Five-membered Oxygen Ring, E.g., Coumarone-indene, Etc. Patents (Class 524/549)
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Patent number: 4780499Abstract: An aqueous fabric finishing composition includes a solubilized polymer of from 40 to 51 mole percent of a mixture of higher one-alkenes and from 60 to 49 mole percent maleic anhydride.Type: GrantFiled: April 9, 1987Date of Patent: October 25, 1988Assignee: S. C. Johnson & Son, Inc.Inventors: John G. Villarreal, Calvin J. Verbrugge, Fred J. Reichley
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Patent number: 4771097Abstract: Tub sizes 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## --CH.sub.2 OH 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 about 3 to about 20 mol %, relative to the anhydride groups, with aliphatic monoalcohols having 1 to 12 C atoms.Type: GrantFiled: March 16, 1987Date of Patent: September 13, 1988Assignee: Bayer AktiengesellschaftInventors: Gunter Sackmann, Ulrich Beck, Joachim Konig, Heinz Baumgen, Klaus-Dieter Albrecht
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Patent number: 4767553Abstract: Lubricating oils of improved properties contain a terpolymer of maleic anhydride, lauryl methacrylate, and stearyl methacrylate which has been functionalized or coupled with phenothiazine and with N-methyl piperazine.Type: GrantFiled: December 24, 1986Date of Patent: August 30, 1988Assignee: Texaco Inc.Inventors: William P. Hart, Maria M. Kapuscinski, Christopher S. Liu
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Patent number: 4748196Abstract: A water repellent composition comprising an emulsion prepared by emulsifying in water (A) a wax having a melting point of from 40.degree. to 90.degree. C. and (B) an olefin-maleic anhydride derivative in the presence of (C) a water-soluble alkaline compound and/or a nonionic emulsifier.Type: GrantFiled: September 18, 1986Date of Patent: May 31, 1988Assignees: Mitsubishi Chemical Industries, Ltd., Yoshino Gpysum Company, Ltd.Inventors: Katsuhiko Kuroda, Toru Tagawa, Kiyoharu Yoshimi, Yasoji Ozawa
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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: 4730019Abstract: A coating composition having improved heat resistance is disclosed. The coating composition comprises a ligand-free monomer/maleic anhydride polymer, and an effective amount of a metal ion-containing fugitive ligand complex to solubilize the polymer in an aqueous medium.Type: GrantFiled: May 12, 1986Date of Patent: March 8, 1988Assignee: S. C. Johnson & Son, Inc.Inventor: Frederick C. Hansen
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Patent number: 4716192Abstract: A method for preparing a stable vinyl chloride based resin emulsion which comprises a copolymer colloidally dispersed in an aqueous medium, the copolymer having a Tg from 0.degree. to 50.degree. C.Type: GrantFiled: March 13, 1987Date of Patent: December 29, 1987Assignee: Air Products and Chemicals, Inc.Inventor: John G. Iacoviello
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Patent number: 4711735Abstract: Disclosed herein is an improved coolant additive having corrosion inhibitive and scale preventative properties. In particular, the inventive additive in its various embodiments is specifically designed to avoid the use of silicates which, as is well known, form deposits which coat the surfaces and passageways of heavy duty diesel and other cooling systems, resulting in shortened life and reduced efficiency thereof. The inventive additive includes sodium hydroxide and/or alkal metal carbonate, ricinoleic acid, Reomet 41, Thiotax, various forms of SMA copolymers, sodium benzoate, sodium nitrate, chelant(s), antifoam agents, dye/pH indicator and soft water (composition solvent), mixed together in predetermined proportions with the various embodiments of the inventive additive including other constituent substances.Type: GrantFiled: September 12, 1986Date of Patent: December 8, 1987Inventor: Harold J. Gulley
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Patent number: 4710537Abstract: Substantially homogeneous acrylate/maleate copolymers of number average molecular weight of 500 to 5000 are prepared by copolymerizing 35 to 65 mole percent acrylic or methacrylic acid with 65 to 35 mole percent maleic anhydride at 80.degree. to 150.degree. C. in the presence of a polymerization initiator and a chain-transfer solvent such that both the monomers and the formed polymer remain in solution and the mole ratio of the acrylic or methacrylic acid monomer to the maleic anhydride monomer in the solvent is maintained below about 0.2 throughout the polymerization. The copolymers in hydrolyzed form are employed at a level of from about 0.1 to 100 ppm for prevention of alkaline calcium and magnesium scale formation, such as during seawater evaporative desalination.Type: GrantFiled: October 11, 1985Date of Patent: December 1, 1987Assignee: Pfizer Inc.Inventor: Stanley W. Walinsky
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Patent number: 4691759Abstract: The present invention provides a binder for foundry sand which comprises a hydrolyzate of a butadiene/maleic anhydride copolymer, a neutralized or a partially neutralized substance of the hydrolyzate, a modified substance prepared by modifying the hydrolyzate with a basic organic compound, or a mixture thereof.Type: GrantFiled: July 22, 1986Date of Patent: September 8, 1987Assignee: Nippon Petrochemicals Co., Ltd.Inventors: Masaru Hayakawa, Takeshi Yoshida, Atsushi Kaiya
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Patent number: 4663411Abstract: Crosslinkable polymers having about 1 to 100% of units derived from an unsaturated ester of furoic acid of the formula: ##STR1## where R denotes hydrogen or an alkyl group, R' denotes a straight-chain or branched alkylene group and n denotes an integer from 1 to 4, and 0 to about 99% of units from an unsaturated monomer which is copolymerizable with the ester. The crosslinkable polymers may be in the form of latices. The crosslinkable polymers are prepared by polymerization of the unsaturated ester of furoic acid and, if appropriate, an unsaturated comonomer, in aqueous emulsion. The polymers and latices can be used in the manufacture of coatings.Type: GrantFiled: January 21, 1986Date of Patent: May 5, 1987Assignee: Rhone Poulenc Specialities ChimiquesInventors: Roland Reeb, Bernard Chauvel
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Patent number: 4644032Abstract: A pressure-sensitive adhesive having non-ghosting characteristic comprising a latex of polymers having pendent oxazoline groups, coreactive groups and a tackifier. The latex comprises discrete polymer particles having both pendent oxazoline and coreactive groups or a blend of discrete polymer particles one portion of which has pendent oxazoline groups and the other portion of which has pendent coreactive groups. The oxazoline group is preferably 2-isopropenyl-2-oxazoline and the coreactive group is a carboxyl, sulfonic acid, anhydride, phenolic, hydroxyl, amide or amine group.Type: GrantFiled: September 4, 1984Date of Patent: February 17, 1987Assignee: The Dow Chemical CompanyInventors: William H. Keskey, James E. Schuetz, Andrew D. Hickman
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Patent number: 4634722Abstract: Copolymers having improved machining and water resistant properties are produced using a monomer containing an adduct protecting group, particularly an alkyl boronic acid adduct, of glyceryl acrylate or glyceryl methacrylate, in combination with an alkyl acrylate or methacrylate, and optionally a glycidyl acrylate or methacrylate. After machining and shaping, the adduct is removed to provide a hydrogel useful as a contact lens material.Type: GrantFiled: August 29, 1983Date of Patent: January 6, 1987Assignee: Syntex (U.S.A.) Inc.Inventor: Paul M. Gallop
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Patent number: 4634731Abstract: A moldable composition which comprises a novel random bromostyrene-containing copolymer, thermoplastic resin, preferably polycarbonate and a flame retardant synergist is disclosed. The molded composition exhibits at least a 94 V-1 classification when tested in accordance with Underwriters Laboratories Inc. Test Method UL94.Type: GrantFiled: December 24, 1984Date of Patent: January 6, 1987Assignee: Atlantic Richfield CompanyInventor: Usama E. Younes
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Patent number: 4629754Abstract: A binder composition which is pigmentable comprising from 30 to 99 wt % of a mineral lubricating oil extract and from 70 to 1 wt % of a petroleum resin and/or coumarone-indene resin, characterized in that the petroleum resin and/or coumarone-indene resin contains moieties derived from carboxylic acid, carboxylic acid anhydride or hydroxyl groups.Type: GrantFiled: September 23, 1985Date of Patent: December 16, 1986Assignee: Shell Oil CompanyInventors: Johannes L. M. Syrier, Willem C. Vonk, Gerrit van Gooswilligen
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Patent number: 4626573Abstract: A moldable composition which comprises a novel random N-(brominated or chlorinated phenyl) maleimide-containing copolymer, a thermoplastic resin, preferably, polycarbonate and a flame retardant synergist is disclosed. The molded composition exhibits at least a 94 V-1 classification when tested in accordance with Underwriters Laboratories Inc. Test Method UL94.Type: GrantFiled: April 9, 1986Date of Patent: December 2, 1986Assignee: Atlantic Richfield CompanyInventor: Usama E. Younes
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Patent number: 4623692Abstract: A process for solubilizing a ligand-free monomer/maleic anhydride polymer into an aqueous medium employing a metal fugitive ligand complex to disperse the polymer.Type: GrantFiled: March 14, 1985Date of Patent: November 18, 1986Assignee: S. C. Johnson & Son, Inc.Inventor: Frederick C. Hansen
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Patent number: 4616074Abstract: Acrylic emulsion copolymers are prepared by emulsion polymerization of (A) a surfactant monomer, (B) an .alpha.,.beta.-ethylenically unsaturated carboxylic acid monomer, (C) a nonionic .alpha.,.beta.-ethylenically unsaturated monomer and (D) optionally a polyethylenically unsaturated cross-linking monomer. The surfactant monomer is prepared by condensing a mono or polyhydric alcohol nonionic surfactant with methylene succinic acid. At a low pH the copolymer may be in the form of an aqueous dispersion or latex, but thickens upon neutralization of at least some of the carboxyl groups.Type: GrantFiled: January 13, 1986Date of Patent: October 7, 1986Assignee: Alco Chemical CorporationInventor: Charles G. Ruffner
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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: 4613646Abstract: A surface-treating water-in-oil emulsion composition, which is essentially wax-free, comprising water, hydrocarbon solvent, film-former, nonionic emulsifier and an alpha-olefin/maleic anhydride polymer.Type: GrantFiled: April 15, 1985Date of Patent: September 23, 1986Assignee: S. C. Johnson & Son, Inc.Inventor: Paul E. Sandvick
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Patent number: 4600761Abstract: Acrylic emulsion copolymers are prepared by emulsion polymerization of (A) a surfactant monomer, (B) an .alpha., .beta.-ethylenically unsaturated carboxylic acid monomer, (C) a nonionic .alpha., .beta.-ethylenically unsaturated monomer and (D) optionally a polyethylenically unsaturated cross-linking monomer. The surfactant monomer is prepared by condensing a polyhydric alcohol or primary amine-containing nonionic surfactant with a monoethylenically unsaturated monoisocyanate. At a low pH the copolymer may be in the form of an aqueous dispersion or latex, but thickens upon neutralization of at least some of the carboxyl groups.Type: GrantFiled: October 1, 1985Date of Patent: July 15, 1986Assignee: Alco Chemical CorporationInventors: Charles G. Ruffner, John M. Wilkerson, III
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Patent number: 4598118Abstract: A coating composition which produces glossy, clear coatings comprises a terpolymer of an anhydride, a higher alphaolefin and either a lower alphaolefin or a mono-alkenyl aromatic compound; an acrylic emulsion polymer and the balance of the composition being an aqueous vehicle.Type: GrantFiled: June 28, 1983Date of Patent: July 1, 1986Assignee: S. C. Johnson & Son, Inc.Inventors: Frederick C. Hansen, Richard A. Kiehlbauch
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Patent number: 4596841Abstract: A composition for bonding metal powders which is used in an amount of at most about 7 parts by weight as the solids content per 100 parts by weight of a metal powder for obtaining a flexible metal powder molding which is capable of tolerating deformation at a radius of curvature of up to 15 mm, the composition comprising as a main monomer an acrylic polymer having a weight average molecular weight of about 50,000 to 1,500,000 which comprises alkyl (meth)acrylate having an average carbon atom number of 3 to 12 in the alkyl moiety, or a mixture of the acrylic polymer and a resin which gives adhesive property, as a main component, the main component having a glass transition temperature in a range of about -70.degree. to -10.degree. C. and an elastic modulus in a range of about 0.05 to 50 kg/cm.sup.2 at 25.degree. C.Type: GrantFiled: February 25, 1985Date of Patent: June 24, 1986Assignee: Nitto Electric IndustrialInventors: Toshiharu Konishi, Yoshiki Kobayashi, Takefumi Shimomura, Yukio Shimizu
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Patent number: 4594385Abstract: This invention relates to coating compositions based on aqueous polyurethane dispersions, as well as the use of the coating compositions for the production of top coats or finishes on flexible substrates, particularly on PVC. The present coating agents contain an aqueous polyurethane dispersion having certain physico-chemical properties and the following composition of the solid substance:(A) from about 30 to 60%, by weight, of a hexane diol-1,6-polyester diol having a molecular weight of from about 500 to 6000;(B) up to about 8%, by weight, of a relatively low molecular weight triol having a molecular weight of from about 91 to 399;(C) from about 3 to 30%, by weight, of one or more mono- or poly-functional compounds bearing cationic and/or anionic groups and/or containing non-ionic polyoxyethylene segments;(D) from about 20 to 50%, by weight, of a diisocyanate corresponding to the following general formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.Type: GrantFiled: August 24, 1982Date of Patent: June 10, 1986Assignee: Bayer AktiengesellschaftInventors: Wilhelm Thoma, Klaus Noll, Klaus Nachtkamp, Josef Pedain, Walter Schroer
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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: 4544723Abstract: Polymers having excellent adherence to film supports such as cellulose acetate are disclosed. The polymers comprise random recurring units having the structure--A).sub.w, --B).sub.x, --C).sub.y and --D).sub.zwherein;A represents polymerized vinyl acetate;B represents a polymerized acrylate or methacrylate monomer capable of copolymerization with vinyl acetate;C represents a polymerized monomer selected from the group consisting of methacrylic acid, itaconic acid and vinylbenzoic acid;D represents a polymerized cationically charged copolymerizable monomer;w represents from 20 to 85 weight percent;x represents from 5 to 65 weight percent;y represents from 5 to 50 weight percent and;z represents from 2 to 10 weight percent.Type: GrantFiled: October 31, 1983Date of Patent: October 1, 1985Assignee: Eastman Kodak CompanyInventors: Donald A. Upson, David J. Steklenski
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Patent number: 4543373Abstract: Quick curing "no bake" foundry core and mold compositions containing metal salt accelerators to provide shaped sand shapes which can be removed from a mold in a period of not more than about 40 seconds.Type: GrantFiled: November 8, 1984Date of Patent: September 24, 1985Assignee: QO Chemicals, Inc.Inventors: Robert Krawiec, James E. Menting
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Patent number: 4539353Abstract: Aqueous compositions which contain a hydrolysed polymaleic anhydride, a complexing agent and a mixture of nonionic and anionic surfactants are suitable for use as assistants in the opening up of cellulose-containing fibre materials.Type: GrantFiled: January 13, 1984Date of Patent: September 3, 1985Assignee: Ciba-Geigy CorporationInventors: Heinz Abel, Christian Guth
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Patent number: 4530955Abstract: A composition for inhibiting the corrosion and scale forming tendencies of water or an aqueous system comprises 2.5 to 80% by weight of zinc (calculated as Zn++) and from 97.5 to 20% by weight of a hydrolyzed copolymer of maleic anhydride with a mono-ethylenically unsaturated monomer or a mixture of monomers, the molar ratio of maleic anhydride to the total of other monomers being from 1:1 to 100:1, the molecular weight of the copolymer being up to 1000.Type: GrantFiled: March 28, 1984Date of Patent: July 23, 1985Assignee: Ciba-Geigy CorporationInventors: David Wilson, John A. Reverter
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Patent number: 4522992Abstract: Terpolymers of anhydrides, aromatic mono-alkenyl monomers and higher 1-alkenes are prepared. Aqueous dispersions of these terpolymers are also prepared.Type: GrantFiled: June 28, 1983Date of Patent: June 11, 1985Assignee: S. C. Johnson & Son, Inc.Inventor: Calvin J. Verbrugge
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Patent number: 4503182Abstract: Products useful as additives for lowering the cloud point of middle distillates have a molecular weight from 1,000 to 50,000, and are obtained by reacting a compound of the formulaR--Z--(CH.sub.2).sub.n NH].sub.m H (I)orHO--CH.sub.2 --R'--NH.sub.2 (II)where R is a monovalent saturated aliphatic radical of 1-30 carbon atoms, Z is --NH-- or oxygen, n is 2 to 4, m is zero or 1 to 4 and R' is a saturated divalent aliphatic radical of 1-18 carbon atoms, with a copolymer comprising recurrent units (A) from an alkyl ester of an unsaturated monocarboxylic acid and/or a vinyl ester of a saturated monocarboxylic acid, recurrent units (B) from diisobutylene and recurrent units (C) from an unsaturated .alpha.,.beta.-dicarboxylic compound.Type: GrantFiled: June 7, 1983Date of Patent: March 5, 1985Assignees: Institut Francais du Petrole, Elf FranceInventors: Jean-Pierre Durand, Francois Dawans, Bernard Damin, Robert L/e/ ger
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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: 4481310Abstract: Acid-curable, condensation-type resins, particularly phenolic resin prepolymers and urea-formaldehyde and/or furfuryl alcohol-formaldehyde modified phenolic resin prepolymers, have improved properties when admixed with a dibasic acid di-ester of the compositionR.sup.1 O.sub.2 C(CH.sub.2).sub.n CO.sub.2 R.sup.2where n is from 1 to 8, R.sup.1 is furfuryl, and R.sup.2 is furfuryl or methyl. The di-esters are preferably added in the amount of 5-35%, by weight of total composition. These compositions are particularly useful in the preparation of sand cores and molds for foundry use which have improved strength and hardness.The dibasic acid di-esters of the compositionR.sup.1 O.sub.2 C(CH.sub.2).sub.n CO.sub.2 R.sup.2where n is from 1 to 8, R.sup.1 is furfuryl, and R.sup.2 is furfuryl or methyl are not reported in the literature and are novel compounds. These di-esters are oily liquids having high boiling points and are particulary useful as resin modifiers, diluents and plasticizers.Type: GrantFiled: June 14, 1983Date of Patent: November 6, 1984Assignee: CL Industries, Inc.Inventor: Wayne D. Woodson
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Patent number: 4478967Abstract: Surfactants which are blocked against surfactant action (identified herein as "photolabile blocked surfactants") by a photolabile protective or masking group but which, on exposure to actinic radiation, become unblocked are provided. Coating compositions in which surfactant is formed on irradiation are provided by blending the photolabile blocked surfactant with polymeric film-forming materials.Compositions containing the photolabile blocked surfactants are useful when employed as protective coatings on various substrates or as the adhesive in a pressure sensitive adhesive tape. Although initially well adhering to a substrate, such compositions may be readily removed from the substrate following exposure of the same to suitable radiation which unblocks the surfactant to permit it to regain its surfactant activity.Type: GrantFiled: August 11, 1980Date of Patent: October 23, 1984Assignee: Minnesota Mining and Manufacturing CompanyInventors: Gilbert L. Eian, John E. Trend
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Patent number: 4478962Abstract: Acid-curable furfuryl alcohol prepolymer binders have improved properties when admixed with a dibasic acid di-ester of the compositionR.sup.1 O.sub.2 C(CH.sub.2).sub.n CO.sub.2 R.sup.2when n is from 1 to 8, R.sup.1 is furfuryl, and R.sup.2 is furfuryl or methyl. The diesters are preferably added in the amount of 5-35% by weight of total composition. These compositions are particularly useful in the preparation of sand cores and molds for foundry use which have improved strength and hardness. These furfuryl esters are also acid-curable and can be used alone as resin binders.Type: GrantFiled: July 5, 1983Date of Patent: October 23, 1984Assignee: CL Industries, Inc.Inventor: Wayne D. Woodson
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Patent number: 4431760Abstract: It has been found that the addition of small amounts of a benzoate or acetate ester of a polyfunctional hydroxy-containing compound to a maleic anhydride-containing resin greatly increases the flowability and processibility of these resins.Type: GrantFiled: March 11, 1982Date of Patent: February 14, 1984Assignee: Standard Oil CompanyInventors: Brandford E. Giddings, Richard J. Jorkasky, II
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Patent number: 4417019Abstract: An improved molding compound comprising a polyolefin modified with an unsaturated carboxylic acid, and has dispersed therein a filler material comprising a mixture of glass fiber and calcium silicate. In one embodiment the molding compound also includes an ethylene-.alpha.-olefin copolymer rubber.Type: GrantFiled: August 5, 1982Date of Patent: November 22, 1983Assignee: TOA Nenryo Kogyo Kabushiki KaishaInventors: Noboru Yamamoto, Keiichi Morikubo, Masato Komatsu, Kazuo Sei
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Patent number: 4405726Abstract: Aluminum perchlorate, cupric perchlorate and chromic perchlorate are used as catalysts for acid catalyzed curable resins.Type: GrantFiled: April 22, 1982Date of Patent: September 20, 1983Assignee: The Quaker Oats CompanyInventor: George S. Everett
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Patent number: 4396734Abstract: Polymer thickeners having a viscosity of at least 10 K, employed in acid media are stabilized with Redox indicators having from 6 to 30 carbon atoms, such as, for example, methylene blue, phenosafranine, pyronine Y, tartrazine, amaranth, methyl orange, an alkali metal salt of diphenylamine sulfonate and malachite green oxalate, which stabilizers are combined with the polymer in a concentration of between about 0.005 to about 1 weight %.Type: GrantFiled: March 20, 1981Date of Patent: August 2, 1983Assignee: GAF CorporationInventors: Earl P. Williams, Donald H. Lorenz
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Patent number: 4390670Abstract: Substantially homogeneous acrylate/maleate copolymers of number average molecular weight of 500 to 5000 are prepared by copolymerizing 35 to 65 mole percent acrylic or methacrylic acid with 65 to 35 mole percent maleic anhydride at 80.degree. to 150.degree. C. in the presence of a polymerization initiator and a chain-transfer solvent such that both the monomers and the formed polymer remain in solution and the mole ratio of the acrylic or methacrylic acid monomer to the maleic anhydride monomer in the solvent is maintained below about 0.2 throughout the polymerization. The copolymers in hydrolyzed form are employed at a level of from about 0.1 to 100 ppm for prevention of alkaline calcium and magnesium scale formation, such as during seawater evaporative desalination.Type: GrantFiled: February 9, 1981Date of Patent: June 28, 1983Assignee: Pfizer Inc.Inventor: Stanley W. Walinsky
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Patent number: 4385159Abstract: The present invention relates to dimethacrylic acid esters of dimethyloltetrahydrofuran and its derivatives having the formula: ##STR1## wherein A and A' individually have the formula: ##STR2## wherein B is a member selected from the group consisting of CH.sub.3 and H, n is an integer from 0 to 5, m is 0 or 1, and p is 0 or 1; their process of preparation and their use as adhesive components of anaerobic adhesive compositions.Type: GrantFiled: March 5, 1982Date of Patent: May 24, 1983Assignee: Henkel Kommanditgesellschaft Auf AktienInventor: Werner Gruber
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Patent number: 4381367Abstract: Paper sizing agents in the form of an aqueous preparation of maleic acid anhydride copolymers of which the anhydride groups had been reacted either with organic or inorganic bases or with primary-tertiary diamines and the reaction products subsequently reacted with epichlorohydrin or with inorganic or organic acids to form salts, the copolymers being made up of polymerised units of(a) from 5 to 75%, by weight, of an aromatic vinyl compound;(b) from 10 to 75%, by weight, of acrylic and/or methacrylic acid C.sub.1 -C.sub.18 alkyl esters;(c) from 5 to 35%, by weight, of maleic acid anhydride;(d) from 0 to 25%, by weight, of other vinyl monomers; and(e) from 0.1 to 10%, by weight, based on the sum of monomers (a) to (d) (which amounts to 100%, by weight), of an unsaturated aldehyde or of an enol ether derived therefrom.The copolymers are produced by radical polymerisation preferably in the absence of solvents.Type: GrantFiled: December 7, 1981Date of Patent: April 26, 1983Assignee: Bayer AktiengesellschaftInventors: Wulf von Bonin, Peter Mummenhoff, Heinz Baumgen
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Patent number: 4369135Abstract: Adhesive compositions providing high bond strength, long shelf life, desirable flow characteristics and end use versatility are prepared by mixing a copolymer of olefinic monomers including maleic anhydride and/or derivatives thereof, plasticizer and at least one monofunctional compound which reacts with the copolymer to render it soluble in the resulting mixture and substantially soluble in the plasticizer. Water based, hot melt and pressure sensitive embodiments of such compositions are included.Type: GrantFiled: December 8, 1980Date of Patent: January 18, 1983Assignee: Monsanto CompanyInventors: Albert W. Morgan, Roland G. Ribaudo
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Patent number: 4361669Abstract: An ammonium salt of the reaction product, in an aqueous medium, of a hydrolyzed styrene-maleic anhydride copolymer and a dispersed hydroxy-alkyl modified starch, is used as a component of a binder composition for coating materials. Film-forming coating compositions comprise, as a binder, said reaction product and an elastomeric or resin latex, and further comprise a paper coating pigment, and barium carbonate and ammonium bicarbonate as scavenging agents. Additionally, said compositions may comprise up to about 25%, by weight of the binder, of ammonium zirconyl carbonate.Type: GrantFiled: August 17, 1981Date of Patent: November 30, 1982Assignee: Champion International CorporationInventors: Wilbur G. Evans, Myrl A. Nisely, Paul D. Harper
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Patent number: 4359325Abstract: Copolymers comprising acrylic ester units, dicarboxylic compounds units and diisobutylene units and whose average molecular weight by number is from 500 to 250,000 are useful for improving the cold-flow properties of lube oils and other hydrocarbon oils such as diesel oil, heavy fuel oil, residual fuel oil and crude petroleum.Type: GrantFiled: December 15, 1980Date of Patent: November 16, 1982Assignee: Institut Francais du PetroleInventors: Francois Dawans, Jean-Pierre Durand, Daniel Binet
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Patent number: 4340531Abstract: Highly concentrated, finely dispersed, dispersant-poor or dispersant-free preparation of active substances in solid form hardly soluble to insoluble in water, dispersible in aqueous media, process for making these preparations and applications of same.The preparation contains:(a) 40 to 90% by weight of at least one active substance hardly soluble or insoluble in water with a mean particle size less than 5 microns,(b) 10 to 60% by weight of at least one water-soluble salt of an acid resin, and(c) 0 to 50% by weight of further additions such as dispersants, wetting agents or diluents or a mixture of these.The preparation is finely disperse and in the form of a powder or granulate.The preparation can be made as follows:(a) a mixture of active substance(s) and water-insoluble acid resin is treated with a solution of alkalies or amines in water or solvents and the liquid then is removed.(b) a mixture of active substance(s) and water-insoluble acid resin is exposed to the vapors of ammonia or volatile amines.Type: GrantFiled: February 1, 1980Date of Patent: July 20, 1982Assignee: Rohner AG PrattelnInventor: Jacques Wegmann
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Patent number: 4338239Abstract: This invention provides a novel polyacrylate thickening agent which is composed of monomers comprising (1) (meth)acrylic acid, (2) glyceryl allyl ether derivative, and optionally (3) one or more other polymerizable monomers.In another embodiment, this invention provides a print paste containing the defined novel polyacrylate thickening agent.Type: GrantFiled: March 30, 1981Date of Patent: July 6, 1982Assignee: Celanese CorporationInventor: Laurence G. Dammann
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Patent number: 4332917Abstract: Method for preparing a polymer alloy which is stable and homogeneous up to high temperatures, from component (a) one or more polymers of high molecular weight, having anhydride groups and component (b) one or more polymers of high molecular weight, having groups which have the ability to interact with hydrogen atoms to form hydrogen bonds, wherein first a solution of component (a) is prepared in an organic solvent, to which solution then component (b) is added, whereas component (a) in dissolved state is protolyzed in whole or in part, prior to or after the addition of component (b) under the action of protolyzing agents, whereupon the solvent is removed; together with the formed products obtained from such a polymer alloy, such as granules, fibres, foils, foam, etc.Type: GrantFiled: December 20, 1979Date of Patent: June 1, 1982Assignee: Nederlandse Centrale Organisatie voor Toegepast-Natuurwetenschappelijk OnderzoekInventors: Adolf Heslinga, Pieter J. Greidanus
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Patent number: 4321180Abstract: An adhesive composition consisting essentially of (A) an alkyloxyalkyl 2-cyanoacrylate represented by the formula, ##STR1## wherein R is an alkylene group having 2 to 4 carbon atoms and R' is an alkyl group having 2 to 6 carbon atoms, or tetrahydrofurfuryl 2-cyanoacrylate, (B) 300 to 2,000 ppm. of water, (C) a radical-polymerization inhibitor, and (D) an anionic-polymerization inhibitor. This adhesive composition is useful as an instant-setting adhesive for metals, plastics, rubbers, glass, wood and the like, is excellent in instant-setting properties, bond strength and storage stability, and neither emits an irritating odor nor causes whitening of the adherend surface.Type: GrantFiled: November 21, 1980Date of Patent: March 23, 1982Assignee: Toagosei Chemical Industry Co., Ltd.Inventors: Kaora Kimura, Kyoji Sugiura