Mixed With Carboxylic Acid Or Derivative Reactant Or Polymer Derived Therefrom Patents (Class 525/400)
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Patent number: 5141993Abstract: A compatible polymer blend consisting essentially of:a) 0.5-99.5 wt. % of homopolymer or copolymer polyoxymethylene component, andb) 99.5-0.5 wt. % of a polymer component which comprises 40-100% of at least one monomer of formula ##STR1## in which R.sub.1 is methyl or ethyl. The blends are suitable for use as engineering plastics.Type: GrantFiled: May 13, 1991Date of Patent: August 25, 1992Assignee: Rohm GMBH Chemische FabrikInventors: Werner Siol, Klaus Frank, Ulrich Terbrack
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Patent number: 5079282Abstract: A polyacetal resin composition is improved in the weather-resistance and comprises:(A) a polyacetal resin,(B) 0.01 to 5% by weight (based on the whole composition) of a weathering (light) stabilizer and(C) 0.01 to 10% by weight (based on the whole composition) of an acrylic oligomer of a polyester type.Type: GrantFiled: July 10, 1989Date of Patent: January 7, 1992Assignee: Polyplastics Co., Ltd.Inventor: Sadatsugu Okuda
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Patent number: 5068273Abstract: A thermosetting composition comprising a mixture of a thermosettable polyester and an aminoplast resin together with an alkali metal sulfonate. The composition may also contain a pigment and a reactive diluent. The composition is useful as a coating or ink.Type: GrantFiled: June 27, 1990Date of Patent: November 26, 1991Assignee: Sun Chemical CorporationInventors: Narendra M. Patel, Leonard Di Leo
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Patent number: 5047471Abstract: The invention relates to a mixture composed of polyoxymethylene (component A), a rubber-elastic graft copolymer in which the particles have been formed from a rubber-elastic, single-phase core based on polydiene and a hard graft shell (component B) and a polymeric third component (component C).The invention also relates to a three-component mixture of the components A, B' and C, the core, in the case of B' being preponderantly or entirely composed of poly(meth)acrylic acid ester or silicone rubber instead of polydiene.The shaped articles produced from these mixtures are particularly distinguished by good low-temperature impact strength.Type: GrantFiled: May 20, 1988Date of Patent: September 10, 1991Assignee: Hoechst AktiengesellschaftInventors: Karlheinz Burg, Harald Cherdron, Friedrich Kloos, Helmut Schlaf
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Patent number: 5043399Abstract: There are disclosed a polyacetal composition comprising(A) 70-97% by weight of a polyacetal and(B) 30-3% by weight of a transparent polyamide elastomer represented by the general formula ##STR1## in which PA and G represent the groups specified as in the body of the text;said polyamide elastomer exhibiting a relative viscosity of at least 1.5 in m-cresol at 30.degree. C. and at a polymer concentration of 0.5 g/dl anda 1-mm thick sheet of the polyamide elastomer having a haze of not more than 75%, and streched and oriented polyacetal material using it.Type: GrantFiled: September 21, 1988Date of Patent: August 27, 1991Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Yoshio Suzuki, Tamikuni Komatsu, Mikihiko Nakamura, Shigeo Shiihashi
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Patent number: 5043400Abstract: A method for producing articles of composite resin, wherein a liquid crystal polymer material in powder form is mixed with a second, melt-processable polymer material; the resulting mixture is kneaded at a temperature at which the second polymer material will melt but at which no deformation of the liquid crystal polymer will be caused so as to prepare a blend comprising the liquid crystal polymer powder uniformly dispersed in the matrix of the second polymer; and the blend is then subjected to a molding or shaping process at a temperature within the range at which the liquid crystal polymer is capable of forming liquid crystals.Type: GrantFiled: January 23, 1991Date of Patent: August 27, 1991Assignee: Tosoh CorporationInventors: Akeharu Tsuruta, Hisato Kawaguchi, Tomohiro Ishikawa, Yozo Kondo
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Patent number: 5028456Abstract: A curable polyester composition having improved properties is described, and the curable polyester composition comprises:(A) at least one unsaturated polyester resin;(B) at least one hydrocarbon monomer copolymerizable with the polyester; and(C) at least one aryl sulfonamide-aldehyde resin.When the curable polyester composition is to be used as a plastic body filler, the curable polyester composition generally will be modified to include (D) at least one inorganic filler which may comprise a mixture of an inorganic powder and inorganic hollow microspheres.The curable polyester resin compositions of the invention are useful as plastic body fillers for repairing metal surfaces, and the curable compositions have been found to be particularly useful and advantageous as plastic body fillers for galvanized steel.Type: GrantFiled: September 28, 1990Date of Patent: July 2, 1991Assignee: Oatey CompanyInventor: Paul E. Naton
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Patent number: 4975520Abstract: A process for producing oxymethylene copolymers and terpolymers is disclosed which involves the non-linear addition of gaseous formaldehyde to a cyclic ether having at least two adjacent carbon atoms (1) and, in the case of a terpolymer, to a mixture of at least one (1) and one monoethylenically unsaturated aliphatic diol formal having at least four carbon atoms in its main chain (2), or to a mixture of (1) with a (2), in the presence of a polymerization initiator at a rate controlled so as to conform to a rate determined by kinetic equations that describe the rate of decomposition of trioxane to formaldehyde during conventional copolymerization of trioxane with a cyclic ether. The process and kinetic equations of the invention are applicable to batch reactions, single stream continuous reactions and dual stream continuous reactions.Type: GrantFiled: March 20, 1989Date of Patent: December 4, 1990Assignee: Hoechst Celanese Corp.Inventor: George L. Collins
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Patent number: 4900782Abstract: This invention relates to novel forms of poly(heteroaromatic vinylenes), and poly(aromatic vinylenes) and to solutions thereof, either in the conductive form or non-conductive form.Type: GrantFiled: April 4, 1988Date of Patent: February 13, 1990Assignee: Allied-Signal Inc.Inventors: Chien-Chung Han, Kwan-Yue A. Jen, Ronald L. Elsenbaumer
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Patent number: 4877813Abstract: Resin bearing material consists essentially of at least one thermoplastic resin material selected from the group consisting of polyacetal, polyamide, polycarbonate, polyphenylene sulfide, polyethylene terephthalate, and ultra-high molecular weight polyethylene, and of aromatic group, polyamide fiber, and is produced by the steps comprising kneading fand extruding said at least one thermoplastic resin material and the cutting the extruded material.The sliding characteristics are superior to the conventional oleo-bearing materials containing the carbon fiber, and glass fiber.Type: GrantFiled: March 2, 1988Date of Patent: October 31, 1989Assignee: Taiho Kogyo Co., Ltd.Inventors: Osamu Jinno, Tatsuhiko Fukuoka
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Patent number: 4760119Abstract: Incorporation of 0.6-5.0 weight percent of certain ethylene oxide/propylene oxide copolymers into polyacetal molding compositions results in improved hydrolytic stability of such compositions.Type: GrantFiled: April 30, 1986Date of Patent: July 26, 1988Assignee: E. I. Du Pont de Nemours and CompanyInventors: Charles L. Liotta, Norman E. West
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Patent number: 4758634Abstract: Electroactive polymers of the structure and formula ##STR1## in their neutral and ionized forms, where the backbone group R.sub.b is selected from or is a combination of five- and six-membered rings capable of aromatic and quinonoid bonding structures, R.sub.s is selected from aliphatic, aromatic and heterocyclic groups and x, y are positive integers from 1 to 5 and m is a positive integer from 2 to about 10,000, together with a method of making them are disclosed.Type: GrantFiled: September 8, 1986Date of Patent: July 19, 1988Assignee: Honeywell Inc.Inventor: Samson A. Jenekhe
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Patent number: 4737539Abstract: Resin bearing material consists essentially of at least one thermoplastic resin material selected from the group consisting of polyacetal, polyamide, polycarbonate, polyphenylene sulfide, polyethylene terephthalate, and ultra-high molecular weight polyethylene, and of aromatic group, polyamide fiber, and is produced by the steps comprising kneading and extruding said at least one thermoplastic resin material and the cutting the extruded material.The sliding characteristics are superior to the conventional oleo-bearing materials containing the carbon fiber, and glass fiber.Type: GrantFiled: March 30, 1987Date of Patent: April 12, 1988Assignee: Taiho Kogyo Co., Ltd.Inventors: Osamu Jinno, Tatsuhiko Fukuoka
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Patent number: 4689392Abstract: A highly reactive aromatic hydrocarbon-formaldehyde resin having a diarlymethane content of not more than 5% by weight, essentially containing reactive groups of any one of CH.sub.2 OH, CH.sub.2 OCH.sub.3 and CH.sub.2 OCH.sub.2 OCH.sub.3 at both molecular terminals and having a xylenol value of at least 15 mol/kg as an index of reactivity with a compound having active hydrogen atoms is prepared by reacting an aromatic hydrocarbon such as xylene, mesitylene or naphthalene with formaldehyde at a molar ratio of the formaldehyde to the aromatic hydrocarbon of 2.0 to 5.0, a sulfuric acid concentration of 15 to 35% by weight in an aqueous layer and a reaction temperature of 80.degree. to 110.degree. C. while controlling a formaldehyde conversion within a range of 50 to 70% by mole over the range 4 to 8 hours.Type: GrantFiled: March 26, 1986Date of Patent: August 25, 1987Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Akira Miyamoto, Toshiaki Nishimura, Yoshitaka Yamagishi, Yasumitsu Higuchi
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Patent number: 4683267Abstract: Moulding compounds consisting of a mixture of (A) from 99.99 to 60 parts, by weight, of a polyoxymethylene; (B) from 0 to 40 parts, by weight, of an elastomer having a softening temperature below the crystallite melting point of polyoxymethylene (A) and a freezing point below 0.degree. C.; and (C) from 0.01 to 40 parts, by weight, of an aliphatic, rubber-like, high molecular weight adipate-carbonate mixed ester.Type: GrantFiled: June 3, 1985Date of Patent: July 28, 1987Assignee: Bayer AktiengesellschaftInventors: Christian Lindner, Karola Brudermanns, Helmut Waniczek, Walter Uerdingen, Helmut Hurnik
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Patent number: 4666995Abstract: The black speck formation which occurs during the compounding and molding of admixtures of oxymethylene polymers and polyamides having a melting or softening point below that of the oxymethylene polymer can be reduced by adding the polyamide to the oxymethylene polymer as a dispersion of the polyamide in a carrier resin which is inert to the oxymethylene polymer and has a melting or softening point below that of the oxymethylene polymer. The polyamide comprises less than about 50 weight percent of the dispersion.Type: GrantFiled: May 15, 1986Date of Patent: May 19, 1987Assignee: Celanese CorporationInventors: Andrew Auerbach, Kavilipalayam Natarajan
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Patent number: 4649179Abstract: A polyacetal resin composition comprises polyacetal and an ester of a fatty acid having 12 or more carbon atoms and a polyalkylene glycol having a polymerization degree of 16 or more and is improved in abrasion resistance, suitable for moulding.Type: GrantFiled: July 22, 1985Date of Patent: March 10, 1987Assignee: Polyplastics Co., Ltd.Inventor: Hitohisa Takagaki
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Patent number: 4640949Abstract: Polyoxymethylene compositions are stabilized by a blend of thermoplastic polyurethane with polyamide where the polyamide is dispersed throughout the polyurethane as a separate phase having substantially all of the polyamide particles with a diameter of less then six microns and where the polyamide comprises 0.2 to 5 weight percent based on the quantity of polyoxymethylene.Type: GrantFiled: May 21, 1985Date of Patent: February 3, 1987Assignee: E. I. Du Pont de Nemours and CompanyInventor: Mark E. Wagman
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Patent number: 4600750Abstract: An improved process is provided for producing polymeric acetal carboxylate salts useful as detergent builders. The process comprises polymerization of an alkyl glyoxylate, optionally with one or more comonomers; addition of stabilizing endgroups; and saponification of the polymeric ester to produce the polymeric acetal carboxylate salts. Active yield is improved by reducing the number of polymer chains with unstable temporary endcaps entering the saponification step.Type: GrantFiled: August 27, 1985Date of Patent: July 15, 1986Assignee: Monsanto CompanyInventors: David R. Dyroff, Edward J. Burke, William Vanderlinde, Thomas W. Backes
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Patent number: 4547548Abstract: Polycondensation compounds containing piperidine and triazine groups, having a mean molecular weight from 1000 to 20,000 and constituted by structural units a and b of the formula ##STR1## are suitable as anti-actinic stabilizers for incorporation in polymeric materials.Type: GrantFiled: July 19, 1984Date of Patent: October 15, 1985Assignee: Ciba-Geigy S.p.A.Inventor: Giuseppe Cantatore
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Patent number: 4535127Abstract: A polyacetal copolymer composed of an acetal polymer portion and a thermoplastic elastomer portion having soft segments and hard segments, the second-order transition temperature of said elastomer portion being in the range of -120.degree. to 40.degree. C. A process for producing such a polyacetal copolymer is also described.Type: GrantFiled: March 13, 1984Date of Patent: August 13, 1985Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Kazuhiko Matsuzaki, Minoru Hamada
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Patent number: 4530992Abstract: Compositions comprising an oligomer which (a) comprises the repeating unit (Ar--CHR), and where Ar is an aromatic group and R is hydrogen or a hydrocarbyl group or hydrogen, (b) has pendant and/or terminal groups which include inter alia acyloxymethyl, hydroxymethyl and carboxyl, and (c) has a functionality between 0.5 and 10, and processes for the preparation thereof are described. These compositions may be used in dental, electrical and electronic applications.Type: GrantFiled: December 6, 1983Date of Patent: July 23, 1985Assignee: Imperial Chemical Industries PLCInventor: Michael E. B. Jones
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Patent number: 4528333Abstract: Disclosed is an ungelled, curable, synthetic thermosetting resin, and a method of making the resin. The ungelled resin is a reaction product of components comprising: an aminoplast, a hydroxyl-containing carboxylic acid, an alkylenimine, and optionally a polyol. The disclosure is also directed to a coating composition comprising the ungelled, thermosetting resin.Type: GrantFiled: March 28, 1984Date of Patent: July 9, 1985Assignee: PPG Industries, Inc.Inventors: Wen-Hsuan Chang, Robert Piccirilli
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Patent number: 4506053Abstract: An acetal resin composition comprising(A) an acetal resin,(B) at least one member selected from the group consisting of (1) a polyfunctional cyanic acid ester or its prepolymer, (2) a mixture of a polyfunctional cyanic acid ester or its prepolymer with a polyfunctional maleimide or its prepolymer and (3) a pre-copolymer of a polyfunctional cyanic acid ester and a polyfunctional maleimide,(C) an amine-substituted triazine and/or a cyanoguanidine compound, and(D) an inorganic filler other than glass, and/or an organic filler.Type: GrantFiled: December 7, 1983Date of Patent: March 19, 1985Assignee: Mitsubishi Gas Chemical Co., Inc.Inventors: Masanori Sakurai, Junichi Miyawaki, Toshikazu Umemura, Toshikatsu Kawata, Shinzi Kiboshi, Akiyoshi Shibata
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Patent number: 4410690Abstract: A process for the preparation of a modified aromatic hydrocarbon resin which comprises reacting an aromatic hydrocarbon-formaldehyde resin with an unsaturated polybasic acid or an anhydride thereof, together with a saturated polybasic acid or an anhydride thereof if necessary, in the presence or absence of water, while introducing steam into the reaction system to remove by-produced formaldehyde out of the reaction system, and reacting the formed reaction product with at least one dihydroxy compound selected from the group consisting of (A) a glycol and (B) a hydroxy-terminated oligomer obtained by reacting a glycol with an unsaturated polybasic acid or an anhydride thereof; the cured product of the modified aromatic hydrocarbon resin being excellent in mechanical strength and resistance to water and alkalis.Type: GrantFiled: April 30, 1982Date of Patent: October 18, 1983Assignee: Mitsubishi Gas Chemical Co., Inc.Inventors: Akira Miyamoto, Katsuo Sato, Toshiaki Nishimura, Yoshitaka Yamagishi, Yoshimasa Mitui
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Patent number: 4382994Abstract: A polyacetal resin molded article having reduced water contamination is disclosed. The water contamination reduction feature is provided by the inclusion of a substantially water insoluble substance which forms a hydrophobic film on the molded article. It is furthermore required that the water insoluble substance-included polyacetal molded article be heat treated in air or in an inert gas to provide reduced water contamination.Type: GrantFiled: March 31, 1982Date of Patent: May 10, 1983Assignee: Polyplastics Co., Ltd.Inventor: Kenzi Matsumi
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Patent number: 4380610Abstract: This invention relates to "comb" polymers having high molecular weight and related structurally to polyoxymethylene, but having improved thermal stability. In addition, this invention relates to a method for preparing these high molecular weight "comb" polymers and teaches a process which exhibits reduced reactor fouling and produces a free-flowing powder. Generally the improved polymer is made by copolymerizing trioxane with polyanhydride or copolymerizing trioxane with copolymers of olefins and anhydrides. The improved polymer can optionally be reacted with agents known to react with terminal hydroxy groups to end-cap the polymer.Type: GrantFiled: December 21, 1981Date of Patent: April 19, 1983Assignee: Conoco Inc.Inventors: Jeff T. Fenton, Mark P. Mack
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Patent number: 4377667Abstract: A polyacetal suitable for moldings which are excellent in lubricity, wear and antistatic properties, which has at least one terminal of its linear polymer molecule capped with an alkylene oxide adduct of an alcohol or a carboxylic acid, which adduct is of the formula ##STR1## wherein R.sub.o is a hydrogen atom, alkyl group, substituted alkyl group, aryl group, or substituted aryl group, R.sub.o 's may be the same or different, R.sub.1 is an alkyl group, substituted alkyl group, aryl group, or substituted aryl group, R.sub.2 is a hydrogen atom, alkyl group, substituted alkyl group, aryl group, or substituted aryl group, m is from 2 to 6, and n is from 1 to 1,000; the number average molecular weight of said polyacetal being in the range from 10,000 to 500,000 excluding the terminal group.Type: GrantFiled: June 4, 1981Date of Patent: March 22, 1983Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Hisaya Sakurai, Minoru Hamada, Kazuhiko Matsuzaki
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Patent number: 4351916Abstract: A polyoxymethylene molding composition comprising an admixture which contains a small amount of poly(ethylene glycol) and a small amount of a dispersion of polyamide in a carrier resin.Type: GrantFiled: May 7, 1981Date of Patent: September 28, 1982Assignee: E. I. Du Pont de Nemours and CompanyInventor: Melvin I. Kohan
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Patent number: 4303777Abstract: A polymer having the average structure: ##STR1## wherein Y is a moiety containing 1 to about 20 carbon atoms randomly distributed along the polymer chain derived from a comonomer selected from the group consisting of aldehydes and epoxy compounds; p is 0 or 1; the product of q and n averages at least 4; R.sup.1 and R.sup.2 are individually any chemically stable group which stabilizes the polymer against rapid depolymerization in alkaline solution; and Z is a mixture of H and members selected from the group consisting of alkali metals, ammonium and alkanol amine groups having from 1 to about 4 carbon atoms, is useful for the reversible deflocculation of clay slurries. In the preferred embodiments, p is 0 to provide a homopolymer, the product of q and n averages between about 10 and about 200, and Z is a mixture containing at least 1 percent H, the remainder being alkali metal, e.g., sodium.Type: GrantFiled: June 5, 1980Date of Patent: December 1, 1981Assignee: Monsanto CompanyInventors: Marvin M. Crutchfield, David R. Dyroff
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Patent number: 4302564Abstract: The alkali metal, ammonium and alkanol amine salts of acetal carboxylate polymers are known to be stable detergent builders and chelating agents which depolymerize in acid media making the polymer fragments more readily biodegradable in waste streams. Now, according to the present invention, the hydrolytic stability of an acetal carboxylate polymer can be controlled by bringing together under polymerization conditions an ester of glyoxylic acid and a polymerization initiator and adding to the termini of the resulting polymer end groups having substituents which are selected to be more electron withdrawing as the desired hydrolytic stability increases.Type: GrantFiled: June 5, 1980Date of Patent: November 24, 1981Assignee: Monsanto CompanyInventors: David R. Dyroff, Gary J. Lynch, Victor D. Papanu
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Patent number: 4280979Abstract: Novel polyester diols are described containing aliphatically saturated divalent diacyl moieties and olefinically unsaturated divalent diacyl moieties in a mole ratio of 0.25:1 to 3:1; and divalent dioxy moieties which are linear and/or branched, preferably divalent branched dioxy moieties and divalent linear dioxy moieties in a mole ratio of 0.3:1 to 3:1, the diacyl moieties being bonded through ester linkage to the dioxy moieties in a mole ratio of at least 1.75 dioxy moieties per diacyl moiety, wherein the polyester diol is end-blocked essentially only by alcoholic hydroxyl groups and has an acid number of less than 3. The novel polyester diols are highly useful in the production of polyurethane/vinyl polymer copolymers by reaction with polyisocyanates and polymerizable ethylenically unsaturated monomers.Type: GrantFiled: September 18, 1979Date of Patent: July 28, 1981Assignee: Union Carbide CorporationInventors: Raymond A. Dunleavy, William A. Gill
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Patent number: 4277577Abstract: The invention provides a molding composition of a mixture of an oxymethylene polymer, an elastomer having a softening temperature of below the crystallite melting point of the oxymethylene polymer and a second order transition temperature of from -120.degree. to +30.degree. C., and a segmented thermoplastic copolyester.The molding composition of the invention is distinguished by improved mechanical properties, especially with respect to the impact strength.Type: GrantFiled: April 23, 1979Date of Patent: July 7, 1981Assignee: Hoechst AktiengesellschaftInventors: Karlheinz Burg, Werner Schmieder, Ernst Wolters
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Patent number: 4268643Abstract: The terminal hydroxyl groups of an acetal polymer are esterified or etherified by reaction with an end-capping agent chosen from anhydrides of carboxylic acids, orthoesters and orthocarbonates, by forming an intimate mixture of polymer in powder form and liquid end-capping agent, the amount of said agent in the mixture being less than that which results in loss of the free-flowing characteristics of the powder, and reacting said mixture under stirring at 50.degree.-170.degree. C.Type: GrantFiled: October 25, 1979Date of Patent: May 19, 1981Assignee: Societa Italiana Resine S.I.R. S.p.A.Inventors: Pierino Radici, Sergio Custro, Paolo Colombo
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Patent number: 4250280Abstract: Disclosed is a blockcopolyetherester composition stabilized by the incorporation of a polysulfide polymer. Products prepared from this composition exhibit an excellent thermal stability as well as UV-light resistance.Type: GrantFiled: May 11, 1979Date of Patent: February 10, 1981Assignee: Toray Industries, Inc.Inventors: Chiaki Tanaka, Nagayoshi Naito, Yoko Furuta
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Patent number: 4233414Abstract: New polyhydric phenol coesters are disclosed of polyhydric phenols, having 2 to 3 phenolic hydroxyl groups and 1 to 3 benzenoid rings, with carbonic acid and an aliphatic dicarboxylic acid having 4 to 10 carbon atoms and optionally a thioether sulfur atom in the aliphatic chain of the dicarboxylic acid. The new coesters have molecular weights from 700 to about 10,000, preferably from 1200 to 7000, and are highly effective stabilizers for a variety of synthetic resins.Stabilizer compositions comprising a polyhydric phenol coester and a known polymer stabilizer, as well as synthetic resins stabilized with such stabilizer compositions, are also disclosed.Type: GrantFiled: May 29, 1979Date of Patent: November 11, 1980Assignee: Argus Chemical CorporationInventors: William E. Leistner, Motonobu Minagawa, Yutaka Nakahara, Tohru Haruna