Group Iia Metal (be, Mg, Ca, Sr, Ba) Patents (Class 524/400)
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Patent number: 5073584Abstract: Proposed is a processing additive for halogen-containing polymers, in particular for polyvinyl chloride, with a content of a synthetic, crystalline, finely particulate alkali metal alumo silicate containing 13 to 25 percent by weight of bound water, which--in its anhydrous form--is of the composition (0.7-1.1) Me.sub.2 O.Al.sub.2 O.sub.3 .times.(1.3-2.4) SiO.sub.2, Me standing for an alkali metal, wherein the alkali metal alumo silicate is present in combination with at least one isocyanuric acid derivative of the formula ##STR1## wherein each n stands for an integer from 0 to 5, preferably from 0 to 3, each X represents H or a straight or branched alkyl group having 1 to 6 carbon atoms, preferably 1 or 2 carbon atoms, and each R is --OH or --COOH, and wherein the n's, X's and/or R's preferably have the same meaning, as well as halogen-containing polymers stabilized with use of this combination.Type: GrantFiled: December 18, 1989Date of Patent: December 17, 1991Assignee: Chemson Polymer-Additive Gesellschaft m.b.H.Inventors: Peter Meszaros, Peter Stern
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Patent number: 5070128Abstract: Heat-stabilized, non-yellowing chlorinated polymers having extended working ranges, notably PVC polymers and copolymers, contain effective stabilizing amounts of (a) at least one organozinc compound, (b) at least one organic calcium, barium, magnesium or strontium compound, and (c) at least one sodium .beta.-diketonate.Type: GrantFiled: April 4, 1990Date of Patent: December 3, 1991Assignee: Rhone-Poulenc ChimieInventor: Michel Gay
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Patent number: 5066694Abstract: This invention relates to a pressure sensitive adhesive compositions which include an emulsion of a metal neutralized sulfonated copolymer of isoprene/sodium styrene sulfonate, wherein the neutralized sulfonated copolymer has about 5 to about 250 meq. of neutralized sulfonate groups per 100 grams of the neutralized sulfonated copolymer, and less than about 50 parts by weight of an emulsion of a preferential polar plasticizer, and less than about 300 parts by weight of an emulsion of a hydrocarbon tackifying resin of a petroleum or coal tar distillate, having about 4 to 12 carbon atoms, wherein the hydrocarbon resin is composed of aliphatic dienes and monoolefins per 100 parts by weight of the neutralized sulfonated copolymer.Type: GrantFiled: September 27, 1990Date of Patent: November 19, 1991Assignee: Exxon Research and Engineering CompanyInventors: Pawan K. Agarwal, Thomas Pugel
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Patent number: 5066685Abstract: Polyol compositions suitable for use in the production of fibre-reinforced rigid polyurethane foam comprises (a) at least one amino polyol obtainable by reacting an alkylene oxide with an initiator which has a functionality greater than 2, at least one aromatic ring and at least one amino nitrogen atom and (b) at least 3% by weight, based on the total weight of (a) plus (b), of an adduct of a tertiary amine and an alkylene carbonate. These novel polyol compositions provide foam-forming formulations of suitable viscosity without the need to use a CFC blowing agent and also combine high reactivity with a broad reactivity profile.Type: GrantFiled: February 22, 1990Date of Patent: November 19, 1991Assignee: ARCO Chemical Technology, Inc.Inventors: Pavel Hanak, Philippe Motte, Patrice Gosset
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Patent number: 5063264Abstract: A first crystalline polyolefin composition is provided, comprising 100 parts by weight of a crystalline polyolefin, (A) from 0.001 to 1 part by weight of a fluorophosphite compound represented by formula (I): ##STR1## wherein R represents an alkylidene group having from 1 to 4 carbon atoms or a sulfur atom; Ar.sub.1 and Ar.sub.2, which may be the same or different, each represents an alkylarylene group or a cycloalkylarylene group; and n represents 0 or 1, and (B) from 0.001 to 1 part by weight of at least one of (1) an aliphatic monocarboxylic acid salt with lithium or sodium, (2) a dithiocarbamic acid salt with lithium, sodium or potassium, (3) a 2-mercaptobenzothiazole salt with lithium, sodium or potassium, (4) a 2-mercaptobenzimidazole salt with lithium, sodium or potassium and (5) a benzotriazole salt with lithium, sodium or potassium.Type: GrantFiled: August 20, 1990Date of Patent: November 5, 1991Assignee: Chisso CorporationInventor: Hirokazu Nakajima
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Patent number: 5061743Abstract: Certain hydroxy alkanoate polymers, such as 3-hydroxybutyrate polymers, when obtained by solvent extraction from fermentation masses, can have long cycle times during thermal processing due to a low rate of crystallization. A combination of (a) an organophosphonic or organophosphoric acid or ester with (b) an oxide, hydroxide, or carboxylate of a metal of Groups I to V is an effective nucleating agent.Type: GrantFiled: May 30, 1990Date of Patent: October 29, 1991Assignee: Imperial Chemical Industries plcInventors: John M. Herring, Andrew Webb
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Patent number: 5055498Abstract: The solid marking composition of the invention includes from about 15% up to about 50% by weight of a polyethylene resin component having a specific gravity in the range of from about 0.95 up to about 0.96. In addition, the composition of the invention includes from about 20% up to about 55% by weight of a compatible plasticizer, and from about 3% up to about 20% by weight active material of a pigment. Optionally, the composition may include a pigment dispersing agent, such as a fatty acid. Further additives which may advantageously employed include extenders or fillers, oxidation stabilizers, UV stabilizers, and mold release agents. The composition of the invention is fabricated into marking instruments having unexpectedly improved eraseability, ease of application, barrel breaking strength, and tip breaking strength, while eliminating bloom entirely.Type: GrantFiled: June 19, 1990Date of Patent: October 8, 1991Assignee: Binney & Smith Inc.Inventor: Armand E. Brachman
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Patent number: 5051460Abstract: A stabilized melt processable composition containing a halopolymer (e.g., an ethylene chlorotrifluoroethylene copolymer) and an effective stabilizing amount of an ester of a (4-hydroxy-5-alkylphenyl) alkanoic acid and at least one phosphite. Such compositions may be melt processed and extruded at high temperatures (e.g., up to 305.degree. C.) and retain their stability. These compositions are especially desirable in wire and cable coating applications.Type: GrantFiled: September 18, 1989Date of Patent: September 24, 1991Assignee: Ausimont, U.S.A., Inc.Inventors: Sheldon J. Kirsch, Chii-Shu Chen
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Patent number: 5049630Abstract: Thermoplastic polymer compositions of improved melt stability comprise a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon, a partially zinc-neutralized acidic polymer containing moieties of an .alpha.-olefin and an .alpha., .beta.-ethylenically unsaturated carboxylic acid and metal salt wherein the metal is aluminum, magnesium or scandium.Type: GrantFiled: January 29, 1990Date of Patent: September 17, 1991Assignee: Shell Oil CompanyInventor: Edgar J. Smutny
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Patent number: 5037870Abstract: The invention relates to the stabilization of organic polymers against degradation by light by the addition of (a) a light stabilizer of the formula ##STR1## in which R is hydrogen or methyl and A is an alkylene radical, and (b) an oxide, hydroxide, carboxylate, enolate or phenate of magnesium or zinc.Type: GrantFiled: August 20, 1990Date of Patent: August 6, 1991Assignee: Ciba-Geigy CorporationInventor: Francois Gugumus
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Patent number: 5037924Abstract: According to this invention, there is provided a denture adhesive which is a mixed partial salt of a terpolymer of maleic anhydride, (MA) a C.sub.1 -C.sub.4 alkyl vinyl ether (AVE) and isobutylene (IB) vinyl ether, having a weight average molecular weight of about 30,000 to 400,000, preferably about 50,000 to 350,000. The terpolymer has its components in the molar ratio of MA:AVE:IB of about 1:0.4-0.9:0.1-0.6, preferably about 1:0.5-0.8-0.2-0.5.Type: GrantFiled: July 25, 1990Date of Patent: August 6, 1991Assignee: GAF Chemicals CorporationInventors: Mohammed Tazi, Robert B. Login, Yoon T. Kwak, Balgopal Gangadharan, Rama K. Haldar
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Patent number: 5032632Abstract: A composition of a copolymer of ethylene and vinyl alcohol, 0.01 to 0.5 weight percent of a monovalent or divalent metal salt of an aliphatic carboxylic acid having 3 to 9 carbon atoms and 0.05 to 0.5 weight percent of a hindered phenolic antioxidant exhibits improved stability toward oxidative gel formation at elevated temperatures.Type: GrantFiled: May 15, 1990Date of Patent: July 16, 1991Assignee: E. I. du Pont de Nemours and CompanyInventor: Ronald L. Saxton
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Process for producing aromatic polysulfone molding compound improved in mold-release characteristics
Patent number: 5032336Abstract: A process for producing an aromatic polysulfone molding compound improved in mold-release characteristics by adding a predetermined amount of metal soap to aromatic polysulfone resin, wherein pellets composed of an aromatic polysulfone resin and a specific amount of metal soap, and otherwise similar pellets but containing no metal soap are prepared separately by melt-mixing, and these two kinds of pellets are dry-blended together so as to satisfy a predetermined condition.Type: GrantFiled: November 29, 1989Date of Patent: July 16, 1991Assignee: Sumitomo Chemical Company, LimitedInventors: Kuniaki Asai, Kazuo Hieda -
Patent number: 5032638Abstract: A suture coating comprising a copolymer having about 60 to 80 weight percent of .beta.-hydroxybutyrate linkages is disclosed. The remaining linkages can be at least .beta.-hydroxyvalerate. In one embodiment, the coating is the copolymer combined with a stearoyl lactylate having the formula: ##STR1## wherein X is at least two, and R is an alkaine-earth metal.Type: GrantFiled: September 5, 1986Date of Patent: July 16, 1991Assignee: American Cyanamid CompanyInventors: David W. Wang, Leonard T. Lehmann
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Patent number: 5021474Abstract: Moulding compositions comprising(a) a melamine/formaldehyde resin, a melamine/phenol/formaldehyde resin or a mixture of said resins,(b) organic and/or inorganic fillers,(c) a lubricant, and(d) 0.1 to 2% by weight, based on the total composition, of 3-chloro-1,2-propanediol as latent hardener,are suitable for the production of mouldings by injection moulding. The latent hardener employed permits extremely short cycle times coupled with long residence times at the cylinder temperature of the injection moulding machine. The moulding compositions are distinguished at the same time by very good flow properties.Type: GrantFiled: February 26, 1990Date of Patent: June 4, 1991Assignee: Ciba-Geigy CorporationInventors: Peter Gunther, Hermann O. Wirth, Wilhelm Endlich
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Patent number: 5002990Abstract: Quickly crystallizing polyester compositions containing as nucleating agent a compound having the formula: ##STR1## wherein: Me is an alkali metal or alkaline-earth metal;X is a group selected from --CH.sub.2 --, --CO--, --CH.sub.2 --CO--, and --CH(CH.sub.3)--CO);p is 0 or 1;Ar is a single or condensed aromatic ring, or Ar represents 2 or more aromatic nuclei linked either by a simple bond or by an --O--, --S--, --SO.sub.2 --, --SO--, --CO--, --CS--, or --NH-- group;R, R.sub.1, R.sub.2 may be, independently of each other, H, a linear or branched C.sub.1 -C.sub.6 alkyl radical, optionally substituted with halogen atoms or C.sub.1 -C.sub.6 alkoxy groups;Y is H or --CH.sub.3 ;m is 1 when Y is --CH.sub.3, or a number from 1 to 5 when Y.dbd.H;n is a number from 1 to 500; andZ is --H, a C.sub.1 -C.sub.18 alkyl, benzyl, allyl, glycidyl, acetyl, --CO--NH--R.sub.3 or --CO--NH--R.sub.4 --NCO group.Type: GrantFiled: February 27, 1989Date of Patent: March 26, 1991Assignee: Montefibre S.p.A.Inventors: Catia Bastioli, Vittorio Bellotti, Nello Gazzarata
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Patent number: 4968739Abstract: A composition for producing a metallic sintered body consisting essentially of a mixture of a powered metal having an average particle size of not more than 50 microns with a lactone resin having a relative viscosity value in the range of from 1.15 to 3.20 is disclosed.The composition has excellent properties such as mechanical strength of a green body thereof, and only a short time being necessary for removal or elimination of binder in comparison with conventional sintering compositions.Furthermore, the binder in the present composition is substantially composed of a single component; accordingly, manufacturing process control can be simplified by use of the lactone resin.Furthermore, a method for producing a metallic sintered body using such composition is also disclosed.Type: GrantFiled: November 29, 1989Date of Patent: November 6, 1990Assignee: Daicel Chemical Industries, Ltd.Inventors: Michio Nakanishi, Takuya Miho
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Patent number: 4963594Abstract: Vinyl chloride based polymers are heat/color stabilized by formulating therewith a stabilizing amount of (i) at least one organozinc derivative, (ii) at least one organic derivative of a metal from Group IIa of the Periodic Table, and (iii) at least one thiomalic acid diester.Type: GrantFiled: July 21, 1989Date of Patent: October 16, 1990Assignee: Rhone-Poulenc Specialites ChimiquesInventor: Michel Gay
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Patent number: 4954177Abstract: A finely-divided ceramic solid dispersion of low viscosity is obtained using as a dispersant an organic compound containing at least one carbonyl C-17-alkyleneoxy group, for example a derivative of 12-hydroxystearic acid or ricinoleic acid or low molecular weight polymeric derivative thereof. The composition may be dry or may be dispersed in an organic medium such as an aliphatic or aromatic hydrocarbon.Type: GrantFiled: August 31, 1988Date of Patent: September 4, 1990Assignee: Imperial Chemical Industries PLCInventor: John D. Schofield
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Patent number: 4954557Abstract: In a process for preparing a molded article by melt-molding a mixture of (A) a hydrolyzed ethylene-vinyl acetate copolymer having an ethylene content of 20 to 80% by mole and a degree of hydrolysis in the vinyl acetate units of at least 90% by mole and (B) an olefin resin, the improvement which comprises melt-molding said mixture in the presence of a hydrotalcite solid solution (C) having the formula (I):{(M.sub.1.sup.2+).sub.yl (M.sub.2.sup.2+).sub.y2 }.sub.1-x (M.sup.3+).sub.x (OH).sub.2 (A.sup.n-).sub.x/n.mH.sub.2 O (I)According to the process of the present invention, long run processability during melt-molding can be remarkably improved, and the obtained molded article has excellent qualities, e.g., the film has few fish eyes.Type: GrantFiled: January 25, 1989Date of Patent: September 4, 1990Assignees: Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha, Kyowa Kogyo Kabushiki KaishaInventors: Teruo Iwanami, Shigeo Miyata, Takamasa Moriyama
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Patent number: 4952625Abstract: A process for producing a thermoplastic ultrahigh-molecular-weight polyethylene composition having excellent moldability, which comprises mixing at room temperature to 100.degree. C. an ultrahigh-molecular-weight polyethylene having an average molecular weight of at least 2,000,000 with an amount, effective for acting as a solvent to said polyethylene and improving the flowability of the polyethylene, of a flowability improver selected from the group consisting of (a) styrene, (b) alpha-methylstyrene, (c) chlorinated styrene and (d) a mixture of (a) and (b), wherein the amount of the flowability improver is 3 to 30 parts by weight for styrene and 3 to 30 parts by weight for alpha-methylstyrene and styrene, per 100 parts by weight of the ultrahigh-molecular-weight polyethylene, and optionally admixing at least one member of the group consisting of a pigment, carbon black, a stabilizer, a lubricant and an inorganic filler.Type: GrantFiled: July 10, 1989Date of Patent: August 28, 1990Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Tomoo Shiohara, Hiroshi Abe
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Patent number: 4942211Abstract: The invention relates to organopolysiloxane compositions which can be crosslinked to form elastomers with the elimination of alcohols and are stabilized by salts of the second main group or sub-group with branched-chain carboxylic acids having from 5 to 15 carbon atoms.Type: GrantFiled: January 6, 1989Date of Patent: July 17, 1990Assignee: Wacker-Chemie GmbHInventors: Oswin Sommer, Norman Dorsch, Erhard Bosch, Alfred Kurz
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Patent number: 4925883Abstract: A vinyl halide resin (PVC) flooring composition having reduced water absorption containing polyhydric alcohol, metal salt stabilizer, filler and an aromatic carboxylic acid such as benzoic, methylbenzoic or naphthoic acid as an anti-water absorption agent. The compositions may be employed for dramatic improvement against swelling and buckling of flooring tile and sheet.Type: GrantFiled: May 30, 1989Date of Patent: May 15, 1990Assignee: Synthetic Products CompanyInventor: Paulette Baker
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Patent number: 4925887Abstract: Moulding compositions comprising(a) a melamine/formaldehyde resin, a melamine/phenol/formaldehyde resin or a mixture of said resins,(b) organic and/or inorganic fillters,(c) a lubricant, and(d) 0.1 to 2% by weight, based on on the total composition, of 3-chloro-1,2-propanediol as latent hardener,are suitable for the production of mouldings by injection moulding. The latent hardener employed permits extremely short cycle times coupled with long residence times at the cylinder temperature of the injection moulding machine. The moulding compositions are distinguished at the same time by very good flow properties.Type: GrantFiled: April 7, 1989Date of Patent: May 15, 1990Assignee: Ciba-Geigy CorporationInventors: Peter Gunther, Hermann O. Wirth, Wilhelm Endlich
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Patent number: 4920163Abstract: A paint for use on surfaces subject to lightning strikes includes a film-forming binder and a pigment, the pigment comprising at least one alkali metal salt or alkaline earth metal salt with a low first ionization potential, of a mono- or polyfunctional organic acid, carbonic acid or a polymer having an acidic group, the pigment being present in an amount sufficient to render the paint ionizable under the action of a strong electric current.Type: GrantFiled: July 22, 1988Date of Patent: April 24, 1990Assignee: Centre Nationale d'Etudes SpatialesInventors: Jean-Claude Guillaumon, Louis J. C. Blet
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Patent number: 4910247Abstract: A composition containing an adhesive suitable for affixing dentures or ostomy devices to a mucous membrane, which adhesive is a mixture composed of(a) 75-25 wt. % of a blend comprising a divalent calcium salt and a monovalent sodium salt of a lower alkyl vinyl ether/maleic acid copolymer wherein the concentration of Ca is between about 10 and 15 wt. % of the blend; Na is between about 1.5 and about 4 wt. % of the blend and --COOH is between about 9 and about 25 wt. % of the blend;(b) 0-10 wt. % of a lower alkyl vinyl ether/maleic acid auxiliary metal salt wherein said metal is divalent magnesium and/or monovalent potassium and wherein said auxiliary metal represents between about 1.5 and about 15 wt. % of said auxiliary metal salt compound and(c) 25-75 wt. % of a stearic acid metal salt wherein said metal salt is magnesium stearate containing from 0% to about 75% sodium stearate.The invention also relates to the use of said composition as an adhesive used in association with mucous membranes.Type: GrantFiled: March 27, 1989Date of Patent: March 20, 1990Assignee: GAF Chemicals CorporationInventors: Rama K. Haldar, Balgopal Gangadharan, Ratan K. Chaudhuri
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Patent number: 4898902Abstract: A binder composition for injection molding of at least one of metal powder and ceramic powder which comprises polyoxyethylene/polyoxypropylene condensation polyether as the main component together with from 10 to 100 parts by weight of at least one auxiliary component selected from the group consisting of natural waxes, synthetic waxes, fatty acids and esters per 100 parts of said polyoxyethyene/polyoxypropylene condensation polyether.Type: GrantFiled: June 27, 1988Date of Patent: February 6, 1990Assignees: Adeka Fine Chemical Co., Ltd., Asahi Denka Kogyo Kabushiki KaishaInventors: Tomoaki Nagai, Hideyuki Yamanashi, Hideo Hachimori
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Patent number: 4898904Abstract: Poly(arylene sulfide) resins are modified by melt mixing a resin with a basic additive to form a resin product composition. The basic additive is selected from the group consisting of inorganic hydroxides, inorganic oxides and organic metal salts wherein the metals are from Group IA, IIA, or IIB and the salts are of carboxylic acids and phenols. The product compositions are suitable for injection molding, film forming and fiber spinning processes.Type: GrantFiled: April 4, 1988Date of Patent: February 6, 1990Assignee: Phillips Petroleum CompanyInventors: Michael C. Yu, Lacey E. Scoggins, Jerry O. Reed
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Patent number: 4857574Abstract: Stable dispersion of addition (co)polymers in an inert relatively non-polar organic hydrocarbon liquid, the dispersed particles embracing both a (co)polymer and a polymer containing an ethylenically unsaturated monomer. The (co)polymers are substantially composed of:(a) 5 to 100 mole % of styrene and/or methyl styrene;(b) 0 to 95 mole % of alkyl methacrylate having 1 or 2 carbon atoms in the alkyl group and/or alkoxyalkylene methacrylate having 1 or 2 carbon atoms in the alkoxy group and the alkylene group;(c) 0 to 40 mole % of alkyl methacrylate having 3 to 12 carbon atoms in the alkyl group;(d) 0 to 40 mole % of hydroxalkyl methacrylate having 2 to 12 carbon atoms in the alkyl group and/or glycidyl methacrylate; and(e) 0 to 20 mole % of m methacrylic acid.The (co)polymers are grafted to a polymer of a number average molecular weight of 2000 to 10.Type: GrantFiled: February 11, 1988Date of Patent: August 15, 1989Assignee: Akzo nvInventor: Roelof Buter
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Patent number: 4851153Abstract: A conductive high molecular composition which comprises a non-conductive polymer component incorporated with a metal salt, characterized in that the melt salt is a salt of a metal with an acid substance selected from an organic carboxylic acid, rosin and a rosin derivative. This composition has an insulating property in the normal state but functions as an electroconductive material only in the event it is interposed between slightly spaced metals and heated. Thus, the composition can be used not only as an insulating binder but also for imparting conductivity only in the desired spots of electronic parts, keeping the other areas of the parts electrically insulated. The composition thus possessing a specific dual function is particularly useful in the electronic industry field.Type: GrantFiled: May 19, 1987Date of Patent: July 25, 1989Assignee: Harima Chemicals, Inc.Inventors: Masanao Kono, Yoshihiro Hasegawa, Yasutaka Nishi, Yasuyoshi Sanada, Tatsuji Mizuta, Ryo Inoue, Shinsuke Ohara
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Patent number: 4849469Abstract: Thermoplastic compositions and composites are produced which have fewer and smaller voids with more consistent dimensions compared to conventional unreinforced and fiber reinforced thermoplastics. The high modulus thermoplastic contains silicone semi-interpenetrating polymer networks which are formed by vulcanization within the thermoplastic and initiated during melt processing. Parts molded from the compositions are more homogeneous, with evenly distributed voids, thus reducing the possibility of strss fractures. The compositions are particularly useful in the molding in thick cross-section and variable thickness parts and have been found to have increased thermal stability.Type: GrantFiled: September 21, 1987Date of Patent: July 18, 1989Assignee: ICI Americas Inc.Inventors: Jane M. Crosby, MaryGail K. Hutchins, Susan K. Ward
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Patent number: 4840984Abstract: A polyethylene terephthalate resin composition suitable for use in moldings which comprises:(A) 5 to 93 parts of a polyethylene terephthalate resin and(B) 95 to 7 parts of a polyethylene terephthalate block copolymer having 10 to 55% by weight of units represented by the formula (I): ##STR1## wherein R.sup.1 and R.sub.2 are the same or different and each is a bivalent hydrocarbon group having 2 to 4 carbon atoms, R.sup.3 to R.sup.10 are the same or different and each is hydrogen atom, a monovalent hydrocarbon group or a halogen atom, X is a bivalent group or single bond, and each of m and n is an integer of 5 to 20, said parts of said components (A) and (B) being parts by weight based on the total amount of said components (A) and (B). The composition of the invention can be molded according to injection molding as well as extrusion, and the obtained molded articles have the excellent heat resistance, surface property and fatigue resistance.Type: GrantFiled: February 22, 1988Date of Patent: June 20, 1989Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Akiyoshi Somemiya, Kazushi Hirobe
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Patent number: 4839409Abstract: Compositions for stabilizing rigid (unplasticized) halogen-containing organic polymers against the deteriorative effects of heat, ultra-violet light and weathering comprise organotin or non-tin metal salt primary heat stabilizers in combination with esters of polyhydrocarbyl ether glycols.Type: GrantFiled: September 17, 1987Date of Patent: June 13, 1989Assignee: Morton Thiokol, Inc.Inventor: Gary M. Conroy
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Patent number: 4837262Abstract: An improved food wrapping film is produced by extruding a mixture of linear low density polyethylene with low density polyethylene and a resin modifier, further mixed with a mixture of edible oil, calcium and aluminum stearates, polybutene, a surface active agent and a petroleum resin. Surface characteristic is further modified by coating the film with a mixture of edible oil, polybutene, and petroleum resin.Type: GrantFiled: January 9, 1987Date of Patent: June 6, 1989Inventors: Byung S. Jeon, Takeo Namba
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Patent number: 4835203Abstract: The invention involves modeling and molding extruded compositions comprising previous extruded polycaprolactone extrusion blended with a small amount of a detackifier comprising a fatty acid salt or amide.Type: GrantFiled: June 15, 1987Date of Patent: May 30, 1989Inventor: David L. Sieverding
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Patent number: 4829110Abstract: Stabilized compositions based on alpha-olefin polymers stabilized against degradation by oxidizing liquids, based on polymers of alpha-olefins such as propylene, containing a phenolic antioxidant, a phosphonite and a sulphur-containing stabilizer chosen from the esters derived from aliphatic polyols and alkylthiodipropionic acids and from combinations of a metal sulfide with one of these esters or with an organic polysulfide and optionally also containing an organic phosphite and an anti-acid agent. These compositions exhibit outstanding resistance to the phenomenon of oxidative degradation produced particularly by the contact with hot washing products of all kinds.Type: GrantFiled: November 18, 1986Date of Patent: May 9, 1989Assignee: Solvay & Cie (Societe Anonyme)Inventors: Roger Van Asbroeck, Serge Blanc
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Patent number: 4826906Abstract: Disclosed herein is a poly(arylene thioether-ketone) composition improved in melt stability and crystallinity, which comprises (A) 100 parts by weight of a melt-stable poly(arylene thioether-ketone) (PTK) and (B) 0.1-30 parts by weight of at least basic compound selected from the group consisting of the hydroxides, oxides and aromatic carboxylic acid salts of Group IIA metals of the periodic table other than magnesium and the hydrocarbyl oxides, aromatic carboxylic acid salts, carbonates, hydroxides, phosphates and borates of Group IA metals of the periodic table. The phosphates and borates include condensation products. The PTK has predominant recurring units of the formula ##STR1## and having a melting point, Tm of 310.degree.-380.degree. C., a residual melt crystallization enthalpy, .DELTA.Hmc (420.degree. C./10 min) of at least 10 J/g, a melt crystallization peak-temperature, Tmc (420.degree. C./10 min) of at least 210.degree. C. and a reduced viscosity of 0.2-2 dl/g.Type: GrantFiled: June 17, 1988Date of Patent: May 2, 1989Assignee: Kureha Kagaku Kogyo K.K.Inventors: Yoshikatsu Satake, Ken Kashiwadate, Yo Iizuka, Toshitaka Kouyama, Takayuki Katto, Zenya Shiiki
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Patent number: 4826907Abstract: An acrylic or methacrylic resin emulsion coating composition comprising a blended mixture composed of(1) 100 parts by weight as solid resin content of a copolymer resin emulsion [A], the copolymer resin therein having a glass transition temperature Tg(A), determined by the DSC method, of about -10.degree. to about -55.degree. C., and said copolymer resin emulsion [A] being an aqueous emulsion-copolymerization product being free from a copolymerizable diallyl component and derived from acrylic and/or methacrylic monomers (a) and (b) specified in the claims in the presence of a polyoxyethylene/polyoxypropylene block copolymer,(2) 20 to 300 parts by weight as solid resin content of a copolymer emulsion [B], the copolymer resin therein having a glass transition temperature Tg(B), determined by the DSC method, of less than 0.degree. C., and satisfying the following equationTg(B)-Tg(A)=10.about.55.degree. C.Type: GrantFiled: October 4, 1985Date of Patent: May 2, 1989Assignee: Nippon Carbide Kogyo Kabushiki KaishaInventors: Kazuhiro Murao, Akira Maruta
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Patent number: 4826735Abstract: A polypropylene resin composition is provided by incorporating a metal salt of a fatty acid and the oxide or hydroxide of an alkaline earth metal, each, in an amount of 0.05-1 part by weight based on 100 parts by weight of polypropylene. The polypropylene resin composition shows excellent thermal processing stability even when subjected to remelting and extrusion molding after mixing of a scrap recycled from the production of multi-layered containers or sheets each of which is formed of a gas barrier layer made of nylon or an ethylene-vinyl alcohol copolymer and another layer made of a polypropylene resin composition.Type: GrantFiled: September 10, 1986Date of Patent: May 2, 1989Assignees: Mitsui Toatsu Chemicals, Incorporated, Toyo Seikan Kaisha Ltd.Inventors: Toru Ueki, Jinichi Yazaki, Akihiko Tamura, Hideo Amemiya, Takashi Miyazaki
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Patent number: 4814369Abstract: A vinyl halide resin (PVC) flooring composition having reduced water absorption containing polyhydric alcohol, metal salt stabilizer, filler and an aromatic carboxylic acid such as benzoic acid as an anti-water absorption agent. The compositions may be employed for dramatic improvement against swelling and buckling of flooring tile and sheet.Type: GrantFiled: January 28, 1988Date of Patent: March 21, 1989Assignee: Synthetic Products CompanyInventor: Paulette Baker
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Patent number: 4810733Abstract: A color concentrate which comprises (a) one or more of polypropylene resins and propylene copolymers having a melt flow rate in the range of 0.1-100, (b) one or more of organic and inorganic pigments; and (c) one or more pigment dispersants selected from the group consisting of polyethylene wax, polypropylene wax and derivatives thereof, zinc stearate, magnesium stearate, aluminium stearate, calcium stearate and ethylene bisamide, the contents of (a), (b) and (c) being, respectively, 11-30 wt %, 10-80 wt % and 10-50 wt % based on the total of (a), (b) and (c); and molded or extruded articles of thermoplastic resins other than (a) colored with the color concentrate.Type: GrantFiled: October 19, 1987Date of Patent: March 7, 1989Assignee: Toyo Ink Mfg Co., LtdInventors: Noburu Sakuma, Hideo Shimizu
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Patent number: 4808649Abstract: Diorganopolysiloxanes having the formula: ##STR1## are especially useful for the stabilization of polyvinyl chloride-based polymers.Type: GrantFiled: August 12, 1987Date of Patent: February 28, 1989Assignee: Rhone-Poulenc ChimieInventors: Michel Gay, Edith Canivenc
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Patent number: 4801640Abstract: The invention concerns a polyester film with improved abrasion resistance, dimensional stability, drawability and slip properties. The film is characterized by the fact that it contains 0.005 to 5.0% by weight of organic, preferably hardened or crosslinked, particles with narrow particle size distribution in a range between 0.01 and 5 microns, as well as a nucleating agent in an amount from 0.01 to 10% by weight, both values related to the weight of the polymers which form the film.Type: GrantFiled: January 9, 1986Date of Patent: January 31, 1989Assignee: Hoechst AktiengesellschaftInventors: Hermann Dallmann, Werner Schaefer, Wolfgang Gawrisch, Hartmut Hensel
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Patent number: 4797440Abstract: A composition comprising a dispersion of a finely divided particulate solid in a thermoplastic polymeric organic medium in the presence of a lubricant and a processing additive in which the processing additive comprises an organic compound containing at least one group of the formula:--O--A--CO--wherein A is a divalent aliphatic radical containing 17 carbon atoms, at least 4 of which are directly between the oxygen atom and the carbonyl group.The composition is suitable for blending a particulate solid into a polymer.Type: GrantFiled: June 25, 1987Date of Patent: January 10, 1989Assignee: Imperial Chemical Industries PLCInventors: John D. Schofield, Roger Slater
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Patent number: 4786672Abstract: Stabilized chlorine-containing polymers containing at least one anilinotriazine of the formula I ##STR1## in which R.sub.1 is phenyl or a group of the formula II ##STR2## in which R.sub.4, R.sub.5 and R.sub.6 independently of one another are chlorine, bromine, cyano, methoxycarbonyl, ethoxycarbonyl, carbamoyl, hydroxyl, methoxy, ethoxy or C.sub.1 -C.sub.18 -alkyl and n.sub.1, n.sub.2 and n.sub.3 are 0, 1, 2, or 3, subject to the proviso that the sum of n.sub.1 +n.sub.2 +n.sub.3 is an integer from 1 to 3, and R.sub.2 and R.sub.3 independently of one another are C.sub.2 -C.sub.4 -hydroxyalkyl, and also novel anilinotriazines and the use thereof for stabilizing chlorine-containing polymers against the harmful effects of light and/or heat.Type: GrantFiled: July 21, 1987Date of Patent: November 22, 1988Assignee: Ciba-Geigy CorporationInventor: Wolfgang Wehner
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Patent number: 4785037Abstract: Disclosed is a composition suitable for the preparation of a gasket for use in the production of shaped resin articles by cast polymerization. The composition is comprises (A) 100 weight parts of a vinyl chloride resin, (B) 30 to 70 weight parts of a carboxylic acid ester or phosphoric acid ester plasticizer, (C) 0.5 to 10 weight parts of an epoxy type plasticizer and (D) 0.1 to 5 weight parts of a barium- or zinc-containing stabilizer.Type: GrantFiled: December 16, 1986Date of Patent: November 15, 1988Assignee: Mitsubishi Rayon Company Ltd.Inventors: Hiroyuki Ikeda, Suehiro Tayama
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Patent number: 4780315Abstract: Disclosed are rumen-stable compositions for coating medicaments and nutrients for ruminant animals. The coatings comprise a film-forming polymeric substance containing basic nitrogen groups, and an inorganic particulate material dispersed throughout the polymeric substance.Type: GrantFiled: November 25, 1985Date of Patent: October 25, 1988Assignee: Eastman Kodak CompanyInventors: Stephen H. W. Wu, Edward G. Miller, Jr.
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Patent number: 4772652Abstract: The present invention relates to a polyethylene terephthalate based copolyester modified by aliphatic dicarboxylic acid containing not less than 9 carbon atoms and poly(tetramethylene oxide)glycol, and to a polyester resin composition comprising said copolyester.Said polyester resin composition exhibits excellent toughness, impact strength and moldability without harming the inherent characteristics of polyethylene terephthlate.Type: GrantFiled: May 21, 1987Date of Patent: September 20, 1988Assignee: Kuraray Co., Ltd.Inventors: Murata Yoshifumi, Kaneda Teruhisa, Hara Kazuo, Takamoto Katsunori, Ohonishi Isao, Yokota Shinichi
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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: H506Abstract: Disclosed is a resinous composition having excellent discoloration, processability, heat resistancy and durability comprising,A. 100 parts by weight of an aromatic polyester having the general formulae (I) and (II) ##STR1## B. 0.01 to 5 parts by weight of a phosphoric compound, and C. 0.01 to 0.1 part by weight of a carboxylic acid metal salt. Also disclosed is a process for producing shaped articles, the improvement which comprises adding the additives stepwise to the aromatic polyester.Type: GrantFiled: April 17, 1987Date of Patent: August 2, 1988Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Masashiro Asada, Junji Takase