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| Number | Title | Issue Date |
| 7781552 | Styrene copolymer and process for producing the same A styrene resin excellent in heat resistance, weatherability, melt stability, and suitability for recycling. It is a styrene copolymer obtained by living polymerization (Mw/Mn=1.6-4.0) which comprises isopropenylaromatic units (A) contained in ... | 08/24/2010 |
| 7772345 | Modified novolak resin for use as tackifier The invention is related to a hydrocarbylphenol-formaldehyde linear novolak resin modified with a vinyl monomer. A modified, hydrocarbylphenol-formaldehyde linear novolak resin of the invention is prepared by reacting a hydrocarbyl phenol-formaldehyde linear novolak... | 08/10/2010 |
| 7425601 | 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,... | 09/16/2008 |
| 7385018 | Hydrogenated copolymer, process for producing the same, and hot-melt adhesive composition containing the same The present invention involves a hydrogenated copolymer obtained by hydrogenating a copolymer having a softening point falling in a range of 45 to 55° C. determined by a ball & ring method, wherein the hydrogenated copolymer has a softening point of 85 to 95° C. d... | 06/10/2008 |
| 7385009 | Process for the preparation of hydroxy-vinyl-aromatic polymers or copolymers by anionic or controlled radical polymerization The instant invention relates to a process for the preparation of hydroxy-vinyl-aromatic polymers in particular 4-hydroxystyrene polymers or copolymers by anionic or controlled radical polymerization of the respective monomer, wherein the hydroxy functionality is bl... | 06/10/2008 |
| 7335712 | Process of producing a siloxy-functionalized polymer This invention relates to siloxy-functionalized polymers having the silicon of the siloxy group directly bonded to the end of a polymer chain through one or more carbon atoms, processes of producing the polymers, and initiators used to prepare the polymers. The poly... | 02/26/2008 |
| 7323528 | Block copolymers containing functional groups The present invention provides a block copolymer of styrene and an unsaturated cyclic anhydride, such as maleic anhydride, a process for making a copolymer using controlled free radical polymerization in which certain parameters are adjusted to control the microstru... | 01/29/2008 |
| 7321016 | Method of producing styrene polymers using high speed catalytic dispersion technology Provided is a method of preparing styrene polymers, the method comprising: homogeneously mixing a styrene monomer; a cocatalyst mixture of Group 13 metal-containing organic metal compound cocatalyst and an inert organic solvent; and a catalyst mixture of a metalloce... | 01/22/2008 |
| 7276195 | Maleimide based high temperature shape memory polymers Shape memory polymers prepared by copolymerizing two monomers, which each separately produce polymers characterized by different glass transition temperatures in the presence of a multi-functional monomer whereby the copolymer formed is cross-linked during the polym... | 10/02/2007 |
| 7205370 | Polymeric nano-particles of flower-like structure and applications A flower-like nano-particle composition including a poly (alkenylbenzene) core and a poly (conjugated diene) or a poly(alkylene) surface layer is provided. The nano-particles have a mean average diameter less than about 100 nm and are substantially free of chain end... | 04/17/2007 |
| 7193024 | Alpha-Olefin based branched polymer A polymer comprising units (1) derived from an alpha-olefin having at least 3 carbon atoms (1′), units (2) derived from divinylbenzene or C1-10hydrocarbyl substituted derivatives thereof (2′), and units (3) derived f... | 03/20/2007 |
| 7166240 | Hydrocarbon compounds, materials for organic electroluminescent elements and organic electroluminescent elements An electroluminescent element in which at least one layer containing at least one of novel hydrocarbon compounds with an anthracene ring and a fluorene ring directly bound is held between a pair of electrodes. The compounds can advantageously be used in a luminescen... | 01/23/2007 |
| 7160971 | pH-sensitive methacrylic copolymers and the production thereof The present invention provides novel multi-functional methacrylic copolymers that exhibit cationic pH-sensitive behavior as well as good water solubility under acidic conditions. The copolymers are constructed from tertiary amine methacrylates and poly(ethylene glyc... | 01/09/2007 |
| 7160953 | Polymeric surface coatings A biocompatibilizing process in which a substrate having a surface which bears substrate pendant functional groups is biocompatibilized by coating it with a coating composition containing a polymer formed from a radical polymerizable monomers including a radical pol... | 01/09/2007 |
| 7153902 | High solids emulsions of elastomeric polymers Water-continuous emulsion of elastomeric polymers are disclosed having a solids content of greater than 75%, an average particle size less than 5 μm, and having sufficient stability to produce a stable lower solids emulsion upon dilution with water comprising; an e... | 12/26/2006 |
| 7148296 | Capped poly(arylene ether) composition and process A thermoset composition exhibiting reduced water absorption in the cured state includes an olefinically unsaturated monomer and a capped poly(arylene ether) prepared by the reaction of an uncapped poly(arylene ether) with an anhydride capping agent. The capped poly(... | 12/12/2006 |
| 7141354 | Photo radical generator, photo sensitive resin composition and article The invention provides a radical generator, although being a self-cleavage type initiator, which is capable of suppressing volatilization of low molecular weight decomposition materials at the time of light radiation and post-baking, and leaving no low molecular wei... | 11/28/2006 |
| 7101941 | Method for anionic polymerization of α-methylstyrene Process for preparing homopolymers of α-methylstyrene, or copolymers of α-methylstyrene and comonomers, by anionic polymerization in the presence of an initiator composition, which comprises using an initiator composition in which potassium hydride and at least on... | 09/05/2006 |
| 7091293 | Stereoregular polar vinyl polymers and methods of making the same The polymerization of polar vinyl monomers in the presence of Lewis acids produces stereoregular vinyl polymers. Polar vinyl monomers may be mixed with Lewis acids to form associations or complexes between the monomers and Lewis acids. The mixtures or monomer-Lewis ... | 08/15/2006 |
| 7087692 | Salt and heat sensitive, substantive UV-absorbing polymers Substantive UV-absorbing, water-soluble, cationic polymers containing cinnamidoalkylamines and benzamidoalkylainines, with ‘inverse temperature dependant solubility’ are described in the present invention. They are water-soluble at ambient conditions and yet the... | 08/08/2006 |
| 7041762 | Polyvalent imprinted polymer and process of preparation thereof The present invention relates to a polyvalent imprinted polymer useful in medicine and biotechnology and to a process for the preparation thereof. More particularly it relates to the said polymer of formula (1) herein below | 05/09/2006 |
| 7001956 | Articles prepared from hydrogenated block copolymers The present invention relates to articles prepared from novel anionic block copolymers of mono alkenyl arenes and conjugated dienes, and to blends of such block copolymers with other polymers. The block copolymers are selectively hydrogenated and have mono alkenyl a... | 02/21/2006 |
| 6903171 | Polymerized cycloolefins using transition metal catalyst and end products thereof Methods for the addition polymerization of cycloolefins using a cationic Group 10 metal complex and a weakly coordinating anion of the formula: [(R′)zM(L′)x(L″)y]b[WCA]d wherein [(R′)... | 06/07/2005 |
| 6900280 | Acid macromonomers and their method of preparation The invention relates to a composition comprising: a) an acid monomer or oligomer of acrylic acid or of an acid derivative of acrylic acid or mixtures thereof; or a mixture of an ethylenically unsaturated monomer or oligomer and an acid monomer or oligomer of acryli... | 05/31/2005 |
| 6894129 | Multinuclear half metallocene catalyst and preparation of styrene polymer using the same The present invention relates to a catalyst for preparing vinyl aromatic polymer and styrene polymerization using the same, and particularly to a transition metal half metallocene catalyst with a novel structure for preparing syndiotactic styrene polymer having high... | 05/17/2005 |
| 6872793 | Ophthalmic and otorhinolaryngological device materials Disclosed are soft, high refractive index device materials having improved strength. The materials contain microphase-separated aliphatic and aromatic domains. ... | 03/29/2005 |
| 6858304 | Preparation of polyindanebisphenols and polymers derived therefrom Novel polyindanebisphenols or PIBPs for the preparation of new and improved thermosetting polymers having the general formula of are provided. Also disclosed are thermoplastic or thermoset compositions prepared using t... | 02/22/2005 |
| 6852821 | Aqueous primary dispersions and coating matters, a method for producing same and the use thereof Aqueous primary dispersions and coating materials comprising dispersed and/or emulsified, solid and/or liquid polymer particles and/or dispersed solid core-shell particles having a diameter≦500 nm preparable by controlled free-radical microemulsion or miniemulsion... | 02/08/2005 |
| 6825308 | Copolymers and preparation thereof The present invention relates to copolymers for applications in medicine and biotechnology and preparation thereof. Copolymers comprises polyvalent N-Acetyl Glucosamine(NAG) in polyvalent form and bind more efficiently to lysozyme than NAG itself. The copolymers exh... | 11/30/2004 |
| 6806337 | Ophthalmic and otorhinolaryngological device materials Disclosed are soft, high refractive index, acrylic device materials having improved strength. The materials contain cross-linked acrylate or methacrylate microspheres. ... | 10/19/2004 |
| 6794465 | Method of preparing an acrylic copolymer The present invention is a method of preparing an acrylic copolymer using as a raw material a monomer mixture comprising 50 mole % or more of a monomer having a polymerizable double bond formed by a carbon atom to which no hydrogen atom is bonded and a carbon atom t... | 09/21/2004 |
| 6759483 | Preparation of homo-, co- and terpolymers of substituted styrenes A novel one-pot cost efficient process for the preparation of homo-, co- and terpolymers of p-hydroxystyrene or substituted p-hydroxystyrene and alkyl acrylates. The process involves polymerization of esters of p-hydroxystyrene (or its substituted analogs), alkyl ac... | 07/06/2004 |
| 6756462 | Method for preparation of anion exchange resins An improved process for preparing anion exchange resins based on the use of a non-agitated plug-flow quench procedure followed by recycle of a portion of the recovered chloromethylation reaction fluids into subsequent chloromethylation reactions is disclosed. The co... | 06/29/2004 |
| 6743878 | Polymeric surface coatings A biocompatibilising process in which a substrate having a surface which bears substrate pendant functional groups is biocompatibilised by coating it with a coating composition containing a polymer formed from a radical polymerisable monomers including a radical pol... | 06/01/2004 |
| 6740724 | Ethylene styrene copolymer with isolated styrene An ethylene styrene copolymer having isolated styrene monomer units separated by 5 or 6 methylene groups as determined by 13C-NMR may be polymerized in the presence of an activator and a transition metal catalyst containing a phosphinimine ligand. ... | 05/25/2004 |
| 6730743 | Rubber composition A rubber composition which is obtained by compounding 100 parts by weight of a rubber component and 3 to 250 parts by weight of an olefin-aromatic vinyl compound copolymer. The rubber composition exhibits an excellent gripping property, an excellent resistanc... | 05/04/2004 |
| 6686124 | Multifunctional polymeric materials and use thereof A multifunctional polymer comprising a polymeric chain having chromophore groups and cross-linking sites is suitable as a resist material and especially as the underlayer for bilayer and top surface imaging strategies. The multifunctional polymer can func... | 02/03/2004 |
| 6649721 | Defoamer and/or deaerator based on oil-in-water dispersions Antifoams and/or deaerators are based on oil-in-water emulsions which contain, in the hydrophobic oil phase, at least one compound effective as an antifoam and/or deaerator and, if required, further components, the oil-in-water emulsions containing from 0... | 11/18/2003 |
| 6649716 | Polymerization of alpha-methylstyrene A process for producing polymers of -methylstyrene uses tin IV chloride as a polymerization initiator. Use of tin IV chloride as an initiator allows polymerization to proceed without purification of the monomer prior to processing. Polymerization c... | 11/18/2003 |
| 6639033 | N-oxyl radicals The present invention provides a process for the free radical polymerization of one or more ethylenically unsaturated monomers, said process comprising polymerizing one or more ethylenically unsaturated monomers in the presence of one or more N-oxyl radic... | 10/28/2003 |
