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| Number | Title | Issue Date |
| 8163852 | Resist polymer and method for producing the polymer Solving problems in the prior art, provided are a resist polymer which is small in lot-to-lot, reactor-to-reactor and scale-to-scale variations, and contains no high polymer, is excellent in solubility and storage stability, and is suitable for fine pattern formatio... | 04/24/2012 |
| 7851568 | Vinylpyrrolidone-based copolymer and a method for production thereof There is provided a vinylpyrrolidone-based copolymer having as essential components N-vinylpyrrolidone and hydroxyl group-containing (meth)acrylate, which gives a favorable crosslinked coating film, and a method for production by which the copolymer is easily obtain... | 12/14/2010 |
| 7834110 | Addition of organic initiators during the pressure drop in vinyl chloride monomer polymerization reactions The invention pertains to a process to polymerize one or more monomers wherein one or more initiators and optionally one or more surfactants are added to a polymerization mixture when the pressure in the polymerization reactor is dropping. This process allows a shor... | 11/16/2010 |
| 7790817 | Process for producing fluoropolymer Provided is a process for producing a fluoropolymer containing repeating units based on a fluoromonomer represented by the following formula (m) in an amount of from 5 to 50 mol % based on the entire repeating units in the polymer by polymerization reaction of tetra... | 09/07/2010 |
| 7399810 | Polymerization of monomers with differing reactivities There is provided a process for producing a polymer comprising the steps of (a) adding at least one low-reactivity monomer to a reaction vessel with a decreasing rate of addition, (b) adding at least one high-react... | 07/15/2008 |
| 7396886 | Process for making copolymers of maleic anhydride and alkyl vinyl ether of high specific viscosity A process for making high specific viscosity copolymers of maleic anhydride and an alkyl vinyl either having as specific viscosity of at least 7, preferably 10-50, are made by copolymerizing maleic anhydride and an alkly vinyl ether monomers in the presence of added... | 07/08/2008 |
| 7390865 | Process for producing water-soluble carboxylated polymer A process for preparing a water-soluble carboxyl group-containing polymer comprising reacting an α,β-unsaturated carboxylic acid with a compound having at least two ethylenically unsaturated groups in an inert solvent in the presence of a radical polymerization in... | 06/24/2008 |
| 7335709 | Polymerizate composition and a method for producing the same The invention relates to water-soluble, preferably powder-form polymer compositions which are obtained by continuous polymerization of at least one unsaturated monomer. At least one parameter that influences the polymerization is varied according to a recurrent patt... | 02/26/2008 |
| 7321006 | Admixture for cement There are provided an admixture for cement which enhances water reducing property and flowability of a cement composition, and is excellent in slump retaining performance to retain the flowability with time, a polycarboxylic acid-based polymer for an admixture for c... | 01/22/2008 |
| 7265159 | Monodisperse anion exchangers Process for preparing monodisperse weakly basic or optionally strongly basic anion exchangers of the poly(meth)acrylamide type, the ion exchangers themselves and their use. ... | 09/04/2007 |
| 7247662 | Cement dispersant, its production process, and cement composition using the cement dispersant Disclosed are the following: a cement dispersant which is excellent in initial dispersibility and further in flow retainability of cement, because of using a polymer having a proper molecular weight distribution; a process for producing this cement dispersant; and a... | 07/24/2007 |
| 7217775 | Emulsion particles as reinforcing fillers A rubber composition having improved processability and which provides a vulcanized rubber exhibiting excellent wear resistance and good tensile strength to service temperatures of up to about 150° C. The composition comprises (1) a crosslinked polymer particle hav... | 05/15/2007 |
| 7205362 | Method for controlled radical polymerization The present invention relates to a process for controlled radical polymerization using an organosulfur reversible chain transfer agent which consists in preparing polymers having a molar weight of greater than 100 000 g/mol, with a polydispersity index of less than ... | 04/17/2007 |
| 7202312 | Method for preparing cyclic olefin polymer having high bulk density and cyclic olefin polymer prepared thereby A method for preparing a cyclic olefin polymer is described. The method includes polymerizing cyclic olefin monomers or a cyclic olefin monomer with ethylene to prepare a cyclic olefin polymer solution; slowly adding a non-solvent drop wise to the cyclic olefin poly... | 04/10/2007 |
| 7196143 | High-softening-point copolymer, process for producing the same, and product of hydrogenation thereof Provided are a high melting point copolymer prepared by heat-polymerizing cyclopentadiene and/or dicyclopentadiene and a vinyl-substituted aromatic compound, wherein a use amount of a solvent in heat polymerization is 0.1 time or more and less than 0.5 time based on... | 03/27/2007 |
| 7175874 | Apparatus and method for coating implantable devices A coating for implantable devices, such as stents, and a method of making the same is disclosed. Moreover, an apparatus for depositing the coating is disclosed. ... | 02/13/2007 |
| 7173083 | Polymer composition comprising a polymer having a gradient polymeric morphology An aqueous composition comprising components: (A) 50 to 99 wt. % of a vinyl polymer(s) having a gradient polymeric morphology; and (B) 1 to 50 wt. % of at least one polymer not having a gradient polymeric morphology, wherein components (A) and (B) add up to 100%. | 02/06/2007 |
| 7169178 | Stent with drug coating Coatings for stents that include a polymer and a drug are provided. A method of forming the coatings is also provided. ... | 01/30/2007 |
| 7169173 | Composite stent with regioselective material and a method of forming the same A composite stent and a method for making the same are provided. ... | 01/30/2007 |
| 7157531 | Methods for producing polymers with control over composition distribution Methods for controlling a melt viscosity of a polyolefin, controlling comonomer distribution of a polyolefin, achieving a targeted melt viscosity of a polyolefin, and films made from such polyolefins are provided. The methods include contacting an olefin monomer and... | 01/02/2007 |
| 7148297 | Catalytic polymerization process This invention relates to a process for controlling the architecture of copolymers of at least two unsaturated monomers, made by free-radical polymerization in the presence of a cobalt-containing chain transfer agent, including the control of molecular weight, degre... | 12/12/2006 |
| 7138451 | Bonding material solution and the use thereof in an automotive spot repair kit A binder solution comprising, based on the solution, (A) from 30 to 50% by weight of an alkyl and/or cycloalkyl acetate of 3 to 10 carbon atoms in the alkyl and/or cycloalkyl radical, (B) from 30 to 50% by weight o... | 11/21/2006 |
| 7125939 | Olefin polymerization with polymer bound single-site catalysts Disclosed is a process for polymerizing olefins. The process comprises polymerizing one or more olefins with a single-site catalyst in two or more polymerization stages. The catalyst comprises a transition metal complex, an activator, and a hydroxyl functional polym... | 10/24/2006 |
| 7122291 | Photoresist compositions The present invention provides for a photoresist composition comprising a mixture of two different copolymers. ... | 10/17/2006 |
| 7109275 | Co-metering of organic initiators and protective colloids during polymerization reactions The invention pertains to a process wherein initiators and protective colloids are both metered to a polymerization mixture. This manner of metering allows for improved control of the polymerization rate and an improved reactor space-time yield, and the process will... | 09/19/2006 |
| 7101927 | Latex obtainable by a gradient regime reaction A latex having a reduced amount of 4-phenylcyclohexene is obtainable by reacting A) 30–90% by weight of at least one ethylenically unsaturated monomer; B) 70–10% by weight of a diene; C) 1–10% by weight of α,β-unsaturated carboxylic acids, carboxylic acid ni... | 09/05/2006 |
| 7078441 | Organic porous material, process for manufacturing the same, and organic porous ion exchanger An organic porous material having a continuous pore structure, which comprises interconnected macropores and mesopores with a radius of 0.01 to 100 μm in the walls of the macropores, having a total pore volume of 1 to 50 ml/g and having pore distribution curve char... | 07/18/2006 |
| 7067584 | Solvent-containing coating material and the use thereof Method for making a solvent-containing coating material comprising 5 to 70% by weight of at least one mixture of substances (A). The mixture of substances is obtained by copolymerizing in at least one hydroxy-group containing reactive diluent a mixture (A1) of olefi... | 06/27/2006 |
| 7063931 | Positive photoresist composition with a polymer including a fluorosulfonamide group and process for its use A positive photoresist composition comprises a radiations sensitive acid generator, and a polymer that may include a first repeating unit derived from a sulfonamide monomer including a fluorosulfonamide functionality, and a second repeating unit, which may include a... | 06/20/2006 |
| 7053157 | Method for production of multimodal polyolefins of tunable composition, molecular weight, and polydispersity The present invention relates to a method of producing multimodal polyolefins using at least one or more activated metallocene catalysts. The activated metallocene catalysts are used in combination in a single-process method. The method allows for the production of ... | 05/30/2006 |
| 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 |
| 6995216 | Process for manufacturing single-site polyolefins A dual olefin polymerization process is disclosed. The process uses a bridged indenoindolyl ligand-containing Group 4 transition metal complex and an activator. It is carried out in multiple stages or in multiple reactors. The same complex and the same activator are... | 02/07/2006 |
| 6964999 | Polymer and curable composition A vinyl polymer having at least one terminal group of the general formula (1) per molecule; —OC(O)C(R)═CH2 (1) wherein R represents hydrogen or an organic group containing 1 to 20 carbon atoms; | 11/15/2005 |
| 6946505 | Cement dispersant, its production process, and cement composition using the cement dispersant Disclosed are the following: a cement dispersant which is excellent in initial dispersibility and further in flow retainability of cement, because of using a polymer having a proper molecular weight distribution; a process for producing this cement dispersant; and a... | 09/20/2005 |
| 6930156 | Polymer bound single-site catalysts A single-site catalyst is disclosed. The catalyst comprises a transition metal complex, an activator, and an allylic alcohol-containing polymer. The catalyst has high activity and great capability to incorporate higher α-olefins into polyethylene. The polyethylene ... | 08/16/2005 |
| 6903175 | Polymer synthesis and films therefrom Disclosed are methods of preparing solution polymers and compositions derived therefrom. ... | 06/07/2005 |
| 6887955 | Method for high pressure polymerization of ethylene In a process for the polymerization of ethylene and optionally further monomers in a high-pressure reactor at from 120 to 350° C. and pressures of from 1000 to 4000 bar, hydrogen is intermittently introduced into the reactor. ... | 05/03/2005 |
| 6872789 | Cross-linkable polymer composition The invention pertains to a polymer obtainable from the steps: polymerizing a mixture, that is substantially free or organic solvents, of ethylenically unsaturated monomers which consist for at least 70% of methacrylates, and which... | 03/29/2005 |
| 6846884 | Control of resin properties A method for controlling resin properties during the production of polyolefins is provided. The method utilizes coordinated manipulation of reaction temperature in combination with a secondary process variable to control resin flow properties to rapidly respond to m... | 01/25/2005 |
| 6841639 | Polymer solutions Copolymers of zwitterionic monomer, especially 2-methacryloyloxyethyl-2′-trimethylammoniumethyl phosphate inner salt, and hydrophobic comonomer, especially dodecylmethacrylate, are made in a monomer starved polymerization process in which solutions of monomers are... | 01/11/2005 |
