoroethylene having a low amount of fluorinated surfactant An aqueous non-melt processible polytetrafluoroethylene dispersion having non-melt processible polytetrafluoroethylene particles in an amount of 30 to 70% by weight and an amount of non-ionic surfactant between 2 and 15% by weight based on the weight of polytetraflu... | 11/13/2007 |
| 7285610 | Synthesis method for polymers by controlled radical polymerisation with xanthates A polymer composition and method of preparing same is described wherein an ethylenically unsaturated monomer is contacted with a source of free radicals and a compound of formula (1A), (1B) and (1C) as defined herein. The polymer composition may be a homopolymer or ... | 10/23/2007 |
| 7268189 | Polymers The invention relates to novel crosslinkable copolymers which are obtainable by (a) copolymerizing at least one hydrophilic monomer having one ethylenically unsaturated double bond and at least one crosslinker comprising two or more ethylenically unsaturated ... | 09/11/2007 |
| 7252740 | (per) fluoropolyether carboxylic acids and use thereof for the oleo-repellent paper sizing Carboxylic acids comprising perfluoropolyether chains, of formula: T1—CFW1—O—Rf—CFW2—T2 (I) wherein T1, T2, equal to or different from each other, are sel... | 08/07/2007 |
| 7238750 | Polymers The invention relates to novel crosslinkable copolymers which are obtainable by (a) copolymerizing at least one hydrophilic monomer having one ethylenically unsaturated double bond and at least one crosslinker comprising two or more ethylenically unsatu... | 07/03/2007 |
| 7232872 | Polymerization processes The invention provides for a process to produce polymers utilizing a hydrofluorocarbon diluent. ... | 06/19/2007 |
| 7230063 | Functional trithiocarbonate RAFT agents The present invention is directed to a free radical control agent of the structural formula: wherein R1 is a divalent alkyl group of 1 to 12 carbon atoms, R2 and R3 are each indep... | 06/12/2007 |
| 7220508 | Solid polymer electrolyte material, liquid composition, solid polymer fuel cell and fluoropolymer A solid polymer electrolyte material made of a copolymer comprising a repeating unit based on a fluoromonomer A which gives a polymer having an alicyclic structure in its main chain by radical polymerization, and a repeating unit based on a fluoromonomer B of the fo... | 05/22/2007 |
| 7214750 | Polymerization processes The invention relates to new processes to produce polymers utilizing bayonette cooled slurry reactor systems and diluents including hydrofluorocarbons. ... | 05/08/2007 |
| 7211629 | Process for the preparation of low fuming fluoropolymer The present invention relates to the reduction of oligomer content of melt-processible fluoropolymer so that the fluoropolymer has at least 25 ppm less oligomer than the as-polymerized fluoropolymer, the reduction being obtained by melting the fluoropolymer forming ... | 05/01/2007 |
| 7208557 | Functional monomers for molecular recognition and catalysis The present invention refers to new classes of polymerisable monomers, to molecularly imprinted polymers obtainable by polymerisation of at least one of the monomers and a crosslinking monomer in the presence of a template molecule. The obtained polymers may be used... | 04/24/2007 |
| 7176255 | Method for producing aqueous polymer dispersions containing colorants The present invention relates to a process for preparing dye-comprising aqueous polymer dispersions by free-radical aqueous emulsion polymerization of ethylenically unsaturated monomers in the presence of free-radical initiators, in which at least some of the monome... | 02/13/2007 |
| 7141620 | Aqueous polytetrafluoroethylene dispersion composition and process for its production To an aqueous PTFE polymer emulsion having a PTFE content of from 10 to 50 mass % obtained by emulsion polymerization of tetrafluoroethylene in the presence of an anionic perfluorocarboxylate surfactant (APFC), from 2 to 20 mass %, based on the mass of PTFE, of a no... | 11/28/2006 |
| 7125938 | Atom or group transfer radical polymerization A polymerization process comprising initiating a first polymerization of monomers using an initiator functionalized with an ATRP initiating site, wherein the first polymerization is selected from the group of cationic polymerization, anionic polymerization, conventi... | 10/24/2006 |
| 7125941 | Aqueous emulsion polymerization process for producing fluoropolymers The present invention provides a method of making a fluoropolymer through emulsion polymerization of one or more fluorinated monomers in an aqueous phase in the presence of a fluorinated surfactant. At least part of the fluorinated surfactant is added to the aqueous... | 10/24/2006 |
| 7126056 | High melt flow fluoropolymer The present invention relates to a partially-crystalline copolymer comprising tetrafluoroethylene, hexafluoropropylene in an amount corresponding to HFPI of from about 2.8 to 5.3, and preferably from about 0.2% to 3% by weight of perfluoro(alkyl vinyl ether), said c... | 10/24/2006 |
| 7122610 | Method of producing thermoplastic fluoropolymers using alkyl sulfonate surfactants Nonfluorinated surfactants selected from C7–C20 linear 1-alkanesulfonates, 2-alkanesulfones, and 1,2-alkanedisulfones are particularly effective for stabilizing emulsions in preparing non-elastomeric fluoropolymers containing at least 71 wt % vinylidene fluoride a... | 10/17/2006 |
| 7122609 | High melt flow fluoropolymer The present invention relates to a partially-crystalline copolymer comprising tetrafluoroethylene, hexafluoropropylene in an amount corresponding to a hexafluoropropylene index (HFPI) of from about 2.8 to 5.3, and preferably from about 0.2% to 3% by weight of perflu... | 10/17/2006 |
| 7091283 | Crosslinkable prepolymers from a hydrophilic monomer and a hydrophobic crosslinker The invention relates to novel crosslinkable copolymers which are obtainable by (a) copolymerizing at least one hydrophilic monomer having one ethylenically unsaturated double bond and at least one crosslinker comprising two or more ethylenically unsaturated double ... | 08/15/2006 |
| 7078147 | Polymers, resist compositions and patterning process A resist composition comprising a base polymer having sulfone or sulfonate units introduced therein is sensitive to high-energy radiation below 300 nm, is endowed with excellent adherence to substrates while maintaining transparency, and is suited for lithographic m... | 07/18/2006 |
| 7056413 | Acrylate copolymers and pressure-sensitive adhesives obtainable therefrom for bonding low-energy surfaces An acrylate copolymer for use in pressure-sensitive adhesives, particularly suitable for the bonding of low-energy surfaces, is composed of the following monomer components: A) 60 to 95% by weight of one or more monomers selected from alkyl acrylates and alkyl metha... | 06/06/2006 |
| 7001966 | Method for the production of isobutene polymers The present invention relates to a process for preparing an isobutene polymer using a cyclopentene derivative as initiator and to the isobutene polymer obtainable by means of the process and to particular functionalization products thereof. ... | 02/21/2006 |
| 6984675 | Formaldehyde-free binder compositions for simultaneous warp sizing and coloration of filament yarns An aqueous dispersion has an addition polymer (B) formed in situ on a sulfopolyester (A). The sulfopolyester (A) is formed as a polycondensation product of first and second reaction mixtures. The first reaction mixture includes at least about 70 mol. % of terephthal... | 01/10/2006 |
| 6828401 | Preparation method of peg-maleimide derivatives The present invention relates to novel synthetic methods for PEG-maleimide derivatives, specifically, novel synthetic methods for PEG-maleimide. The final products thereof are useful as a pegylation reagent in the field of bioengineering and the medicinal field or t... | 12/07/2004 |
| 6809164 | Synthesis method for polymers by controlled radical polymerisation with xanthates The invention concerns a method for preparing polymers, characterised in that it consists in contacting: at least an ethylenically unsaturated polymer, at least a source of free radicals, and at least a compound of general formula (IA) wherein R2 represen... | 10/26/2004 |
| 6787594 | Reduced formaldehyde nonwoven binders which contain polymerized units of N-methylolacrylamide The invention is the use of a glycolic acid adduct of sodium sulfite as the reducing agent in the redox couple for polymerization of vinyl acetate polymer based emulsions for nonwoven binders which contain formaldehyde, primarily from the self-crosslinking co-monome... | 09/07/2004 |
| 6727318 | Method for producing aqueous polymer dispersions containing colorants The present invention relates to a process for preparing dye-comprising aqueous polymer dispersions by free-radical aqueous emulsion polymerization of ethylenically unsaturated monomers in the presence of free-radical initiators, in which at least some of the monome... | 04/27/2004 |
| 6700023 | Low temperature initiators for fluoroolefin polymerization A new class of low temperature initiators has been found, enabling fluoroolefin polymerizations at relatively low temperatures. These initiators are diacyl peroxides which allow improved productivity and product properties, as well as more favorable react... | 03/02/2004 |
| 6649708 | Process for producing polymer particles To provide a process for producing polymer particles which are spherical and have smooth surfaces and small contents of oil- and the solvent-soluble at the time of being compounded. Polymer particles are produced by adding 0.099 to 47 parts by mass of a c... | 11/18/2003 |
| 6555638 | Production of water-expandable styrene polymers A process for the preparation of styrene polymers containing water as the sole expanding agent by polymerization of styrene in aqueous suspension in the presence of an amphiphilic organic emulsifier which carries both hydrophilic and hydrophobic groups, o... | 04/29/2003 |
| 6444768 | Production of polyisobutylene copolymers The invention relates to a new improved catalyst to produce random copolymers of one or more iso-olefin monomers and one or more para-alkylstyrene monomers. The invention also relates to an improved continuous slurry polymerization process to produce rand... | 09/03/2002 |
| 6395848 | Polymerization of fluoromonomers Aqueous dispersion polymerization of fluoromonomers is improved by using a combination of fluorosurfactants, one of which is a perfluoropolyether carboxylic acid or sulfonic acid or salt of either.... | 05/28/2002 |
| 6391983 | Casting composition of aromatic polyvinyl monomer, polythiol and epoxy strain reducer A crosslinkable polymeric casting composition comprises an aromatic polyvinyl monomer such as divinyl benzene, a polythiol such as pentaerythritol tetrakis-(3-mercaptopropionate), an epoxide strain-reducing agent such as hexanediol diglycidyl ether, and, ... | 05/21/2002 |
