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| Number | Title | Issue Date |
| 7135534 | Polymer support for solid phase peptide synthesis and process for preparation thereof A novel polymer support for solid phase peptide synthesis comprising polystyrene backbone and propoxylate function of hexanedioldiacrylate crosslinks having optimum hydrophilic/hydrophobic balance and a process of preparation thereof. ... | 11/14/2006 |
| 7132485 | Dosing of peroxide to a suspension process wherein styrene is polymerized The invention relates to a suspension polymerization process for the preparation of styrene-containing (co)polymers, wherein the process comprises the steps of continuously or semi-continuously dosing an initiator to the reaction mixture, said initiator having a spe... | 11/07/2006 |
| 7087689 | Method for polymerizing styrene A method of homogeneously polymerizing styrene comprising admixing an ethylenically unsaturated monomer and an initiation system that is soluble in the monomer. This system includes a metal; a peroxide, hydroperoxide or mixture thereof; and a reductant. Under approp... | 08/08/2006 |
| 7077964 | Process for preparing monodisperse ion exchangers having chelating functional The present invention relates to a process for preparing novel, monodisperse ion exchangers having chelating functional groups, and their use for adsorbing metal compounds, in particular, heavy metal compounds and noble metal compounds, and also for extracting alkal... | 07/18/2006 |
| 7033706 | Resin compositions for polymer solid electrolytes as well as polymer solid electrolytes and polymer batteries using them Polymer solid electrolytes with good film strength, high ionic conductivity and excellent processability are provided, comprising a resin composition for polymer solid electrolytes containing 0.5–5.0% by weight of a curable resin having a specific structure (A), a... | 04/25/2006 |
| 6995221 | Method for producing organic peroxides and their use in the radical polymerization of monomers A process for producing organic peroxide initiators useful in the polymerization of ethylenically unsaturated monomers. The process for making the organic peroxides includes forming an aqueous emulsion of the organic peroxide. The organic peroxide is dispersed as sm... | 02/07/2006 |
| 6960638 | Depot polymerization starter beads The invention relates to polymer beads having a high content of diacyl peroxides. A prolongation of the pot life in reaction resins based on high-boiling methacrylate esters is achieved due to this high content of peroxides. ... | 11/01/2005 |
| 6811960 | Partially crosslinked polymer for bilayer photoresist The present invention provides photoresist monomers, photoresist polymers derived from the same, processes for producing such photoresist polymers, photoresist compositions comprising such polymers, and processes for producing a photoresist pattern using such photor... | 11/02/2004 |
| 6806025 | Photoresist monomers, polymers thereof and photoresist compositons containing the same Photoresist monomers of following Formula 1, photoresist polymers thereof, and photoresist compositions containing the same. The photoresist composition has excellent etching resistance, heat resistance and adhesiveness to a wafer, and is developable in aqueous tetr... | 10/19/2004 |
| 6794110 | Polymer blend and associated methods of preparation and use A polymer blend is provided for use in a lithographic photoresist composition, particularly a chemical amplification photoresist. In a preferred embodiment, the polymer blend is substantially transparent to deep ultraviolet radiation, i.e., radiation of a wavelength... | 09/21/2004 |
| 6740718 | Non-linear polymer product derived from dilute multi-component feeds The invention relates to a method of forming carbon monoxide-containing polymers from multi-component syngas feeds and at least one vinyl comonomer. Feeds useful in the practice of the invention comprise ethylene in an amount ranging from about 5 to about 40 mole %,... | 05/25/2004 |
| 6727335 | Polymeric phosphinic acids and salts thereof The invention relates to polymeric phosphinic acids and their salts of the formula (I) in which X is hydrogen or a 1/m metal of valency m, R1 and R2 are identical or different and are ... | 04/27/2004 |
| 6720129 | Maleimide-photoresist polymers containing fluorine and photoresist compositions comprising the same Photoresist polymers, and photoresist compositions using the polymer are disclosed. More specifically, photoresist polymers containing maleimide represented by Formula 1. Photoresist compositions including the photoresist polymers have excellent etching resistance, ... | 04/13/2004 |
| 6664330 | Waterborne resin emulsion and waterborne coating An emulsion of a monomer having a radical polymerizable unsaturated bond, which is obtained by emulsifying the monomer in the presence of an emulsifier, and a mixed solution of a specific non-radical polymerizable organosilicon compound and a polymerizati... | 12/16/2003 |
| 6653047 | Photoresist monomers containing fluorine-substituted benzylcarboxylate and photoresist polymers comprising the same Photoresist monomers, photoresist polymers prepared therefrom, and photoresist compositions using the polymers are disclosed. More specifically, photoresist polymers comprising a photoresist monomer containing fluorine-substituted benzylcarboxylate repres... | 11/25/2003 |
| 6649663 | Process for preparing monodisperse ion exchangers having chelating functional groups and the use thereof The present invention relates to a process for preparing novel, monodisperse ion exchangers having chelating functional groups, and their use for adsorbing metal compounds, in particular, heavy metal compounds and noble metal compounds, and also for extra... | 11/18/2003 |
| 6627383 | Photoresist monomer comprising bisphenol derivatives and polymers thereof Photoresist monomers of following Formula 1, photoresist polymers thereof, and photoresist compositions using the same. The photoresist composition has excellent etching resistance, heat resistance and adhesiveness, and is developable in aqueous tetrameth... | 09/30/2003 |
| 6566473 | Process for making a vinyl amide polymer composition for skin and hair compositions A non-aqueous, heterogeneous polymerization process comprises heating a reaction mixture of about 5-70%, preferably 10-50%, by weight, of a vinyl amide monomer in an oil as solvent, and a water-soluble cosolvent, and a free radical initiator, optionally i... | 05/20/2003 |
| 6541586 | Polymerization processes for using dilute multicomponent feeds (LAW624) The invention relates to a method of forming carbon monoxide-containing polymers from multi-component syngas feeds and at least one vinyl comonomer. Feeds useful in the practice of the invention comprise ethylene in an amount ranging from about 5 to about... | 04/01/2003 |
| 6482882 | (Co)polymerization process of fluoro-containing monomers for obtaining hydrogen containing polymers Polymerization process of unsaturated pefluoromonomers, fluoro-containing monomers and optionally in the presence of hydrogen containing olefins, for obtaining polymers contaning hydrogen and fluorine, which utilizes a microemulsion comprising the followi... | 11/19/2002 |
| 6479603 | Method for living free-radical polymerization The invention provides a process for the living free radical addition polymerization of one or more ethylenically unsaturated monomers using at least one free-radical polymerization initiator and in the presence of one or more stable N-oxyl radicals, wher... | 11/12/2002 |
| 6353068 | Polyacrylates and their use as degassing agents for paints and coatings Polyacrylates having an average molecular weight of from about 1000 to about 10,000 and the general formula ##STR1## where R4 is the radical of a known chain regulator or initiator, R1 is identical or different and is an alkyl radical, pr... | 03/05/2002 |
| 6281311 | Controlled free radical polymerization process A polymerization process for the preparation of (meth)acrylate containing homopolymers or block copolymers comprises heating a mixture of a free radical initiator, a stable free radical agent, and a polymerizable monomer compound to form a thermoplastic r... | 08/28/2001 |
| 6262193 | Process for the preparation of polymer particles Process for the preparation of polyvinylarene polymer particles by suspension polymerization, wherein (a) vinylarene monomers are suspended in an aqueous medium to yield a suspension; (b) the temperature of the suspension is adjusted to a temperature above ... | 07/17/2001 |
| 6262225 | Carbon monoxide containing polymers derived from synthesis gas (KWP-0002) The invention is related to an olefin-carbon monoxide-vinyl monomer terpolymer composition which is derived from an olefin feed and a synthesis gas feed and at least one vinyl monomer feed. The invention is also related to a method for preparing olefin-ca... | 07/17/2001 |
| 6258905 | Stabilized, unimolecular initiators for hydrocarbon polymerization Disclosed are stabilized unimolecular initiator compounds which are useful for initiating living radical polymerization of polymerizable hydrocarbons. The stabilized unimolecular initiator compounds are the reaction products of polymerization initiator ra... | 07/10/2001 |
| 6255421 | Non-aqueous, heterogeneous polymerization process and reaction product obtained thereby A non-aqueous, heterogeneous polymerization process comprises heating a reaction mixture of about 5-70%, preferably 10-30%, by weight, of a vinyl monomer in an oil as solvent, and a free radical initiator, optionally in the presence of a crosslinking agen... | 07/03/2001 |
| 6174977 | Cold curable resin composition and base material coated with the same Disclosed is a cold curable resin composition comprising at least a block copolymer in which a polymer portion having an epoxy group, a hydroxyl group and a hydrolytic silyl group and a polyorganosiloxane portion exist in the same molecular chain. A base ... | 01/16/2001 |
| 6084044 | Catalyzed process for producing high molecular weight monovinylidene aromatic polymers The present invention is a process for producing a high molecular weight monovinylidene aromatic polymer, comprising free radically polymerizing a vinyl aromatic monomer in the presence of less than 10 ppm of a vinyl acid having a pKa at 25° C. of less t... | 07/04/2000 |
| 5998392 | Benzoyl peroxide flocculent materials and methods of their preparation Improved compositions of benzoyl peroxide are prepared by at least partially dissolving benzoyl peroxide in diethylene glycol monoethyl ether to prepare a premixture which forms a flocculent composition of benzoyl peroxide when admixed with water or an aq... | 12/07/1999 |
| 5948874 | Acid catalyzed polymerization The present invention is an improvement in a free radical bulk polymerization process for preparing a high molecular weight polymer from a vinyl aromatic monomer characterized in that the polymerization is conducted in the presence of an acid catalyst hav... | 09/07/1999 |
| 5854365 | Toner for developing electrostatic image and method of manufacturing resin composition The present invention relates a toner for developing electrostatic images, comprising: a resin composition, which contains a binder resin and low molecular weight wax, and a coloring agent, wherein the binder resin does not substantially contain insoluble... | 12/29/1998 |
| 5723554 | Process for producing styrenic polymer There is provided a process for producing a styrenic polymer having a weight average molecular weight (Mw) of 200,000-500,000, a number average molecular weight (Mn) of 100,000-450,000 and a molecular weight distribution (Mw/Mn) of from 1.1 to 2 by free r... | 03/03/1998 |
| 5663252 | Process for preparing a branched polymer from a vinyl aromatic monomer A free radical polymerization process for producing a branched polymer from a vinyl aromatic monomer comprising polymerizing a vinyl aromatic monomer in the presence of a free radical initiator of the formula: ##STR1## wherein R is H, alkyl, or aralk... | 09/02/1997 |
| 5660776 | Process of making styrenic polymer pellets A true solution of up to about 15 weight % of polyphenylene ether (PPO) in a styrenic polymer may be prepared by dissolving the PPO in one or more of the monomers polymerized to form the styrenic polymer and polymerizing the resulting solution in the pres... | 08/26/1997 |
| 5610249 | Process for production of styrene or styrene derivative polymer of narrow molecular weight distrubition The present invention provides a process for producing a styrene or styrene derivative polymer of narrow molecular weight distribution, which comprises (co)polymerizing a styrene or styrene derivative monomer using, as the catalyst system, a mixture of a ... | 03/11/1997 |
| 5583190 | Polyvinylidenefluoride having high mechanical properties and high thermochemical stability and the preparation process thereof A polyvinylidenefluoride (PVDF) having high mechanical properties both at room temperature and at high temperatures, having very good processability and high thermochemical resistance to dehydrofluorination, is prepared by means of a polymerization proces... | 12/10/1996 |
| 5574200 | Initiator suspensions, their preparation and use A process for the preparation of an aqueous suspension of a solid free-radical forming initiator, a plant for the preparation, an initiator suspension and use of the suspension in polymerization of ethylenically unsaturated monomers. The process for the p... | 11/12/1996 |
| 5416157 | Process for improving mechanical shear stability of acrylic enteric polymers Provided is a process useful for making acrylic polymers of methacrylic acid having improved shear stability. The process provides polymers useful as enteric coatings for medicaments having improved coating efficiency of pharmaceutical forms. Also provide... | 05/16/1995 |
| 5401804 | Polymerization process and toner compositions therefrom Disclosed is a free radical polymerization process for the preparation of a thermoplastic resin or resins comprising heating a mixture of a free radical initiator, a stable free radical agent, and at least one polymerizable monomer compound to form a ther... | 03/28/1995 |
