Polymer Derived From Methyl Acrylate Or Methyl Methacrylate Patents (Class 526/329.7)
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Patent number: 6323259Abstract: The present invention is directed to an acrylic resin composition obtained by adding a non-crosslinked polymer powder having a bulk density within the range from 0.1 to 0.7 g/ml, an oil absorption based on linseed oil within the range from 60 to 200 ml/100 g and a degree of swelling by methyl methacrylate of 16-fold or more as a thickening agent to acrylic syrup; and acrylic premix obtained by mixing an inorganic filler with this composition; and acrylic premix obtained by extruding constituent components by a kneading extruder to continuously form the mixture; and a method for producing an acrylic artificial marble in which these acrylic premixes are cured.Type: GrantFiled: October 19, 1998Date of Patent: November 27, 2001Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Yukihiro Ikegami, Seiya Koyanagi, Yuichiro Kishimoto, Yoshihito Nakahara
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Patent number: 6323164Abstract: Polyalkyl (meth)acrylate copolymers comprising from about 12 to about 18 weight percent methyl methacrylate; from about 75 to about 85 weight percent of a C10-C15 alkyl (meth)acrylate; and from about 2 to about 5 weight percent of a nitrogen-containing dispersant monomer provide excellent low temperature properties to lubricating oils.Type: GrantFiled: November 1, 2000Date of Patent: November 27, 2001Assignee: Ethyl CorporationInventors: Gregory P. Liesen, Sanjay Srinivasan
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Patent number: 6312867Abstract: A novel ester compound having an exo-form 2-alkylbicyclo[2.2.1]heptan-2-yl group as the protective group is provided as well as a polymer comprising units of the ester compound. The polymer is used as a base resin to formulate a resist composition having a higher sensitivity, resolution and etching resistance than conventional resist compositions.Type: GrantFiled: November 1, 1999Date of Patent: November 6, 2001Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Takeshi Kinsho, Tsunehiro Nishi, Hideshi Kurihara, Koji Hasegawa, Takeru Watanabe, Osamu Watanabe, Mutsuo Nakashima, Takanobu Takeda, Jun Hatakeyama
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Patent number: 6313249Abstract: Disclosed is a method for the preparation of an organopolysiloxane-grafted graft copolymer of a carbon-carbon backbone chain structure which is free from the troubles due to emission of an irritative odour and instability in storage. The method comprises the steps of copolymerizing a (meth)acryloxyalkyl-terminated organopolysiloxane compound with (meth)acrylic acid or an alkyl (meth)acrylate, optionally, together with a long chain-alkyl (meth)acrylate and/or a (meth)acryloxy-terminated polyoxyalkylene compound in a solution polymerization process to give a polymer solution and subjecting the polymer solution to a catalytic hydrogenation treatment so as to completely eliminate any unpolymerized acrylic compounds.Type: GrantFiled: March 30, 2000Date of Patent: November 6, 2001Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Tetsuo Nakanishi, Ichiro Ono
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Patent number: 6309790Abstract: Polymers are provided having the following formulas I and II: Polymers of the present invention can be used to provide an anti-reflective coating (ARC) material useful for submicrolithography processes using 248 nm KrF, 193 nm ArF and 157 nm F2 lasers. The polymers contain chromophore substituents which exhibit sufficient absorbance at wavelengths useful for such submicrolithography process. The ARC prevents back reflection from the surface of or lower layers in the semiconductor devices and solves the problem of the CD being altered by the diffracted and reflected light from such lower layers.Type: GrantFiled: February 7, 2000Date of Patent: October 30, 2001Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Min-Ho Jung, Sung-Eun Hong, Ki-Ho Baik
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Publication number: 20010034428Abstract: The invention relates to a gelling aqueous composition comprising block copolymers containing at least one water-soluble block and at least one block predominantly hydrophobic in nature, and forming a viscoelastic gel.Type: ApplicationFiled: February 20, 2001Publication date: October 25, 2001Inventors: Mathias Destarac, Mathieu Joanicot, Roland Reeb
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Patent number: 6306994Abstract: The present invention relates to block copolymer dispersants comprising a hydrophobic block and a hydrophilic block having at least one polymerized monomer including a primary amine functionality. The inventive block copolymer dispersant is used to make aqueous dispersants such as inks that have enhanced paper binding characteristics.Type: GrantFiled: May 14, 1999Date of Patent: October 23, 2001Assignee: E. I. du Pont de Nemours and CompanyInventors: Dennis Scott Donald, Walter Raymond Hertler, Sheau-Hwa Ma
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Patent number: 6300440Abstract: Homopolymers or copolymers of acrylates, homopolymers or copolymers of norbornenes, and copolymers of acrylates with norbornenes, may be prepared by contacting acrylate and/or norbornene monomer reactant under polymerization conditions and in the presence of a solvent with a catalyst system consisting essentially of a Pd(II) dimer component having the formula: [(L)Pd(R)(X)]2, where L is a monodentate phosphorus or nitrogen ligand, X is an anionic group, and R is an alkyl or aryl group.Type: GrantFiled: May 5, 2000Date of Patent: October 9, 2001Assignee: The Penn State Research FoundationInventors: Ayusman Sen, Smita Kacker, April Hennis, Jennifer D. Polley
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Patent number: 6297337Abstract: Improved crosslinked ionic polymers or salts thereof having a soluble polymer fraction of less than about 15 wt %, and methods for making the same. The polymers are useful as bioadhesives, thickeners, emulsifiers, suspending aids, and pharmaceutical controlled release excipients.Type: GrantFiled: May 19, 1999Date of Patent: October 2, 2001Assignee: PMD Holdings Corp.Inventors: Nancy S. Marchant, Simon Hsaio-Pao Yu, Zahid Amjad
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Patent number: 6294623Abstract: The process for producing bead polymers having a mean particle size of 0.5 to 50 &mgr;m and a narrow particle size distribution by polymerisation of monomers dissolved in a solvent that constitutes a precipitation agent for the polymers obtained from these monomers is characterized in that the solvent contains 5 to 3000 ppm of sulfur-free radical interceptors.Type: GrantFiled: December 10, 1999Date of Patent: September 25, 2001Assignee: Agfa-GevaertInventors: Wolfgang Podszun, David Byran Harrison, Frank Louwet
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Patent number: 6291553Abstract: Producing spherical polymers having a weight-averaged average particle diameter of 1 to 50 &mgr;m using a seed/feed process comprising the following steps: a) suspension of a monodisperse spherical seed in an aqueous phase, b) addition of at least one monomer and an initiator, c) polymerization of the monomer, of which there is at least one, wherein the seed consists of a polymer having a comb structure, gives rise to products having a particularly narrow grain size distribution.Type: GrantFiled: October 15, 1999Date of Patent: September 18, 2001Assignee: AGFA-GevaertInventors: David Bryan Harrison, Wolfgang Podszun, Frank Louwet
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Patent number: 6288162Abstract: Preparing pigment preparations by mixing a dyestuff with a monomer and simultaneously polymerizing the monomers in an extruder at elevated temperatures, wherein the following steps are carried out: (A) introducing continuously into an extruder (a) from 40 to 90% by weight of a pigment, (b) from 60 to 10% by weight of a monomer or a monomer mixture, and (c) from 0.Type: GrantFiled: March 12, 1999Date of Patent: September 11, 2001Assignee: CIBA Specialty Chemicals Corp.Inventors: Johannes Leugs, Harald Marinus Alexander Heere, Adrianus Hendrikus Van Rooijen
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Patent number: 6288190Abstract: The invention relates to reactive polysols with a reactive monomer portion which is polymerized during thermal coating. The polysols exhibit good mechanical properties. A monofunctional (meth)acrylate monomer of formula (1) is used as reactive monomer component.Type: GrantFiled: May 8, 2000Date of Patent: September 11, 2001Assignee: Roehm GmbHInventors: Volker Kerscher, Thomas Suefke
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Publication number: 20010016637Abstract: An enolate functionalised reaction intermediate of general formula (I), wherein X is an alkyl group; Z is selected from the group consisting of alkyl, hydrogen, halogen, alkoxy, thiol, aryloxy or ester; n is an integer and is at least one; Y is alkyl or H; the tetradentate ligand around the Al is optionally substituted. Also claimed is a process for the preparation of the enolate functionalised reaction intermediate and its reaction with a vinylic monomer and a Lewis acid to produce the corresponding vinylic polymer.Type: ApplicationFiled: December 29, 2000Publication date: August 23, 2001Inventors: Paul Alexander Cameron, Vernon Charles Gibson, Derek John Irvine
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Publication number: 20010016638Abstract: A polymerization process for the preparation of vinylic polymers from the corresponding vinylic monomers which process comprises the step of reacting a vinylic monomer in the presence of a catalyst system comprising a) a compound of general formula (I) where M is any metal capable of coordinating to an enolate or delocalized enolate-like species; B1, B2, B3 and B4 are chosen from nitrogen, oxygen, sulphur or phosphorus containing moieties wherein each of said nitrogen, oxygen, sulphur or phosporus is linked to at least one carbon atom of an organic group and to M; X1 is selected from the group consisting of alkyl, H, halogen, alkoxy, thiol aryloxy, ester, b) a metal, complex of general formula (II) where A is selected from the group consisting of nickel, iron, cobalt, chromium, manganese, titanium, zirconium, vanadium and the rare earth metals; L1, L2, L3 and L4 are ligands and c) a Lewis acid of general formula (III) wherein at least one of W, Y or Z is capable of forming a co-ordination bond with A and theType: ApplicationFiled: December 29, 2000Publication date: August 23, 2001Inventors: Paul Alexander Cameron, Vernon Charles Gibson, Derek John Irvine
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Patent number: 6277940Abstract: There is provided a material for a soft intraocular lens, which has excellent transparency and flexibility, can be inserted from a small incision and has an high refractive index independent on a water content. The material comprises (A) 5-25 % by weight of acrylate containing an aromatic ring, (B) 50-90 % by weight of 2-hydroxyethyl (meth)acrylate, and (C) 5-45 % by weight of a (meth)acrylate monomer having the coefficient of water absorption of the homopolymer thereof of not more than 30 % by weight, except for (A) acrylate containing an aromatic ring and (B) 2-hydroxyethyl (meth)acrylate.Type: GrantFiled: February 11, 1999Date of Patent: August 21, 2001Assignee: Menicon Co. LtdInventors: Kazuharu Niwa, Tatsuya Ojio, Toru Kawaguchi
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Patent number: 6274688Abstract: A vinyl polymer which has at least one terminal functional group per molecule and has a ratio of weight average molecular weight to number average molecular weight of less than 1.8 as determined by gel permeation chromatography, said terminal functional group being a crosslinking silyl group, an alkenyl group, or a hydroxyl group. Curable compositions containing this vinyl polymer is easy to handle.Type: GrantFiled: July 28, 1998Date of Patent: August 14, 2001Assignee: Kaneka CorporationInventors: Yoshiki Nakagawa, Kenichi Kitano, Masato Kusakabe
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Patent number: 6265499Abstract: A process for producing a shaped product, which comprises polymerizing a mixture comprising a radical scavenger, a polymerization initiator and a radical polymerizable monomer to obtain a partially polymerized mixture having the conversion of the monomer into the polymer of from 5 to 90 wt %, filling the partially polymerized mixture in a predetermined cavity and then applying polymerization energy to complete polymerization.Type: GrantFiled: November 27, 1998Date of Patent: July 24, 2001Assignee: Menicon Co., Ltd.Inventors: Haruko Nagino, Ichiro Ando
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Patent number: 6262213Abstract: Anionic polymerization is used for the preparation of reaction mixtures comprising homopolymers, copolymers or block copolymers, and of homopolymers, copolymers and block copolymers which comprise acrylates or methacrylates or acrylates and methacrylates, wherein olefinically unsaturated compounds which are not acrylate or methacrylate derivatives are employed as solvent or as solvent component.Type: GrantFiled: June 8, 1999Date of Patent: July 17, 2001Assignee: BASF AktiengesellschaftInventors: Stephan Jüngling, Hermann Gausepohl, Volker Warzelhan, Graham Edmund Mc Kee, Michael Fischer
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Patent number: 6262212Abstract: A process of manufacturing a poly(dimethylaminoethyl(meth)acrylate) comprising polymerizing dimethylaminoethyl(meth)acrylate in water and in the presence of sufficient acid to form a solution having a pH of less than 6. The polymer is made in an aqueous medium and with a free radical initiator. The polymer is useful as a foam booster in a variety of formulations and applications.Type: GrantFiled: February 4, 1999Date of Patent: July 17, 2001Assignee: Rhodia Inc.Inventors: Dominic W. K. Yeung, Richard E. Rice
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Publication number: 20010006226Abstract: To sufficiently stabilize a hydroxyalkyl (meth)acrylate in spite of its easily polymerizable property, a hydroxyalkyl saturated-carboxylate and/or alkylene glycol as well as a phenol compound is added thereto.Type: ApplicationFiled: December 1, 2000Publication date: July 5, 2001Applicant: Nippon Shokubai Co., Ltd.Inventors: Tokumasa Ishida, Yasuhiro Shingai, Masatoshi Ueoka
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Patent number: 6255261Abstract: Poly (meth) acrylate copolymers comprising from about 5 to about 60 weight percent of a C11-C15 alkyl (meth) acrylate; and from about 95 to about 40 weight percent of a C16-C30 alkyl (meth) acrylate provide excellent low temperature properties to lubricating oils.Type: GrantFiled: September 22, 1999Date of Patent: July 3, 2001Assignee: Ethyl CorporationInventors: Gregory P. Liesen, Tze Chi Jao, Shoutian Li
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Patent number: 6255407Abstract: The invention relates to an adhesive comprising a polymer having the following features: a polymeric backbone, alkyl, aryl and/or alkenyl groups attached to the backbone by way of ester linkages, alkyl and/or aryl spacer groups attached to the backbone by way of ester linkages, an open-chain and/or cyclic silicone group and/or silane group is attached to the spacer by means of an Si—C bond, an ethylene group is attached to the silicone and/or silane group by means of an Si—C bond, the ethylene group in turn is connected to a second silicone group which comprises M, D, T and/or Q silicone units and comprises at least one vinyl group attached to Si. The adhesive of the invention is stable even under moist conditions and ensures good promotion of adhesion between a polymer and an organosilicon elastomer.Type: GrantFiled: October 13, 1999Date of Patent: July 3, 2001Assignee: Ernst Muhlbauer KGInventor: Stephan Neffgen
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Patent number: 6251962Abstract: A Process for the selective preparation acrylate- or methacrylate-homo- or acrylate- or methacrylate-co-oligomers with a weight average molecular weight (Mw) from 1000 to 20000, a polydispersity≦3 and a conversion of the monomers to polymers greater than or equal to 70%, or for the selective preparation of polyvinylacetate and its hydrolysis product polyvinylalcohol with a weight average molecular weight (Mw) from 1000 to 25000, a polydispersity≦3 and a conversion of the monomers to polymers greater than or equal to 70%, is characterized in that a mixture of the corresponding monomers is irradiated in the presence of a specific photoinitiator or photoinitiator mixture at a temperature from −20 to 70° C. in an inert solvent or inert solvent mixture, with light of a wavelength from 305 to 450 nm, wherein the contents of monomers in the reaction mixture is up to 70%.Type: GrantFiled: August 16, 1999Date of Patent: June 26, 2001Assignee: Ciba Specialty Chemicals CorporationInventor: Vincent Desobry
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Patent number: 6248846Abstract: A polymerizable acrylic composition comprises: (a) at least one acrylic monomer; (b) an effective amount of an organoborane amine complex having the structure: wherein: R1 is an alkyl group having 1 to 10 carbon atoms; R2 and R3 are independently selected from phenyl-containing groups and alkyl groups having 1 to 10 carbon atoms; R4 is selected from the group consisting of CH2CH2OH and (CH2)xNH2 wherein x is an integer greater than 2; R5 is hydrogen or an alkyl group having 1 to 10 carbon atoms; and the nitrogen atom to boron atom ratio is about 1:1 to 1.5:1; and (c) an effective amount of an acid for initiating polymerization of the acrylic monomer. The polymerizable acrylic compositions are especially useful for bonding low surface energy substrates.Type: GrantFiled: October 14, 1999Date of Patent: June 19, 2001Assignee: 3M Innovative Properties CompanyInventors: Jury V. Zharov, Jury N. Krasnov
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Publication number: 20010003770Abstract: A resin composition for an aqueous paint containing different phase structure emulsion particles obtained by multi-stage emulsion polymerization as a binder, wherein the different phase structure emulsion particles have an outermost phase formed by an emulsion polymer of an ethylenic unsaturated monomer, having a glass transition temperature of from −50° C. to 10° C.Type: ApplicationFiled: December 8, 2000Publication date: June 14, 2001Applicant: Dai Nippon Toryo Co., Ltd.Inventors: Masayoshi Okubo, Shinya Sakaguchi, Atsushi Takamatsu, Hiroharu Sasaki, Kazuyoshi Tsuneta
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Publication number: 20010003129Abstract: Preparing pigment preparations by mixing a dyestuff with a monomer and simultaneously polymerizing the monomers in an extruder at elevated temperatures, wherein the following steps are carried out:Type: ApplicationFiled: March 12, 1999Publication date: June 7, 2001Inventors: JOHANNES LEUGS, HARALD MARINUS ALEXANDER HEERE, ADRIANUS HENDRIKUS VAN ROOIJEN
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Patent number: 6221991Abstract: Polar polymers having the following formula: FG-(Q)d-Rn-Z-J-[A(R1R2R3)]x (I) wherein FG is H or a protected or non-protected functional group; Q is a polar hydrocarbyl group derived by incorporation of a polar compound selected from group consisting of esters, amides, and nitrites of acrylic and methacrylic acid, and mixtures thereof; d is an integer from 10 to 2000; R is a saturated or unsaturated hydrocarbyl group derived by incorporation of a compound selected from the group consisting of conjugated diene hydrocarbons, alkenylsubstituted aromatic hydrocarbons, and mixtures thereof; n is an integer from 0 to 5; Z is a branched or straight chain hydrocarbon group which contains 3-25 carbon atoms, optionally containing aryl or substituted aryl groups; J is oxygen, sulfur, or nitrogen; [A(R1R2R3)]x is a protecting group, in which A is an element selected from Group IVa of the Periodic Table of Elements; R1, R2, and R3 are each independently selected from the group consistingType: GrantFiled: June 30, 1998Date of Patent: April 24, 2001Assignee: FMC CorporationInventors: Robert J. Letchford, James A. Schwindeman, Conrad W. Kamienski, Roderic P. Quirk
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Patent number: 6214942Abstract: The invention concerns a process for producing polymethacrylate moulding compounds, which have high thermal dimensional stability and high stability with respect to thermal decomposition, by the radical polymerization of methylmethacrylate monomers and optionally comonomers in at least two reactors operated successively, ensuring a high degree of blending. The process is characterized in that: a) a first reactor is operated at a temperature of less than 120° C.; and b) a second reactor or further successive reactors is/are operated in a temperature range of more than 130° C. and at most 200° C.Type: GrantFiled: September 14, 1998Date of Patent: April 10, 2001Assignee: Roehm GmbHInventors: Werner Siol, Heinz Vetter, Michael Wicker
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Patent number: 6214925Abstract: A polymer which is composed of from 50 to 99.98% by weight of a C1-C12 alkyl (meth)acrylate a), from 0.02 to 1.8% by weight of a vinyl-aromatic compound b), from 0 to 10% by weight of an ethylenically unsaturated acid or an ethylenically unsaturated acid anhydride c), and from 0 to 40% by weight of other monomers d), the percentages by weight being based on the polymer.Type: GrantFiled: February 9, 1999Date of Patent: April 10, 2001Assignee: BASF AktiengesellschaftInventors: Bernhard Schuler, Gerhard Auchter, Johannes Türk, Rik Noordijk, Johannes Dobbelaar, Reinhard Bächer, Wolfgang Hümmer
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Patent number: 6190767Abstract: A pressure-sensitive adhesive prepared by emulsifying dispersing a monomer mixture containing at least 50% by weight, based on the total weight of the monomer mixture, of a long-chain alkyl (meth)acrylate with the alkyl having 9 to 13 carbon atoms in an aqueous surfactant solution to bring the monomer mixture to fine particles having an average diameter of not more than 2.0 &mgr;m and polymerizing the monomer mixture in the presence of a water-soluble polymerization initiator can provide a pressure-sensitive adhesive which possesses excellent moisture resistance, water resistance, weather resistance, and adhesion to a nonpolar adherend, such as a polyolefin plastic, and, at the same time, well-balanced tackiness properties.Type: GrantFiled: February 9, 1998Date of Patent: February 20, 2001Assignee: Toyo Ink Manufacturing Co., Ltd.Inventors: Yoshinobu Ishikawa, Hiroaki Kitayama, Masaki Nomura