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| Number | Title | Issue Date |
| 7282548 | Process for production of high-isoprene butyl rubber The present invention relates to a continuous process for producing polymers at conversions ranging from 50% to 95% having a Mooney viscosity of at least 25 Mooney-units and a gel content of less than 15 wt. % containing repeating units derived from at least one iso... | 10/16/2007 |
| 7157537 | α-Halogenated acid esters with polyvalent alcohols as atom transfer radical polymerization initiators The invention relates to α-halocarboxylic acid esters of polyhydric, at least trihydric, alcohols, which can be used as initiators for ATRP. Using those initiators it is possible to prepare block copolymers having branched structures. ... | 01/02/2007 |
| 7087696 | Uv-curable epoxy acrylates Epoxy acrylates of the formulae (A), (B) and epoxy acrylate mixtures comprising at least one of the compounds (A) or (B) are novel and find use in coating materials or adhesives featuring high UV stability ... | 08/08/2006 |
| 6969746 | Process for the preparation of ethylene copolymers, and their use as additives to mineral oil and mineral oil distillates Process for the preparation of ethylene copolymers, and their use as additives to mineral oil and mineral oil distillates. The invention relates to a process for the preparation of terpolymers of ethylene and at least 2 further olefinically unsaturated compou... | 11/29/2005 |
| 6825290 | Process for the preparation of latices using block copolymers as surfactants A subject-matter of the present invention is a process for the preparation of a latex by radical aqueous emulsion polymerization in the presence of at least one ethylenically unsaturated monomer, of at least one radical polymerization initiator and of at least one s... | 11/30/2004 |
| 6800709 | Method of preparing polymer particles having narrow particle size distribution A method has been described of preparing monodisperse polymer particles by free radical polymerization or copolymerization of hydrophobic monomers in a water-based system in the presence of cyclodextrin, characterized in that said free radical polymerization is perf... | 10/05/2004 |
| 6777518 | Medical adhesive composition and adhesive tape or sheet using the composition The present invention provides a medical adhesive composition containing a copolymer obtained by copolymerization of a monomer mixture containing an acrylic acid alkyl ester having C4-C12 alkyl group, a (meth)acrylic acid, and a methacrylic acid alkyl ester having C... | 08/17/2004 |
| 6765079 | LIQUID CRYSTALLINE POLYMER FILMS OF POLYMERS OF HAVING AZOBENZENE MESOGENIC GROUPS IN CROSS LINKED NETWORK STRUCTURES, PROCESS FOR THE PREPARATION THEREOF, POLYMERS AND NOVEL MONOMERS HAVING AZOBENZENE MESOGENS Novel cross linked polymer films prepared from poly4-[(4-cardanylazo]benzoic acid and poly4-[(4-acryloylcardanylazo]benzoic acid are disclosed. The invention also relates to novel monomers 4-[(4-cardanylazo] benzoic acid and 4-[(4-acryloylcardanylazo] benzoic acid a... | 07/20/2004 |
| 6673886 | High refractive index hydrogel compositions for ophthalmic implants Optically transparent, high refractive index hydrogels and intraocular lenses fabricated therefrom. The preferred hydrogels have a refractive index of 1.45 or above and a water content of approximately 5 to 30 percent by weight.... | 01/06/2004 |
| 6667368 | Amino acid functionalized polymers for graft copolymerizations Amino acid functionalized polymers useful for graft copolymerization prepared by reacting a mixture containing, for chain transfer, a thio-substituted amino acid and an ethylenically unsaturated monomer.... | 12/23/2003 |
| 6657030 | High refractive index hydrogel compositions for ophthalmic implants Optically transparent, high refractive index hydrogels and intraocular lenses fabricated therefrom. The preferred hydrogels have a refractive index of 1.45 or above and a water content of approximately 5 to 30 percent by weight.... | 12/02/2003 |
| 6635731 | 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.... | 10/21/2003 |
| 6635732 | 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.... | 10/21/2003 |
| 6583252 | Pressure sensitive adhesives based on polymers of multistage construction A polymer composed overall of from 50 to 99.98 % by weight of C1 -C12 alkyl (meth)acrylate a), from 0.02 to 10 % by weight of a vinylaromatic compound b), from 0 to 10 % by weight of an ethylenically unsaturated acid ... | 06/24/2003 |
| 6517993 | Copolymer, photoresist composition, and process for forming resist pattern with high aspect ratio A novel copolymer includes a repeating unit (A) represented by, for example, Formula (I) below, and a repeating unit (B) derived from an unsaturated carboxylic anhydride. The novel copolymer is suitable for the preparation of a photoresist composition tha... | 02/11/2003 |
| 6509424 | Process for the preparation of ethylene copolymers, and their use as additives to mineral oil and mineral oil distillates The invention relates to a process for the preparation of terpolymers of ethylene and at least 2 further olefinically unsaturated compounds by polymerization in a tubular reactor fitted with at least one side branch, wherein the fresh monomer components, ... | 01/21/2003 |
| 6423806 | Acrylic monomer composition, acrylic copolymer, and heat resistant resin A heat resistant resin is formed by heating an acrylic monomer composition prepared by copolymerising an acrylic monomer represented by general formula (1) with another monomer that is copolymerisable with the acrylic monomer, the acrylic monomer composit... | 07/23/2002 |
| 6417303 | Substantially linear copolymers The invention is directed towards substantially linear copolymers formed using a metal complex having the formula LMX1 X2. L is a bidentate nitrogen-containing ligand with more than 2 nitrogens. M is copper, silver, or gold. X1 | 07/09/2002 |
| 6388034 | Metal adhesive compositions and method of bonding articles therewith An adhesive composition for metals including an unsaturated thiirane compound having at least one thiirane group bonded with a saturated carbon atom and having at least one olefin-type double bond is provided. The composition is useful for adhesion of nob... | 05/14/2002 |
| 6372815 | Ophthalmic lenses and compositions, and methods for producing same Ophthalmic lenses, such as corneal contact lenses, include a lens body made of a composition including a lens body made of a composition including a first crosslinked polymer material which is water swellable, and a second polymeric material, other than t... | 04/16/2002 |
| 6350816 | Process for synthesis of resins containing unsaturations of the (meth) acrylic type to be cured by radiation or heat and used for powder paints Resins comprising (meth)acrylic unsaturations are obtained by reacting functional groups of unsaturated monomers without solvents at temperatures above 150° C. and under controlled heat exchange, while maintaining intact their unsaturations, with functio... | 02/26/2002 |
| 6329485 | High refractive index hydrogel compositions for ophthalmic implants Optically transparent, high refractive index hydrogels and intraocular lenses fabricated therefrom. The preferred hydrogels have a refractive index of 1.45 or above and a water content of approximately 5 to 30 percent by weight.... | 12/11/2001 |
| 6284854 | Polymeric surface coatings A non-crosslinked biocompatible polymer is formed from a radical polymerisable ethylenically unsaturated zwitterionic monomer containing a sulpho-betaine zwitterionic group and a radical polymerisable ethylenically unsaturated comonomer containing a hydro... | 09/04/2001 |
| 6281319 | 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.... | 08/28/2001 |
| 6280713 | Nail varnish containing microgels The invention relates to novel microgel-containing essentially organic solvent nail varnishes. The microgels are particularly acrylic microgels. The invention also relates to the use of these microgels for modifying the physical properties of an essentially or... | 08/28/2001 |
| 6156858 | Stable free radical polymerization processes A process for the preparation of polymer comprising heating a mixture comprised of a free radical initiator, a stable free radical agent, a base selected from the group consisting of inorganic bases and organic bases, and at least one polymerizable monome... | 12/05/2000 |
| 5977278 | Polymers formed from allylic chain transfer agents The present invention relates to polymers having the formula: ##STR1## wherein: M, Q, X, Y, Z, R3 and R4 are as defined in the text.... | 11/02/1999 |
| 5869583 | Process for the controlled polymerization or copolymerization of (meth)acrylic and vinyl monomers and products thus obtained The process for the controlled radical (co)polymerization of (meth)acrylic and/or vinyl monomers is characterized in that the bulk, solution, emulsion or suspension polymerization or copolymerization is carried out, at a temperature at which can fall to 0... | 02/09/1999 |
| 5567788 | Liquid resin-forming composition and two-package system for providing the composition A liquid resin-forming composition contains a polyether-ene such as a polyallyl glycidyl ether, a free radical-polymerizable monomer such as an acrylate ester, a free radical initiator such as an organic peroxide and/or an organic hydroperoxide and a prom... | 10/22/1996 |
| 5393608 | Non-silicone release polymer A non-silicone release material for use with pressure sensitive adhesives, which contains a copolymer of: (1) an acrylate ester of the formula I: ##STR1## wherein x ranges from about 30 to about 50; and (2) at least one comonomer selected from a viny... | 02/28/1995 |
| 5350822 | High refractive index plastic lens composition A plastic optical lens composition comprising about 40-60 wt% of monomer A, which is a hi-functional 3,9-divinylspirobi(m-dioxane); about 60-40 wt% of monomer B, which is either styrene or chlorostyrene; maleic acid di-allyl ester, the amount thereof is a... | 09/27/1994 |
| 5132384 | Optical material of low specific gravity and excellent impact resistance, optical molding product using the optical material and manufacturing method thereof The present invention discloses an optical material having excellent transparency, impact resistance and heat resistance and having a low specific gravity and a high refractive index comprising a resin obtained by radical polymerization of specific difunc... | 07/21/1992 |
| 5115059 | Terpolymers of alkyl acrylates or methacrylates, an olefinically unsaturated homo or heterocyclic-nitrogen compound and an allyl acrylate or methacrylate Terpolymers having enhanced pour point depressant properties are disclosed which comprise (1) an alkyl ester of unsaturated monocarboxylic acid, (2) an olefinically unsaturated homo or heterocyclic-nitrogen compound, and (3) an allyl acrylate or methacryl... | 05/19/1992 |
| 5028677 | Novel macromonomer compositions Novel compositions of homopolymers and copolymers containing an olefinic polymerizable end group wherein the monomeric units comprise methacrylate, acrylate, acrylic acid, styrene, vinyl esters, acrylonitrile, methacrylonitrile, vinyl halides, vinylidene ... | 07/02/1991 |
| 4980435 | Process for producing terpolymers of alkyl acrylates or methacrylates, an olefinically unsaturated homo or heterocyclic-nitrogen compound and an allyl acrylate or methacrylate or perfluoroalkyl ethyl acrylates or methacrylates Terpolymers having enhanced pour point depressant properties are disclosed which comprise (1) an alkyl ester of unsaturated monocarboxlic acid, (2) an olefinically unsatured homo or heterocyclic-nitrogen compound, and (3) an allyl acrylate or methacrylate... | 12/25/1990 |
| 4980432 | Anionic (co)polymerization using an arylmethide initiator Process for the preparation of polymers by anionic (co)polymerization of ethylenically unsaturated organic monomers in the presence of an arylmethide initiator of the following general structure: ##STR1## wherein: X+ represents a cation; Y... | 12/25/1990 |
| 4950733 | Capryloyloxyalkyl acrylates, their polymers and copolymers and the method for preparation thereof The invention pertains to capryloyloxyalkyl acrylates of the general formula CH2 .dbd.CH--CO--O--R--O--CO--(CH2)6 --CH3, where R is an alkylene group with 2 to 6 carbon atoms, their polymers and copolymers containing... | 08/21/1990 |
| 4912186 | Acrylic rubber, acrylic rubber composition and cured rubber article thereof An acrylic rubber obtainable by copolymerizing a monomer mixture of: (A) 70 to 99.99% by weight of at least one compound selected from the group consisting of alkyl acrylates and alkoxyalkyl acrylates, (B) 0.01 to 10% by weight of at least one compound represented ... | 03/27/1990 |
| 4889900 | Preparation of alkyl methacrylate monomers for anionic polymerization A process is disclosed for treatment of alkyl methacrylate monomers for subsequent polymerization by an anionic initiator to produce a polymer with a molecular weight distribution between about 1.20 and about 1.01. The process involves treatment of the mo... | 12/26/1989 |
| 4833223 | High molecular weight polystyrene and method A method for producing a high molecular weight polystyrene comprises polymerizing styrene monomer and from about 0.01 to about 2.0 parts by weight per 100 parts by weight total monomer of a polyfunctional monomer in an emulsion polymerization medium. Pref... | 05/23/1989 |
