Mixed With Polycarboxylic Acid Or Derivative And Polyhydroxy Reactant Or Polymer Therefrom Patents (Class 525/425)
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Patent number: 4595746Abstract: A process for polymerizing .epsilon.-caprolactam to form a nylon-6 polymer in which a reactant stream containing .epsilon.-caprolactam and a lactam polymerization initiator is brought into polymerizing admixture with a reactant stream containing .epsilon.-caprolactam and a lactam magnesium halide, wherein sufficient 2-oxo-1-pyrrolidinyl compound is added to the admixture either as 2-pyrrolidinone, 2-oxo-pyrrolidinyl magnesium halide or 2-oxo-1-pyrrolidinyl capped initiator compound to enhance the rate of polymerization of the .epsilon.-caprolactam.Type: GrantFiled: December 17, 1984Date of Patent: June 17, 1986Assignee: Monsanto CompanyInventors: James D. Gabbert, Ross M. Hedrick
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Patent number: 4593076Abstract: Polymers of caprolactam, having high impact strength, obtained by means of anionic polymerization, containing a rubbery phase distributed homogeneously inside the polymer consisting of alternating copolyesteramides with elastomeric properties, and a related production process, comprising dissolving or swelling the elastomeric phase in monomer caprolactam, and submitting the mixture to a polymerization at temperatures variable within the range of from 120.degree. C. to 180.degree. C., in the presence of a basic initiator, and of an activator.Type: GrantFiled: December 3, 1984Date of Patent: June 3, 1986Assignee: ENICHIMICA, S.p.A.Inventors: Saverio Russo, Giovanni C. Alfonso, Antonio Turturro, Enrico Pedemonte
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Patent number: 4588785Abstract: Block copolyester amides having improved properties are applied as thermoplastic adhesives to textiles. Their melting points are between 80.degree. and 135.degree. C. and the block copolyester amides are prepared by polycondensing:(A) 60 to 95% by weight of a block polyester having terminal hydroxy groups and consisting of at least 50 molar % of the acid proportion of terephthalic acid and 40 to 90 molar percent of an alcohol proportion of 1.4-butanediol and 60 to 10 molar percent of 1.6-hexanediol, wherein up to 10 molar percent referred to 1,6-hexanediol can be replaced by aliphatic diols with longer chains; and(B) 40 to 5% by weight of a block polyamide dicarboxylic acid having a mean molecular weight M.sub.n between 1,000 and 8,000 and obtained from omega-amino-carboxylic acids or lactams having 6 to 12 carbon atoms or their mixtures with aromatic or aliphatic dicarboxylic acids.Type: GrantFiled: July 3, 1985Date of Patent: May 13, 1986Assignee: Chemische Werke Huls AktiengesellschaftInventors: Hanns-Jorg Bax, Gernot Horlbeck, Rainer Feldmann, Salih Mumcu
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Patent number: 4587309Abstract: The high polymerization degree polyetheresteramides without any gelated materials and with superior color tones are obtained in a short time through the polycondensing interaction carried out between (A) one or more than two polyamide forming components selected from lactams and aminocarboxylic acids as well as the salts of substantially-equal quantities of diamines and dicarboxylic acid and (B) the polyetherester forming components consisting of the substantially-equal quantities of dicarboxylic acids and poly(alkylene oxide) glycols in the presence of 0.001 to 0.5 percent by weight of the mixtures composed of antimony oxides/organic tin compounds at the ratios of 80/20 to 30/70 by weight and more preferably in the co-presence of 0.0005 to 0.5 percent by weight of phosphoric compounds.Type: GrantFiled: April 18, 1985Date of Patent: May 6, 1986Assignee: Toray Industries, Inc.Inventors: Chiaki Tanaka, Makoto Kondou, Yoshiyuki Yamamoto
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Patent number: 4579914Abstract: Disclosed are novel blends comprising segmented polyesteramides with minor amounts of aliphatic polyamides.The blends are characterized by good physical properties including improved elongation and solvent resistance over the base polyesteramides. The polymers so obtained find utility in the making of seals, gaskets, bushings, and the like.Type: GrantFiled: March 18, 1985Date of Patent: April 1, 1986Assignee: The Dow Chemical CompanyInventors: Robert G. Nelb, II, Kemal Onder, Keith G. Saunders
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Patent number: 4567227Abstract: A polymer blend which is capable of exhibiting an anisotropic melt phase and the ability to form shaped articles having improved mechanical properties is provided. The improved polymer blend comprises approximately 5 to approximately 95 percent by weight, based upon the total weight of the polymer blend, of a melt-processable wholly aromatic polyester which is substantially free of amide linkages and approximately 5 to approximately 95 percent by weight, based upon the total weight of the blend, of a melt-processable poly(ester-amide). Each of the polymeric components apart from the blend is capable of exhibiting an anisotropic melt phase. Upon injection molding, articles formed from the improved polymer blend surprisingly exhibit at least one property selected from the group consisting of tensile strength, tensile modulus, flexural strength and flexural modulus which exceeds that of each of the polymeric components of the blend when separately injection-molded.Type: GrantFiled: November 13, 1984Date of Patent: January 28, 1986Assignee: Celanese CorporationInventor: Gabor D. Kiss
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Patent number: 4565850Abstract: A thermotropic oligomer such as a polyester is blended with a high molecular weight thermoplastic polymer such as poly(ethylene terephthalate) to raise the modulus value of the composition compared to the polymer alone, especially at the glass transition temperature of the polymer and above.Type: GrantFiled: March 3, 1983Date of Patent: January 21, 1986Assignee: Allied CorporationInventors: Dusan C. Prevorsek, Murali K. Akkapeddi
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Patent number: 4563492Abstract: A resinous composition for coating use comprising an amphoteric resin having an acidic resinous component and a basic component of a basic compound, and an amino-formaldehyde resin etherified with monohydric alcohol having 1 to 4 carbon atoms and/or isocyanate compound, which is characterized by the fact that the basic component of a said amphoteric resin consists of a basic compound whose titration midpoint potential in non-aqueous potentiometric titration, when incorporated into the resin, is less than 450 mV, and the basicity of the amphoteric resin is within the range of 1.0.times.10.sup.-2 to 1.0 m mol/g solid. This composition can exhibit excellent pigment dispersibility and is useful as resinous vehicle for a coating composition to be used as a top coat for automobile bodies and the like.Type: GrantFiled: January 30, 1984Date of Patent: January 7, 1986Inventors: Hirotoshi Umemoto, Hisaki Tanabe, Akihiro Kanakura, Shinji Nakano
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Patent number: 4558085Abstract: The fast crystallizing polyalkyleneterephthalate resin compositions disclosed herein contain 0.05-4 percent by weight of a sodium salt of a hydrocarbon acid having the formula R.degree.(COO).sub.y Na.sub.z wherein R.degree. is a hydrocarbon group having a valency of y and having 1-25 carbon atoms therein, preferably 1-10 carbon atoms, y is an integer having a value of at least one, advantageously 1-10 and preferably 1-3, and z is an integer having a value of at least one and no greater than the value of y, this sodium salt of the hydrocarbon acid being in the form of a complex with a polymeric compound, which contains at least two recurring units of the formula --CH.sub.2 CH.sub.2 O--, together with reinforcing agents, fillers and/or additives and optionally a flow promoter selected from low molecular weight organic esters or polymers containing a recurring structure of [(CH.sub.2).sub.x O--].sub.Type: GrantFiled: August 20, 1984Date of Patent: December 10, 1985Assignee: Plastics Engineering CompanyInventor: Chung J. Lee
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Patent number: 4554119Abstract: The properties of shaped articles of poly {[benzo(1,2-d:4,5-d')bisthiazole-2,6-diyl]-1,4-phenylene}, its cis isomer and mixtures thereof are improved by a process of heat treatment under tension. The articles may be prepared from a dope obtained by dissolving the formed polymer in an appropriate solvent or by forming the polymer under conditions which enable the article to be prepared directly from the reaction medium.Type: GrantFiled: April 11, 1983Date of Patent: November 19, 1985Assignee: Celanese CorporationInventor: Edward C. Chenevey
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Patent number: 4548997Abstract: Disclosed are blends of (a) a polyetherimide and (b) a thermoplastic polycarbonate. The blends exhibit a higher heat distortion temperature and an improved flexural strength and tensile strength over the polycarbonate component alone and have a higher impact strength than that associated with the polyetherimide component of the blends. In addition, the blends may exhibit good flame resistance.Type: GrantFiled: May 22, 1984Date of Patent: October 22, 1985Assignee: General Electric CompanyInventors: Gary A. Mellinger, Harold F. Giles, Jr., Fred Holub, William R. Schlich
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Patent number: 4547547Abstract: The impact resistance and crystallization velocity of polyalkylene terephthalates (polyethylene and polybutylene terephthalates in particular) are improved significantly by blending said polyesters with a minor amount of a segmented polyesteramide.Type: GrantFiled: December 1, 1983Date of Patent: October 15, 1985Assignee: The Dow Chemical CompanyInventors: Augustin T. Chen, Kemal Onder
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Patent number: 4539370Abstract: The present invention relates to thermoplastic moulding compositions of (A) thermoplastic polycarbonates, mixed with (B) thermoplastic polyalkylene terephthalates and, if appropriate, with (C) elastomeric polymers, which are characterized in that they contain (D) a thermoplastic based on a polyether-imide.Type: GrantFiled: July 17, 1984Date of Patent: September 3, 1985Assignee: Bayer AktiengesellschaftInventors: Werner Nouvertne, Wolfgang Stix
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Patent number: 4536563Abstract: A process for manufacturing a colorless polyetheresteramide, which comprises the step of reacting (A) a polyamide-forming compound selected from aminocarboxylic acids and lactams each having at least 10 carbon atoms, (B) a dicarboxylic acid having from 4 to 20 carbon atoms and (D) a polyoxyalkylene glycol having an average molecular weight of from 300 to 6,000, in the molten state, in the presence of 0.0001 to 0.00999 percent by weight, based on the total weight of the above mentioned reactants, of a tetraalkyl titanate having a straight or branched alkyl having 1 to 24 carbon atoms, at a pressure of at the highest 5 mmHg at a temperature of 200.degree. to 300.degree. C.Type: GrantFiled: November 5, 1984Date of Patent: August 20, 1985Assignee: Daicel Chemical Industries, Ltd.Inventors: Kiyoshi Okitsu, Hiroyouki Go
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Patent number: 4530975Abstract: A polyamide-imide resin composition comprising (A) a polyamide-imide resin modified with a polyisocyanate containing one or more isocyanurate rings and a lactam and (B) at least one member selected from the group consisting of (i) an alkoxy modified amino resin, (ii) a polyisocyanate containing one or more isocyanurate rings, (iii) a phenol-formaldehyde resin, (iv) an epoxy resin, (v) a polyester resin having one or more hydroxyl groups obtained by using terephthalic acid and/or isophthalic acid as an acid component, and (vi) a metal salt of Sn, Mn, Co or Zn, can give fast curing properties to the resin composition without lowering heat resistance, flexibility, abrasion resistance and also giving good surface appearance to the coating.Type: GrantFiled: September 30, 1982Date of Patent: July 23, 1985Assignee: Hitachi Chemical Company, Ltd.Inventors: Yoshiyuki Mukoyama, Touichi Sakata, Yuichi Osada
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Patent number: 4528307Abstract: This invention relates to radiation hardenable primers based on prepolymers containing (meth) acryloyl groups and conventional auxiliary agents. The primers are characterized in that they contain organic and/or inorganic fibres having a fibre length distribution curve reaching its maximum in the region of from 50 to 600 .mu.m. These primers are suitable for coating articles which have absorbent surfaces, in particular for the continuous coating of wood-concrete articles such as wood-concrete boards.Type: GrantFiled: September 15, 1983Date of Patent: July 9, 1985Assignee: Bayer AktiengesellschaftInventors: Karl Fuhr, Hans-Joachim Freier
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Patent number: 4524191Abstract: A polyester composition for molding having improved molding properties is disclosed, comprising 100 parts by weight of a polyester comprising mainly polyethylene terephthalate and 0.05 to 10 parts by weight of an aromatic polyamide as a nucleating agent which is uniformly dispersed in the polyester in a substantial size of 50 .mu.m or less. A process for producing the polyester composition is also disclosed.Type: GrantFiled: January 31, 1983Date of Patent: June 18, 1985Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Katuyuki Nakamura, Kazuya Neki
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Patent number: 4517342Abstract: A heat curable composition is provided convertible to a high strength silicone elastomer. A norbornane silicone block copolymer having silicon hydride or silicon vinyl functional groups in the silicone block is used in combination with an effective amount of a platinum catalyst and a polyfunctional organosilicon material capable of undergoing a polyaddition reaction with the norbornane silicone block copolymer when thermally activated.Type: GrantFiled: May 11, 1984Date of Patent: May 14, 1985Assignee: General Electric CompanyInventor: Hong-Son Ryang
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Patent number: 4511684Abstract: The instant invention relates to thermoplastically processable polyamides which are rendered flame retardant by means of a new flame retarding agent; the conversion product of cyanuric acid and triazine compounds having free --NH.sub.2 in a molar ratio of at least 2 triazine nuclei per mole of cyanuric acid. The properties of polyamide thermoplasts are changed only slightly through the incorporation of the new flame retarding agent.Type: GrantFiled: December 15, 1982Date of Patent: April 16, 1985Assignee: Ems-Inventa AGInventors: Eduard Schmid, Manfred Hoppe
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Patent number: 4501781Abstract: A hollow blow-molded bottle-shaped container of biaxially oriented resin mixture material comprising a polyethylene terephthalate resin and a xylylene group-containing polyamide resin, wherein the resin mixture material contains 5 to 30% of the xylylene group-containing polyamide resin to the polyethylene terephthalate resin. In this container, inner and outer surface layers of the container are formed of the polyethylene terephthalate resin, and the intermediate layer of the container is formed of the mixture resin material. In this manner, the gas barrier properties of the container can be enhanced.Type: GrantFiled: February 4, 1983Date of Patent: February 26, 1985Assignee: Yoshino Kogyosho Co., Ltd.Inventors: Hideo Kushida, Sumio Takahashi, Shuichi Koshio
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Patent number: 4496715Abstract: Polymeric amide-imide-ester wire enameling compositions are prepared from (1) a monoanhydride of an aromatic tricarboxylic acid, e.g. trimellitic anhydride, (2) an aromatic primary diamine compound and (3) either polyfunctional acids and polyhydroxy compounds or the polyesters thereof. At least a portion of the polyol or polyhydroxy compound is a tris (hydroxyalkyl) isocyanurate, e.g. tris (hydroxyethyl) isocyanurate. The polyfunctional acids (3) comprise an acid component selected from the group consisting of trimellitic anhydride, isophthalic acid and esters of isophthalic and terephthalic acid. The polymeric amide-imide-ester may be blended with terephthalate or isophthalate polyesters, polyisocyanates and other materials. One particularly suitable polyisocyanate is prepared from dimethylterephthalate, tris (2-hydroxyethyl) isocyanurate and tolylene diisocyanate.Type: GrantFiled: October 29, 1979Date of Patent: January 29, 1985Assignee: Westinghouse Electric Corp.Inventor: Frank A. Sattler
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Patent number: 4489150Abstract: A novel toner composition with improved thermal and rheological properties, improved surface energy, and better frangibility is provided. The toner comprises a thermoplastic polymeric blend and a coloring agent. The polymeric blend is comprised of propoxylated bisphenol-A fumarate and a polyester resin with a chemically bound halogen. A preferred polyester resin with a chemically bound halogen is tetrabromo-bisphenol fumarate polyester. An improved electrophotographic imaging process using the toner particles of the present invention is also provided.Type: GrantFiled: June 8, 1983Date of Patent: December 18, 1984Assignee: Ricoh Company, Ltd.Inventors: Shaw-Ping Chang, Paul Shieh
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Patent number: 4483975Abstract: Copolyetheresteramides containing, incorporated by condensation,20 to 40% by weight of caprolactam and/or .epsilon.-aminocaproic acid,10 to 30% by weight of an equimolecular mixture of adipic acid and primary aliphatic and/or cycloaliphatic C.sub.6 to C.sub.25 diamines,10 to 30% by weight of an equimolecular mixture of azelaic or sebacic acid and primary aliphatic and/or cycloaliphatic C.sub.6 to C.sub.25 diamines and20 to 40% by weight of an equimolecular mixture of decanedicarboxylic and/or brassylic acid and primary aliphatic and/or cycloaliphatic C.sub.6 to C.sub.25 diamines,always related to the total quantity of the polyamide-forming components, and in which, for 65 to 90% by weight of the total quantity of the polyamide-forming components, there are 10 to 35% by weight of the equimolecular quantities of saturated aliphatic linear dicarboxylic acids, having 6 to 13 C-atoms, and poly(alkylene oxide diols) as polyetherester-forming component, and a process for their preparation.Type: GrantFiled: December 21, 1983Date of Patent: November 20, 1984Assignee: Plate Bonn Gesellschaft mit beschrankter HaftungInventors: Eduard de Jong, Karl-Heinz Hapelt, Helmut Knipf
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Patent number: 4480007Abstract: Improved enamels and insulated electrical articles produced therefrom are described. The enamels are composed of solutions of curable resin which have been modified to contain nylon polymer. This polymer facilitates application of the enamel to a metallic conductor so as to produce an especially smooth and desirable insulation coating.Type: GrantFiled: May 21, 1982Date of Patent: October 30, 1984Assignee: General Electric CompanyInventor: Denis R. Pauze
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Patent number: 4478913Abstract: Electrical coating compositions comprise blended polyesterimides and from 1 to 20 percent by weight of total solids of an ester terminated amide imide. Such compositions provide insulation coatings on electrical conductors which have superior smoothness, even after high speed coating operations.Type: GrantFiled: May 24, 1982Date of Patent: October 23, 1984Assignee: General Electric CompanyInventor: Denis R. Pauze
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Patent number: 4461786Abstract: Electrical coating compositions comprise blended polyesterimides and from 1 to 20 percent by weight of total solids of an ester terminated amide imide. Such compositions provide insulation coatings on electrical conductors which have superior smoothness, even after high speed coating operations.Type: GrantFiled: May 24, 1982Date of Patent: July 24, 1984Assignee: General Electric CompanyInventor: Denis R. Pauze
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Patent number: 4459389Abstract: Copolyether ester amides having a melting point between about 85.degree. and 140.degree. C. from:(A) lactams of omega-aminocarboxylic acids and/or equivalent amounts of dicarboxylic acids and diamines as polyamide-forming compounds; and(B) dicarboxylic acids and polyalkylene oxide diols as polyether ester forming compounds as thermoplastic adhesives for heat sealing textiles, wherethe polyamide forming compounds consist of at least 30% by weight of lauryllactam and the remaining compounds together with lauryllactam result in copolyamides which have melting points which lie in the range between about 90.degree. to 150.degree. C.;aliphatic dicarboxylic acids are used as the dicarboxylic acids; andcomponents A and B are used in the weight ratio from 93/7 to 35/65.Type: GrantFiled: July 15, 1982Date of Patent: July 10, 1984Assignee: Chemische Werke Huls AGInventors: Salih Mumcu, Rainer Feldmann
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Patent number: 4448937Abstract: Blends of polyetherimides and block poly(esteramides) may contain about 99-1% by weight of the former and about 1-99% of the latter. Particularly useful are polyetherimides containing about 1-30% of the block poly(esteramide), which have improved impact strength and resistance to brittleness. The blends may also contain at least one poly(alkylene dicarboxylate) as a compatibility improver.Type: GrantFiled: April 21, 1983Date of Patent: May 15, 1984Assignee: General Electric CompanyInventors: Richard C. Bopp, Joseph C. Golba, Jr., Scott A. White
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Patent number: 4442057Abstract: A process of melt spinning a fibre-forming polymer particularly polyethylene terephthalate or poly-hexamethylene adipamide at a minimum wind up speed of 1000 meters per minute in which there is added to the fibre-forming polymer before spinning a small proportion of a polymer capable of forming an anisotropic melt in the temperature range at which the fibre-forming polymer may be melt spun whereby in the process there is suppression of wind up speed compared with the process carried out in the absence of the added polymer.Type: GrantFiled: May 29, 1981Date of Patent: April 10, 1984Assignee: Imperial Chemical Industries LimitedInventor: Harry Brody
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Patent number: 4439578Abstract: Thermoplastic molding compositions are provided which have enhanced resistance to melt dripping during burning. Such molding compositions are modified by the inclusion of particulates of liquid crystal polymers which have a high aspect ratio which enhance the ability of the thermoplastic polymer to resist melt dripping.Type: GrantFiled: November 9, 1981Date of Patent: March 27, 1984Assignee: Celanese CorporationInventors: Sang N. Kim, John R. Kastelic
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Patent number: 4438233Abstract: The fast crystallizing polyalkyleneterephthalate resin compositions disclosed herein contain 0.05-4 percent by weight of lithium bromide, chloride or iodide in the form of a selected complex of the lithium halide (LiX) and an organic compound, such as a polymeric compound, which contains at least two recurring units of the formula --CH.sub.2 CH.sub.2 O-- together with reinforcing agents, fillers and/or additives and optionally a flow promoter selected from low molecular weight organic esters or block copolymers containing a recurring structure of [(CH.sub.2).sub.x O--].sub.m wherein x is an integer of no more than 5 and m is an integer ranging from 2, preferably from 200 to about 5,000. The amount of complex is such as to give 0.05 to 4 percent, preferably 0.1-2 percent by weight of LiX based on the weight of polyalkyleneterephthalate.Type: GrantFiled: September 20, 1982Date of Patent: March 20, 1984Assignee: Plastics Engineering CompanyInventor: Chung J. Lee
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Patent number: 4438236Abstract: A melt-processable composition comprising at least one polymer capable of forming an anisotropic melt and at least one other melt-processable polymer characterized in that the temperature range over which the polymer can form an anisotropic melt overlaps the temperature range over which the melt-processable polymer may be melt processed. The melt viscosity of such compositions may be very much less than that of the melt-processable polymer in the absence of the anisotropic melt-forming polymer particularly at high shear rates, corresponding to those encountered during moulding and extrusion operations. On the other hand at low shear rates and particularly when the concentration of anisotropic melt-forming polymer does not exceed 5% by weight increases in melt viscosity are obtainable which are valuable in fabrication processes operated at low shear rate where retention of form stability is required.Type: GrantFiled: June 14, 1982Date of Patent: March 20, 1984Assignee: Imperial Chemical Industries PLCInventors: Frederic N. Cogswell, Brian P. Griffin, John B. Rose
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Patent number: 4433117Abstract: A copolymer having high strength and high elastic modulus is produced by copolymerizing (a) a polyamide oligomer prepared from a piperazine compound and an aromatic dicarboxylic acid and (b) a polyalkylene terephthalate monomer or a prepolymer thereof. The copolymer is useful as a rubber reinforcing fiber, a magnetic tape base film, and a coating material.Type: GrantFiled: March 8, 1983Date of Patent: February 21, 1984Assignee: Kuraray Co., Ltd.Inventors: Motowo Takayanagi, Yoshihumi Murata
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Patent number: 4433083Abstract: A melt-processable composition comprising at least one polymer capable of forming an anisotropic melt and at least one other melt-processable polymer characterized in that the temperature range over which the polymer can form an anisotropic melt overlaps the temperature range over which the melt-processable polymer may be melt processed. The melt viscosity of such compositions may be very much less than that of the melt-processable polymer in the absence of the anisotropic melt-forming polymer particularly at high shear rates, corresponding to those encountered during moulding and extrusion operations.Type: GrantFiled: June 9, 1982Date of Patent: February 21, 1984Assignee: Imperial Chemical Industries PLCInventors: Frederic N. Cogswell, Brian P. Griffin, John B. Rose
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Patent number: 4431758Abstract: A heat resistant resin produced by reacting (A) a polyamideimide resin with (B) an alcohol component and (C) an acid component with heating is soluble in a cresol type solvent and gives coatings excellent in heat resistance, thermal shock resistance, wear resistance, resistance to hydrolysis, etc., suitable for enamelled wire.Type: GrantFiled: March 31, 1982Date of Patent: February 14, 1984Assignee: Hitachi Chemical Company, Ltd.Inventors: Yuichi Osada, Shozo Kasai, Yasunori Okada, Isao Uchigasaki, Toyoji Oshima, Yoshiyuki Mukoyama, Hiroshi Nishizawa
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Patent number: 4430484Abstract: Novel thermoplastic compositions are disclosed which comprise blends of:(a) a polyester-carbonate resin; and(b) at least one polymer selected from the group consisting of (i) polyamides, (ii) polyimides, (iii) polyamideimides, and (iv) mixtures thereof.Type: GrantFiled: August 30, 1982Date of Patent: February 7, 1984Assignee: General Electric CompanyInventor: Clayton B. Quinn
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Patent number: 4418164Abstract: Coating of aramid filaments with certain polyfunctional aziridines increases interlaminar shear strength of unsaturated polyester matrix composites.Type: GrantFiled: July 19, 1982Date of Patent: November 29, 1983Assignee: E. I. Du Pont de Nemours and CompanyInventors: Francis M. Logullo, Sr., Yun-Tai Wu
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Patent number: 4417031Abstract: A process for preparing block, and/or graft copolymeric compositions by forming an intimate mixture of two or more polymers, at least one of which includes one or more amino junctions and at least one of the remaining polymers includes one or more carboxylic acid junctions and an effective amount of a phosphite compound, and thereafter heating the intimate mixture at a temperature and for a time sufficient to form the desired block, and/or graft copolymers.Type: GrantFiled: January 7, 1982Date of Patent: November 22, 1983Assignee: Allied CorporationInventors: Shaul M. Aharoni, Theodore Largman
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Patent number: 4417021Abstract: A polyester composition for molding having improved molding properties is disclosed, comprising 100 parts by weight of a polyester comprising mainly polyethylene terephthalate and 0.05 to 10 parts by weight of a specific type of polyamide as a nucleating agent which is uniformly dispersed in the polyester in a substantial size of 50 .mu.m or less. A process for producing the polyester composition is also disclosed.Type: GrantFiled: April 8, 1981Date of Patent: November 22, 1983Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventor: Katuyuki Nakamura
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Patent number: 4409372Abstract: Improved paint brush bristles and provided from a blend of nylon 6/6 or nylon 6/12, together with between 4-15%, depending upon the shape and size of the filament, of a co-polyester derived from terephthalic and isophthalic acids with cyclohexane dimethanol.Type: GrantFiled: January 20, 1982Date of Patent: October 11, 1983Assignee: Ametek, Inc.Inventors: John Ward, Robert E. Austin
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Patent number: 4405741Abstract: The fast crystallizing polyalkyleneterephthalate resin compositions disclosed herein contain 0.05-4 percent by weight of NaSCN in the form of a selected complex of sodium thiocyanate (NaSCN) and an organic compound, such as a polymeric compound, which contains at least two recurring units of the formula -CH.sub.2 CH.sub.2 O- together with reinforcing agents, fillers and/or additives and optionally a flow promoter selected from low molecular weight organic esters or block copolymers containing a recurring structure of [(CH.sub.2).sub.x O--].sub.m wherein x is an integer of no more than 5 and m is an integer ranging from 2, preferably from 200 to about 5,000. The amount of complex is such as to give 0.05 to 4 percent, preferably 0.1-2 percent by weight of NaSCN based on the weight of polyalkyleneterephthalate.Type: GrantFiled: September 20, 1982Date of Patent: September 20, 1983Assignee: Plastics Engineering CompanyInventor: Chung J. Lee
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Patent number: 4391956Abstract: An impact modified nylon comprised of 50 to 95 weight percent nylon 6 and 5 to 50 weight percent polyester elastomer.Type: GrantFiled: January 4, 1982Date of Patent: July 5, 1983Assignee: The Polymer CorporationInventor: Howard A. Scheetz
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Patent number: 4391943Abstract: Nylon 6 molding and extrusion grade resins are stabilized against UV degradation by the addition of small amounts of carbon black. The elongation and impact strength of the nylon are preserved, if not improved, by melt blending from 5% to 50% by weight of an elastomeric polyester with the nylon and carbon black.Type: GrantFiled: January 4, 1982Date of Patent: July 5, 1983Assignee: The Polymer CorporationInventor: Howard A. Scheetz
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Patent number: 4386174Abstract: A melt-processable composition comprising at least one polymer capable of forming an anisotropic melt and at least one other melt-processable polymer characterized in that the temperature range over which the polymer can form an anisotropic melt overlaps the temperature range over which the melt-processable polymer may be melt processed. The melt viscosity of such compositions may be very much less than that of the melt-processable polymer in the absence of the anisotropic melt-forming polymer particularly at high shear rates, corresponding to those encountered during moulding and extrusion operations.Type: GrantFiled: November 17, 1980Date of Patent: May 31, 1983Assignee: Imperial Chemical Industries LimitedInventors: Frederic N. Cogswell, Brian P. Griffin, John B. Rose
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Patent number: 4381372Abstract: Polymers and oligomers of the formula ##STR1## are useful as ultraviolet light stabilizers for various polymers, especially polyolefins.Type: GrantFiled: April 8, 1981Date of Patent: April 26, 1983Assignee: American Cyanamid CompanyInventor: Frank F. Loffelman
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Patent number: 4377546Abstract: A novel method is taught for preparing polymeric alloys composed of a mixture of an aromatic heterocyclic rod-like reinforcing polymer and an aromatic heterocyclic coil-like amorphous mixture with vastly improved mechanical properties.Type: GrantFiled: August 11, 1981Date of Patent: March 22, 1983Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: Thaddeus E. Helminiak, Charles L. Benner, Fred E. Arnold, George Husman
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Patent number: 4373059Abstract: The invention concerns a pre-condensed, thermosetting aqueous lacquer coating material containing a pre-condensation product that becomes water-dilutable after protonization with acids and has a mean molecular weight [M.sub.n ] of 800 to 15,000, obtainable by heating of 55 to 95% by weight, based on the total quantity of the binding agent, of an organic synthetic-resin binder containing primary and/or secondary amino groups which has an amine number of 30 to 150 and 5 to 45% by weight of a crosslinking agent possessing esterified terminal carboxyl groups.The invention moreover concerns the application of this lacquer coating material for cathodic deposition upon electrically conducting surfaces.Type: GrantFiled: September 2, 1980Date of Patent: February 8, 1983Assignee: Herberts Gesellschaft mit Beschrankter HaftungInventors: Hans-Peter Patzschke, Armin Gobel
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Patent number: 4365036Abstract: The fast crystallizing polyalkyleneterephthalate resin compositions disclosed herein contain 0.025-2 percent by weight of NaI in the form of a selected complex of sodium iodide (NaI) and an organic compound, such as a polymeric compound, which contains at least two recurring units of the formula --CH.sub.2 CH.sub.2 O-- together with reinforcing agents, fillers and/or additives and optionally a flow promoter selected from low molecular weight organic esters or block copolymers containing a recurring structure of [(CH.sub.2).sub.x O--].sub.m wherein x is an integer of no more than 5 and m is an integer ranging from 2, preferably from 200 to about 5,000. The amount of complex is such as to give 0.025-2 percent, preferably 1-2 percent by weight of NaI based on the weight of polyalkyleneterephthalate.Type: GrantFiled: December 15, 1981Date of Patent: December 21, 1982Assignee: Plastics Engineering CompanyInventor: Chung J. Lee
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Patent number: 4362847Abstract: The present invention is directed to thermosetting binder compositions for coating, comprising:(I) (1) A non-acidic resinous compound, saturated, molecular weight at least 900, alcoholic hydroxyl content at least 0.2 eq/100 g;(2) a cross-linking agent comprising a non-acidic polyester of a polycarboxylic acid, having more than one beta-hydroxyl ester group per molecule, at least one of components (1) and (2) having an alcoholic hydroxyl functionality of more than 2, and(II) a curing catalyst comprising a transesterification-promoting metal compound which is insoluble in liquid hydrocarbons.These compositions can be used in solvent-based lacquers and paints, in coating powders, aqueous powder suspensions, in aqueous coating compositions for cathodic electrodeposition; for aqueous compositions component (I) (1) is preferably an epoxy resin/amine adduct.Type: GrantFiled: April 20, 1981Date of Patent: December 7, 1982Assignee: Shell Oil CompanyInventors: Petrus G. Kooijmans, Werner T. Raudenbusch, Adrianus M. C. Van Steenis, Wolfgang Kunze, Josepha M. E. Seelen-Kruijssen
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Patent number: 4361695Abstract: New polyesters of N,N-di-alkanol-amines with di-(hydroxy-alkyl-benzyl) malonic acids are disclosed.The new polyesters are useful for stabilizing thermoplastic polymers, in particular polyolefins, against sunlight, heat and oxidation.A process for producing the new polyesters is also disclosed, as well as the polymeric compositions stabilized with said new polyesters.Type: GrantFiled: November 5, 1980Date of Patent: November 30, 1982Assignee: Montedison S.p.A.Inventors: Piero Di Battista, Giuseppe Nelli, Francesco Gratani