Ester Derived From Dicarboxylic Acid Patents (Class 524/314)
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Patent number: 4783492Abstract: A composition for selectively reducing the permeability of the higher permeability zones of a subterranean reservoir having heterogeneous permeability, such permeability reduction extending continuously from nearby the well as far into the reservoir as is desired. Said composition comprises an aqueous solution or solutions of a water-soluble polymer, a material capable under certain conditions of at least partially cross-linking the polymer to form a gelatinuous precipitate, a water-soluble alkaline material in an amount sufficient to maintain the pH of the polymer-containing composition above the pH at which cross-linking occurs until the composition has passed a desired distance through the reservoir, and a temperature-activated water-soluble acidic material dissolved in the aqueous solution in an amount sufficient to lower the pH of the overall solution to the pH at which cross-linking occurs when said solution is subjected to an elevated temperature.Type: GrantFiled: April 24, 1985Date of Patent: November 8, 1988Assignee: Union Oil Company of CaliforniaInventors: Hoai T. Dovan, Richard D. Hutchins
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Prevention of outgassing in polyvinylsiloxane elastomers by the use of finely divided platinum black
Patent number: 4782101Abstract: A polyvinylsolixane catalyst paste which comprises up to 20,000 ppm of finely divided platinum black which functions to adsorb hydrogen gas generated in the reaction of said catalyst paste when mixed with a base paste containing hydrofunctional polydimethylsiloxane, said base paste further containing a hydrophilic surfactant.Type: GrantFiled: March 25, 1987Date of Patent: November 1, 1988Assignee: Manufacturers Hanover Trust CompanyInventors: Duncan E. Waller, Laurie D. Lovshe -
Patent number: 4774275Abstract: Disclosed is a polypropylene composition comprising (a) 100 parts by weight of a propylene copolymer, (b) 0.01 to 0.5 part by weight of a heat stabilizer and (c) 0.1 to 10 parts by weight of a diphenyl ether compound represented by the following general formula: ##STR1## wherein R.sub.1 stands for an unsubstituted phenyl group or a phenyl group substituted with an alkyl group having 1 to 4 carbon atoms, or an alkyl group having 10 to 30 carbon atoms, R.sub.2 stands for an unsubstituted phenoxy group or a phenoxy group substituted with an alkyl group having 1 to 4 carbon atoms, or an alkyl group having 10 to 30 carbon atoms, and m and n stand for an integer of from 0 to 4, with the proviso that the case where each of m and n is 0 is excluded.Type: GrantFiled: December 4, 1987Date of Patent: September 27, 1988Assignee: Tokuyama Soda Kabushiki KaishaInventors: Shigeo Hisano, Yoji Tamano, Masaji Enokuchi
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Patent number: 4762876Abstract: The present invention provides a novel sealant composition consisting essentially of an admixture of at least one polyolefin resin in particulate form, magnesium oxide, a metal salt of a fatty acid and a suitable liquid carrier. In general, the ingredients are normally present in the range of from about 15 to 25 percent polyolefin, from about 0 to about 6 percent of the metal fatty acid salt, from about 10 to 18 percent magnesium oxide and from about 53 to about 70 percent carrier.Type: GrantFiled: August 13, 1987Date of Patent: August 9, 1988Assignee: Cajon CompanyInventor: James L. Bunyan
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Patent number: 4746697Abstract: An antistatic resin composition prepared by dissolving at least one of lithium nitrate and lithium chloride in cold or hot water, adding a molten surface active agent thereto, mixing them together to give a homogeneous mixture, and blending the same with a molten thermoplastic resin either before or after cooling and solidification. The composition is highly antistatic and gives a film having a high degree of transparency.Type: GrantFiled: March 25, 1986Date of Patent: May 24, 1988Assignee: Kohjin Co., Ltd.Inventors: Naoya Yamaguchi, Sigeyosi Koyabu, Tomoji Mizutani
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Patent number: 4741864Abstract: Discoloration in aromatic carbonate polymers brought about by the addition of halogenated flame retardants is counteracted by the further addition of aliphatic polyester.Type: GrantFiled: October 7, 1985Date of Patent: May 3, 1988Assignee: General Electric CompanyInventors: Roger W. Avakian, Ronald J. Wroczynski
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Patent number: 4740545Abstract: A polyvinyl chloride composition comprising component (1) 100 parts by weight of polyvinyl chloride, component (2) 0.1 to 50 parts by weight of an unsaturated aliphatic dicarboxylic dialkyl ester represented by the general formula I: R.sub.1 OCOCR.sub.3 .dbd.CR.sub.4 COOR.sub.2 wherein R.sub.1 and R.sub.2 independently denote an alkyl group having 1 to 15 carbon atoms and R.sub.3 and R.sub.4 independently denote a group represented by the general formula II: --C.sub.n H.sub.2n+1 wherein n denotes an integer of the value of 0 to 6, and component (3) 0 to 200 parts by weight of a plasticizer which is not said component (2).Type: GrantFiled: November 12, 1986Date of Patent: April 26, 1988Assignee: Terumo Kabushiki KaishaInventor: Yoshinori Ohachi
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Patent number: 4737535Abstract: A tire tread rubber composition which is improved in grip characteristic, steering stability characteristics and low-temperature characteristics, containing 15 to 50 parts by weight of a particular styrene-butadiene rubber obtained by solution polymerization containing polymer chains modified with trifunctional and/or tetrafunctional coupling agents, 50 to 85 parts by weight of at least one rubber selected from the group consisting of emulsion-polymerized styrene-butadiene rubber, natural rubber, synthetic polyisoprene rubber and butadiene rubber, at least one compound as plasticizer selected from the group consisting of a sebacic acid ester, an adipic acid ester and a fatty acid ester, and carbon black having an average particle size of not more than 30 m.mu..Type: GrantFiled: December 17, 1985Date of Patent: April 12, 1988Assignees: Sumitomo Rubber Industries, Ltd., Sumitomo Chemical Company, LimitedInventors: Hiroshi Furukawa, Yuichi Saito, Akio Imai, Nobuyuki Yoshida
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Patent number: 4734448Abstract: A propylene polymer composition having excellent whitening resistance, impact resistance, rigidity and flowability.The propylene polymer composition comprises (A) 100 parts by weight of a propylene polymer or a modified polymer obtained by heat-treating the propylene polymer in an organic peroxides and (B) 0.1 to 1.5 parts by weight of an ester of an aliphatic saturated monocarboxylic acid and a polyhydric alcohol, and the propylene polymer essentially consists of two particular polymer fractions or three particular polymer fractions polymerized over stereoregular catalysts and combinationed in a specific ratio.Type: GrantFiled: June 30, 1986Date of Patent: March 29, 1988Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Toshikazu Kasahara, Makoto Iida
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Patent number: 4726982Abstract: A pressure-sensitive adhesive that has high cohesive strength and adheres permanently to high-solids automotive paint systems preferably comprises a mixture of (1) a crosslinked acrylic copolymer of acrylic acid ester and N-vinyl-2-pyrrolidone, and (2) certain tackifier resins. Useful tackifier resins are poly(isobornylmethacrylate), pentaerythritol ester of rosin, and mixed-aliphatic/aromatic polymeric tackifier resins such as a t-butylated styrene. The tackifier resin preferably has a T.sub.g of at least 30.degree. C., M.sub.n from 300 to 3000, and a solubility parameter from 8 to 9. The novel pressure-sensitive adhesive is particularly useful as a dense surface layer of a composite tape having a foamlike core.Type: GrantFiled: April 10, 1987Date of Patent: February 23, 1988Assignee: Minnesota Mining and Manufacturing CompanyInventors: William J. Traynor, Cheryl L. Moore, Michael K. Martin, John D. Moon
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Patent number: 4716189Abstract: A stick for the application of adhesive material to a substrate, comprising an adhesive dissolved or dispersed in a liquid medium containing an alkali metal or ammonium salt of an aliphatic carboxylic acid having from 8 to 36 carbon atoms, characterized in that the adhesive comprises a mixture of (i) an aqueous dispersion of an optionally carboxylated (C.sub.4 to C.sub.10)-alkyl ester of acrylic acid and (ii) an aqueous dispersion of polyethylene.The stick enables articles to be removably bonded to substrates without leaving a film of adhesive on the substrate after removal.Type: GrantFiled: January 8, 1987Date of Patent: December 29, 1987Assignee: Lingner & Fischer GmbHInventors: Hans J. Gollub, Dieter A. Hechenberger, Renate Moermann
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Patent number: 4710543Abstract: A thermosetting coating composition with excellent weatherability adapted for use as an automotive topcoat which upon curing forms a hard, glossy, durable coating. The coating composition, which reacts in situ during curing, characterized in that the composition comprises a mixture of:(A) acrylic copolymer bearing pendant epoxide functionality and hydroxyl functionality and having a number average molecular weight (M.sub.n) of between about 1000 and about 5000;(B) dicarboxylic acid anhydride comprising at least about 50 weight percent of alkyl hexahydrophthalic anhydride;(C) amine-aldehyde crosslinking agent; and(D) solvent.Type: GrantFiled: August 9, 1982Date of Patent: December 1, 1987Assignee: E. I. du Pont de Nemours and CompanyInventors: Mohinder S. Chattha, Ares N. Theodore
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Patent number: 4701486Abstract: Compositions which are effective in stabilizing polymers against the deteriorative effects of heat are provided comprising (1) a mono-organotin compound or mixture of mono-organotin compounds, (2) a mercaptan-containing organic compound or mixture of mercaptan-containing organic compounds, and, optionally (3) a diorganotin compound or mixture of diorganotin compounds. Also provided are polymer compositions containing said stabilizers and articles of manufacture made from said stabilized polymer compositions.Type: GrantFiled: January 5, 1984Date of Patent: October 20, 1987Assignee: Morton Thiokol, Inc.Inventors: Robert E. Bresser, Karl R. Wursthorn
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Patent number: 4698383Abstract: Liquid copolyesters useful as plasticizers for vinyl resins are provided. The copolyesters are obtained by the esterification of specific aliphatic dicarboxylic acid ester mixtures with 1,4-butanediol and an aliphatic saturated monofunctional alcohol. The copolyesters have acceptably low solidification points; they are resistant to hydrocarbon extraction; and they impart good low-temperature flexibility to PVC compositions plasticized therewith.Type: GrantFiled: March 9, 1987Date of Patent: October 6, 1987Assignee: National Distillers and Chemical CorporationInventors: William J. Mertz, William L. O'Brien
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Patent number: 4690958Abstract: The inclusion of a substantially saturated dicarboxylic acid, anhydride or ester substituted with at least one hydrogen and carbon containing group of at least 30 carbon atoms and optionally an acidic C.sub.2 and/or C.sub.3 olefin polymer or copolymer of molecular weight 500 to 30,000 having an acid number from 30 to 300 wt. % of a resin in a resin based hot melt road marking formulation containing aggregate gives a formulation of improved colour and melt viscosity.Type: GrantFiled: February 21, 1986Date of Patent: September 1, 1987Assignee: Exxon Chemical Patents Inc.Inventors: Olivier H. V. Lacoste, Alain De Regel, Hidenori Fujiwara, Raymond C. C. Yap
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Patent number: 4689429Abstract: Liquid copolyesters useful as plasticizers for vinyl resins are provided. The copolyesters are obtained by the esterification of specific aliphatic dicarboxylic acid ester mixtures with 1,4-butanediol and an aliphatic saturated monofunctional alcohol. The copolyesters have acceptably low solidification points; they are resistant to hydrocarbon extraction; and they impart good low-temperature flexibility to PVC compositions plasticized therewith.Type: GrantFiled: August 7, 1986Date of Patent: August 25, 1987Assignee: National Distillers and Chemical CorporationInventors: William J. Mertz, William L. O'Brien
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Patent number: 4656213Abstract: Acrylic pressure sensitive hot melt adhesives having improved creep resistance at ambient temperatures and desirable melt viscosity at elevated application temperatures are prepared by copolymerizing suitable acrylic and methacrylic acids and alkyl esters with 10-40 percent by weight of an acrylate or methacrylate terminated vinyl aromatic monomer based macromolecular monomer.Compounding these adhesives with suitable tackifiers and plasticizers produces adhesives having low molten viscosity and significantly better shear adhesion, tack, and peel adhesion than is possible with the uncompounded acrylic adhesives.Type: GrantFiled: October 26, 1984Date of Patent: April 7, 1987Assignee: Atlantic Richfield CompanyInventor: James A. Schlademan
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Patent number: 4652601Abstract: The elongation of a rubber-reinforced styrenic polymer is increased by the addition of a small amount of an aliphatic diester such as dioctyl adipate to the rubber-reinforced styrenic polymer. The unexpected increase in elongation is particularly noticable at higher pulling speeds.Type: GrantFiled: November 1, 1985Date of Patent: March 24, 1987Assignee: The Dow Chemical CompanyInventor: Yvan R. D'Hont
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Patent number: 4645788Abstract: The cold resistance of chloroprene rubber can be improved by blending an ester derived from a specified glycol component and a specified fatty acid component without any adverse effect upon the other physical and chemical properties of the rubber. This ester is not extracted with oily matters such as oil or grease, so that the resulting chloroprene rubber composition hardly exhibits a decrease in cold resistance even after extraction with oily matters.Type: GrantFiled: December 6, 1985Date of Patent: February 24, 1987Assignees: Kao Corporation, Toyoda Gosei Co. Ltd.Inventors: Tadaoki Okumoto, Rikizo Nakata, Masayoshi Ichikawa, Masaaki Tsuchihashi, Koichi Sakai
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Patent number: 4640935Abstract: An adduct of a heteroatomic monomer, e.g., gamma-methacryloxypropyl trimethoxysilane and a monoahl, e.g., a monohydroxyl polyalkylene oxide or a polyahl, e.g., a polypropylene glycol, is usefully employed in the preparation of stable copolymer dispersions of the type used in the production of polyurethane foams and polyurethane elastomers.The copolymer dispersion is prepared by addition copolymerization of (1) the adduct with (2) ethylenically unsaturated monomer(s), e.g., styrene or mixture thereof with acrylonitrile, while (1) and (2) are dispersed or dissolved in an excess of a polyahl, i.e., an active hydrogen polyfunctional compound.Type: GrantFiled: May 9, 1985Date of Patent: February 3, 1987Assignee: The Dow Chemical CompanyInventors: Thomas E. Fisk, Dwight K. Hoffman
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Patent number: 4618630Abstract: An antistatic additive for polymers, particularly polyurethanes is disclosed comprising an ionizable metal salt and an enhancer comprising a non-ionizable salt or ester of an organic acid.Type: GrantFiled: July 2, 1985Date of Patent: October 21, 1986Assignee: The Dow Chemical Co.Inventors: Thomas M. Knobel, Earl E. Kennedy, Mary A. Walker
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Patent number: 4604418Abstract: The invention relates to a process for isocyanurating hexamethylene-diisocyanate containing polyol adduct thereof using a novel catalyst and to a paint composition formed from of the product of the above mentioned process and polyol, and to the composition yielding a paint film showing an excellent light resistance and weather resistance, especially high yellowing resistance.Type: GrantFiled: August 13, 1984Date of Patent: August 5, 1986Assignee: Nippon Polyurethane Industry Co., Ltd.Inventors: Masanori Shindo, Yusuke Aoki, Yosizumi Kataoka, Susumu Enomoto, Minoru Nakamura
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Patent number: 4604413Abstract: According to the invention, a resin composition having an electromagnetic wave shielding effect is provided. The resin composition comprises 35 to 90 wt % of an ABS resin or a mixture of the ABS resin and an AS resin, 1 to 25 wt % of a plasticizer and 5 to 40 wt % of carbon fibers. The carbon fibers are uniformly dispersed in the resin ingredient without being broken or cut at the step of mixing and dispersing the resin components, thus exhibiting improved electromagnetic wave shielding effect.Type: GrantFiled: April 5, 1985Date of Patent: August 5, 1986Assignee: Denki Kagaku Kogyo Kabushiki KaishaInventors: Takeshi Nabeta, Isamu Hanahara
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Patent number: 4602051Abstract: According to the invention, a resin composition having an electromagnetic wave shielding effect is provided. The resin composition comprises 35 to 90 wt % of an ABS resin or a mixture of the ABS resin and an AS resin, 1 to 25 wt % of a plasticizer and 5 to 40 wt % of carbon fibers. The carbon fibers are uniformly dispersed in the resin ingredient without being broken or cut at the step of mixing and dispersing the resin components, thus exhibiting improved electromagnetic wave shielding effect.Type: GrantFiled: August 30, 1984Date of Patent: July 22, 1986Assignee: Denki Kagaku Kogyo Kabushiki KaishaInventors: Takeshi Nabeta, Isamu Hanahara
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Patent number: 4593059Abstract: Compositions comprising an organotin mercaptide, organotin sulfide or mixtures thereof; a diester of an ethylenically unsaturated dicarboxylic acid having one carboxyl group on each carbon atom of the ethenylene group; and, optionally, an organotin carboxylate are useful for stabilizing halogen-containing organic polymers against the deteriorative effects of heat, light and weathering.Type: GrantFiled: November 20, 1984Date of Patent: June 3, 1986Assignee: Morton Thiokol, Inc.Inventors: Keith A. Mesch, Gary M. Conroy
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Patent number: 4584215Abstract: Polyvinylidene fluoride compositions have their flexibility improved by incorporation therewith of a minor proportion of one or more esters formed between at least one aliphatic diol such as 2,2-dimethyl 1,3-propanediol, a polyethylene glycol, propylene glycol, a polypropylene glycol, tetramethyleneglycol, a polytetramethyleneglycol or an aliphatic triol such as glycerol, and a monocarboxylic acid of aliphatic chain containing 2 to 10 carbon atoms or a monocarboxylic acid of aromatic radical such as benzoic acid. Polyvinylidene fluorides of improved flexibility are particularly useful for manufacturing flexible tubes for conveying various fluids such as, for example, hot water, chemical products, hydrocarbons.Type: GrantFiled: March 6, 1985Date of Patent: April 22, 1986Assignee: Institut Francais du PetroleInventors: Anne Bre, Marc Mollard, Maseh Osgan
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Patent number: 4579901Abstract: Compositions are provided comprising a combination of polyphenylene ether resin or a polyphenylene ether resin modified with an alkenyl aromatic resin and a property improving amount of a low viscosity polyester based plasticizing agent.Type: GrantFiled: December 21, 1984Date of Patent: April 1, 1986Assignee: General Electric CompanyInventors: Richard B. Allen, Robert L. Reis
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Patent number: 4548978Abstract: Fast crystallizing polyester molding composition comprising (a) a PET or PET/PBT matrix resin having an inherent viscosity of at least 0.4, (b) polyalkylene oxide soft segments incorporated into the matrix resin, (c) a plasticizer of the formula ##STR1## (d) a crystallization promoter, and (e) a reinforcing or filling material.Type: GrantFiled: February 22, 1985Date of Patent: October 22, 1985Assignee: E. I. Du Pont de Nemours and CompanyInventor: William E. Garrison, Jr.
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Patent number: 4528306Abstract: A soft vinyl chloride resin composition having a light weight and a superior abrasion resistance and lusterless surface is provided, which composition is obtained by blending 100 parts by weight of a vinyl chloride copolymer consisting of 99.0 to 99.95% by weight of vinyl chloride and 1.0 to 0.05% by weight of a polyethylene glycol diacrylate or a polyethylene glycol dimethacrylate both having 4 to 50 polymerization units of ethylene glycol, mainly with (a) 5 to 100 parts by weight of a filler having a specific gravity of 0.7 or less and a compressive strength of 70 Kg/cm.sup.2 or higher and (b) 30 to 150 parts by weight of a plasticizer.Type: GrantFiled: April 20, 1984Date of Patent: July 9, 1985Assignee: Chisso CorporationInventors: Koga Shigehiro, Kanazawa Yoshihisa, Okamoto Takeshi, Yamanouchi Masafumi, Shudo Kazumichi
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Patent number: 4504613Abstract: The ductile impact strength and tensile elongation of flame retardant compositions of a polyphenylene ether resin and a poly(alkenyl aromatic) are upgraded by the addition of only small amounts, typically from about 0.1 to about 10 parts by weight, of high molecular weight polyfunctional esters or low molecular weight saturated polyesters.Type: GrantFiled: August 19, 1983Date of Patent: March 12, 1985Assignee: General Electric CompanyInventors: Visvaldis Abolins, Fred F. Holub
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Patent number: 4477617Abstract: Blends of hydrocarbon polyolefin, reinforcing fiber, acid copolymer of .alpha.-olefin and .alpha.,.beta.-ethylenically unsaturated carboxylic acid and wetting agent are provided wherein the acid copolymer has from 0 to about 90 percent of the acid groups ionized by neutralization with metal ions. Such blends have excellent Izod impact values and fast molding cycles and as such are particularly suitable as molding resins.Type: GrantFiled: July 21, 1982Date of Patent: October 16, 1984Assignee: E. I. DuPont de Nemours and CompanyInventor: Charles V. Murphy
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Patent number: 4455402Abstract: Two stage film-forming polymers having a soft first and a hard second stage are prepared by emulsion polymerizing the first stage and then, in the presence of a coalescent, the second stage. The polymers combine low MFT with superior early block resistance and high temperature hardness.Type: GrantFiled: January 5, 1983Date of Patent: June 19, 1984Assignee: Rohm and Haas CompanyInventors: David R. Amick, Sidney Melamed, Ronald W. Novak
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Patent number: 4451259Abstract: Blood-compatible, chlorine-free polymers such as a flexible, non-toxic, sterilizable polyester plastic formulation may contain from 5 to 70 percent by weight of a blood-extractable ester such as di-2-ethylhexylphthalate, to cause blood which is stored in contact with the polymer to exhibit a surprisingly low hemolysis rate when compared with corresponding polymers which are free of the plasticizer. Accordingly, blood bags, tubing and other medical blood-contacting devices may be advantageously made from these polymers.Type: GrantFiled: December 19, 1979Date of Patent: May 29, 1984Assignee: Baxter Travenol Laboratories, Inc.Inventors: Ulrich C. Geissler, Gerald A. Grode, William J. Stith, Ronald A. Williams
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Patent number: 4436859Abstract: Polynorbornenes are cured with isocyanates optionally in the presence of polyols to yield elastomeric products having improved mechanical properties, particularly improved compression moduli and residual set while retaining the desired rebound elasticity values.Type: GrantFiled: August 7, 1981Date of Patent: March 13, 1984Assignee: Societe Chimique des Charbonnages S.A.Inventors: Claude Stein, Andre Marbach
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Patent number: 4434258Abstract: Filled thermoplastic compositions having enhanced elongation and useful, e.g., as sound-deadening sheeting for automotive carpet, are obtained by blending about 0-50% by weight of an ethylene interpolymer, such as ethylene/vinyl ester, ethylene/unsaturated mono- or dicarboxylic acids or esters of said unsaturated acids, etc.; 0-20% by weight of a plasticizer selected from the group consisting of processing oils, epoxidized oils, polyesters, polyethers, polyether esters and combinations thereof; about 40-90% by weight of filler; from about 0.05 to about 5.Type: GrantFiled: January 15, 1982Date of Patent: February 28, 1984Assignee: E. I. Du Pont de Nemours and CompanyInventors: Frederick G. Schumacher, Walter Yllo
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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: 4425458Abstract: This invention deals with the production and use of a diacid ester formed from the reaction of the diacid and a guerbet alcohol.Type: GrantFiled: April 9, 1982Date of Patent: January 10, 1984Assignee: Henkel CorporationInventors: Robert A. Lindner, Anthony O'Lenick
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Patent number: 4421885Abstract: A plasticizer for halogen-containing resins which is composed of at least one compound expressed by the general formula ##STR1## wherein R.sub.1 represents an aromatic hydrocarbon group containing 1 or 2 aromatic rings or an alicyclic hydrocarbon group having 4 to 37 carbon atoms, R.sub.2.sup.1, R.sub.2.sup.2, R.sub.2.sup.3 and R.sub.2.sup.4 are identical or different and each represents an aliphatic hydrocarbon group having 2 to 17 carbon atoms, R.sub.3.sup.1, R.sub.3.sup.2, R.sub.3.sup.3 and R.sub.3.sup.4 are identical or different and each represents an aliphatic hydrocarbon group having 2 to 22 carbon atoms, an aromatic hydrocarbon group or a heterocyclic group, each of n.sub.1, n.sub.2, n.sub.3 and n.sub.4 is 0 or an integer of 1 to 20 and the sum of these is 1 to 20, and each of m.sub.1, m.sub.2, m.sub.3 and m.sub.4 is 0 or 1 and the sum of these is 1 to 4. The plastizer has superior thermal stability, processability and compatibility.Type: GrantFiled: September 17, 1981Date of Patent: December 20, 1983Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Katsuhiro Tsuda, Hisao Tanaka, Michio Nagae, Yasuhiko Imanaga
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Patent number: 4421619Abstract: Thermally coalescible acrylic resin dispersions comprising particles of single-phase, surfactant-free, random acrylic polymers or copolymers, containing at least 80% by weight of acrylic units, dispersed in a surfactant-free medium that comprises a compatible liquid plasticizer that is nonvolatile at room temperature and is not a monomer of any of the polymeric components. Incorporation of a photopolymerizable, ethylenically unsaturated compound provides photosensitive dispersions useful for making relief and planographic printing plates, photoresists, and the like.Type: GrantFiled: November 2, 1981Date of Patent: December 20, 1983Assignee: E. I. Du Pont de Nemours & Co.Inventor: Boynton Graham
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Patent number: 4404296Abstract: A polyol gel is made from 15-62 wt. % (based on the sum of polyurethane matrix plus dispersing agent) of a high molecular weight covalently cross-linked polyurethane matrix; 85-38 wt. % (based on the sum of polyurethane matrix plus dispersing agent) of a liquid dispersing agent which is firmly bonded to the matrix; and optionally, active ingredients, fillers, additives, catalysts, and mixtures thereof. The liquid dispersing agent is a polyhydroxyl compound having a molecular weight of between 1,000 and 12,000 and an OH number between 20 and 112. This dispersing agent should have virtually no hydroxyl compounds having a molecular weight below 800 present. These gel compositions may be used to make mold impressions and highly stable active-ingredient releasing compositions.Type: GrantFiled: January 22, 1982Date of Patent: September 13, 1983Assignee: Bayer AktiengesellschaftInventor: Dietmar Schapel
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Patent number: 4391944Abstract: A copolymer comprising (a) vinyl chloride or a mixture of vinyl chloride and a monomer copolymerizable therewith and (b) 1,2-polybutadiene oligomer and/or epoxidized 1,2-polybutadiene oligomer. The plasticized copolymer can be molded into soft moldings having a low compression set and high tensile and tear strengths. Also, by the incorporation of the copolymer into vinyl chloride homopolymer or copolymers, hard moldings having delustered surface can be obtained without conducting delustering operation.Type: GrantFiled: September 15, 1981Date of Patent: July 5, 1983Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Kazumasa Yamane, Masahiro Kobayashi, Masaniko Takada
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Patent number: 4390649Abstract: A molding composition of a terephthalate polyester such as PET, a plasticizing material and a crystal nucleating agent. The nucleating agent is a powdered metal hydroxide such as aluminum hydroxide, which raises the T.sub.cc of the composition and permits reduced cycling time and enables higher molecular weight polymer to be used in the molding process.Type: GrantFiled: February 18, 1982Date of Patent: June 28, 1983Assignee: Allied CorporationInventor: Shaul M. Aharoni
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Patent number: 4386167Abstract: Polyisocyanurate polymers containing pendant urea groups are prepared by polymerization of polyisocyanates in organic solvents employing appropriate trimerization catalysts and then end-capping the polyisocyanurate polymer with ammonia or ammonium hydroxide. These end-capped polyisocyanurate polymers which contain pendant urea groups are dispersed in polyols to yield fine particulate dispersions. Cellular and non-cellular urethane products prepared using these dispersions displayed improved physical properties.Type: GrantFiled: April 19, 1982Date of Patent: May 31, 1983Assignee: BASF Wyandotte CorporationInventors: John T. Patton, Jr., Thirumurti Narayan
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Patent number: 4384063Abstract: Polyphenylene ether resins having improved properties are described. These resins contain minor effective amounts of an antistatic agent comprising N,N-bis-(2-hydroxyethyl)-N-octyl-N-methyl ammonium para toluene sulfonate salt, preferably with polyethylene glycol ester also present. In addition to serving as an enhancer for the antistatic agent, the polyethylene glycol ester also improves such properties as odor and impact strength.Type: GrantFiled: August 11, 1981Date of Patent: May 17, 1983Assignee: General Electric CompanyInventor: Bruce A. Luxon
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Patent number: 4359551Abstract: A hot-melt pressure-sensitive adhesive composition comprising (a) 100 parts by weight of a specific grafted block copolymer material formed by the graft reaction of at least one block copolymer comprising at least one polybutadiene or polyisoprene block and at least two polystyrene blocks with at least one unsaturated carboxylic acid monomer and/or derivative monomer thereof and (b) 50 to 250 parts by weight of a specific tackifier mixture consisting of a tackifier S comprising at least 50% by weight of a terpene resin having a softening point of 60.degree. C. or more and a tackifier L comprising at least 50% by weight of a terpene resin having a softening point of 30.degree. C. or less and having an S/L mixing weight ratio of 9/1 to 3/7, and optionally 1 to 50 parts by weight of a softening agent has been found to be excellent in holding power especially for paper.Type: GrantFiled: December 18, 1980Date of Patent: November 16, 1982Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Yoshikazu Suda, Haruhisa Nagano, Shigeyuki Miyata, Akio Yamori
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Patent number: 4355130Abstract: A polyalphaolefin extended polyurethane system comprising the reaction product of an isocyanate terminated polyisocyanate with a polyol in the presence of a polyalphaolefin and, optionally, a liquid ester coupling agent, said polyurethane systems being applicable for use as reenterable encapsulants for sealing insulated electrical devices, as hard volume encapsulants and as general polyurethane elastomers.Type: GrantFiled: October 16, 1981Date of Patent: October 19, 1982Assignee: Communications Technology CorporationInventor: Richard E. Heinze
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Patent number: 4351756Abstract: The inclusion of a small amount of an ester-type plasticizer in the rubber polymerization recipe in the production of rubber-modified high nitrile copolymer resins produces resins having markedly improved impact resistance at both low and high temperatures.Type: GrantFiled: June 2, 1980Date of Patent: September 28, 1982Assignee: SOHIOInventors: Dorothy C. Prem, June T. Duke, Ralph E. Isley
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Patent number: 4349503Abstract: A composition and a method to crystallize the composition. The composition comprises a linear saturated polyester, preferably poly(ethylene terephthalate) and from 0.05 percent to 0.6 percent of sodium nitrite. The composition can contain a plasticizer, impact modifier and a filler.Type: GrantFiled: May 15, 1981Date of Patent: September 14, 1982Assignee: Allied CorporationInventor: Shaul M. Aharoni
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Patent number: 4348496Abstract: A pastable emulsion polymer comprised of carboxylated monomer/vinyl chloride/vinyl acetate terpolymer having improved strength of adhesion produced by emulsion copolymerization and containing, per polymer weight,from 60% to 98% by weight of vinyl chloride monomer units,from 1% to 29% by weight of vinyl acetate monomer units, andfrom 1% to 15% by weight of carboxyl-containing monomerunits selected from the group consisting of olefinically-unsaturated monocarboxylic acids, monoallyl esters of non-ethylenically unsaturated dicarboxylic acids, and monovinyl esters of non-ethylenically-unsaturated dicarboxylic acids. The terpolymers are manufactured by the copolymerization of vinyl chloride, vinyl acetate, olefinically-unsaturated monocarboxylic acids and/or monoallyl esters and/or monovinyl esters of non-ethylenically unsaturated dicarboxylic acids in an aqueous emulsion. The pastable terpolymers, after empasting are used for coating flexible sheet-like articles.Type: GrantFiled: January 26, 1981Date of Patent: September 7, 1982Assignee: Wacker-Chemie GmbHInventors: Rudolf Puhe, Werner Frey, Gunter Weinhold
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Patent number: 4340530Abstract: A composition comprises 100 parts by weight of a vinyl chloride type resin and 25 to 200 parts by weight of a plasticizer, the vinyl chloride type resin being composed of 1 to 90% by weight of tetrahydrofuran-insoluble gel fraction and the balance of tetrahydrofuran-soluble fraction. This composition gives a rubbery elastomer having an excellent heat deformation resistance and an excellent matt finish and a small compression permanent set. Though it is close to rubber in properties, the composition has a moldability and processability similar to those of conventional thermoplastic resins, and can be formed into a sheet for interior material of automobile, a packing, a tube, etc.Type: GrantFiled: July 2, 1980Date of Patent: July 20, 1982Assignees: Sumitomo Bakelite Company Limited, Sumitomo Chemical Company LimitedInventors: Takeichi Higashiguchi, Masasuke Fukuoka, Tomoyuki Emura, Yasuhiro Moriuchi