Polycarboxylic Acid Or Derivative Contains Three Or More Carboxylic Acid Groups; Or Polyamine Contains Three Or More Amino Groups; Or From An Amino Containing Polycarboxylic Acid Or Derivative Other Than Amine Solely In Salt Form; Or From Polyamino Carboxylic Acid Or Derivative Other Than Wherein Amino Groups Are Solely In Salt Form Patents (Class 525/180)
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Patent number: 6780481Abstract: A melt processable polymer composition that comprises a thermoplastic non-aliphatic host polymer and a minor but effective amount of a fluoropolymer processing aid, and a method of improving the melt processability of the host polymer are provided.Type: GrantFiled: May 12, 2000Date of Patent: August 24, 2004Assignee: 3M Innovative Properties CompanyInventors: Claude Lavallée, Maria P. Dillon, Thomas J. Blong, Susan S. Woods, Shannon S. Le Blanc
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Patent number: 6770378Abstract: Compounds which, for example, can be used as a compact substance and which are comprised of polyamide substance(s) and perfluoralkyl substance(s), and to mixtures of these compounds with additional polymer substance(s). Methods for producing such compounds are also provided in which aliphatic and/or partially aromatic homopolyamides and/or copolyamides and/or polyester amides and/or polyether amides and/or polyester ether amides and/or polyimide amides and/or polyamide amides and/or mixtures of these polyamide compound(s) with additional polymer(s) and modified perfluoralkyl substance(s) are compounded in a single step or multistep and are reactively converted during or afterwards. The homogenization of perfluoralkyl substance(s) in polyamide substance(s) melted masses is improved.Type: GrantFiled: January 5, 2001Date of Patent: August 3, 2004Assignee: Institut fur Polymerforschung E.V. DresdenInventor: Dieter Lehmann
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Publication number: 20040102576Abstract: It is to provide a block copolymer and its copolymer composition which provides a heat shrinkable (multilayer) film with less spontaneous shrinkage while maintaining favorable low temperature shrinkability, and a heat shrinkable (multilayer) film containing the block copolymer.Type: ApplicationFiled: May 8, 2003Publication date: May 27, 2004Inventors: Masamitsu Matsui, Hideki Watanabe, Jun Yoshida, Hisakazu Hoshino
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Patent number: 6731362Abstract: The present invention relates to a polymer blend of cinnamate polymer and polyimide polymer, which are photo-reactive polymers, for preparing liquid crystal alignment layer having a high pretilt angle in photo-alignment, a process for preparing liquid crystal alignment layer by employing the said blend, a liquid crystal alignment layer prepared by the process, and a crystal cell prepared by employing the liquid crystal alignment layer. The polymer blend for preparing liquid crystal alignment layer of the invention comprises 10 to 90% (w/w) of cinnamate polymer and 10 to 90% (w/w) of polyimide polymer. Since the liquid crystal alignment layer prepared by employing the polymer blend of the invention has an excellent alignment property and thermal stability, which makes possible its wide application in the development of liquid crystal displays.Type: GrantFiled: November 28, 2001Date of Patent: May 4, 2004Assignee: Korea Advanced Institute of Science and TechnologyInventors: Jung-Ki Park, Hee-Tak Kim, Jong-Woo Lee, Shi-Joon Sung
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Patent number: 6566449Abstract: A rubber composition comprises at least one rubber ingredient selected from natural rubber and synthetic rubbers, and a polymaleimide synthesized by reacting at least one of anhydrous maleic acid and anhydrous citraconic acid with methylene polyaniline.Type: GrantFiled: October 19, 2001Date of Patent: May 20, 2003Assignee: Bridgestone CorporationInventors: Kenichi Sugimoto, Masahiro Hojo
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Patent number: 6552127Abstract: A thermoplastic resin composition comprising a blend obtainable by blending 0.1 to 99% by weight of (a) a fluorine-containing polymer having a number-average molecular weight of 2000 to 1000000 and having hydroxy group or epoxy group at least at one of end portions of a main chain and side chain of the polymer, and 1 to 99.9% by weight of (b) a heat resisting thermoplastic resin having a crystalline melting point or glass transition temperature of not less than 150° C.Type: GrantFiled: March 31, 2000Date of Patent: April 22, 2003Assignee: Daikin Industries, Ltd.Inventors: Tetsuo Shimizu, Yoshihisa Yamamoto, Seitaro Yamaguchi, Nobuhiko Tsuda, Noriyasu Yamane, Takafumi Yamato, Masahiro Kumegawa, Takayuki Araki
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Patent number: 6518334Abstract: This invention relates to polymer blends comprising a polycarboxypolyamide resin with an alkali dispersible resin. This invention also relates to the use of the polymer blends to prepare aqueous dispersions. The aqueous dispersions were obtained by heating polycarboxypolyamide resins with alkali dispersible resins in an aqueous medium. The invention further relates to coating compositions containing the aqueous dispersions. Such coating compositions include inks, floor finishes, overprint varnishes, sizing, paints and adhesives.Type: GrantFiled: March 22, 2000Date of Patent: February 11, 2003Assignee: JohnsonDiversey, Inc.Inventors: Glenn C. Calhoun, Michael T. Sarkis
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Publication number: 20020188075Abstract: The present invention relates to a polymer blend of cinnamate polymer and polyimide polymer, which are photo-reactive polymers, for preparing liquid crystal alignment layer having a high pretilt angle in photo-alignment, a process for preparing liquid crystal alignment layer by employing the said blend, a liquid crystal alignment layer prepared by the process, and a crystal cell prepared by employing the liquid crystal alignment layer. The polymer blend for preparing liquid crystal alignment layer of the invention comprises 10 to 90% (w/w) of cinnamate polymer and 10 to 90% (w/w) of polyimide polymer. Since the liquid crystal alignment layer prepared by employing the polymer blend of the invention has an excellent alignment property and thermal stability, which makes possible its wide application in the development of liquid crystal displays.Type: ApplicationFiled: November 28, 2001Publication date: December 12, 2002Inventors: Jung-Ki Park, Hee-Tak Kim, Jong-Woo Lee, Shi-Joon Sung
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Patent number: 6492443Abstract: A norbornene resin composition comprising 100 parts by weight of a thermoplastic norbornene polymer and 1 to 150 parts by weight of a thermosetting resin.Type: GrantFiled: April 7, 1999Date of Patent: December 10, 2002Assignee: Nippon Zeon Co., Ltd.Inventors: Junji Kodemura, Yasuo Tsunogae, Yasuhiro Wakizaka
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Publication number: 20020161122Abstract: A sulfur-containing water insoluble hydrogel polymer for selectively removing trace amounts of dissolved metal species is produced from a reaction product of nitrilotriacetic acid (NTA) and polyethylenimine (PEI) which is then treated in a water-swollen state with carbon disulfide. The polymer has a physical configuration that facilitates formation of a porous stationary bed through which water can pass for treatment.Type: ApplicationFiled: March 15, 2001Publication date: October 31, 2002Inventor: Norman B. Rainer
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Patent number: 6437031Abstract: The invention relates to compositions and methods for reducing food deposit adhesion to cookware. More specifically this invention relates to a resin composition having a glass transition temperature of at least 180° C. containing an amount of at least one fluorinated compounds, optionally also containing at least one additive selected from fatty acid esters, fatty acid amide, anionic surfactant, or a mixture containing at least one of the foregoing, to reduce food deposit adhesion on cookware made from the composition. The invention also relates to a method for providing plastic cookware having reduced food deposit adhesion.Type: GrantFiled: June 21, 2000Date of Patent: August 20, 2002Assignee: General Electric CompanyInventors: Cornelis Johannes Lensvelt, Jan Paul Penning, Robert Puyenbroek
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Patent number: 6417284Abstract: A release coating layer comprising a continuous phase of an organic polymer binder; a discontinuous phase of a fluorinated resin having a molecular weight between 2500 and 10,000,000, wherein the ratio of organic polymer binder to fluorinated resin is between 60:39.9 to 80:18 by weight; and a priming agent composition comprising a perfluoroalkylsubstituted fluororesin-reactive compound having the formula: where R5 is H or F, Q is OH, SiR6R7R8, R6, R7, and R8 being independently selected from the group consisting of Cl, OH, an alkyl group containing 1 to about 4 carbon atoms, an alkoxy group containing 1 to about 4 carbon atoms, an acyloxy group containing 2 to about 4 carbon atoms, and an amino group containing 0 to about 4 carbon atoms; and n is an integer from 1 to about 15; with the proviso that, at least one of R6, R7, and R8 is Cl, OH, or an alkoxy, acyloxy, or amino group.Type: GrantFiled: September 30, 1999Date of Patent: July 9, 2002Assignee: NexPress Solutions LLCInventors: Jiann-Hsing Chen, Biao Tan, Joseph A. Pavlisko, Robert A. Lancaster, Craig M. Cody
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Patent number: 6359075Abstract: A process of preparing a diblock/triblock composition in a single reaction vessel includes reacting a first monomer, such as styrene, with a first portion of an anionic catalyst in a suitable solvent to form a first polymer block of the triblock. A second step includes adding a second portion of the catalyst and a second monomer, such as butadiene (when the first monomer is styrene). A portion of the resulting living diblock polymer is then terminated by addition of a chain transfer agent, which forms a second anionic catalyst in the process. Further sequential additions of the second and first monomers copolymerize with both the remaining living diblock and with the second anionic catalyst to complete the triblock polymer and form a second portion of diblock polymer.Type: GrantFiled: January 9, 2001Date of Patent: March 19, 2002Assignee: Bridgestone/Firestone, Inc.Inventors: Mark H. Wollum, Daniel F. Graves
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Patent number: 6346571Abstract: A thermoplastic composition which may be unvulcanized or vulcanized is provided which comprises a polymer blend of an elastomeric thermoplastic engineering resin and a halogen-containing copolymer of a C4 to C7 isomonoolefin and a para-alkylstyrene. A process for preparing a dynamically vulcanized composition is also provided.Type: GrantFiled: November 2, 1999Date of Patent: February 12, 2002Assignee: ExxonMobil Chemical Patents Inc.Inventors: Narayanaswami Raja Dharmarajan, Robert Chester Puydak, Hsien Chang Wang, Kenneth William Powers, Thomas Chen-Chi Yu, Donald Ross Hazelton
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Patent number: 6313222Abstract: A miscible polymer blend of superior mechanical strength, hardness and abrasion or mar resistance comprising PVDF and at least one compatible aromatic polyimide. The aromatic polyimide in the miscible polymer blend acts as a nucleating agent for PVDF crystallization. The miscible polymer blend comprising PVDF and aromatic polyimide does not exhibit the negative characteristic of reduced mechanical strength encountered in PVDF and polymer alloys known in the art. The PVDF/aromatic polyimide alloy is prepared by dissolving, separately, PVDF and the aromatic polyimide in a solvent and blending the solutions to form the required composition.Type: GrantFiled: October 1, 1999Date of Patent: November 6, 2001Assignee: Ausimont USA, Inc.Inventors: Shiow-Ching Lin, Michael Coates, Eli M Pearce, Ping-Tsung Huang
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Publication number: 20010029284Abstract: In 100 parts by weight of a composition, from 2 to 89 parts by weight of a fluorinated polymer having a fluorine content of at least 65 wt %, from 97 to 10 parts by weight of a non-fluorinated polymer and from 1 to 35 parts by weight of a dispersing agent having a carboxylic acid group or its derivative, or a sulfonic acid group or its derivative, are blended.Type: ApplicationFiled: May 16, 2001Publication date: October 11, 2001Applicant: ASAHI GLASS COMPANY, LTD.Inventors: Masako Nagashima, Takeshi Eriguchi, Yuriko Kaida, Hiroki Kamiya, Masao Umino, Masataka Yokota
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Patent number: 6214923Abstract: A polyimide-based composite according to the invention is formed using a precursor comprising (A) a polyimide component and (B) another polymer component, wherein the polyimide forms a continuous phase and the other polymer forms a discontinuous phase, and the elastic modulus is less than 10 GPa. This structure provides both the properties of insulation, etc. contributed by the polyimide and the properties of low elastic modulus and satisfactory adhesion, moldability, etc. contributed by the other polymer. The polyimlde-based aqueous dispersion of the invention has dispersed therein particles with a mean particle size of 0.03-5 &mgr;m comprising the precursor of the polyimide-based composite, the dispersed particles including in the same particles the (A) polyimide component and (B) other polymer component comprising a hydrophilic polymer. This gives satisfactory storage stability to the aqueous dispersion.Type: GrantFiled: July 16, 1999Date of Patent: April 10, 2001Assignee: JSR CorporationInventors: Hirofumi Goto, Takako Yamada, Nobuyuki Ito
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Patent number: 6166136Abstract: A resin composition utilizing coated resin moldings, the resin composition comprising 100 parts by weight of a crushed material of coated polyolefin resin moldings compounded with from 3 to 15 parts by weight of an ethylene polymer having a weight average molecular weight of from 50,000 to 180,000.Type: GrantFiled: July 21, 1998Date of Patent: December 26, 2000Assignees: Japan Polyolefins Co., Ltd., Honda Giken Kogyo Kabushiki KaishaInventors: Hirofumi Murakami, Kazuhiko Sakai, Akihiro Katagiri, Yoshio Kitawaki, Takashi Nakayama, Kazuo Ito, Atushi Takeuchi, Minoru Makuta, Hitoshi Ohgane, Kenji Hamabe, Osamu Aoki
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Patent number: 6096817Abstract: The invention relates to a polymeric blend having a major amount of an elastomeric material and a minor amount of at least one particulate polyimide. Additionally, the polymeric blend may further contain lubricants.Type: GrantFiled: June 26, 1997Date of Patent: August 1, 2000Assignee: E. I. du Pont de Nemours and CompanyInventor: James Francis Mc Namara
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Patent number: 6040384Abstract: This invention relates generally to cable assemblies, and more particularly to flexible cable assemblies of the type used in automobiles for transmitting rotary or linear motion along a predetermined path. In a particular aspect, the present invention relates to abrasion-resistant fluorocarbon polymer composites, such as polytetrafluoroethylene ("PTFE") composites, having an unexpectedly high frictional efficiency under high load conditions and after long cycle times. The present invention relates to abrasion-resistant, anti-friction tubing formed from such composites, and to uses of such tubing as a liner for flexible, motion transmitting cable assemblies.Type: GrantFiled: April 17, 1997Date of Patent: March 21, 2000Assignee: Markel CorporationInventors: Kim A. Reynolds, Charles P. Marino, Kevin P. Kray
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Patent number: 6034207Abstract: A hexafluoropropene oxide polymer of formula (1) having a dispersity Mw/mn of up to 1.10 is useful as a raw material for liquid rubber. In formula (1), R is --COF, --I, --Br, --CH.sub.2 OH, --CH.sub.2 OCH.sub.2 CH.dbd.CH.sub.2, --COOR.sup.1 or --CONR.sup.2 R.sup.3 wherein R.sup.1, R.sup.2 and R.sup.3 are independently hydrogen or monovalent C.sub.1-20 hydrocarbon groups which may contain N, O, Si or S, or R.sup.2 and R.sup.3 form a ring with the N atom, Rf is a C.sub.1-6 perfluoroalkylene group or a C.sub.2-10 perfluorooxyalkylene group, and x+y=30 to 400.Type: GrantFiled: April 1, 1999Date of Patent: March 7, 2000Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Noriyuki Koike, Takashi Matsuda, Shinichi Sato
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Patent number: 6027772Abstract: An optical alignment composition, an alignment layer formed using the same with an excellent liquid crystal alignment property, and an LCD having the alignment layer are provided. The optical alignment composition having excellent thermal stability and alignment property and an alignment layer can be obtained while adopting a non-destructive optical alignment method. Accordingly, an LCD with improved performance can be obtained.Type: GrantFiled: December 29, 1997Date of Patent: February 22, 2000Assignee: Samsung Display Devices Co., Ltd.Inventor: Kwan-young Han
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Patent number: 6025439Abstract: Molecular dispersions of rigid-rod polybenzobisazole polymer/copolymer in thermoplastic matrices in a weight ratio of about 1:99 to 50:50 are prepared by dissolving the rigid-rod polymer in an alcoholic or aprotic solvent, dissolving the thermoplastic polymer in an alcoholic or aprotic solvent, combining the two solutions and recovering the resulting molecular composite from the combined solution. These molecular dispersions consist essentially of rigid-rod polybenzobisazole polymer/copolymer having sulfonic acid groups pendant to the polymer/copolymer backbone and thermoplastic polymers selected from the group consisting of polyvinylpyridines, poly(arylene ether ketone)s with a pyridyl functionality, aromatic poly(pyridine ether)s and poly(pyridine ether sulfone) copolymers, and polyimides with a pyridyl functionality.Type: GrantFiled: July 30, 1998Date of Patent: February 15, 2000Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: Fred E. Arnold, Narayanan Venkatasubramanian, Thuy D. Dang, Derrick R. Dean
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Patent number: 6013719Abstract: Low melt viscosity polytetrafluorethylene (PTFE), i.e. having a melt viscosity of 50 to 1.times.10.sup.5 Pa.multidot.s at 372.degree. C., is combined with non-fluorinated thermally stable polymer such as polyarleneetherketone to provide melt-fabricability application for the low MV PTFE and provide improved properties for the thermally stable polymer.Type: GrantFiled: June 15, 1998Date of Patent: January 11, 2000Assignee: E. I. du Pont de Nemours and CompanyInventor: Jacob Lahijani
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Patent number: 6013727Abstract: A thermoplastic composition which may be unvulcanized or vulcanized is provided which comprises a polymer blend of an elastomeric thermoplastic engineering resin and a halogen-containing copolymer of a C.sub.4 to C.sub.7 isomonoolefin and a para-alkylstyrene. A process for preparing a dynamically vulcanized composition is also provided.Type: GrantFiled: January 31, 1991Date of Patent: January 11, 2000Assignee: Exxon Chemical Patents, Inc.Inventors: Narayanaswami Raja Dharmarajan, Robert Chester Puydak, Hsien Chang Wang, Kenneth William Powers, Thomas Chen-Chi Yu, Donald Ross Hazelton
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Patent number: 5972807Abstract: A film forming, photosensitive, heat-resistant resin composition including a varnish of a polyimide precursor having no photosensitivity in itself, a polymeriziable monomer or oligomer compatible with the varnish and capable of providing a high-heat-resistant polymer upon being polymerized, and a polymerization initiator for the monomer or oligomer. The resin composition is useful for the production of circuit substrates and semiconductor devices for high-density mounting, since it can effectively avoid a reduction of the layer thickness during film formation, and ensures a low cost production process. The pattern formation process using such a resin composition is also disclosed. The polymeric composite having a particles-in-matrix microstructure and the production process thereof are also disclosed.Type: GrantFiled: December 23, 1996Date of Patent: October 26, 1999Assignee: Fujitsu LimitedInventors: Motaki Tani, Eiji Horikoshi, Isao Watanabe, Shoichi Miyahara, Takashi Ito, Makoto Sasaki
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Patent number: 5959022Abstract: A compatible blend of superior mechanical strength, hardness and abrasion or mar resistance comprising PVDF and a compatible organic polymer containing one or more imide groups. The alloy consisting of PVDF and a polymer containing imide groups is prepared by dissolving, separately, the PVDF and polymer in a solvent and blending the solutions to provide the required composition. The alloy can also be prepared by dispersing PVDF powder in a solution of polymer containing imide groups. After heating and drying, a homogeneous alloy is formed. In addition, melt extrusion of PVDF with the imide-containing polymer also generates the desired PVDF alloy.Type: GrantFiled: April 1, 1998Date of Patent: September 28, 1999Assignee: Ausimont USA, Inc.Inventors: Shiow-Ching Lin, Steven John Burks
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Patent number: 5919837Abstract: Wet processed friction materials are disclosed wherein the components thereof include blends of a) fibrillated, organic, synthetic polymer, b) organic, synthetic polymer staple and c) organic, synthetic soluble polymer particles.Type: GrantFiled: June 17, 1997Date of Patent: July 6, 1999Assignee: Sterling Chemicals International, Inc.Inventors: Stanley Sigmund Kaminski, Robert Ellsworth Evans
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Patent number: 5898049Abstract: The use of dispersions of urea group-containing polyurethanes based on selected starting materials and crosslinkers leads to the production of fully biodegradable shaped bodies.Type: GrantFiled: October 30, 1997Date of Patent: April 27, 1999Assignee: Bayer AktiengesellschaftInventors: Hanns-Peter Muller, Harro Traubel, Rainhard Koch
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Patent number: 5889082Abstract: A method for producing wet processed friction materials are disclosed wherein the components thereof include blends of a) fibrillated, organic, synthetic polymer, b) organic, synthetic polymer staple and c) organic, synthetic soluble polymer particles.Type: GrantFiled: June 17, 1997Date of Patent: March 30, 1999Assignee: Sterling Chemicals International, Inc.Inventors: Stanley Sigmund Kaminski, Robert Ellsworth Evans
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Patent number: 5889080Abstract: A method for making a dry blend for use in the preparation of a friction material, a dry blend per se and dry friction materials is disclosed wherein the components thereof include a) fibrillated, organic, synthetic polymer, b) organic, synthetic polymer staple and c) organic, synthetic soluble polymer particles.Type: GrantFiled: June 13, 1997Date of Patent: March 30, 1999Assignee: Sterling Chemicals International, Inc.Inventors: Stanley Sigmund Kaminski, Robert Ellsworth Evans
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Patent number: 5883186Abstract: Thermoplastic molding materials containA) from 4 to 95% by weight of a semicrystalline, partly aromatic copolyamide composed ofa.sub.1) from 30 to 44 mol % of units which are derived from terephthalic acid,a.sub.2) from 6 to 20 mol % of units which are derived from isophthalic acid,a.sub.3) from 43 to 49.5 mol % of units which are derived from hexamethylenediamine anda.sub.4) from 0.5 to 7 mol % of units which are derived from aliphatic cyclic diamines of 6 to 30 carbon atoms,the molar percentages of components a.sub.1) to a.sub.4) together giving 100%, andB) from 4 to 95% by weight of a polyolefin homo- or copolymer or a mixture thereof,C) from 1 to 20% by weight of a compatibilizer,D) from 0 to 20% by weight of an elastomeric polymer,E) from 0 to 50% by weight of a fibrous or particulate filler andF) from 0 to 30% by weight of conventional additives and processing assistants,the percentages by weight of components A to F together giving 100%.Type: GrantFiled: June 23, 1997Date of Patent: March 16, 1999Assignee: BASF AktiengesellschaftInventors: Axel Gottschalk, Herbert Fisch, Gunter Pipper, Martin Weber
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Patent number: 5840793Abstract: Disclosed are thermoplastic resin compositions having improved heat resistance, e.g., IR soldering and HDT; increased ductility and flowability; and reduced flash. In particular, the thermoplastic resin compositions have at least one high heat amorphous resin, at least one polysulfide; and, optionally, at least one reinforcing filler and/or at least one polyolefin and/or at least one polyolefin compound and/or at least one polyepoxy compound. The high heat amorphous resin is preferably a polyetherimide and the polyolefin is preferably a high crystalline polyethylene. The compositions of the invention are particularly well suited for preparing no flash high heat electrical connectors.Type: GrantFiled: August 9, 1994Date of Patent: November 24, 1998Assignee: General Electric CompanyInventors: Raymond H. Glaser, Darryl Nazareth, Jerry Jan-nan Yang
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Patent number: 5807929Abstract: At least bis-imido 1,3,5-triazines and processes of preparing the same are disclosed. Also disclosed are prepolymers having at least bis-imido functionality and curable compositions comprising at least bis-imido 1,3,5-triazines or prepolymers thereof in combination with active hydrogen and/or epoxy functional materials. The at least bis-imido 1,3,5-triazines and prepolymers may be advantageously employed as crosslinking agents which crosslink by a ring opening reaction that eliminates the release of volatile organic compounds.Type: GrantFiled: February 28, 1997Date of Patent: September 15, 1998Assignee: Cytec Technology Corp.Inventors: Lon-Tang Wilson Lin, Robert G. Lees, William F. Jacobs, III, Subban Ramesh
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Patent number: 5770654Abstract: A composition which is a uniform blend of 50-90 weight % of a polyamide melt-processable within the temperature range of 180.degree.-210.degree. C. and 50-10 weight % of recovered plasticized polyvinylbutyral, optionally also containing a small amount of an elastomeric ethylene copolymer carrying pendant succinic anhydride groups, has high impact strength and good flexural modulus. The polyamide in these compositions forms the matrix, and the plasticized polyvinylbutyral and any elastomer present form the dispersed phase. Such compositions have good barrier properties and are useful, among others, in applications where good toughness is required, for example, in packaging subjected to rough handling.Type: GrantFiled: March 20, 1997Date of Patent: June 23, 1998Assignee: E. I. du Pont de Nemours and CompanyInventor: Philip Strubing Blatz
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Patent number: 5700863Abstract: New polyimide polymeric blends which are environmentally friendly during compounding and give improved coefficient of friction in shaped articles prepared therefrom are provided by blending polyimides which are at least 90% imidized and substantially solvent free and have a mean particle size of about 30 .mu.m or less with at least one melt processible thermoplastic liquid crystalline polymer or polyamide and a lubricant.Type: GrantFiled: August 19, 1996Date of Patent: December 23, 1997Assignee: E. I. Du Pont de Nemours and CompanyInventor: Joy Sawyer Bloom
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Patent number: 5670225Abstract: A uniaxially stretched multilayered film obtained by uniaxially stretching a laminated film at a stretch ratio of from 3 to 10 to form many closed fine voids in each layer, said laminated film comprising a base layer (A) made of a resin composition comprising resinous ingredients comprising from 50 to 90% by weight crystalline polyolefin (a) and from 50 to 10% by weight thermoplastic resin (b) having a lower melting point than the crystalline polyolefin (a) and an inorganic fine powder (c) in an amount of from 0 to 35% by weight based on the sum of the weight of the resinous ingredients and, formed on at least one side of said base layer (A), a surface layer (B) made of a resin composition comprising from 20 to 80% by weight inorganic fine powder (d) and from 80 to 20% by weight crystalline polyolefin (e), said uniaxially stretching being conducted at a temperature lower than the melting point of said crystalline polyolefin (a) and lower than the melting point of said crystalline polyolefin (e) but at a tempeType: GrantFiled: November 21, 1995Date of Patent: September 23, 1997Assignee: Oji-Yuka Synthetic Paper Co., Ltd.Inventors: Masaaki Yamanaka, Masaki Shiina
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Patent number: 5670010Abstract: A process for adhering a fluororesin film to a metal surface, using a primer comprising fluororesin, aluminum flake and more polyether sulfone than polyamideimides.Type: GrantFiled: July 28, 1995Date of Patent: September 23, 1997Assignee: E. I. Du Pont de Nemours and CompanyInventors: Minori Hagiwara, Kenji Kiwa, Tatsuya Ogita, Luc Germain Pierre Joseph D'Haenens
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Patent number: 5654367Abstract: An alternating copolymer comprising a repeating unit of the formula:--Z--(X--Y).sub.n -- (I)wherein n is at least 2, X is O, S, Se or Te, and Y and Z are independently an aromatic or substituted aromatic group, and at least one other repeating unit, which is useful as a photosensitive material used in a spatial light modulator.Type: GrantFiled: May 26, 1995Date of Patent: August 5, 1997Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akio Takimoto, Hirofumi Wakemoto, Eiichiro Tanaka, Masanori Watanabe, Junko Asayama, Hisahito Ogawa, Shigehiro Sato, Fumiko Yokotani
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Patent number: 5502098Abstract: A polymer composition for electrical part material comprising, (I) a polymer blend which comprises (A) at least one polymer selected from specific types of polyether imides and polyesters, and (B) at least one polymer selected from specific types of polyphenylene ethers, polyolefins, and polycarbonates, and (II) a copolymer of maleic anhydride and vinyl type compound or (II') an epoxy-modified styrene-type copolymer. The composition has excellent compatibility, heat resistance, mechanical characteristics, platability, moldability, and electric characteristics. It is an ideal material for use as an electrical part material due to its low dielectric constant and low dielectric dissipation factor at high frequency.Type: GrantFiled: June 27, 1994Date of Patent: March 26, 1996Assignees: Cosmo Research Institute, Cosmo Oil Co., Ltd.Inventors: Fumie Watanabe, Takashi Mizoguchi, Masatoshi Iwafune
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Patent number: 5502102Abstract: A thermoplastic resin composition is provided which contains polyetherimide resin, poly(arylene sulfide) resin, an epoxy compound and, optionally, glass fibers. The composition exhibits enhanced physical properties, specifically enhanced ductility and flash resistance. The composition is useful for making molded articles exhibiting desired physical properties.Type: GrantFiled: August 9, 1994Date of Patent: March 26, 1996Assignee: General Electric CompanyInventor: Darryl Nazareth
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Patent number: 5496944Abstract: A process for preparing a tris-lactam crosslinking agent, tris-pyrrolidonyl triazine, from N,N',N"-tris(4-chlorobutyryl)melamine by treatment of the chlorobutyryl derivative with a base such as sodium or potassium carbonate to effect intramolecular cyclization to the tris-lactam. A curable composition comprises tris-pyrrolidonyl triazine as the crosslinking agent and a hydroxyfunctional or aminofunctinoal material as a resin. Thick films with no pinholes are prepared from the curable compositions using powder coating techniques.Type: GrantFiled: June 6, 1995Date of Patent: March 5, 1996Assignee: Cytec Technology Corp.Inventors: R. B. Gupta, Robert G. Lees
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Patent number: 5430102Abstract: Disclosed are thermoplastic resin compositions having improved heat resistance, e.g., IR soldering and HDT; increased ductility and flowability; and reduced flash. In particular, the thermoplastic resin compositions have at least one high heat amorphous resin, at least one polysulfide; and, optionally, at least one reinforcing filler and/or at least one polyolefin. The high heat amorphous resin is preferably a polyetherimide and the polyolefin is preferably a high crystalline polyethylene. The compositions of the invention are particularly well suited for preparing no flash high heat electrical connectors.Type: GrantFiled: March 8, 1993Date of Patent: July 4, 1995Assignee: General ElectricInventors: Raymond H. Glaser, Darryl Nazareth, Jerry J. Yang
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Patent number: 5395870Abstract: There are disclosed a vinyl resin composition which comprises a resin composition comprising a vinyl polymer, a polyamideimide elastomer obtained by reacting a mixture of caprolactam, an aromatic polycarboxylic acid and a specified polyoxyethylene glycol, with 0-0.5 mole of a diamine, etc., per 1 mole of glycol contained in said mixture, the glycol component being present in a proportion of 85-30% by weight in said elastomer and the relative viscosity of the elastomer being at least 1.5 (at 30.degree. C.), and an electrolyte added as desired, and articles molded from the composition.Type: GrantFiled: October 25, 1993Date of Patent: March 7, 1995Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Yoshio Suzuki, Masashi Sakamoto
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Patent number: 5360564Abstract: An engine oil formulation comprising of a pour point depressant, a dispersant inhibitor package containing a reduced amount of ashless dispersant, a synthetic or mineral based oil or mixtures thereof, and a modified hydrogenated star polymer of a conjugated diolefin and a modified hydrogenated copolymer of conjugated diolefins and monoalkenyl arenes is disclosed. The engine oil has and exhibits improved dispersancy and rheological properties which is attributable to the presence therein of the modified hydrogenated star polymer of a conjugated diolefin and a modified hydrogenated copolymer of conjugated diolefins and monoalkenyl arenes. A process of producing the inventive engine oil composition is also disclosed.Type: GrantFiled: July 30, 1993Date of Patent: November 1, 1994Assignee: Shell Oil CompanyInventors: Robert J. Sutherland, Robert B. Rhodes
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Patent number: 5360872Abstract: A method for improving the miscibility of vinyl halide polymer based resins with one or more essentially immiscible polymer resins is disclosed. This method comprises adding a polyimide polymer to a mixture containing the vinyl halide resin and the immiscible polymer. Articles made from these compositions are useful for medical applications.Type: GrantFiled: October 22, 1993Date of Patent: November 1, 1994Assignee: The Geon CompanyInventor: Murali Rajagopalan
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Patent number: 5350796Abstract: A composition for improving the wet strength of cellulosic fibrous webs is comprised of an aminopolyamide-epichlorohydrin acid salt resin having an E/N ratio of from about 0.6 to about 2.0 and from about 1% to about 35% of a water soluble cationic polymer based on the weight of the resin. The composition has a total organic chlorine content of from about 0.5% to 1.0% by weight based on the weight of the aminopolyamide-epichlorohydrin acid salt resin.Type: GrantFiled: October 25, 1993Date of Patent: September 27, 1994Assignee: Henkel CorporationInventors: David I. Devore, Nancy Clungeon, Stephen A. Fischer
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Patent number: 5344620Abstract: Water-soluble crosslinkable compounds obtainable by reaction of reactive products which contain halogenohydrin groups and have been obtained by reacting polyamines and epihalogenohydrin or 1,3-dihalogeno-2-hydroxy-propane with inorganic bases and subsequently reacting the resulting products with inorganic acids and/or organic acids, can be used as pigment binders and/or crosslinking agents in textile printing pastes.Type: GrantFiled: January 16, 1992Date of Patent: September 6, 1994Assignee: Bayer AktiengesellschaftInventors: Jurgen Reiners, Herbert Wigger, Fritz Puchner
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Patent number: 5278214Abstract: The present invention discloses a polyolefin resin composition comprising a specific cycloolefin-based polymer (a), a graft-modified elastomer (b) and a compound (c) having one amino group in the molecule, and containing, based on the total amount of the components (a), (b) and (c), 50 to 95% by weight of the component (a), 1 to 50% by weight of the component (b) and 0.01 to 45% by weight of the component (c). This polyolefin resin composition is improved particularly in mechanical properties such as impact strength, etc., while retaining excellent properties of the cycloolefin-based polymer (a).Type: GrantFiled: January 29, 1992Date of Patent: January 11, 1994Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Satoru Moriya, Akio Ishimoto, Mamoru Takahashi
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Patent number: 5272206Abstract: Vulcanized blends of poly(etherimide ester) copolymer or poly(ether-ester-amide) block copolymer with epoxy functionalized EPDM rubber are provided having enhanced elastic recovery %. Vulcanization of compatibilized blends of the poly(etherimide ester) copolymers or poly(ether-ester-amide) block copolymers with epoxy functionalized EPDM rubber can be effected with crosslinking agents, such as, organic diamines.Type: GrantFiled: April 17, 1991Date of Patent: December 21, 1993Assignee: General Electric CompanyInventors: Andra J. Moffett, Marijn E. J. Dekkers