Two Or More N-c=o Groups Patents (Class 524/227)
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Patent number: 5516819Abstract: A method of producing a thickened organic polymeric composition useful for molding and capable of resisting post-molding shrinkage after being crosslinked comprising a cross-linkable base resin dissolved in an unsaturated monomer, and an additive resin selected from saturated polyesters and saturated amide waxes, the additive resin being crystalline at ambient temperatures and having a melting point (T.sub.m) below a temperature (T.sub.c) at which the base resin cross-linking reaction proceeds at a significant rate. The base resin and additive resin have only a partial degree of compatibility. When cooled from a temperature between T.sub.m and T.sub.c to temperature between T.sub.m and ambient the composition thickens, whereas, when it is heated to a temperature below T.sub.c, it reverts to a flowable composition.Type: GrantFiled: August 25, 1994Date of Patent: May 14, 1996Assignee: The University of Manchester Institute of Science and TechnologyInventors: Stephen F. Bush, James M. Methven, David R. Blackburn
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Patent number: 5496873Abstract: A thickened organic polymeric composition useful for molding and capable of resisting post-molding shrinkage after being cross-linked comprises a cross-linkable base resin dissolved in an unsaturated monomer, and an additive resin selected from saturated polyesters and saturated amide waxes, the additive resin being crystalline at ambient temperatures and having a melting point (T.sub.m) below a temperature (T.sub.c) at which the base resin cross-linking reaction proceeds at a significant rate. The base resin and additive resin have only a partial degree of compatibility. When cooled from a temperature between T.sub.m and T.sub.c to a temperature between T.sub.m and ambient the composition thickens, whereas, when it is heated to a temperature below T.sub.c, it reverts to a flowable composition.Type: GrantFiled: August 19, 1994Date of Patent: March 5, 1996Assignee: Scott Bader Co., Ltd.Inventors: Stephen F. Bush, James M. Methven, David R. Blackburn
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Patent number: 5459185Abstract: In a one-part (one-pack) moisture-curing urethane adhesive comprising a urethane prepolymer having isocyanate groups (NCO) at the terminus, said urethane prepolymer being a reaction product of a polyol and an excess amount of a polyisocyanate, the improvement which comprises adding 0.01 to 5% by weight of a gelling agent based on the whole amount of the adhesive, and optionally adding a thermoplastic urethane multi-block copolymer resin and a thixotropic agent selected from the group consisting of a hydrophilic colloidal silica and a polysiloxane-polyoxyalkylene copolymer. The adhesive of the present invention can obviate float or slippage of glass in the adhesive application of window glass of automobiles.Type: GrantFiled: February 1, 1994Date of Patent: October 17, 1995Assignee: Sunstar Giken Kabushiki KaishaInventors: Yoshihiro Nakata, Masaharu Takada, Yukio Hayashi
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Patent number: 5401790Abstract: Waterborne coating compositions comprising polymeric film-forming resins and about 0.1 to 5 percent by weight based on weight of resin solids of an oligomer containing from about two to four urethane, urea, or amide moieties per molecule and two or more moieties selected from the group consisting of hydroxyl and tertiary amine. The oligomer improves the smoothness of the resulting coating.Type: GrantFiled: March 31, 1994Date of Patent: March 28, 1995Assignee: PPG Industries, Inc.Inventors: James E. Poole, Roxalana L. Martin
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Patent number: 5326807Abstract: A connector comprising a housing comprising a resin composition comprising (A) 100 parts by weight of a 4,6-nylon resin, (B) from 80 to 120 parts by weight of a polyphenylene ether resin modified with an unsaturated organic acid compound, and (C) from 0.1 to 0.4 part by weight of a copper halide.Type: GrantFiled: May 19, 1993Date of Patent: July 5, 1994Assignee: Yazaki CorporationInventors: Tetsuo Kato, Masahiro Kanda
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Patent number: 5322874Abstract: Disclosed is an electroconductive resin composition comprising 100 parts by weight of a polyphenylene ether, 1 to 50 parts by weight of a diamide compound and 5 to 35 parts by weight of a carbon black having a dibutyl phthalate absorption of 70 ml/100 mg or more. This composition is excellent in electroconductivity, processability and heat resistance.Type: GrantFiled: November 23, 1992Date of Patent: June 21, 1994Assignee: Sumitomo Chemical Company, LimitedInventors: Takeshi Fujii, Manabu Ishikawa
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Patent number: 5304605Abstract: A blood separation composition for use in blood collection tubes. The composition comprises a fatty acid amide(s) blended with a gel-like material which is the main ingredient of said composition. The amide(s) render(s) stable and less flowable the blood separation composition during storage, allowing it to form a stable partition barrier in each collection tube when centrifuged, with the blood cells above the barrier being prevented from remaining within the serum. The blood separation composition containing the fatty acid amide(s) does not release any harmful oily substance.Type: GrantFiled: June 25, 1992Date of Patent: April 19, 1994Assignees: Nissho Corporation, Hokoku Oil Mill Co., Ltd.Inventors: Kazunori Murakami, Tetsuo Takuchi
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Patent number: 5298540Abstract: Recycled mixed plastics from domestic and commercial waste can be stabilized against thermal oxidative degradation by adding a combination of a sterically hindered phenol with a phosphite or phosphonite.Type: GrantFiled: March 25, 1992Date of Patent: March 29, 1994Assignee: Ciba-Geigy CorporationInventors: Jean-Roch Pauquet, Franciszek Sitek, Roberto Todesco
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Patent number: 5194476Abstract: Polymeric compositions characterized by their excellent thermal stability containing a polyphenylene ether or one of its blends with at least one (co)polymer of styrene and at least one compound belonging to the group of linear and/or cyclic beta diketones.Beta-diketones are capable of giving polyphenylene ether and/or its blends with styrenic polymers a long-lasting thermal stability in the molten state and of guaranteeing sufficient fluidity to ensure better processability compared to the same polymers in the known art.Type: GrantFiled: October 8, 1991Date of Patent: March 16, 1993Assignee: ECP Enichem Polimeri s.r.l.Inventors: Andrea Casarini, Giorgio della Fortuna, Aurelio De Chirico
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Patent number: 5157066Abstract: A solid surface modifying composition comprising a film forming material and a fluoroalkyl ether ((Rf).sub.m (CONH--X--NHCO--Y).sub.m (m=1 or 2; Rf: perfluoropolyether chain; X: ##STR1## etc.; ##STR2## etc.) provides surfaces with such improvements as durable water and oil repellency, lubricity and lowered surface energy. The lubricating protective coating is applicable for coatings of recording mediums, photoreceptors and wirings.Type: GrantFiled: July 2, 1991Date of Patent: October 20, 1992Assignee: Hitachi, Ltd.Inventors: Mitsuyoshi Shoji, Takayuki Nakakawaji, Yutaka Ito, Shigeki Komatsuzaki, Akio Mukoh
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Patent number: 5100943Abstract: A permanent antistatic resin composition which comprises 100 parts by weight of a block copolymer and from 0.1 to 2.0 parts by weight of an antistatic agent, said block copolymer comprising polymer blocks of a vinyl aromatic compound, polymer blocks of a conjugated diene compound and polymer blocks of a lactone compound, wherein the content of the vinyl aromatic compound is from 10 to 100% by weight and the content of the conjugated diene compound is from 0 to 90% by weight, provided that the sum of the vinyl aromatic compound and the conjugated diene compound is from 30 to 99% by weight, and the content of the lactone compound is from 1 to 70% by weight.Type: GrantFiled: November 28, 1990Date of Patent: March 31, 1992Assignee: Denki Kagaku Kogyo Kabushiki KaishaInventors: Makoto Katoh, Tetuji Noda
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Patent number: 5098940Abstract: Improved polyphthalamide compositions which possess desirable heat resistance properties comprise a crystalline polyphthalamide component and a particulate thermotropic liquid crystalline polymer component in an amount sufficient to nucleate a melt of the polyphthalamide. Molded articles prepared from these compositions exhibit excellent mechanical and thermal properties, including expecially high crystalline uniformity throughout even when molded using molds heated below Tg of the polyphthalamide component, often facilitating molding using steam or hot water-heated molds.Type: GrantFiled: March 21, 1990Date of Patent: March 24, 1992Assignee: Amoco CorporationInventor: Gary T. Brooks
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Patent number: 5071896Abstract: This invention relates to polyamide moulding compounds with improved processibility; to a process for their preparation, to their use for the production of moulded parts, sheet products, fibres and composite materials and to the moulded parts, sheet products, fibres, semi-finished products, composite materials and other articles produced from these moulding compounds. The invention is characterized by the use of small quantities of special amides and/or ureas which impart significantly improved flowability to the moulding compounds.Type: GrantFiled: December 24, 1990Date of Patent: December 10, 1991Assignee: Bayer AktiengesellschaftInventors: Hans-Detlef Heinz, Joachim Doring, Walter Schmitt, Harald Pielartzik
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Patent number: 5053450Abstract: Compositions of acrylic rubber and another rubber which can be nitrile rubber, hydrogenated nitrile rubber, fluoroelastomer, silicone rubber, or fluorosilicone rubber are described, in which the acrylic rubber is at least partially crosslinked. The compositions are millable and processable and, by the addition of curatives for the nitrile rubber, hydrogenated nitrile rubber, fluoroelastomer, silicone rubber, or fluorosilicone rubber, can be further crosslinked to become vulcanizates which exhibit excellent resistance to the effects of hot air, hot oil, and ozone.Type: GrantFiled: October 16, 1989Date of Patent: October 1, 1991Assignee: Monsanto CompanyInventor: Aubert Y. Coran
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Patent number: 5002988Abstract: A polyamide binder for use in injection molding a metal powder comprising in combination: (a) 40 to 50 wt % of a polyamide resin component having an average molecular weight of not less than 20,000 and prepared by co-polycondensation of a mixture of dimer acid, azelaic acid, ethylenediamine and xylylenediamine each being mixed in a substantially equal molecular equivalent ratio; (b) 20 to 30 wt % of ethylene-bis-laurylamide; and (c) the balance of N,N-diacetylpiperazine.Type: GrantFiled: July 13, 1989Date of Patent: March 26, 1991Assignee: Sanwa Chemical Industry Co., Ltd.Inventors: Hiroshi Ono, Katuyoshi Saitoh, Haruo Yagami, Takeo Saiki, Yoshimichi Masuda
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Patent number: 4918118Abstract: A process for improving properties of a synthetic resin powder by subjecting a latex of a graft-copolymer whose back bone is a rubber to coagulation, and adding a lubricant to the graft-copolymer in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of said graft-copolymer, and then removing water. The bulk specific gravity of a synthetic resin powder produced is large, the flowability and blocking resistance are remarkably improved in comparison with known methods and blocking during storage is prevented. Lines for transporting the powder do not become packed with the resin powder. It is possible to automatically weigh the resin powder, and the powder does not exhibit a tendency to increase in volume during mass transport.Type: GrantFiled: April 11, 1988Date of Patent: April 17, 1990Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Atsushi Kawakatsu, Ryuichi Takagi
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Patent number: 4900769Abstract: An acetal resin composition comprising (A) 100 parts of an acetal resin, (B) 0.01 to 2 parts by weight of a higher fatty acid ester derived from a polyhydric alcohol having 2 to 10 carbon atoms as an alcohol component and a higher fatty acid having 22 to 32 carbon atoms as an acid component and, optionally, (C) 0.01 to 2 parts by weight of a linear fatty acid having at least 10 carbon atoms.Type: GrantFiled: May 25, 1988Date of Patent: February 13, 1990Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Masaharu Kimura, Zenpei Mizutani, Hiroya Fujii
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Patent number: 4894404Abstract: Disclosed is a polyester molding composition comprising poly (1,4-cyclohexylene dimethylene terephthalate), glass fibers and an amide compound as a crystallization aid.Type: GrantFiled: September 19, 1988Date of Patent: January 16, 1990Assignee: Eastman Kodak CompanyInventor: Larry A. Minnick
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Patent number: 4888374Abstract: A silicone rubber composition comprising an organopolysiloxane and a curing catalyst for the organopolysiloxane. The releasing property of the composition is significantly improved by the addition of N,N'-alkylene bisamide having not less than 10 carbon atoms. The composition is particularly effective for molding in a mold or covering a wire core.Type: GrantFiled: August 8, 1988Date of Patent: December 19, 1989Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Masaharu Takahashi, Takeo Yoshida
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Patent number: 4871590Abstract: A thixotropic hot-melt adhesive contains reactive silane groups and is still viscous and plastically moldable after cooling. It contains a mixture ofat least one thermoplastic material, andat least one thixotropic agent,wherein silane groups are contained either in the thermoplastic material itself or in at least one added silane-based binder.Type: GrantFiled: November 6, 1987Date of Patent: October 3, 1989Assignee: Sika AG, vorm. Kaspar Winkler & Co.Inventors: Peter W. Merz, Lutz-Dieter Zabel
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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: 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: 4755549Abstract: A stabilizer system for stabilizing polyvinyl chloride molding compositions contains at least one zinc compound of the formulasR.sup.1 O--Zn--OR.sup.2 (I)R.sup.3 S--Zn--SR.sup.4 (II), orR.sup.5 O--Zn--SR.sup.6 (III)and one or more polyoxazolines or copolyoxazoline of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, and n are described herein. The stabilized molding compositions exhibit a good initial color, transparency and long-term stability.Type: GrantFiled: July 16, 1987Date of Patent: July 5, 1988Assignee: Huels AktiengesellschaftInventors: Bruno Kemper, Heimo Bieringer
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Patent number: 4694063Abstract: A process for the manufacture of a polyamide powder comprising polymerizing in solution a reaction mixture comprising a monomer lactam or lactams capable of generating said polyamide in the presence of an N,N'-alkylene bisamide.Type: GrantFiled: January 21, 1986Date of Patent: September 15, 1987Assignee: AtochemInventors: Jean-Claude Hilaire, Roland Guerin
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Patent number: 4684684Abstract: A composition comprising an amorphous resin (excluding polyphenylene ether) and a specific diamide compound of the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are defined in the specification. The moldability of the amorphous resin is improved without reducing its heat resistance.Type: GrantFiled: March 7, 1985Date of Patent: August 4, 1987Assignee: Mitsubishi Petrochemical Co., Ltd.Inventors: Katsuhiro Abe, Yoshinobu Kobayashi, Mitsushige Baba
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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: 4582869Abstract: Polyoxymethylene/thermoplastic polyurethane compositions having 5-40 weight percent polyurethane are modified by incorporating therein 0.2-1.0 weight percent ethylene bis-stearamide to improve mold release and mold deposit.Type: GrantFiled: February 21, 1984Date of Patent: April 15, 1986Assignee: E. I. Du Pont de Nemours and CompanyInventor: Marion G. Waggoner
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Patent number: 4530952Abstract: A polyphenylene ether composition comprising polyphenylene ether or a composition containing polyphenylene ether and styrene resin, and a diamide compound represented by the following formula. ##STR1## This composition is improved in processability due to high flowability, with a minimum of decrease in heat resistance.Type: GrantFiled: December 22, 1983Date of Patent: July 23, 1985Assignee: Mitsubishi Petrochemical Co., Ltd.Inventors: Toshiyuki Tayama, Ryohei Tanaka
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Patent number: 4500665Abstract: Codispersed particulate lubricant stabilizer compositions for synthetic resins are provided, the particles consisting essentially of from about 4 parts to about 1 part polyvalent fatty acid soap homogeneously codispersed with from 1 part to about 4 parts alkylene bis(fatty acid amide); as well as synthetic resin compositions containing the same.Type: GrantFiled: June 27, 1983Date of Patent: February 19, 1985Assignee: Argus Chemical CorporationInventors: Lawrence R. Brecker, Charles Keeley
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Patent number: 4490324Abstract: A process is disclosed for the manufacture of nylon packaging film having improved slip characteristics. In the process a homogeneous mixture is formed from a film-forming nylon resin and between 0.05 and 1.0 percent by weight thereof of a material selected from the group consisting of (1) secondary amides of the formula ##STR1## and (2) N, N' ethylene bis amides of the formula ##STR2## where R.sub.1 and R.sub.2 are aliphatic hydrocarbon chains of C.sub.14 -C.sub.22. The homogeneous mixture is then extruded into film subsequently, the film is heated to a temperature between 40.degree. C. and 150.degree. C. for a period of 2 to 30 minutes in order to accelerate the development of improved film slip characteristics. The nylon film having improved slip characteristics is useful for the packaging of bacon and other processed meats.Type: GrantFiled: May 2, 1984Date of Patent: December 25, 1984Assignee: Du Pont Canada Inc.Inventor: Alistair N. Mollison
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Patent number: 4483948Abstract: Under thermal aging conditions of reinforced polymeric materials, some reinforcements are not as effective as others in providing longevity for the fiber reinforced polymeric materials. A method is provided for incorporating an additional amount of antioxidant into the polymeric materials before the reinforcement is added to the polymeric materials or into an aqueous treating solution for the fibrous reinforcement. The antioxidant is of low volatility and good thermal resistance, and when added to the polymer directly is used in an amount greater than three parts per hundred parts of the polymer (PHR). When the antioxidant is added to the aqueous treating solution for treating the fibrous reinforcements, the antioxidant is in the form of an oil-in-water emulsion.Type: GrantFiled: April 5, 1982Date of Patent: November 20, 1984Assignee: PPG Industries, Inc.Inventor: Albert E. Tamosauskas
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Patent number: 4444931Abstract: Nucleating agents have been discovered which enable molded articles to be prepared with smooth glossy surfaces from blends of polyethylene terephthalate and polybutylene terephthalate in the "wet state", i.e., without the resin having been subjected to a predrying stage.The present invention is directed to polyalkylene terephthalate resin compositions. Specifically, it is directed to undried blends of polyethylene terephthalate and polybutylene terephthalate resins with nucleating agents which enable these resin blends to be molded into articles with smooth glossy surfaces. In a preferred embodiment fillers and/or reinforcing materials are added without subjecting the resin to a predrying treatment which has been heretofore necessary in the prior art.Type: GrantFiled: July 7, 1982Date of Patent: April 24, 1984Assignee: Celanese CorporationInventors: Shau-Zou Lu, Melvin Druin
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Patent number: 4395509Abstract: A composition suitable for molding applications containing from about 30 to about 50 weight percent poly(arylene sulfide), about 10 to about 30 weight percent glass fibers, about 30 to about 60 weight percent of a component chosen from glass beads, fused silica and mixtures thereof, from about 0 to about 3 weight percent colorant, and from about 0.5 to about 2 weight percent of a processing aid chosen from among N,N'-alkylenebis(alkanamides), glycerides and phosphated glycerides of saturated fatty acids containing from 10 to 30 carbon atoms, mono- and dialkanolamides derived from saturated fatty acids and esters derived from a saturated long-chained fatty acid and long-chained saturated aliphatic alcohol.Type: GrantFiled: March 2, 1982Date of Patent: July 26, 1983Assignee: Phillips Petroleum CompanyInventors: Jennings P. Blackwell, Dale O. Tieszen, Jack G. Scruggs
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Patent number: 4386178Abstract: Polyacetal molding materials which contain, as a stabilizer, from 0.1 to 10% by weight of a melamine resin, the latter being a melamine-formaldehyde condensate, having a mean degree of polymerization of from 1.2 to 6.0 and a melamine:formaldehyde ratio of from 1:2 to 1:5.5, which has been partially etherified with a C.sub.1 -C.sub.4 -alkanol so that the ratio melamine:ether radicals is from 1:1.5 to 1:5.0 and the ratio melamine:free methylol groups is from 1:0.5 to 1:3. The molding materials can be converted to moldings which can be used industrially at elevated ambient temperatures.Type: GrantFiled: October 28, 1981Date of Patent: May 31, 1983Assignee: BASF AktiengesellschaftInventors: Wilhelm Schuette, Albrecht Hilt, Manfred Walter, Klaus Boehlke
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Patent number: 4359538Abstract: Disclosed is a self-extinguishing polystyrenic composition comprising a polystyrenic resin, a fire-retardant amount of a halogenated organic fire-retardant agent and a nitrogen-containing organic compound selected from the group consisting of amines, amides and ammonium compounds containing from 20 to 40 carbon atoms and their mixtures, said nitrogen-containing compound being used in an amount varying between 0.5 and 50% based on the weight of fire-retardant agent.Type: GrantFiled: April 20, 1981Date of Patent: November 16, 1982Assignee: Labofina, S.A.Inventor: Jean-Noel Marie Bertrand
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Patent number: 4351758Abstract: Nucleating agents have been discovered which enable molded articles to be prepared with smooth glossy surfaces from blends of polyethylene terephthalate and polybutylene terephthalate in the "wet state", i.e., without the resin having been subjected to a predrying stage.The present invention is directed to polyalkylene terephthalate resin compositions. Specifically, it is directed to undried blends of polyethylene terephthalate and polybutylene terephthalate resins with nucleating agents which enable these resin blends to be molded into articles with smooth glossy surfaces. In a preferred embodiment, fillers and/or reinforcing materials are added without subjecting the resin to a predrying treatment which has been heretofore necessary in the prior art.Type: GrantFiled: August 6, 1980Date of Patent: September 28, 1982Assignee: Celanese CorporationInventors: Shau-Zou Lu, Melvin Druin
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Patent number: 4342602Abstract: The invention provides a process for the manufacture of a polyethylene wax micro-powder, 99 weight % of which has a grain size of less than 15 microns, for the dulling of varnishes. Such a micro-powder generally cannot be obtained without difficulty by grinding; in accordance with the invention this is possible, however, by grinding the polyethylene wax together with an amide wax.Type: GrantFiled: October 15, 1980Date of Patent: August 3, 1982Assignee: Hoechst AktiengesellschaftInventors: Karl Petz, Klaus Rieger, Dieter Steidl
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Patent number: 4320039Abstract: A heat-sensitive recording composition with an improved image stability comprises 3-(N-methylcyclohexylamino)-6-methyl-7-anilinofluorane, 4,4'-isopropylidenediphenol capable of color-developing the fluorane through reaction by heating, fatty acid amide as a sensitizer and water-insoluble modified phenol resin having a softening point of 80.degree. to 190.degree. C., where at least 20% by weight of N-monosubstituted fatty acid amide is contained on the basis of total fatty acid amide, and 5 to 50% by weight of the water-insoluble, modified phenol resin is contained on the basis of the 4,4'-isopropylidenediphenol.Type: GrantFiled: October 24, 1980Date of Patent: March 16, 1982Assignee: Mitsubishi Paper Mills, Ltd.Inventors: Sadao Morishita, Fumio Okumura, Masahiro Higuchi, Masahiro Miyauchi, Syun Kamei