Ester Contains Two Or More Ester Groups Or At Least One Carboxylic Ester Group And At Least One Free Acid Group; Or Carboxylic Acid Contains Two Or More Free Carboxyl Groups Patents (Class 524/559)
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Patent number: 4764554Abstract: The thickener comprises:(a) 25-45% of methacrylic acid, acrylic acid or a mixture thereof;(b) 25-65% of alkyl acrylate such as methyl acrylate, ethyl acrylate, butyl acrylate, alkyl methacrylate such as methyl methacrylate, ethyl methacrylate, butyl methacrylate, lauryl methacrylate or a mixture thereof;(c) 1-40% of an ester of composition; ##STR1## in which R is a C.sub.12 -C.sub.25 alkyl group, n=at least 10; m=at least 5 A=H, --(CH.sub.2 CH.sub.2 O).sub.n --R, C.sub.1 -C.sub.20 alkyl,--(CH.sub.2 CH.sub.2 O)m-H or --(CH.sub.2 CH.sub.2 O).sub.m --CH.sub.3(d) 0-1% of a polyethylenically unsaturated monomer effective for chain branching or crosslinking such as diallyl maleate, diallyl phthalate, divinyl benzene, allyl methacrylate, ethylene glycol dimethacrylate, or trimethylol propane triacrylate,(e) optionally, but preferably, up to 10% of an ethylenically unsaturated hydrophylic monomer.Type: GrantFiled: June 1, 1987Date of Patent: August 16, 1988Assignee: Crown Decorative Products LimitedInventor: Christopher J. Tonge
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Patent number: 4740546Abstract: An aqueous dispersion of a vinyl copolymer resin is prepared by polymerizing 1 to 15 parts by weight of a polyoxyethylene-containing hydrophilic polymerizable vinyl monomer of which polyoxyethylene moiety has an average molecular weight of 2,000 to 10,000, 99 to 85 parts by weight of at least one specific polymerizable vinyl monomer and 0 to 5 parts by weight of alpha, beta-unsaturated carboxylic acids, salts thereof or anhydrides thereof in an organic solvent, and dispersing the resulting vinyl copolymer resin solution in water.Type: GrantFiled: June 5, 1987Date of Patent: April 26, 1988Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Tsuyoshi Masuda, Zengo Ninomiya
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Patent number: 4731402Abstract: Floor covering adhesives substantially comprisingA. a dispersion of a copolymer of20-60% by weight of vinylidene chloride34-80% by weight of a mixture of 40-80 parts by weight of esters of acrylic acid with C.sub.1 -C.sub.18 -alkanols and 20-60 parts by weight of vinyl esters and0.5 to 6% by weight of .alpha.,62 -monoolefinically unsaturated C.sub.3 -C.sub.5 -mono- and/or dicarboxylic acids and/or amides thereof and/or vinyl sulfonate,B. 30-150 parts by weight (solid), based on 100 parts of a copolymer of A, of tackifying resins from the group of the rosins and derivatives thereof,C. 0-50 parts by weight, based on 100 parts of resin B, of plasticizers and/or liquid resins and also, if desired,D. fillers,are shampoo-resistant and have a high peel strength.Type: GrantFiled: October 21, 1986Date of Patent: March 15, 1988Assignee: BASF AktiengesellschaftInventors: Erich Penzel, Lothar Maempel, Hans J. Neumann, Karl-Clemens Peters, Oral Aydin
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Patent number: 4730016Abstract: Disclosed herein is a resin composition obtained by mixing an olefin-base resin, which has in turn been obtained by partially neutralizing a free carboxyl group in a random copolymer of an .alpha.-olefin and an .alpha.,.beta.-ethylenically-unsaturated monocarboxylic or dicarboxylic acid, with a volatile rust preventive in a specific amount or more. The resin composition has excellent rust preventive properties and can hence be used advantageously as a wrapping material for metal products.Type: GrantFiled: April 14, 1986Date of Patent: March 8, 1988Assignee: Aicerro Chemical Company LimitedInventors: Akira Fujii, Yasuhisa Isobe, Kenichi Hashiudo
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Patent number: 4722954Abstract: A solid flexible polymeric material is formed by solidifying a water-based latex which contains an inorganic filler. The filler is sand and this may be stabilized in the latex with xanthan gum. The solid material may be a formed or non-foamed layer which may be used as integral carpet backing, as carpet underlay, or as an adhesive for bonding a reinforcing fabric to the back of carpeting.Type: GrantFiled: February 12, 1986Date of Patent: February 2, 1988Inventor: Gerald Hallworth
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Patent number: 4685931Abstract: An aqueous dispersion of a copolymer offrom about 50 to 60% by weight ethyl acrylatefrom about 30 to 40% by weight methacrylic acidfrom about 5 to 15% by weight acrylic acid andfrom about 0.02 to 0.04% by weight of a polyethylenically copolymerizable monomer, for example ethylene glycol dimethacrylate. The dispersion is suitable as an additive for aqueous, mildly acidic preparations of hydrogen peroxide to impart an increased viscosity to them after neutralization. The hydrogen peroxide preparations in question are particularly suitable for use as a developer composition for oxidative hair dyes and hair bleaches.Type: GrantFiled: December 13, 1985Date of Patent: August 11, 1987Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Ludwig Schieferstein, Detlef Hollenberg, Norbert Maak
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Patent number: 4661548Abstract: An aqueous copolymer emulsion useful as a ceramic tile adhesive contains filler material, a zinc compound and an aqueous emulsion of a copolymer containing residues of an unsaturated aliphatic hydrocarbon monomer, an unsaturated monomer copolymerizable therewith and a small amount of residues containing carboxyl groups.Type: GrantFiled: November 20, 1985Date of Patent: April 28, 1987Assignee: Scott Bader Company LimitedInventor: Robert G. Parker
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Patent number: 4661545Abstract: The invention relates to a thermoplastic moulding compound consisting of:A. at least 95% (wt) of a copolymer consisting of1. 50-95 moles % styrene and/or .alpha.-methylstyrene2. 50-55 moles % unsaturated dicarboxylic anhydrideB. at most 5% (wt) of an phosphite with the general formula of ##STR1## where R represents hydrogen or the residue of an alkyl, cycloalkyl, aryl, alkaryl or aralkyl, while the R substituents need not to be the same and may contain heteroatoms.It has been found that additions of these phosphites to SMA-containing moulding compounds checks the decomposition of SMA, prevents the moulding compound from getting stuck to the processing equipment and consequently reduces corrosion to a high degree.Type: GrantFiled: October 31, 1985Date of Patent: April 28, 1987Assignee: Stamicarbon B.V. (Licensing subsidiary of DSM)Inventors: Wilhelmus G. M. Bruls, Eize Roerdink
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Patent number: 4654393Abstract: A process is disclosed for preparing a solid, water absorbing, cross-linked polyacrylate resin including combining potassium acrylate and a polyvinyl monomer, such as N,N-methylene bisacrylamide, with water in an amount of 55 to 80 combined weight percent of potassium acrylate and polyvinyl monomer based on the total weight of potassium acrylate, polyvinyl monomer and water to form a monomer mixture, and adding a polymerization initiator to the monomer mixture to initiate polymerization of the monomer mixture. The monomer mixture then is polymerized without external heating by utilizing the exothermic heat of reaction as substantially the only non-ambient energy source to drive water away from said polyacrylate resin to form the cross-linked polyacrylate resin having a water content sufficiently low (i.e. 15% or less) to be powdered, such as by pulverization, without an intermediate drying step.Type: GrantFiled: May 6, 1985Date of Patent: March 31, 1987Assignee: American Colloid CompanyInventors: Muneharu Mikita, Shozo Tanioku, Takayasu Touda
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Patent number: 4654396Abstract: A dispersion, having highly dilatant flow, of a carboxyl-containing copolymer of monoolefinically unsaturated monomers, wherein the temperature dependence of the critical shearing rate is greatly reduced by incorporation of from 0.1 to 30% by weight of oxides, hydroxides, carbonates and/or water soluble salts of monovalent or divalent metals.Type: GrantFiled: September 9, 1985Date of Patent: March 31, 1987Assignee: BASF AktiengesellschaftInventors: Richard Bung, Klaus Haas, Martin Laun, Franz Schmidt, Gerhard Welzel
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Patent number: 4654397Abstract: A process for the preparation of aqueous polymer dispersions which have a low film-forming temperature but still give films having a high block resistance, and the use of these polymer dispersions as binders for coating materials.Type: GrantFiled: December 2, 1985Date of Patent: March 31, 1987Assignee: BASF AktiengesellschaftInventors: Rudolf Mueller-Mall, Michael Melan, Eckehardt Wistuba, Lothar Matthaei
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Patent number: 4645789Abstract: Crosslinked water absorbent carboxylic polyelectrolytes and articles made therefrom are provided. The polyelectrolytes are crosslinked using a di- or tri-functional aziridine crosslinking agent.Type: GrantFiled: August 29, 1985Date of Patent: February 24, 1987Assignee: Personal Products CompanyInventor: Shmuel Dabi
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Patent number: 4642324Abstract: A vinyl chloride resin composition comprising a copolymer derived from 70 to 99.8% by weight of vinyl chloride, 0.2 to 30% by weight of a monoester of an alpha, beta-unsaturated dicarboxylic acid, 0 to 2% by weight of a compound having two or more active double bonds in the molecule and 0 to 20% by weight of another vinyl compound, a mono- or divalent metal compound and a plasticizer.Type: GrantFiled: February 14, 1985Date of Patent: February 10, 1987Assignee: Nippon Zeon Co., Ltd.Inventors: Toshiaki Kobayashi, Hiromichi Arakawa, Tatsuo Ohira
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Patent number: 4636258Abstract: An ink composition for thermal transfer printing of about 30 to 50 weight percent of a masterbatch including a pigment or dye uniformly dispersed in a copolymer of at least one of styrene and an .alpha.-olefin and at least one of a maleic anhydride and a dialkyl maleate and about 50 to 70 weight percent wax or resin is provided. The ink composition is suitable for use as the ink layer of an electrothermal transfer recording sheet.Type: GrantFiled: August 20, 1985Date of Patent: January 13, 1987Assignee: Seiko Epson Kabushiki KaishaInventors: Seiichi Hayashi, Katsumori Takei, Takahiro Usui, Yoshitaka Yamaguchi, Makoto Taniguchi
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Patent number: 4614759Abstract: Surface sizing agents for paper containing aqueous or aqueous-alcoholic alkali metal, amine or ammonium salt solutions of copolymers of maleic anhydride and diisobutylene and, if appropriate, a vinyl monomer of the formula ##STR1## in which R designates H, --CH.sub.3, --C.sub.2 H.sub.5, --OR.sub.2, --OCOCH.sub.3, ##STR2## or --CH.sub.2 --O--COCH.sub.3, R.sub.1 designates H or --CH.sub.3 andR.sub.2 designates alkyl, the anhydride groups of the copolymers being bis-esterified to the extent of 25-90 mol % with primary aliphatic monoalcohols with 1 to 12 C atoms.Type: GrantFiled: August 5, 1985Date of Patent: September 30, 1986Assignee: Bayer AktiengesellschaftInventors: Gunter Sackmann, Ulrich Beck, Heinz Baumgen
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Patent number: 4613639Abstract: Plastisols and organosols which have a long shelf life at room temperature, are based on a mixture of a finely divided synthetic resin with a plasticizer and may or may not contain additional pigments, fillers, volatile organic solvents and other assistants are prepared by a process in which an inert or reactive protective colloid or emulsifier, or a mixture of these, is added to a dispersion of a finely divided synthetic resin in a plasticizer, the dispersion as such not having a long shelf life at room temperature.These plastisols can be used as coating materials, sealants and adhesives.Type: GrantFiled: October 24, 1985Date of Patent: September 23, 1986Assignee: BASF AktiengesellschaftInventors: Rainer Blum, Rolf Osterloh
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Patent number: 4605698Abstract: Polyfunctional aziridines useful in crosslinking applications have been developed which are reaction products of (1) ethylene imine and (2) acrylates of alkoxylated trimethylol propane, neopentyl glycol, pentaerythritol, bis phenol A, bis phenol F and glycerol, each having a degree of alkoxylation of from about 2 to about 12. Examples are the bis aziridine of the diacrylate of the adduct of neopentyl glycol and 2 moles of ethylene oxide and the tris aziridine of the triacrylate of the adduct of trimethylol propane and 3 moles of ethylene oxide.Type: GrantFiled: September 12, 1985Date of Patent: August 12, 1986Assignee: Diamond Shamrock Chemicals CompanyInventor: Frank C. Briden
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Patent number: 4604420Abstract: Vulcanizable polymer compositions with improved scorch are provided comprising a carboxylated nitrile rubber or a carboxylated styrene-butadiene rubber, one or more polyvalent metal oxides and one or more alkali metal salts selected from the lithium, sodium and potassium salts of C.sub.12-18 -alkanoic acids.Type: GrantFiled: March 22, 1985Date of Patent: August 5, 1986Assignee: Polysar LimitedInventor: Kyosaku Sato
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Patent number: 4577007Abstract: Resorcinol monobenzoate is reacted through the hydroxyl group preferably with an acrylic prepolymer containing glycidyl methacrylate. The product can be used in coating compositions and films to give highly ultraviolet absorbent properties.Type: GrantFiled: December 21, 1984Date of Patent: March 18, 1986Assignee: E. I. Du Pont de Nemours and CompanyInventor: Michael DeBergalis
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Patent number: 4558084Abstract: What are disclosed are plastisols of copolymers of methyl methacrylate with from 0.1 to 10 weight percent of itaconic acid or of itaconic acid anhydride, which copolymers have a glass transition temperature above 50.degree. C., a degree of polymerization higher than 400 and an average particle size ranging from 0.1 to 500 microns and contain, per 100 parts by weight of the copolymer, from 100 to 1000 parts by weight of an organic plasticizer compatible with the copolymer, and optional fillers and further conventional additives.Type: GrantFiled: September 20, 1982Date of Patent: December 10, 1985Assignee: Rohm GmbHInventors: Peter Quis, Werner Siol, Joachim Buechse, Hubert Rauch
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Patent number: 4558087Abstract: A vinyl chloride resin composition for production of hard articles. The composition comprises 100 parts by weight of a graft polymer and not more than 40 parts by weight of electrically conductive carbon black. The graft polymer is obtained by polymerizing 99 to 60% by weight of vinyl chloride or a monomeric mixture composed of at least 80% by weight of vinyl chloride and not more than 20% by weight of a monomer copolymerizable with it in the presence of 1 to 40% by weight of a copolymer composed of 5 to 75% by weight of methyl methacrylate and 95 to 25% by weight of ethylene.Type: GrantFiled: July 11, 1984Date of Patent: December 10, 1985Assignee: Nippon Zeon Co. Ltd.Inventors: Masahiro Yamakawa, Mamoru Nakamura, Toyoichi Arai
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Patent number: 4542181Abstract: Latices of vinyl acetate polymers comprising particles having an average diameter between 0.05 and 1 .mu.m and being present in the latex at a concentration of between 10 and 70% by weight. The polymers have a glass transition temperature between -20.degree. and 50.degree. C. The latices also contain a protective colloid comprising a water-soluble polymer (a) containing at least one monomer selected from the group consisting of N-methylolacrylamide and N-methylolmethacrylamide and a water-soluble polymer (b) of ethylene glycol, the polymer (b) having a molecular weight between 1,000 and 50,000.The latices are prepared by polymerization in aqueous emulsion, in the presence of both an initiator and the above-reference protective colloid. The latices may be applied as binders in the manufacture of paints, glues, paper, textiles, floor coverings and mortar additives.Type: GrantFiled: August 5, 1982Date of Patent: September 17, 1985Assignee: Rhone-Poulenc Specialties ChimiquesInventors: Jean-Luc Schuppiser, Jean-Claude Daniel
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Patent number: 4542182Abstract: Latices of particles of vinyl acetate/olefin copolymers. The particles have an average diameter between 0.05 and 1 .mu.M. The copolymers have a glass transition temperature between -30.degree. and 50.degree. C. The particles are present in the latices in a concentration between 10 and 70% by weight. The latices contain a protective colloid comprising a water-soluble polymer (a) containing at least one monomer selected from the group consisting of N-methylolacrylamide and N-methylolmethacrylamide and a water-soluble polymer (b) of ethylene glycol, wherein polymer (b) has a molecular weight of between 1,000 and 50,000.The latices are prepared by polymerization in aqueous emulsion, in the presence of an initiator and the above-described protective colloid.The latices may be applied as binders in the manufacture of paints, glues, paper, textiles, floor coverings and mortar additives.Type: GrantFiled: August 5, 1982Date of Patent: September 17, 1985Assignee: Rhone-Poulenc Specialties ChimiquesInventors: Jean-Luc Schuppiser, Jean-Claude Daniel
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Patent number: 4537926Abstract: Described is an aqueous chip resistant coating composition exhibiting a viscosity of at least 5,000 centipoise, preferably containing binders with a high molecular weight, preferably at least 20,000. Although these coatings may be applied to a variety of substrates, for coating electrocoated substrates the following eight binders are particularly preferred: ethylene vinyl acetate copolymer, carboxylated ethylene vinyl acetate, epoxy functional acrylic resin, carboxylated styrene-butadiene resin, carboxylated acrylic, hydroxy functional acrylic, self-crosslinking acrylic; and carboxylated PVC acrylic. Generally, it is preferred to apply the chip resistant coating via an airless spray and the heat curing the coating.Type: GrantFiled: April 6, 1984Date of Patent: August 27, 1985Assignee: Grow Group, Inc.Inventors: Daniel M. Kivel, Gerhard M. Weber
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Patent number: 4526910Abstract: Disclosed is an essentially solvent-based, organic, high-solids coating composition containing (A) a film-forming binder system containing a crosslinkable resin having a weight average molecular weight of from about 500 to about 10,000; (B) substantially colorless, substantially inorganic microparticles stably dispersed in the coating composition; and (C) a solvent system for the crosslinkable resin. The substantially inorganic microparticles prior to incorporation in the coating composition range in size from about 1 to about 150 nanometers and are in the form of a sol of the microparticles in which the surface of the inorganic microparticles is essentially free of carbon-containing molecules chemically bonded to the inorganic microparticles.Type: GrantFiled: September 6, 1983Date of Patent: July 2, 1985Assignee: PPG Industries, Inc.Inventors: Suryya K. Das, Paul P. Greigger, William G. Boberski, James E. Jones, Raymond F. Schappert, Jerome A. Seiner
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Patent number: 4522971Abstract: Resorcinol monobenzoate is reacted through the hydroxyl group preferably with an acrylic prepolymer containing glycidyl methacrylate. The product can be used in coating compositions and films to give highly ultraviolet absorbent properties.Type: GrantFiled: February 25, 1983Date of Patent: June 11, 1985Assignee: E. I. Du Pont de Nemours and CompanyInventor: Michael DeBergalis
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Patent number: 4519920Abstract: A copolymer of maleic acid (MA) and (meth)acrylic acid (AA), or a salt thereof, wherein the molar ratio (MA/AA) .gamma. of the constituent monomers is 1.15 to 2.7, the average molecular weight MW is 1000 to 8000, and (.gamma.).times.(MW) is at least 3000. The copolymer is useful as a calcium ion capturing agent, in a process for treating water to inhibit formation of scale surfaces contacted by the water.Type: GrantFiled: April 9, 1984Date of Patent: May 28, 1985Assignee: Kao Soap Co., Ltd.Inventors: Yasuhisa Fukumoto, Noboru Moriyama
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Patent number: 4506041Abstract: A binder of this invention is a powder which comprises an intimate mixture of a copolymer of maleic anhydride with an olefinically unsaturated compound selected from the group consisting of an aliphatic .alpha.-olefin having 2 to 8 carbon atoms, styrene and methyl vinyl ether, 0.2 to 2.0 equivalents of a caustic alkali per carboxyl equivalent of said copolymer, and if desired, 30 to 500 parts by weight of an alkaline earth metal hydroxide per 100 parts of the total weight of said copolymer and said caustic alkali, and if desired, up to 300 parts by weight of additive per 100 parts of the total weight of said copolymer and said caustic alkali. A process for preparing a mold according to this invention comprises mixing said powdered binder with refractory particles and a small amount of water under agitation, and forming the resulting mixture into a shaped product, whereafter the shaped product is hardened by blowing CO.sub.2 gas therethrough.Type: GrantFiled: June 30, 1983Date of Patent: March 19, 1985Assignees: Hitachi, Ltd., Kinsei Kogyo Co., Ltd.Inventors: Takatoshi Tanigawa, Sakari Yaegashi, Tetsuo Nakazawa, Masahiko Hatazi, Tadao Nango
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Patent number: 4497929Abstract: A latex composition having utility in articles such as photographic elements is disclosed. The composition comprises loadable polymer particles having recurring units a, b and c wherein:component a is 10 to 100 weight percent of a tetrahydrofurfuryl monomer having the structure: ##STR1## in which R.sub.1 represents O or NH; andR.sub.2 represents H or lower alkyl of about 1 to 6 carbon atoms;component b is 0 to 20 weight percent of a hydrophilic monomer andcomponent c is 0 to 90 weight percent of a hydrophobic monomer.Type: GrantFiled: July 19, 1982Date of Patent: February 5, 1985Assignee: Eastman Kodak CompanyInventors: James W. Brown, Tsang J. Chen, Michael A. Schen
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Patent number: 4481324Abstract: Enhanced lubricating properties and good heat stability upon processing are imparted to thermoplastic materials such as polyvinyl chloride, polypropylene and acrylonitrile-butadiene-styrene resins by the incorporation therein of a polyglycerol ester of a C.sub.8 to C.sub.22 fatty acid. The ester is characterized by a degree of polymerization ranging from 2 to 8 and a degree of acid substitution ranging from 1 to 10.Type: GrantFiled: February 25, 1983Date of Patent: November 6, 1984Assignee: Glyco Inc.Inventors: Larry K. Hall, Marvin Rosen
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Patent number: 4460721Abstract: A printing ink or varnish having a binder comprising isopropylmethacrylate and hydrophilic comonomers, particularly unsaturated carboxylic acids, their hydroxyalkyl esters, or a mixture thereof; preferably in combination with cellulose esters such as nitrocellulose, as an additional binder. The ink or varnish also contains dissolved or undissolved dyes, as well as a lower alkyl alcohol solvent. The printing and coatings thus produced are characterized by hardness and a high sealing stability.Type: GrantFiled: May 24, 1983Date of Patent: July 17, 1984Assignee: Rohm GmbH Chemische FabrikInventors: Wilhelm Elser, Manfred Munzer
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Patent number: 4452776Abstract: A hydrogel implant article of significant softness, pliability and elasticity when dry as well as when wet consists of a random cross-linked copolymer of 2-hydroxyethyl acrylate and an alkyl acrylate. The acrylate hydrogel article is useful, in one instance, as the material to produce a scleral buckle in retinal detachment surgery.Type: GrantFiled: March 12, 1982Date of Patent: June 5, 1984Assignee: Eye Research Institute of Retina FoundationInventor: Miguel F. Refojo
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Patent number: 4451632Abstract: A process for preparing, in aqueous emulsion, controlled interpolymer compositions. The interpolymer compositions have polymerized therein from about 86 to 92 mole percent, vinylidene chloride, from about 14 to 8 mole percent of a comonomer mixture of methyl methacrylate and a comonomer selected from the group consisting of acrylonitrile, methacrylic acid and methacrylonitrile in a ratio of the comonomer to methyl methacrylate of from about 0.5:1 to 2:1, and from about 0.5 to 1.0 weight percent itaconic acid, based on weight of vinylidene chloride plus comonomer mixture. The interpolymers are prepared in a three step process. The third step, or Step III, wherein monomer feeding is step-wise reduced for a portion of the step and a polymerization initiator is added at generally the same constant rate as the rate of addition in Steps I and II, generally reduces the amount of unreacted mixed monomers remaining after monomer addition is completed.Type: GrantFiled: July 6, 1982Date of Patent: May 29, 1984Assignee: The Dow Chemical CompanyInventors: Dale S. Gibbs, Warren L. Treptow
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Patent number: 4440885Abstract: An aqueous emulsion of a solid, water insoluble or limited water soluble organic peroxide is provided that has improved stability, dilutability and safety but still having an average particle size of 1.5 microns or less and a good particle size distribution. The emulsion has from about 10 weight percent of the emulsion of a solid peroxide selected from the group of hydroperoxides .alpha., -oxy and .alpha.-peroxy hydroperoxides, dialkyl peroxides, aldehyde and ketone peroxides, diacyl peroxides, peroxyesters, peroxy acids, peroxydicarbonates, monoperoxycarbonates and perketals.The emulsion also has a hydrocarbon solvent having a high kauri-butanol number if the organic peroxide has a substantial amount of aromaticity and a low kauri-butanol number if the organic peroxide has little or no aromaticity and one or more nonioic emulsifiers and at least about 20 weight percent of water.Type: GrantFiled: April 2, 1982Date of Patent: April 3, 1984Assignee: PPG Industries, Inc.Inventor: Albert E. Tamosauskas
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Patent number: 4421889Abstract: Dispersion paints with high wet adhesion are obtained if, as the binder thereof, an aqueous plastics dispersion is used, the polymer content of which includes monomeric units of an acetoacetic acid ester of an unsaturated alcohol, especially vinyl or allyl alcohol or a diester of a dihydroxy compound in which one acyl radical is acetoacetyl and the other acyl radical is an acrylic or methacrylic radical. The preparation of paints with a low pigment content is especially facilitated by the use of such a dispersion.Type: GrantFiled: May 13, 1983Date of Patent: December 20, 1983Assignee: Hoechst AktiengesellschaftInventors: Helmut Braun, Helmut Rinno, Werner Stelzel
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Patent number: 4418163Abstract: A water absorbing composite comprises an inorganic powder, and a highly absorbent resin covering the whole surfaces of the individual particles of the inorganic powder. The resin is obtained by reacting with a basic substance a polymer containing as a monomeric constituent an .alpha.,.beta.-unsaturated compound having in its molecule one or two carboxyl groups, or one or two other groups convertible to a carboxyl group or groups, and by crosslinking the reaction product with a polyamine. The composite is useful as a water retaining agent for agriculture and horticulture, or as a dehydrating agent for oil.Type: GrantFiled: August 13, 1982Date of Patent: November 29, 1983Assignee: Kuraray Co., Ltd.Inventors: Tetsuo Murakami, Hirotoshi Miyazaki, Hiroshi Harima
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Patent number: 4399060Abstract: Semiconductive elastomeric compositions useful as the outer layer on insulated electric cables and suitable for high temperature vulcanization techniques.Type: GrantFiled: February 10, 1981Date of Patent: August 16, 1983Assignee: E. I. Du Pont de Nemours & Co.Inventor: Gary L. Glass
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Patent number: 4388438Abstract: The method of preparing aqueous dispersions of copolymers of styrene dibutyl maleate and acrylic or methacrylic acid or monobutyl maleate consists in adding a monomer mixture comprising styrene in the amount of 40-90% by weight, dibutyl maleate in the amount of 10-60% by weight acrylic or methacrylic acid or monobutyl maleate in the amount of 1.0-10.0% by weight in relation to the sum of styrene monomer and dibutyl maleate into the emulsion water known constituents such as:ionic emulsifier - non-ionic emulsifier, buffer, sodium acrylate, N-methylolmethacrylamide to which, prior to polymerization, an alkylene glycol comprising 2-6 carbon atoms in the alkylene group is added. The alkylene glycol is added in the amount of 1-6% by weight in relation to the sum of styrene monomer and dibutyl maleate while, the ratio of alkylene glycol to the methacrylic acid or monobutyl maleate contained in the monomer mixture is 1:0.2-2. The polymerization process is conducted at a temperature of 70.degree.-90.degree. C.Type: GrantFiled: January 6, 1981Date of Patent: June 14, 1983Assignee: Osrodek Badaw Cze-Rozwojowy Kauczukow I Tworzyw WinylowychInventors: Maria Knypl, Eugeniusz Knypl, Marian Starzak, Ewa Mieczkowska, Urszula Pawlus, Romuald Palubicki, Mieczyslaw Ficek, Jozef Goldynia
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Patent number: 4370460Abstract: Gasoline-soluble copolymers containing, as copolymerized units,(A) from 10 to 40% by weight of styrene,(B) from 10 to 50% by weight of tert.-butyl acrylate and/or vinyl pivalate,(C) from 20 to 40% by weight of isobutyl methacrylate,(D) from 5 to 20% by weight of acrylic acid esters and/or methacrylic acid esters of alkanols of 10 to 20 carbon atoms and(E) from 0 to 5% by weight of monoolefinically unsaturated monocarboxylic acids and/or dicarboxylic acids of 3 to 5 carbon atoms and/or their .beta.-hydroxyalkyl esters and/or monoalkyl esters of the dicarboxylic acids,the amount of component (D) being from 20 to 50% by weight of that of component (A), and the sum of the percentages of A to E being 100, are particularly suitable for use as binders for gasoline-containing masonry paints and renders.Type: GrantFiled: June 16, 1981Date of Patent: January 25, 1983Assignee: BASF AktiengesellschaftInventors: Gerhard Neubert, Eckehardt Wistuba
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Patent number: 4363886Abstract: An amphoteric water-in-oil self-inverting polymer emulsion is prepared which contains a copolymer of (1) a nonionic vinyl monomer and (2) an amphoteric vinyl monomer or a terpolymer of (1) a nonionic vinyl monomer, (2) an anionic vinyl monomer and (3) a cationic vinyl monomer in the aqueous phase, a hydrocarbon oil for the oil phase, a water-in-oil emulsifying agent and an inverting surfactant. An example of a copolymer is a copolymer of (1) a nonionic vinyl monomer such as acrylamide or methacrylamide and (2) an amphoteric vinyl monomer such as a reaction product of dimethylaminoethyl methacrylate and monochloroacetic acid. An example of a terpolymer is a terpolymer of (1) a nonionic vinyl monomer such as acrylamide or methacrylamide, (2) an anionic vinyl monomer such as sodium acrylate and (3) a cationic vinyl monomer such as a triethyl ammonium ethyl methacrylate methosulfate salt.Type: GrantFiled: September 4, 1981Date of Patent: December 14, 1982Assignee: Diamond Shamrock CorporationInventors: Stanley A. Lipowski, John J. Miskel, Jr.
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Patent number: 4360605Abstract: Dental glass ionomer cements are obtained by using as a mixing component for preparing the final cement mixture either a liquid mixing component comprising an aqueous solution of a certain maleic acid-acrylic acid-copolymer and optionally usual additives or a solid, powdery mixing component comprising a powder mixture of a glass ionomer cement powder and the maleic acid-acrylic acid-copolymer in solid form and optionally usual additives.Type: GrantFiled: August 5, 1980Date of Patent: November 23, 1982Assignee: Espe Fabrik pharmazeutischer Praparate GmbHInventors: Werner Schmitt, Robert Purrmann, Peter Jochum, Oswald Gasser
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Patent number: 4346027Abstract: Polymer compositions are described that confer an enhanced balance of wet and dry strength properties to a cellulosic substrate while leaving the substrate soft and porous. The compositions comprise a hydrophilic air-curing polymer and a polyol with a carbon to oxygen ratio of less than 3:1, typified by glycerol.Type: GrantFiled: September 19, 1980Date of Patent: August 24, 1982Assignee: Monsanto CompanyInventor: Donald N. Van Eenam
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Patent number: 4342677Abstract: A liquid for setting dental cements comprising a aqueous solution of a copolymer of acryclic acid and maleic acid, tartaric acid and one or more fluorocomplex salt.Type: GrantFiled: May 14, 1981Date of Patent: August 3, 1982Assignee: G-C Dental Industrial Corp.Inventors: Hiroaki Muramatsu, Kentaro Tomioka, Kazuo Hirota, Shoji Akahane
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Patent number: 4330450Abstract: An amphoteric water-in-oil self-inverting polymer emulsion is prepared which contains a copolymer of (1) a nonionic vinyl monomer and (2) an amphoteric vinyl monomer or a terpolymer of (1) a nonionic vinyl monomer, (2) an anionic vinyl monomer and (3) a cationic vinyl monomer in the aqueous phase, a hydrocarbon oil for the oil phase, a water-in-oil emulsifying agent and an inverting surfactant. An example of a copolymer is a copolymer of (1) a nonionic vinyl monomer such as acrylamide or methacrylamide and (2) an amphoteric vinyl monomer such as a reaction product of dimethylaminoethyl methacrylate and monochloroacetic acid. An example of a terpolymer is a terpolymer of (1) a nonionic vinyl monomer such as acrylamide or methacrylamide, (2) an anionic vinyl monomer such as sodium acrylate and (3) a cationic vinyl monomer such as a triethyl ammonium ethyl methacrylate methosulfate salt.Type: GrantFiled: October 15, 1979Date of Patent: May 18, 1982Assignee: Diamond Shamrock CorporationInventors: Stanley A. Lipowski, John J. Miskel, Jr.
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Patent number: 4321176Abstract: A method of forming a latex coating composition is disclosed in which there is first formed an aqueous emulsion of liquid droplets of water-insoluble polyol, such as a propylene oxide adduct of bisphenol. A, with the aid of a surfactant, and monoethylenically unsaturated monomers to be copolymerized are incorporated in the polyol emulsion while conditions of elevated temperature and catalysis are maintained to cause polymerization of said monomers in association with said polyol. The polyol is used in an amount of about 1% to about 25%, based on the weight of the materials which are copolymerized, and the monomers desirably include from about 0.5% to about 10% on the same basis of a reactive monomer, such as isobutoxymethyl acrylamide.Type: GrantFiled: January 10, 1980Date of Patent: March 23, 1982Assignee: DeSoto, Inc.Inventors: Kazys Sekmakas, Raj Shah