From Dicarboxylic Acid Or Derivative And At Least One Polyol; Or From A Diester Of A Polycarboxylic Acid As Sole Reactant Patents (Class 524/601)
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Patent number: 5131827Abstract: This invention relates to a resin composition for scroll compressor parts which comprises(A) about 40 to 70 parts by weight of at least one thermoplastic resin selected from the group consisting of polyphenylene sulfide, polyetheretherketone, polyetherketone, all-aromatic polyester, nylon-4,6, nylon-MXD6, polysulfone, polyarylsulfone, polyethersulfone, polyetherimide, polyamide-imide and polyimide,(B) about 15 to 45 parts by weight of whisker with an average fiber diameter of not more than about 3 .mu.m and a tensile modulus of not less than about 10,000 kgf/mm.sup.2 ;(C) about 10 to 25 parts by weight of heat-resistant fiber with an average fiber diameter of not more than about 30 .mu.m and a tensile modulus of not less than about 6,500 kgf/mm.sup.2 ; and(D) about 5 to 20 parts by weight of a finely divided solid lubricant, the sum total of components (A) to (D) being 100 parts by weight and a method of manufacturing scroll compressor parts characterized in that the above composition is injection molded.Type: GrantFiled: October 31, 1990Date of Patent: July 21, 1992Assignee: Otsuka Kagaku Kabushiki KaishaInventor: Takio Tasaka
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Patent number: 5115080Abstract: This invention relates to thermotropic liquid crystalline polyester compositions containing recurring units derived from 2-methylhydroquinone, terephthalic acid, 2,6-napthalenecarboxylic acid, and hydroquinone, characterized as having a heat distortion temperature of greater than 200.degree. C. and improved elongation. The inclusion of a reinforcing/filling agent selected from the group consisting of glass reinforcing agents, glass fillers, carbon metasilicate, calcium carbonate, talc, titanium dioxide, and calcined aluminum silicate in said compositions, and also in those same compositions lacking recurring units of hydroquinone, results in an improvement in the elongation of said compositions. The inclusion of carbon fiber into these compositions results in no significant decrease in the elongation of said compositions. The compositions are useful as films, fibers, and shaped articles.Type: GrantFiled: October 24, 1990Date of Patent: May 19, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventors: Marion G. Waggoner, Michael R. Samuels
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Patent number: 5110862Abstract: Cross-linked aqueous dispersions and emulsions and method for producing casts of any desirable shape therefrom the dispersions comprising a water dissipatable polymer in an amount from 18 to 30 percent by weight based on the total weight of the composition; water in an amount from 67 to 30 percent by weight based on the total weight of the composition; a source of multivalent metallic ions in an amount of 0.1 to 5 percent by weight based on the total weight of the composition; and humectant in an amount from 0.1 to 40 percent by weight based on the total weight of the composition and the emulsions comprising a water dissipatable polymer in an amount from 18 to 30 percent by weight based on the total weight of the composition; water in an amount from 67 to 80 percent by weight based on the total weight of the composition; emollient oils in an amount from 0.1 to 25 percent by weight based on the total weight of the composition; a source of multivalent metallic ions in an amount from 0.Type: GrantFiled: February 5, 1991Date of Patent: May 5, 1992Assignee: Imaginative Research Associates, Inc.Inventors: Mohan Vishnupad, Jose Ramirez
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Patent number: 5110861Abstract: A sealing resin composition is provided with is useful in the encapsulation of an electronic component and comprises a melt-processable polyester having a weight-average molecular weight of 1000 to 3900 and is capable of forming an optically anisotropic molten phase, and at most 80 percent by weight based upon the total weight of the composition of an inorganic powder which has been surface-treated with an epoxysilane or mercaptosilane coupling agent.Type: GrantFiled: July 28, 1989Date of Patent: May 5, 1992Assignee: Polyplastics Co., Ltd.Inventors: Masato Togami, Toshio Kanoe
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Patent number: 5110896Abstract: This invention relates to thermotropic liquid crystalline polyester compositions containing recurring units derived from hydroquinone, 4-4'-dihydroxybiphenyl, terephthalic acid, 2,6-naphthalenedicarboxylic acid, and 4-hydroxybenzoic acid which are characterized as having melting points less than 365.degree. C., breaking elongations greater than or equal to 1.5%, and heat distortion temperatures greater than 200.degree. C.This invention further relates to the same compositions containing 20 to 40 weight percent of at least one glass reinforcing/filling agent and which are characterized as having melting points less than 365.degree. C., breaking elongations greater than or equal to 2.0%, and heat distortion temperatures greater than 230.degree. C.The compositions are useful as films, fibers, and shaped or molded articles.Type: GrantFiled: December 10, 1990Date of Patent: May 5, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventors: Marion G. Waggoner, Michael R. Samuels
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Patent number: 5109059Abstract: Stable spray-coatable, water base composition having about 2 percent solids, that dries into speckled films having a plurality of different colored surfaces resistant to flaking, comprising: a blend of a surfactant free first solution comprising, butyl methacrylate, butyl acrylate, 2-ethylhexyl acrylate, glacial methacrylic acid and styrene; a blend of a self-crosslinking second solution comprising, 2-ethylhexyl acrylate, butyl methacrylate, glacial methacrylic acid, styrene and at least one cross-linking polymer; a thickener gel; different colored dried latex paint chips, and ammonia.Type: GrantFiled: April 4, 1990Date of Patent: April 28, 1992Inventor: Larry C. Fischer
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Patent number: 5096960Abstract: Water-borne alkyd resin compositions are disclosed comprising maleinized fatty acid. Substitution of the aromatic triacid component of the composition with the maleinized fatty acid permits a reduction in the amount of organic cosolvent employed to solubilize the resin in the water.Type: GrantFiled: July 16, 1990Date of Patent: March 17, 1992Assignee: Westvaco CorporationInventor: David E. Knox
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Patent number: 5097001Abstract: A high modulus, high strength melt processable copolyester consisting essentially of recurring units (I), (II), (III) and (IV): ##STR1## wherein said copolyester has a melting point in the range of from about 340.degree. C. to 400.degree. C., a crystallization temperature of from about 300.degree. C.-340.degree. C., and a crystallization rate of at least 1,000 counts/minute.Type: GrantFiled: September 26, 1989Date of Patent: March 17, 1992Inventors: Richard Layton, James W. Cleary, Paul J. Huspeni, Paul D. Frayer
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Patent number: 5096959Abstract: Base alkyd resins are modified to provided increased hydrolytic stability by reacting them with a polybasic acid composition containing one or more cycloaliphatic polybasic acids, the resulting modified alkyd having an acid number in the range of 25-100 and having pendent carboxy-functional monoester groups derived from the cycloaliphatic polybasic acids.Type: GrantFiled: October 30, 1990Date of Patent: March 17, 1992Assignee: The Valspar CorporationInventors: Lonnie S. Jones, Donald W. Boespflug, Philip J. Ruhoff
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Patent number: 5089594Abstract: Aromatic polyesters based on isophthalic acid, terephthalic acid, p-hydroxybenzoic acid, hydroquinone and an arylene diol are described. The five monomers ae used in well-specified proportions and yield polymers that display an excellent overall combination of mechanical and thermal properties. The subject copolyesters have melting points of at least about 260.degree. C.; their heat distortion temperatures are at least about 200.degree. C. they have fiber ratings of up to 3. The novel polymers can be melt-fabricated using standard injection molding, extrusion and melt-spinning techniques.Type: GrantFiled: June 4, 1990Date of Patent: February 18, 1992Assignee: Amoco CorporationInventors: Brian A. Stern, Markus Matzner, Richard Layton
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Patent number: 5079289Abstract: This invention pertains to novel copolyesters consisting essentially of units (I), (II), (III), and (V). ##STR1## and blends of these polymers and articles made from both. Units (I), (II), (III), and (IV) are present in specified proportions as defined in the "Description of the Invention". The instant copolyesters display orientation in the molten state, good fiber ratings and high strength; they have melting points in the range of from about 340.degree. to about 400.degree. C. and are melt-processible. Advantageously, these compositions filled with about 30 weight percent of glass fibers display heat distortion temperatures of over 240.degree. C. up to about 280.degree. C. and higher, when measured under a load of 264 psi. When blended, certain properties are improved, particularly they are easier to melt fabricate, have a decreased tendency to blister and increased strength.Type: GrantFiled: June 4, 1990Date of Patent: January 7, 1992Assignee: Amoco CorporationInventors: Richard Layton, James W. Cleary, Paul J. Huspeni, Paul D. Frayer, Markus Matzner
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Patent number: 5049643Abstract: A wholly aromatic polyester is composed of naphthalene dicarboxylic acid units comprising 5 to 95 mole % of the unit having the formula (1) and 95 to 5 mole % of the unit having the formula (2) and aromatic diol units having the formula (3). It is improved in heat resistance and may be blended with a filler.Type: GrantFiled: March 13, 1990Date of Patent: September 17, 1991Assignee: Polyplastics Co., Ltd.Inventors: Yukihiko Kageyama, Toshio Nakane, Kenji Hijikata
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Patent number: 5037220Abstract: Films from aromatic polyesters and from aromatic polyestercarbonates are excellently suitable for preparing printing ribbons, in particular for thermal and electrothermal recording processes.Type: GrantFiled: July 13, 1988Date of Patent: August 6, 1991Assignee: Bayer AktiengesellschaftInventors: Volker Serini, Bernhard Schulte, Claus Burkhardt, Dieter Freitag, Uwe Hucks, Werner Waldenrath, Hans-Leo Weber
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Patent number: 5025065Abstract: Fire-retardant polycarbonates, polyester carbonates and polyesters based on dihydroxydiphenyl cycloalkanes ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent hydrogen, halogen, preferably chlorine or bromine, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl, preferably phenyl and C.sub.7 -C.sub.12 aralkyl, preferably phenyl-C.sub.1 -C.sub.4 -alkyl, more especially benzyl,m is an integer of 4 to 7, preferably 4 or 5, R.sup.3 and R.sup.4 may be individually selected for each X and, independently of one another, represent hydrogen or C.sub.1 -C.sub.6 alkyl andX is carbon,with the proviso that, at at least one atom X, R.sup.3 and R.sup.4 are both alkyl,the fire-retardant finish being provided by additives and/or comonomers.Type: GrantFiled: April 4, 1990Date of Patent: June 18, 1991Assignee: Bayer AktiengesellschaftInventors: Peter Tacke, Ulrich Grigo, Werner Nouvertne, Dieter Freitag, Karsten-Josef Idel, Uwe Westeppe
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Patent number: 5013819Abstract: Liquid-crystalline, thermotropic, aromatic polyesters processable in the molten state, comprising units derived from hydroquinone mono- and possibly di-substituted with aralkyl groups.Type: GrantFiled: November 2, 1989Date of Patent: May 7, 1991Assignee: Montedison S.P.A.Inventors: Alfredo Coassolo, Marco Foa', L. Lawrence Chapoy
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Patent number: 5010132Abstract: A water-base paint for coating the inside surface of a metallic can, said paint comprising fine particles of a polyester resin dispersed in an aqueous medium in the presence of a surface-active agent, wherein(A) the polyester resin comprises units derived from a dicarboxylic acid and units derived from a diol, the units derived from the dicarboxylic acid containing units derived from terephthalic acid and units derived from isophthalic acid in a mole ratio of from 10:90 to 80:20, and at least 30 mole % of the units derived from the diol being derived from ethylene glycol,(B) the surface-active agent is composed of at least one compound selected from alkylaryl sulfonic acid salts, alkylsulfonic acid salts, dialkylsulfosuccinic acid salts, alkylphosphoric acid salts, polyoxyethylene alkylarylether sulfonic acid salts and polyoxyethylene alkylether sulfonic acid salts, and(C) the fine particles of the polyester resin have an average particle diameter of not more than 3 microns.Type: GrantFiled: October 24, 1989Date of Patent: April 23, 1991Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Akio Morinaga, Takeo Kigami
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Patent number: 5006598Abstract: Disclosed are water-dispersible polyesters which impart improved water resistance and block resistance properties to printing inks. Typical polyesters contain about 90 to 97 mole % isophthalic acid, about 3 to about 10 mole % 5-sodiosulfoisophthalic acid, about 70 to about 85 mole % 1,4-cyclohexanedimethanol, and about 15 to about 30 mole % diethylene glycol, based on the total of all acid and hydroxy moiety repeating units being equal to 200 mole %.Type: GrantFiled: April 24, 1990Date of Patent: April 9, 1991Assignee: Eastman Kodak CompanyInventors: Linda J. Adams, George J. O'Neill
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Patent number: 4992508Abstract: Cross-linked aqueous dispersions and emulsions and method for producing casts of any desirable shape therefrom the dispersions comprising a water dissipatable polymer in an amount from 18 to 30 percent by weight based on the total weight of the composition; water in an amount from 67 to 30 percent by weight based on the total weight of the composition; a source of multivalent metallic ions in an amount of 0.1 to 5 percent by weight based on the total weight of the composition; and humectant in an amount from 0.1 to 40 percent by weight based on the total weight of the composition and the emulsions comprising a water dissipatable polymer in an amount from 18 to 30 percent by weight based on the total weight of the composition; water in an amount from 67 to 80 percent by weight based on the total weight of the comosition; emollient oils in an amount from 0.1 to 25 percent by weight based on the total weight of the composition; a source of multivalent metallic ions in an amount from 0.Type: GrantFiled: June 16, 1989Date of Patent: February 12, 1991Assignee: Imaginative Research Associates, Inc.Inventors: Mohan Vishnupad, Jose Ramirez
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Termotropic liquid-crystalline aromatic polyester from hydroquinone/substituted hydroquinone mixture
Patent number: 4985533Abstract: Thermotropic liquid-crystalline aromatic polyesters processable in the molten state, comprising units derived from at least one dicarboxylic aromatic acid and from mono- and di-substituted (1-phenyl-ethyl)-hydroquinones in admixture with hydroquinone, and/or hydroquinones substituted with halogen or alky, aryl or cycloalkyl groups.Type: GrantFiled: May 30, 1989Date of Patent: January 15, 1991Assignee: Montedison S.p.A.Inventors: Alfredo Coassolo, L. Lawrence Chapoy, Marco Foa, Giampiero Sabarino -
Patent number: 4983713Abstract: A novel polyester resin is provided which exhibits an anisotropic melt phase. The polymer comprises recurring 4-oxybenzoyl units, 6-oxy-2-naphthoyl units, aromatic dicarboxy units, and aromatic diol units as described in appropriate concentrations. The resulting polyester exhibits excellent melt processability in combination with good mechanical properties and a good retention of properties at elevated temperatures.Type: GrantFiled: July 3, 1989Date of Patent: January 8, 1991Assignee: Polyplastics Co., Ltd.Inventors: Noriyuki Hayashi, Yukihiko Kageyama, Kenji Hijikata
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Patent number: 4981904Abstract: Stable spray-coatable, water base composition having about 2 percent solids, that dries into glittering film having plurality of reflective surfaces resistant to flaking, comprising: a blend of a surfactant free first solution comprising, butyl methacrylate, butyl acrylate, 2-ethylhexyl acrylate, glacial methacrylic acid and styrene; a blend of a self-crosslinking second solution comprising, 2-ethylhexyl acrylate, butyl methacrylate, glacial methacrylic acid, styrene and at least one cross-linking polymer; a thickener gel; transparent polyethylene terephthalate chips on which a color imparting or reflective material has been vacuum deposited and cured fast by an epoxy resin and ammonia.Type: GrantFiled: June 9, 1989Date of Patent: January 1, 1991Inventor: Larry C. Fischer
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Patent number: 4977191Abstract: A water-soluble or water-dispersible polyester resin composition, suitable for textile sizing applications, comprises a reaction product of 20-50% by weight of waste terephthalate polymer, 10-40% by weight of at least one glycol and 5-25% by weight of at least one oxyalkylated polyol. Preferred compositions also comprise 20-50% by weight of isophthalic acid. A further water-soluble or water-dispersible resin comprises a reaction product of 20-50% by weight of waste terephthalate polymer, 10-50% by weight of at least one glycol and 20-50% by weight of isophthalic acid.Type: GrantFiled: June 27, 1989Date of Patent: December 11, 1990Assignee: The Seydel Companies, Inc.Inventor: Robert K. Salsman
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Patent number: 4959406Abstract: Plastic containing small amounts of titanium dioxide and, if appropriate, carbon black and an additive which reduces the tracking resistance, for the production of laser-writable mouldings.Type: GrantFiled: February 6, 1989Date of Patent: September 25, 1990Assignee: Bayer AktiengesellschaftInventors: Eckard Foltin, Hans-Werner Depcik, Karl Huff, Alfred Pischtschan, Mehmet C. Yesildag, Reiner Erkelenz
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Patent number: 4952663Abstract: This invention relates to the preparation of wholly aromatic polyesters from monomers having a total ash content of no more than 50 ppm and a total potassium content of no more than 20 ppm. These polyesters have good color and good thermal stability and are essentially free of char material which can lead to unacceptable molded and extruded articles.Type: GrantFiled: June 17, 1988Date of Patent: August 28, 1990Assignee: Amoco CorporationInventors: James W. Cleary, Richard Layton
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Patent number: 4937310Abstract: A polyester resin comprises 35 to 90 mole percent of the unit (I), 0.5 to 20 mole percent of the unit (II), 0.5 to 45 mole percent of the unit (III) and 0.5 to 45 mole percent of the unit (IV), exhibiting the anisotropy in its molten state. It may further comprise 0.5 to 45 mole percent of the unit (V). The composition is here presented, comprising the polyester resin as defined above and up to 95 percent by weight of an inorganic filler.Type: GrantFiled: April 10, 1989Date of Patent: June 26, 1990Assignee: Polyplastics Co., Ltd.Inventors: Noriyuki Hayashi, Kenji Hijikata
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Patent number: 4920197Abstract: A polyester is provided which exhibits an anisotropic melt phase and an advantageous combination of (1) melt processability and (2) excellent heat resistance in articles formed from the same. The polyester consists essentially of p-oxybenzoyl units, 6-oxy-2-naphthoyl units, terephthaloyl units, and metadioxyphenylene units in appropriate concentrations (as described. The aromatic rings of such units optionally may be substituted as discussed.Type: GrantFiled: April 10, 1989Date of Patent: April 24, 1990Assignee: Polyplastics Co., Ltd.Inventors: Noriyuki Hayashi, Kenji Hijikata
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Patent number: 4918154Abstract: A polyester resin comprises 35 to 90 mole percent of the unit (I), 0.5 to 20 mole percent of the unit (II), 0.5 to 45 mole percent of the unit (III), 0.5 to 45 mole percent of the unit (IV), and 0.5 to 45 mole percent of the unit (V), exhibiting the anisotropy in its molten state. A polyester composition comprises the polyester resin as defined above and up to 95 percent by weight of an inorganic filler.Type: GrantFiled: April 10, 1989Date of Patent: April 17, 1990Assignee: Polyplastics Co., Ltd.Inventors: Noriyuki Hayashi, Kenji Hijikata
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Patent number: 4912193Abstract: Thermotropic, fully aromatic polyesters based on p-hydroxybenzoic acid, 4,4'-dihydroxydiphenyl, terephthalic acid and isophthalic acid have exceptionally high dimensional stability under heat. The thermotropic aromatic polyesters are used for the production of moulded articles, filaments, fibres and films.Type: GrantFiled: October 19, 1988Date of Patent: March 27, 1990Assignee: Bayer AktiengesellschaftInventors: Hans-Rudolf Dicke, Volker Eckhardt, Ludwig Bottenbruch
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Patent number: 4900804Abstract: An aromatic polyester consisting of 40-70 mol % of unit I derived from p-hydroxybenzoic acid, 1-8 mol % of unit II derived from m-hydroxybenzoic acid or isophthalic acid, 6-36 mol % of units III and IV derived from terephthalic acid and 2,6-naphthalene dicarboxylic acid, respectively, and 10-40 mol % of unit V derived from a symmetrical dihydroxy compound can be melt molded at a temperature of up to 330.degree. C. into an article having improved mechanical and thermal properties. An aromatic polyesteramide consisting of components I to V and unit VI having an anilino group is also provided. A filled composition is obtained by blending the polyester or polyesteramide with an inorganic filler. A magnetic resin composition is obtained by blending the polyester or polyesteramide with a magnetic powder.Type: GrantFiled: April 10, 1989Date of Patent: February 13, 1990Assignee: Kawasaki Steel CorporationInventors: Tadahiro Wakui, Kenji Yoshino, Masafumi Komatsu, Yumiko Kumazawa, Touru Yamagishi, Mitsuhiko Izumi
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Patent number: 4871830Abstract: An aromatic ester carbonate resin comprised of:(i) at least one recurring structural unit represented by the formula ##STR1## (ii) at least one recurring structural unit selected from structural units represented by the formulae ##STR2## or mixtures thereof; and (iii) at least one recurring structural unit represented by the formula ##STR3## (iv) at least one recurring structural unit selected from structural units represented by the formulae ##STR4## or mixtures thereof; wherein R is independently selected from halogen, monovalent hydrocarbon radicals, or monovalent hydrocarbonoxy radicals,W is selected from divalent hydrocarbon radicals, ##STR5## A is the divalent residue of at least one polymerized conjugated alkadiene and has a weight average molecular weight of at least about 600,m is independently selected from integers having a value of from 0 to 4, andb is either zero or one, andwherein B is the divalent residue of an ester precursor.Type: GrantFiled: September 8, 1987Date of Patent: October 3, 1989Inventors: Victor Mark, deceased, by Carol M. Mark, representative, by Ester H. Mark, representative, Edward N. Peters
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Patent number: 4870124Abstract: Thermoplastic molding composition comprising an organic polyester or poly(phenylene oxide) or poly(phenylene sulfide) or poly(etherimide) polysulfone and a hydrogenated oligomer of an alpha-olefin in an amount effective to impart reliable and facile mold release.Type: GrantFiled: March 3, 1989Date of Patent: September 26, 1989Assignee: General Electric CompanyInventor: Linda H. Nelson
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Patent number: 4866155Abstract: Polyesters of 4,4'bis[2-(4-hydroxyphenyl)hexafluoroisopropyl]diphenyl ether having high transparency, high solvent solubility and excellent melt processability are prepared. They possess high thermal and radiation stability and are useful in the preparation of protective films, protective paints, films, fibers, diffusion membranes and shaped articles where high service temperature and radiation resistance are desired.Type: GrantFiled: November 24, 1987Date of Patent: September 12, 1989Assignee: Hoechst Celanese CorporationInventors: Werner H. Mueller, Dinesh N. Khanna
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Patent number: 4851497Abstract: An aromatic polyester consisting of 40-70 mol % of unit I derived from p-hydroxybenzoic acid, 1-8 mol % of unit II derived from m-hydroxybenzoic acid or isophthalic acid, 6-36 mol % of units III and IV derived from terephthalic acid and 2,6-naphthalene dicarboxylic acid, respectively, and 10-40 mol % of unit V derived from a symmetrical dihydroxy compound can be melt molded at a temperature of up to 330.degree. C. into an article having improved mechanical and thermal properties. An aromatic polyesteramide consisting of components I to V and unit VI having an anilino group is also provided. A filled composition is obtained by blending the polyester or polyesteramide with an inorganic filler. A magnetic resin composition is obtained by blending the polyester or polyesteramide with a magnetic powder.Type: GrantFiled: December 17, 1987Date of Patent: July 25, 1989Assignee: Kawasaki Steel CorporationInventors: Tadahiro Wakui, Kenji Yoshino, Masafumi Komatsu, Yumiko Kumazawa, Touru Yamagishi, Mitsuhiko Izumi
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Patent number: 4791168Abstract: This invention, therefore, relates to the field of polyurethane coatings for use in automobile basecoat/clearcoat systems. In particular, this invention relates to the discovery that incorporating a long-chain carboxylic acid of at least 50% by weight of the carboxylic acid component used to make polyester resins which are further incorporated into polyurethane resins provides basecoat composition exhibiting low temperature flash characteristics. These low temperature flash characteristics are exhibited even where the basecoat is deposited at 50-90% relative humidity.Type: GrantFiled: April 15, 1987Date of Patent: December 13, 1988Assignee: BASF Corporation, Inmont DivisionInventors: Timothy Salatin, Thomas C. Balch, Michael C. Knight, Michael D. Shesterkin, John S. Van Antwerp, Paul E. Lamberty, Robert A. Aamodt
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Patent number: 4789706Abstract: A polyester composition having an average molecular weight of greater than 450 comprising a most prevalent compound having a main polyester chain containing at least 17 and fewer than 52 carbon atoms and at least 6 and fewer than 18 oxygen atoms, at least 40 weight percent of the molecules of said composition having a molecular weight within 50% of the average molecular weight of the composition. Often less than 36 weight percent of the molecules of the composition having a molecular weight greater than 150 percent of the average molecular weight and less than 12 weight percent of the molecules of the composition having a molecular weight less than 50 percent of the average molecular weight of the composition. The polyester composition desirably contains at least 1.6 equivalents of unreacted hydroxy groups or at least 1.6 equivalents of unreacted carboxy groups per mole. The composition contains at least four equivalents of ester links in the main chains of the molecules per mole.Type: GrantFiled: March 23, 1988Date of Patent: December 6, 1988Assignee: NL Chemicals, Inc.Inventor: Roy C. Williams
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Patent number: 4778835Abstract: A process and apparatus for preparing a homogeneous dissipation of a viscous, liquid-dissipatable polymer. The process comprises continuously feeding molten polymer into a first inlet of a mixing chamber, feeding a stream of a relatively low viscosity dissipating liquid into a second inlet of said mixing chamber at an angle, at a velocity and at a flow rate relative to the structure of said chamber such that shearing action is created at the advancing end of the polymer to continuously erode the end of the polymer, and further mixing the polymer and dissipating liquid downstream from an outlet of the chamber to form a homogeneous dissipation of polymer in dissipating liquid.Type: GrantFiled: December 12, 1986Date of Patent: October 18, 1988Assignee: Eastman Kodak CompanyInventors: Chester N. Sittel, Mark A. Pollock
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Patent number: 4777204Abstract: A resin composition is suitable for molding to a gear and comprises 30 to 98 percent by weight of a resin being capable of the anisotropic phase in the molten state and the melt processing and 2 to 70 percent by weight of fibers such as metal fibers, carbon fibers, glass fibers, inorganic fibers, synthetic fibers and mineral fibers.Type: GrantFiled: June 22, 1987Date of Patent: October 11, 1988Assignee: Polyplastics Co., Ltd.Inventors: Yukio Ikenaga, Katsuhiko Takahashi, Kenji Hijikata, Toshio Kanoe, Tsuneyoshi Okada
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Patent number: 4777199Abstract: A coating composition comprising(A) a film-forming polymer having functional group(s) capable of reacting with the crosslinking agent (D) hereinafter referred to and cationic or anionic functional group(s),(B) a volatile organic liquid diluent in which the polymer (A) is dissolved,(C) crosslinked polymer microparticles bearing anionic or cationic functional group(s) whose electric charge is opposite to that of the film-forming polymer, which are insoluble in the combination of the film-forming polymer (A) and the diluent (B) and are maintained in a stabilized state of dispersion therein, and(D) a crosslinking agent dissolved in the diluent (B).Type: GrantFiled: December 22, 1986Date of Patent: October 11, 1988Assignee: Nippon Paint Co., Ltd.Inventors: Keizou Ishii, Akio Kashihara
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Patent number: 4772422Abstract: An electrically conductive resin composition comprises (1) a polymer of the thermotropic liquid crystals being capable of the anisotropic property in the molten state and (2) an electrically conductive carbon black. It is improved in the impact strength and can contain a large amount of carbon black.Type: GrantFiled: November 21, 1986Date of Patent: September 20, 1988Assignee: Polyplastics Co., Ltd.Inventors: Kenji Hijikata, Toshio Kanoe
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Patent number: 4743655Abstract: A polyester composition having an average molecular weight of greater than 450 comprising a most prevalent compound having a main polyester chain containing at least 17 and fewer than 52 carbon atoms and at least 6 and fewer than 18 oxygen atoms, at least 40 weight percent of the molecules of said composition having a molecular weight within 50% of the average molecular weight of the composition. The polyester composition desirably contains at least 1.6 equivalents of unreacted hydroxy groups or at least 1.6 equivalents of unreacted carboxy groups per mole. The composition contains at least four equivalents of ester links in the main chains of the molecules per mole.The composition of the present invention is obtained by the method of the invention wherein alternating series of reactions are each driven essentially to completion where the final molecule of each reaction provides the only available reaction site for the next alternate monomer reaction.Type: GrantFiled: April 20, 1987Date of Patent: May 10, 1988Assignee: NL Chemicals, Inc.Inventor: Roy C. Williams
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Patent number: 4740583Abstract: Cyclic polycarbonate (or thiol analog) oligomer mixtures are prepared by the reaction of bishaloformates or their thio analogs, or mixtures thereof with dihydroxy or dimercapto compounds, with alkali metal hydroxides and various amines. The oligomer mixtures may be converted to polycarbonates or their thiol analogs by a method which is particularly adaptable to integration with polycarbonate processing operations. Polymerization may be conducted simultaneously with molding, extrusion and the like. The oligomer mixtures are adaptable to the preparation of filled prepregs.Type: GrantFiled: July 24, 1986Date of Patent: April 26, 1988Assignee: General Electric CompanyInventors: Daniel J. Brunelle, Thomas L. Evans, Michael A. Vallance, Kevin R. Stewart, Thomas G. Shannon, David A. Williams, Dwight J. Patterson, Niles R. Rosenquist, William Hilakos
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Patent number: 4731262Abstract: Painting of an article formed of a synthetic resin, e.g. an automobile bumper formed of polyurethane resin, is accomplished by simplified operations and at reduced cost by using a paint of a desired color containing 5-40 wt % of an aprotic polar solvent, preferbly N-methyl-2-pyrrolidone. The paint is applied directly to a cleaned surface of the plastic article, followed by usual drying and baking. Application of a usual primer is omitted since the paint containing an adequate amount of aprotic polar solvent is excellent in adhesion to plastic surfaces. The obtained paint film is comparable to an ordinary top coat paint film formed on a primer layer in appearance, whether resistance and chemical resistance. When a two-toned paint coat is wished, another paint not containing any aprotic polar solvent is applied onto a selected area of the initially formed paint film, followed by drying and baking.Type: GrantFiled: June 2, 1986Date of Patent: March 15, 1988Assignee: Nissan Motor Co., Ltd.Inventors: Masashi Ohno, Takashi Toyama, Kiminori Ishii
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Patent number: 4677188Abstract: There is disclosed a transparent slippery biaxially stretched polyester film characterized by satisfying the relations represented by the following formulas after being biaxially stretched and heat-set:0.155.ltoreq..DELTA.P.ltoreq.0.165 (1)1.605.ltoreq.n.ltoreq.1.610 (2).DELTA.n.ltoreq.0.02 (3)7.0.ltoreq.X.sub.I .ltoreq.11.0 (4)0.55.ltoreq.[.eta.].sub.F .ltoreq.0.65 (5) ##EQU1##.DELTA.H.ltoreq.0.5 (7)wherein .DELTA.P, n, .DELTA.n, X.sub.I, [.eta.].sub.F and .DELTA.H ar respectively degree of planar orientation, average refractive index, birefringence, % ratio of the peak value of the (110) face measured by X-ray diffractometry to the peak value of the (100) face, intrinsic viscosity and surface haze of the biaxially stretched film.Type: GrantFiled: June 4, 1986Date of Patent: June 30, 1987Assignee: DiaFoil Company, LimitedInventors: Shigeo Utsumi, Kichinojyo Tomitaka, Yujiro Fukuda
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Patent number: 4672004Abstract: Noncrystallizable single-component organopolysiloxane compositions which are storage-stable in the absence of water, curable into elastomers at ambient temperatures and above in the presence of water, and which are well adopted for the production of silicone coatings and seals, include:(A) at least one .alpha.,.omega.-dihydroxydiorganopolysiloxane polymer;(B) a methyltriacetoxysilane cross-linking agent therefor; and(C) an effective amount of at least one additive for preventing the crystallization of said cross-linking agent (B), miscible therewith in all proportions and liquid at ambient temperature, said additive comprising:(i) a diester of ortho-phthalic acid with a monoalcohol of the formula GOH, wherein G is a hydrocarbon radical containing from 4 to 12 carbon atoms; or(ii) an ester of acetic acid with a monoalcohol of the formula G'OH, wherein G' is hydrocabon radical containing from 6 to 18 carbon atoms.Type: GrantFiled: March 31, 1986Date of Patent: June 9, 1987Assignee: Rhone-Poulenc Specialites ChimiquesInventors: Francois Chizat, Bernard Chaussabel
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Patent number: 4668716Abstract: A novel class of fatty ethenoid acylaminorganosilicon compounds are provided which are useful as coupling agents for fiber glass reinforced resin composites.Type: GrantFiled: December 5, 1985Date of Patent: May 26, 1987Assignee: Union Carbide CorporationInventors: Enrico J. Pepe, James G. Marsden
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Patent number: 4661567Abstract: Carbonate polymers containing at least one terminal group represented by the general formula ##STR1## wherein R and R.sup.1 are independently selected from hydrogen and monovalent hydrocarbon radicals.Type: GrantFiled: September 14, 1984Date of Patent: April 28, 1987Inventors: John A. Tyrell, Gary L. Freimiller
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Patent number: 4659778Abstract: A polyester composition having an average molecular weight of greater than 500 comprising a most prevalent compound having a main polyester chain containing at least 17 and fewer than 52 carbon atoms and at least 6 and fewer than 18 oxygen atoms, at least 52 weight percent of the molecules of said composition having a molecular weight within 50% of the average molecular weight of the composition. The polyester composition desirably contains at least 1.6 equivalents of unreacted hydroxy groups or at least 1.6 equivalents of unreacted carboxy groups per mole. The composition contains at least four equivalents of ester links in the main chains of the molecules per mole.The composition of the present invention is obtained by the method of the invention wherein alternating series of reactions are each driven essentially to completion where the final molecule of each reaction provides the only available reaction site for the next alternate monomer reaction.Type: GrantFiled: April 21, 1986Date of Patent: April 21, 1987Assignee: NL Chemicals, Inc.Inventor: Roy C. Williams
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Patent number: 4622382Abstract: An unsaturated polyester, preferably having a stellate molecular structure, with a polyol center and monohydric alcohol connected to the polyol hydroxy moieties through a di- or tri- carboxylic acid link, as well as a process for its synthesis, and use of the compounds in air-drying lacquer binders.Type: GrantFiled: July 9, 1985Date of Patent: November 11, 1986Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Herbert Fischer, Bernd Wegemund, Manfred Gorzinski, Wolfgang Gress
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Patent number: 4616054Abstract: The invention describes a composition and method for the reduction of volatile organic emissions from polyester compositions having a hydroxyl value of at least 150 using water and an organic solvent.Type: GrantFiled: December 18, 1984Date of Patent: October 7, 1986Assignee: Cargill IncorporatedInventor: Morris R. Olson
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Patent number: 4616062Abstract: A cure stable polyester emulsion for use in an aqueous size composition has been developed for glass fibers produced for molded products having appearance surfaces known as Class A surfaces. The size contains a cure stable polyester emulsion and a static insensitive lubricant system. The resulting coated glass fibers are especially useful in improving processability and product uniformity of SMC applications.Type: GrantFiled: October 21, 1985Date of Patent: October 7, 1986Assignee: Owens-Corning Fiberglas CorporationInventors: Robert C. Brannon, David A. Coleman, David G. Miller