Interpolymerized With Hydrocarbon Monomer Patents (Class 526/272)
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Patent number: 6132926Abstract: A photoresist including a copolymer prepared from bicycloalkene derivative, maleic anhydride and/or vinylene carbonate, which has molecular weight ranging from about 3,000 to 100,000. The photoresist can be used for submicrolithography employing deep ultra violety as a light source. In addition to being of high etch resistance and thermal resistance, the photoresist has good adhesiveness and can be developed in a TMAH solution.Type: GrantFiled: December 30, 1997Date of Patent: October 17, 2000Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Jae Chang Jung, Cheol Kyu Bok, Ki Ho Baik
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Patent number: 6127499Abstract: A polymeric amphipathic stabilizer is formed of hydrophobic monomer units and hydrophilic monomer units which comprise carboxylic free acid or acid salt units and glycidyl or anhydride units. The glycidyl or anhydride units react onto reactive groups on polymer particles when dispersed in non-aqueous liquid and provide improved stability when the particles are subsequently dispersed in liquid electrolyte.Type: GrantFiled: June 30, 1998Date of Patent: October 3, 2000Assignee: Ciba Specialty Chemicals Water Treatments LimitedInventors: Kenneth Charles Symes, Kishor Kumar Mistry
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Patent number: 6117961Abstract: The present invention provides a process for producing a crosslinkable styrene or styrene derivative polymer having narrow molecular weight distribution by radical polymerization of a styrene or styrene derivative monomer and other comonomer, wherein the polymerization is conducted in the presence of a catalyst system composed of a free radical compound and a radical polymerization initiator. With the present process, a heat- or photo-crosslinkable styrene or styrene derivative polymer having excellent rheology controlling ability and excellent reaction efficiency of a functional group can be obtained.Type: GrantFiled: April 25, 1997Date of Patent: September 12, 2000Assignee: Kansai Paint Co., Ltd.Inventor: Tetsuo Ogawa
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Patent number: 6117416Abstract: This invention relates to a mouthwash composition including a solvent-free, high molecular weight (>1,500,000) uncrosslinked terpolymer of maleic anhydride, a C.sub.1 -C.sub.4 alkyl vinyl ether and isobutylene.Type: GrantFiled: September 15, 1999Date of Patent: September 12, 2000Assignee: ISP Investments Inc.Inventors: William E. Prosise, James F. Curry, Krystyna Plochocka
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Patent number: 6111045Abstract: This invention provides a diene rubber composed of 40 to 99.99% by weight of conjugated diene units, 0.05 to 20% by weight of amino-containing vinyl monomer units, 0.05 to 20% weight of hydroxyl-containing vinyl monomer units, and 0 to 50% by weight of other copolymerizable monomer units, and having a Mooney viscosity (ML.sub.1+4, 100.degree. C.) of 10 to 200. This diene rubber yields a vulcanized rubber showing improvements in heat build-up, tensile strength, abrasion resistance and processability.Type: GrantFiled: June 29, 1998Date of Patent: August 29, 2000Assignee: Nippon Zeon Co. Ltd.Inventors: Yukio Takagishi, Masao Nakamura
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Patent number: 6069206Abstract: Disclosed is an aromatic polycarbonate-styrene polymer resin composition comprising (A) an aromatic polycarbonate, (B) a specific rubber-modified styrene polymer and (C) a compatibility agent which is a copolymer containing an aromatic vinyl monomer and which has a non-uniform distribution with respect to the proportions of component monomers constituting the copolymer, so that the copolymer comprises copolymer molecules having different solubility parameter (SP) values, wherein the difference in SP value between the copolymer molecule having a maximum SP value and the copolymer molecule having a minimum SP value is from 0.4 to 0.6 (cal/cm.sup.3).sup.1/2, and wherein the copolymer has an average SP value of from 10.6 to 11.0 [(cal/cm.sup.3).sup.1/2 ].Type: GrantFiled: December 30, 1997Date of Patent: May 30, 2000Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Hajime Nishihara, Akihiro Watanabe
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Patent number: 6063542Abstract: A polymer having a repeating unit represented by the following general formula I and a chemical amplification positive photoresist composition comprising the copolymer and a photoacid generator. The hydroxy group introduced into the polymer gives a great contribution to the adhesiveness of the composition to substrate and allows the composition to be applied to any substrate. In addition, the photoresist composition is superior in resolution, thermal resistance, etch resistance, and post-exposure storage stability and can be developed without changing the concentration of developing solution.Type: GrantFiled: April 8, 1998Date of Patent: May 16, 2000Assignee: Korea Kumho Petrochemical Co., Ltd.Inventors: Park Joo Hyeon, Kim Ji Hong, Kim Ki Dae, Park Sun Yi, Kim Seong Ju
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Patent number: 6048587Abstract: Radiation-curable resins as well as thermal and electron-beam-curable resins are provided comprising a polymeric backbone having acrylate or vinyl ether substituents and an ionically bonded neutralizing agent such as an aminoacrylate. These resins are hydrophilic and water-dispersible before curing, but resistant to most solvents including water after curing while preserving a hard, strong, adhesive character which makes them suitable for use as coatings and fabrication of three-dimensional structures in a wide variety of applications.Type: GrantFiled: October 1, 1998Date of Patent: April 11, 2000Assignee: Ricon Resins, Inc.Inventor: Tanya Estrin
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Patent number: 6046291Abstract: This invention relates to a dentifrice composition including a solvent-free, high molecular weight (>1,500,000) uncrosslinked terpolymer of maleic anhydride, a C.sub.1 -C.sub.4 alkyl vinyl ether and isobutylene.Type: GrantFiled: June 16, 1998Date of Patent: April 4, 2000Assignee: ISP Investments Inc.Inventors: Huixiang Zhang, Krystyna Plochocka, William E. Prosise
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Patent number: 5959053Abstract: This invention relates to high molecular weight terpolymers of maleic anhydride, C.sub.1 -C.sub.4 alkyl vinyl ethers and isobutylene, and to a solvent-free process for making such terpolymers, which are particularly useful as starting materials for denture adhesives.Type: GrantFiled: August 25, 1998Date of Patent: September 28, 1999Assignee: ISP Investments Inc.Inventor: Krystyna Plochocka
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Patent number: 5945457Abstract: A hemocompatible composition comprising a polymer containing at least one pharmacologic material chemically bonded to a polymer backbone. Such compositions may be obtained by reacting a pharmacologic material with a compound containing a polymerizable group (e.g., an acyl halide) and thereafter either copolymerizing the acylated material with one or more copolymerizable monomers or first irradiating a backbone polymer and thereafter grafting the acylated pharmacologic material onto the irradiated polymer. The resulting products are hemocompatible and may be used in the manufacture of medical devices which come in contact with blood or other bodily fluids. The advantage of chemically bonded pharmacologic materials is that they are not leached out and retain their pharmaceutical effectiveness for a long period of time. The compositions may contain one or more additional pharmacologic materials which are physically admixed with polymers containing bonded pharmacologic materials.Type: GrantFiled: October 1, 1997Date of Patent: August 31, 1999Assignee: A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of ScienceInventors: Nicolai A. Plate, Lev I. Valuev, Lubov D. Uzhinova, Vladimir A. Sinani
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Patent number: 5939506Abstract: This invention relates to high molecular weight terpolymers of maleic anhydride, C.sub.1 -C.sub.4 alkyl vinyl ethers and isobutylene, and to a solvent-free process for making such terpolymers, which are particularly useful as starting materials for denture adhesives.Type: GrantFiled: October 2, 1997Date of Patent: August 17, 1999Assignee: ISP Investments Inc.Inventor: Krystyna Plochocka
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Patent number: 5902869Abstract: Ethylene/(meth)acrylic acid copolymers which have improved melt-thermal stability are described. The copolymers contain an intrachain anhydride unit derived from an additional comonomer which is an anhydride or anhydride forming comonomer, such as maleic anhydride and maleic acid or its monomethyl ester, present at a level of 0.05 to 3.0 weight percent. Measured properties of the terpolymers, other than thermal stability, are about the same as comparable ethylene/(meth)acrylic acid copolymers with no anhydride monomer.Type: GrantFiled: January 9, 1997Date of Patent: May 11, 1999Assignee: E. I. du Pont de Nemours and CompanyInventor: Richard Tien-Hua Chou
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Patent number: 5900470Abstract: Denture adhesive including a solvent-free, high molecular weight terpolymer of maleic anhydride, a C.sub.1 -C.sub.4 alkyl vinyl ether and isobutylene.Type: GrantFiled: June 16, 1998Date of Patent: May 4, 1999Assignee: ISP Investments Inc.Inventors: William E. Prosise, Krystyna Plochocka
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Patent number: 5869547Abstract: An ocular lens material made of a polymer obtained by polymerizing polymerizable components comprising a monomer of the formula (I): ##STR1## wherein R.sup.1 is a group of the formula: ##STR2## wherein R.sup.2 is a C.sub.1-5 alkylene group, and R.sup.3 is a hydrogen atom or a methyl group, or a group of the formula: ##STR3## wherein R.sup.4 is a direct bond or a C.sub.1-5 alkylene group.Type: GrantFiled: December 23, 1997Date of Patent: February 9, 1999Assignee: Menicon Co., Ltd.Inventor: Haruyuki Hiratani
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Patent number: 5859137Abstract: New ethylene/acid copolymer ionomers which contain both (meth)acrylic acid and certain dicarboxylic acid monomers are described. The polymers may be melt processed as readily as ethylene/(meth)acrylic acid dipolymer ionomers, in contrast to ethylene/acid copolymer ionomers containing only dicarboxylic acid monomer derived in-chain acid units. Polymers with typical levels of (meth)acrylic acid and low levels of diacid provide ionomers comparable to existing ionomers, but which have adhesive and polymer blend compatibilizing characteristics, while polymers with higher levels of diacid will exhibit properties which depend on in-chain diacid derived units.Type: GrantFiled: March 25, 1998Date of Patent: January 12, 1999Assignee: E. I. du Pont de Nemours and CompanyInventor: Richard Tien-Hua Chou
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Patent number: 5834088Abstract: A polyamide fibrous substrate having deposited on it an amount of a composition effective to impart stain-resistance comprising a water-soluble or water-dispersible alpha-olefin/maleic anhydride polymer or a mixture of said polymers, and processes for preparing the substrates. The maleic anhydride polymer is used either in hydrolyzed form or in the form resulting from reacting it with a lower alkyl alcohol so as to form an alpha-olefin/maleic acid monalkyl ester polymer.Type: GrantFiled: September 16, 1997Date of Patent: November 10, 1998Assignee: E. I. du Pont de Nemours and CompanyInventor: Engelbert Pechhold
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Patent number: 5756624Abstract: A method of tackifying an adhesive is provided, the improvement comprising the use of a copolymer consisting of monomer units derived monomers consisting of:(A) 10 to 50% by weight of a terpene with no conjugated double bonds,(B) 20 to 50% by weight of a member selected from the group consisting of olefinically unsaturated monocarboxylic acids containing 3 to 5 carbon atoms and anhydrides thereof, and olefinically unsaturated dicarboxylic acids containing 3 to 5 carbon atoms and anhydrides thereof, and(C) 40 to 50% by weight of an ester selected from the group consisting of esters and semiesters of olefinically unsaturated monocarboxylic containing 3 to 5 carbon atoms and esters and semiesters of olefinically unsaturated dicarboxylic acids containing 3 to 5 carbon atoms, with the proviso that the sum total of said monomers is 100% by weight.Type: GrantFiled: November 4, 1996Date of Patent: May 26, 1998Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Arno Behr, Wolfgang Ritter, Hans-Peter Handwerk, Oliver Pietsch
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Patent number: 5733993Abstract: Novel terpolymers are disclosed which comprise the reaction product of a high molecular weight olefin, such as polybutene or polypropylene, with an unsaturated acid reactant, such as maleic anhydride and a di-or polyunsaturated reactant. The terpolymers are useful as dispersants in lubricating oils and fuels and are also used to prepared polysuccinimides and other post-treated additives useful in lubricating oils and fuels.Type: GrantFiled: November 14, 1996Date of Patent: March 31, 1998Assignee: Ethyl CorporationInventors: Daniel Y. F. Yu, Carl A. Mike
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Patent number: 5723557Abstract: Ethylene/(meth)acrylic acid copolymers which have improved melt-thermal stability are described. The copolymers contain an intrachain anhydride unit derived from an additional comonomer which is an anhydride or anhydride forming comonomer, such as maleic anhydride and maleic acid or its monomethyl ester, present at a level of 0.05 to 3.0 weight percent. Measured properties of the terpolymers, other than thermal stability, are about the same as comparable ethylene/(meth)acrylic acid copolymers with no anhydride monomer.Type: GrantFiled: January 9, 1997Date of Patent: March 3, 1998Assignee: E. I. du Pont de Nemours and CompanyInventor: Richard Tien-Hua Chou
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Patent number: 5703186Abstract: Premixed polymers which can serve as base polymers for high-resolution resists are structured from 40 to 99 mole % of a tert. butyl ester of an unsaturated carboxylic acid and 1 to 60 mole % of an anhydride of an unsaturated carboxylic acid.Type: GrantFiled: September 23, 1996Date of Patent: December 30, 1997Assignee: Siemens AktiengesellschaftInventors: Recai Sezi, Horst Borndoerfer, Hellmut Ahne, Siegfried Birkle, Eberhard Kuehn, Rainer Leuschner, Eva Rissel, Michael Sebald
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Patent number: 5700890Abstract: New ethylene/acid copolymer ionomers which contain both (meth)acrylic acid and certain dicarboxylic acid monomers are described. The polymers may be melt processed as readily as ethylene/(meth)acrylic acid dipolymer ionomers, in contrast to ethylene/acid copolymer ionomers containing only dicarboxylic acid monomer derived in-chain acid units. Polymers with typical levels of (meth)acrylic acid and low levels of diacid provide ionomers comparable to existing ionomers, but which have adhesive and polymer blend compatibilizing characteristics, while polymers with higher levels of diacid will exhibit properties which depend on in-chain diacid derived units.Type: GrantFiled: February 28, 1997Date of Patent: December 23, 1997Assignee: E. I. Du Pont de Nemours and CompanyInventor: Richard Tien-Hua Chou
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Patent number: 5658993Abstract: A water-soluble or water-dispersible graft copolymer obtainable by free-radical graft copolymerization of(I) at least one monoethylenically unsaturated monomer onto(II) polymers with a molecular weight of 200-5000 of monoethylenically unsaturated dicarboxylic acids or anhydrides thereofusing from 5 to 2,000 parts by weight of the monomers (I) per 100 parts by weight of grafting base, a process for preparing the graft copolymers and the use of the graft copolymers as additive to phosphate-free or reduced phosphate textile detergents, as dispersants and preventers of deposits in cleaners for hard surfaces and as water-treatment agents for reducing the deposition of scale and the separation out of water hardness in water-conveying systems.Type: GrantFiled: January 30, 1996Date of Patent: August 19, 1997Assignee: BASF AktiengesellschaftInventors: Walter Denzinger, Axel Kistenmacher, Johannes Perner, Angelika Funhoff, Birgit Potthoff-Karl, Hans-Jurgen Raubenheimer
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Patent number: 5654068Abstract: A stain-resist for polyamide textiles comprises blends of maleic anhydride/alpha-olefin polymers with sulfonated phenol-formaldehyde condensation products. The stain-resist blends are water-soluble at low pH, even in the absence of surfactant, and are strongly substantive and more resistant to yellowing than the condensation products.Type: GrantFiled: March 26, 1996Date of Patent: August 5, 1997Assignee: E. I. Du Pont de Nemours and CompanyInventor: Engelbert Pechhold
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Patent number: 5646215Abstract: The invention relates to a functionalized polybutylene polymer which contains at least one unsaturated group in its molecule, said functionalized polybutylene being prepared by reacting (A) an anhydride-functional polybutylene with (B) an allyl-functional compound having at least one hydroxyl-containing group in its molecule.Type: GrantFiled: October 31, 1996Date of Patent: July 8, 1997Assignee: Dow Corning CorporationInventor: Kenneth Michael Lee
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Patent number: 5627259Abstract: The present invention is directed to a process for preparing a polymeric amide which comprises the steps of:(A) reacting a mixture of (i) functionalized hydrocarbon polymer containing ester functional groups comprising at least one member selected from the group consisting of substituted alkyl ester functional groups, the substituted alkyl moiety containing at least one electron withdrawing substituent group, and aryl ester functional groups, the hydrocarbon polymer having a number average molecular weight of at least about 500 prior to functionalization, and (ii) an amine having at least one reactive --NH.sub.2 moiety, for a time and under conditions sufficient to form amide groups; and(B) removing from the mixture during step (A) hydroxyl compound released from the ester functional groups in forming the amide groups.The polymeric amides so produced are useful as fuel additives (e.g., detergents) and lubricating oil additives (e.g., dispersants).Type: GrantFiled: November 28, 1995Date of Patent: May 6, 1997Assignee: Exxon Chemical Patents Inc.Inventors: Warren A. Thaler, Stephen Zushma, Joseph V. Cusumano, David C. Dankworth, William D. Diana, William B. Eckstrom, Jacob I. Emert, Keith R. Gorda, Antonio Gutierrez
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Patent number: 5618884Abstract: Anhydride-functional polymerizable monomers having the structure: ##STR1## and polymers and reactive compositions prepared from these monomers are disclosed. The reactive compositions are especially useful in primer and clearcoat/basecoat applications.Type: GrantFiled: March 1, 1996Date of Patent: April 8, 1997Assignee: The Sherwin-Williams CompanyInventors: Rubing Cai, Thomas W. Yokoyama
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Patent number: 5616668Abstract: Novel copolymers of unsaturated acidic reactants and high molecular weight olefins are useful as dispersants in lubricating oils and fuels and also may be used to prepare polysuccinimides and other post-treated additives useful in lubricating oils and fuels. The ratio of anhydride groups to the hydrocarbon groups in these novel copolymers is at least 1.3.Type: GrantFiled: December 14, 1995Date of Patent: April 1, 1997Assignee: Chevron Chemical CompanyInventors: James J. Harrison, William R. Ruhe, Jr.
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Patent number: 5580995Abstract: Anhydride-functional polymerizable monomers having the structure: ##STR1## and polymers and reactive compositions prepared from these monomers are disclosed. The reactive compositions are especially useful in primer and clearcoat/basecoat applications.Type: GrantFiled: November 8, 1994Date of Patent: December 3, 1996Assignee: The Sherwin-Williams CompanyInventor: Rubing Cai
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Patent number: 5554695Abstract: There are disclosed a styrenic copolymer which comprises at least one structural unit represented by the general formula (I) ##STR1## and a structural unit represented by the general formula (II) ##STR2## or a structural unit represented by the general formula (IX) ##STR3## wherein the symbols are each as previously defined in the specification, the structural unit (II) or (IX) being contained in an amount of 0.01 to 99.9 mol %; and a process for the production of the above copolymer.The above styrenic copolymer has a high degree of syndiotactic configuration in the stereoregularity of the main chain of the structural unit (I) as well as adhesivity and compatibility with a resin of a different type.Type: GrantFiled: May 4, 1995Date of Patent: September 10, 1996Assignee: Idemitsu Kosan Co. Ltd.Inventors: Shuji Machida, Toshinori Tazaki
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Patent number: 5539039Abstract: This invention relates to stable colorless concentrates and stock solutions of 1-5% crosslinked lower alkyl vinyl ether/maleic anhydride copolymers having a Brookfield viscosity of up to about 25,000 cps and to the process for their preparation.Type: GrantFiled: December 19, 1994Date of Patent: July 23, 1996Assignee: ISP Investments Inc.Inventors: Yoon T. Kwak, Stephen L. Kopolow, Robert B. Login
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Patent number: 5525661Abstract: Paper surface sizing properties of aqueous solutions of high molecular weight (at least 100,000 Daltons weight average) styrene-maleate half ester polymers are improved by forming the maleate half ester using oxyalkylene-alkyl alcohol, preferably 2-(n-butoxy) ethyl alcohol.Type: GrantFiled: April 21, 1995Date of Patent: June 11, 1996Assignee: Monsanto CompanyInventor: Kang I. Lee
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Patent number: 5521250Abstract: Powder coating compositions based on A) copolymers prepared from olefinically unsaturated monomers, containing epoxide and anhydride groups and having a glass transition temperature T.sub.g of 30.degree. to 80.degree. C., an average molecular weight M.sub.n of 1,000 to 6,000 and a molecular weight distribution M.sub.w /M.sub.n of 2.5 to 10.0, B) a hardener component selected from (i) (cyclo)aliphatic dicarboxylic acids, (ii) anhydrides of such dicarboxylic acids, (iii) polyol-modified polymeric anhydrides of such dicarboxylic acids and (iv) aliphatic hydroxycarboxylic acids and optionally C) additional crosslinking agents in the form of polyaddition products having uretidione groups, and the use of these compositions for coating heat-resistant substrates.Type: GrantFiled: July 17, 1995Date of Patent: May 28, 1996Assignee: Bayer AktiengesellschaftInventors: Christian Wamprecht, Hans-Ulrich Meier-Westhues, Jurgen Meixner, Lothar Kahl
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Patent number: 5516828Abstract: This invention relates to stable colorless concentrates and stock solutions of 1-5% crosslinked lower alkyl vinyl ether/maleic anhydride copolymers having a Brookfield viscosity of up to about 25,000 cps and to the process for their preparation.Type: GrantFiled: September 13, 1995Date of Patent: May 14, 1996Assignee: ISP Investments Inc.Inventors: Yoon T. Kwak, Stephen L. Kopolow, Robert B. Login
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Patent number: 5504167Abstract: An improved process for the continuous copolymerization of ethylene with certain polar comohomers having reactive double bonds is disclosed wherein reactor fouling is significantly reduced or eliminated by use of surfactants.Type: GrantFiled: September 28, 1994Date of Patent: April 2, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventor: Antonio Vidal
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Patent number: 5464549Abstract: The dispersants are formed by reacting (a) at least one dispersant having at least one primary or secondary amino group and/or at least one hydroxyl group, with (b) at least one polyolefinic compound substituted at each terminal position by a succinic group. Suitable substances for use as reactant (b) include compounds derived from at least one telechelic compound having up to 5000 carbon atoms and at least two terminal methylene groups by reaction with maleic anhydride or the like. The products are deemed to be effective dispersant/detergents for use in fuels and lubricants. In fuels the products are deemed to exhibit the property of inhibiting and/or reducing deposit formation such as intake valve deposits. In crankcase lubricants, the products are deemed to provide desirable viscosity index improving properties.Type: GrantFiled: December 12, 1991Date of Patent: November 7, 1995Assignee: Ethyl CorporationInventor: John F. Sieberth
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Patent number: 5453476Abstract: An improved process for the free radical copolymerization of a mixture of olefins and a polar monomer is disclosed. The process requires the catalytic isomerization of internally-unsaturated olefins to terminally-unsaturated olefins during the copolymerization reaction. The process results in improved yields in terms of solid product formation and in lower costs than conventional processes. The process is especially useful for the preparation of diisobutylene-maleic anhydride copolymers.Type: GrantFiled: August 23, 1993Date of Patent: September 26, 1995Assignee: Rohm and Haas CompanyInventors: Newman M. Bortnick, Norman L. Holy
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Patent number: 5444139Abstract: An anhydride-functional polymer obtained by polymerizing under free radical addition polymerization reaction conditions, of a monomer mixture comprising:(i) 20 to 75 weight percent of an alkenyl succinic anhydride having the structure: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each independently hydrogen or alkyl or substituted alkyl of 1 to about 30 carbons; and(ii) 25 to 80 weight percent of at least one (meth)acrylic monomer copolymerizable with the alkenyl succinic anhydride; and, optionally,(iii) 0 to 75 weight percent of at least one unsaturated monomer, other than a (meth)acrylic monomer, which is copolymerizable with the anhydride and the (meth)acrylic monomer; and wherein at least part of the monomer mixture comprises acrylic monomers or monomers having allylic hydrogens.Type: GrantFiled: December 29, 1994Date of Patent: August 22, 1995Assignee: The Sherwin-Williams CompanyInventors: Richard S. Valpey, III, John D. Kraan, H. James Harwood
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Patent number: 5420207Abstract: Polyisobutylsuccinic anhydrides having an average molar ratio of succinic anhydride groups to polyisobutyl groups of from 1.05:1 to 1.3:1 are prepared by reacting polyisobutene having an average molecular weight M.sub.w of 600-5000 and containing at least 70% of terminal double bonds with maleic anhydride in a molar ratio of maleic anhydride to polyisobutene of from 1.05:1 to 3:1 at 160.degree.-210.degree. C. in the presence of a catalytic amount of a dicarboxylic acid of 2 to 6 carbon atoms.Type: GrantFiled: June 14, 1994Date of Patent: May 30, 1995Assignee: BASF AktiengesellschaftInventors: Norbert Greif, Knut Oppenlaender
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Patent number: 5420303Abstract: A process for the preparation of a maleated polyethylene wax is disclosed. This process entails mixing in the melt phase polyethylene, maleic anhydride, free radical initiator and a chain transfer agent m-di-isopropylbenzene. This process can be a continuous process either in a stirred reactor or twin screw extruder. The resulting maleated polyethylene wax has a high acid number, essentially no objectionable odor, and a Gardner color number less than 3.Type: GrantFiled: December 16, 1993Date of Patent: May 30, 1995Assignee: Eastman Chemical CompanyInventors: Thomas D. Roberts, Kerry D. Muhlestein, Greg T. Slemons
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Photocurable composition comprising maleic anhydride adduct of polybutadiene or butadiene copolymers
Patent number: 5407784Abstract: An aqueous-developable article is made from a photoprepolymer made by reacting a maleated polyalkadienyl homo- or copolymer (e.g., polybutadiene) with an olefinically unsaturated compound capable of opening anhydride rings (e.g., hydroxyethyl methacrylate) with simultaneous chain extension using a polyalkadienyl polyol, followed by hydrolysis and neutralization with Li--, Na--, or K-containing base. When formulated with unsaturated monomers and photoinitiators, the photoprepolymer is particularly useful in making photopolymer-based flexographic printing plates.Type: GrantFiled: March 22, 1991Date of Patent: April 18, 1995Assignee: W. R. Grace & Co.-Conn.Inventors: Arthur L. Berrier, Ronald J. Kumpfmiller -
Patent number: 5405973Abstract: Anhydride-functional polymerizable monomers having the structure: ##STR1## and polymers and reactive compositions prepared from these monomers are disclosed. The reactive compositions are especially useful in primer, topcoat, and in clearcoat/basecoat applications.Type: GrantFiled: January 3, 1994Date of Patent: April 11, 1995Assignee: The Sherwin-Williams CompanyInventors: Rodney M. Harris, John R. Babjak, Thomas W. Yokoyama, Mohamed D. Shalati
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Patent number: 5362789Abstract: This invention relates to a 1-8% crosslinked terpolymer of alkyl vinyl ether, maleic anhydride and a C.sub.10 to C.sub.20 alkyl (meth)acrylate in a critical molar ratio of from 1-3:1:0.01-0.08, which polymer has a pH of from about 4 to about 11, a Brookfield viscosity of from about 10,000 to about 150,000 cps and is characterized as having significantly improved salt tolerance and stability. The invention also relates to liquid or gel compositions of the crosslinked terpolymer containing a salt and a method for the preparation of said crosslinked terpolymer gel.Type: GrantFiled: December 21, 1993Date of Patent: November 8, 1994Assignee: ISP Investments Inc.Inventors: Yoon T. Kwak, Stephen L. Kopolow
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Patent number: 5358984Abstract: Dispersants that are the reaction product of polyoxyalkylene polyether polyols with polymers containing anhydride groups are discussed. These dispersants may be used in the production of polymer polyols having high styrene contents and high solids contents. The polymers containing the anhydride groups may be preformed polymers which are then reacted with the polyol, or may be formed in the polyol directly prior to esterification with the polyol to form the dispersants. Maleic anhydride and methacrylic arthydride and derivatives thereof are examples of monomers suitable for the dispersants. Polymer polyols made using these dispersants may be reacted with polyisocyanates to produce polyurethanes.Type: GrantFiled: May 24, 1993Date of Patent: October 25, 1994Assignee: Arco Chemical Technology, L.P.Inventors: John E. Hayes, Robert G. Gastinger
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Patent number: 5340918Abstract: A copolymer of maleic anhydride and an alkyl vinyl ether is stabilized by contacting same with a non-reactive substantially moisture free gas at a temperature of from about 30.degree.-100.degree. C. for from about 0.5-24 hours. The copolymer is preferably prepared by reacting together maleic anhydride and an alkyl vinyl ether in the presence of a free radical initiator.Type: GrantFiled: September 14, 1993Date of Patent: August 23, 1994Assignee: KSE Inc.Inventors: James R. Kittrell, Charles W. Quinlan
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Patent number: 5336727Abstract: A maleic anhydride copolymer comprising maleic anhydride units (I), conjugated diene units (II) and aliphatic monoolefin units (III) is provided. This copolymer has a weight-average molecular weight of from 500 to 50000. The molar ratio of unit (I)/(unit (II)+unit (III)) ranges from 30/70 to 90/10 and the molar ratio of unit (II)/unit (III) ranges from 5/95 to 90/10. A hydrolyzed product of the copolymer or a water-soluble maleic acid copolymer is also provided. The hydrolyzed product is advantageously used for scale inhibitors, dispersants for calcium carbonate or admixtures for cement and conctrete.Type: GrantFiled: July 15, 1991Date of Patent: August 9, 1994Assignee: Tosoh CorporationInventors: Tomoyuki Okazawa, Seiichi Tokumaru, Hideo Ohira, Masao Ishii, Yoshiaki Kano
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Patent number: 5310806Abstract: A process for preparing an ethylene-unsaturated polycarboxylic graft copolymer is disclosed. In this process an ethylene polymer having terminal double bond functionality is contacted with an unsaturated polycarboxylic compound in the presence of a catalytically effective amount of an organic peroxide.Type: GrantFiled: May 22, 1991Date of Patent: May 10, 1994Assignee: Quantum Chemical CorporationInventors: Leslie Wild, Jeffrey A. Jones
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Patent number: 5298582Abstract: Improvedly extrudable/coatable ethylene (co)polymers, well adopted for the production of film-coated metal composites, are prepared by radical polymerizing ethylene or recipe thereof including at least one ester of an unsaturated carboxylic acid, e.g., (meth)acrylic acid, advantageously under a pressure ranging from about 800 to 2,500 bars and at a temperature ranging from about 140.degree. to 280.degree. C., in the presence of an effective chain-transfer amount of at least one unconjugated diene, e.g., hexa-1,5-diene, deca-1,9-diene or 2-methylocta-1,7-diene.Type: GrantFiled: August 13, 1993Date of Patent: March 29, 1994Assignee: AtochemInventors: Michel Brusson, Jean Lebez
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Patent number: 5294646Abstract: The invention relates to new N-alkyl-N-(meth)acryloyloxyalkylcarboxamides of aromatic carboxylic acids and aromatic carboxylic acid anhydrides, their preparation and formulations of these compounds for use as adhesives for the treatment of dental hard substance.Type: GrantFiled: June 25, 1992Date of Patent: March 15, 1994Assignee: Bayer AktiengesellschaftInventors: Michael Muller, Wolfgang Podszun, Werner Finger, Jens Winkel
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Patent number: 5290849Abstract: The ammonium salt of a polymer of styrene and maleic anhydride includes 0.02 to 0.20 weight fraction copolymerized C.sub.1 -C.sub.3 alkyl methacrylate to improve paper signing properties.Type: GrantFiled: November 6, 1992Date of Patent: March 1, 1994Assignee: Monsanto CompanyInventor: Kang I. Lee