Ethylenically Unsaturated Reactant Patents (Class 528/345)
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Patent number: 5510426Abstract: Higher molecular weight copolymers of polyaspartic acid which are suitable for the inhibition of scale deposition may be obtained by reacting maleic acid and ammonia in a stoichiometric excess, with a diamine or a triamine, at 120.degree.-350.degree. C., preferably 180.degree.-300.degree. C., and then converting the copolymer of polysuccinimide formed to a salt of a copolymer of polyaspartic acid by hydrolysis with a hydroxide.Type: GrantFiled: May 17, 1995Date of Patent: April 23, 1996Assignee: SRCHEM, Inc.Inventor: Louis L. Wood
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Patent number: 5510427Abstract: Higher molecular weight copolymers of polyaspartic acid which are suitable for the inhibition of scale deposition may be obtained by reacting maleic acid and ammonia in a stoichiometric excess, with a diamine or a triamine, at 120.degree.-350.degree. C., preferably 180.degree.-300.degree. C., and then converting the copolymer of polysuccinimide formed to a salt of a copolymer of polyaspartic acid by hydrolysis with a hydroxide.Type: GrantFiled: May 17, 1995Date of Patent: April 23, 1996Assignee: SRCHEM, Inc.Inventor: Louis L. Wood
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Patent number: 5504182Abstract: Thermoplastically processable aromatic polyether amideThermoplastically processable aromatic polyether amide of the formula (I) ##STR1## in which the symbols Ar, Ar', Ar.sub.1, Ar.sub.2, R, R', Y, x, y and z have the following meanings:Ar is a divalent, substituted or unsubstituted, aromatic or heteroaromatic radical or a group--Ar*--Q--Ar*--in whichQ is a bond or an --O--, --C(CH.sub.3).sub.2, --CO--, --S--, --SO-- or --SO.sub.2 -- bridge and Ar* is an aromatic radical. The carbonyl groups of the Ar radical are on non-adjacent ring carbon atoms.A is up to three different radicals.Ar' has the meaning given for Ar or is an Ar--Z--Ar group.In this case, Z is a --C(CH.sub.3).sub.2 -- or --O--Ar*--O--bridge.Y is a --C(CH.sub.3).sub.2 --, --SO.sub.2 --, --S-- or a --C(CF.sub.3).sub.2 --bridge and has up to two different meanings in the same polymer.Ar.sub.1 and Ar.sub.2 are identical or different from one another and are each a substituted or unsubstituted para- or meta-arylene radical.Type: GrantFiled: April 30, 1993Date of Patent: April 2, 1996Assignee: Hoechst AktiengesellschaftInventors: Harald Cherdron, Willi Kreuder, Arnold Schneller, Otto Herrmann-Schonherr
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Patent number: 5502117Abstract: Higher molecular weight copolymers of polyaspartic acid which are suitable for the inhibition of scale deposition may be obtained by reacting maleic acid and ammonia in a stoichiometric excess, with a diamine or a triamine, at 120.degree.-350.degree. C., preferably 180.degree.-300.degree. C., and then converting the copolymer of polysuccinimide formed to a salt of a copolymer of polyaspartic acid by hydrolysis with a hydroxide.Type: GrantFiled: May 17, 1995Date of Patent: March 26, 1996Assignee: Srchem, Inc.Inventor: Louis L. Wood
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Patent number: 5496915Abstract: Polyimides are obtainable by reacting a dianhydride component with a diamine component, at least one diamine containing cycloaliphatic units, with the proviso that the dianhydride component is a mixture of different dianhydrides if the diamine component consists only of one diamine containing cycloaliphatic units and the diamine component is a mixture of different diamines if the dianhydride component consists of only one dianhydride.Type: GrantFiled: February 13, 1995Date of Patent: March 5, 1996Assignee: BASF AktiengesellschaftInventors: Christian Fischer, Karin Elbl-Weiser, Ju/ rgen Koch
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Patent number: 5496914Abstract: Polymers of maleic, fumaric or malic acids or maleic, fumaric or malic acid and ammonia with amino acids are prepared by heating at 180.degree.-350.degree. C., preferably 200.degree.-300.degree. C. The polymer formed may be converted to a salt by hydrolysis with a metal hydroxide or ammonium hydroxide.Type: GrantFiled: January 18, 1995Date of Patent: March 5, 1996Assignee: SRCHEM, Inc.Inventors: Louis L. Wood, Gary J. Calton
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Patent number: 5491213Abstract: Polysuccinimide is prepared by reacting an unsaturated C.sub.2 dicarboxylic acid or anhydride thereof, e.g., maleic acid, fumaric acid, and maleic anhydride, with a particulate ammonium salt that is thermally decomposable to liberate ammonia. The reaction is carried out at a temperature which is above the thermal decomposition temperature of the ammonium salt and for a time period which is sufficient for the acid or anhydride to react with the ammonia liberated from the ammonium salt and for polymerization to occur. The present method avoids the prior art problems of controlling ammonia losses and water removal. The product polysuccinimide can be readily hydrolyzed to polyaspartic acid or a salt thereof, if desired.Type: GrantFiled: January 28, 1994Date of Patent: February 13, 1996Assignee: Donlar CorporationInventor: Daniel A. Batzel
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Patent number: 5478919Abstract: Aspartic acid precursors such as mono and diammonium maleate, maleamic acid, ammonium maleamate, ammonium malate and mixtures of these and other precursors are copolycondensed thermally with a variety of mono, di and multifunctional monomers containing amino, hydroxyl and carboxyl functional groups. The resulting condensation copolymers and terpolymers contain succinimide units derived from aspartic acid precursors, condensed with other functional group monomers usually though amide and ester linkages. Hydrolysis of the polysuccinimide copolymers and terpolymers with alkali, alkaline earth and ammonium hydroxide produces aspartic acid copolymer and terpolymer salts.Type: GrantFiled: July 29, 1994Date of Patent: December 26, 1995Assignee: Donlar CorporationInventors: Larry P. Koskan, James F. Kneller, Daniel A. Batzel
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Patent number: 5472823Abstract: A photosensitive resin composition comprising, as its main ingredient, a poly(amic acid) resin constituted of a diamino compound represented by formula: ##STR1## and optionally used other diamino compound and a tetracarboxylic acid dianhydride as its constituent monomers and/or a poly(amic acid) ester resin obtained by esterifying said poly(amic acid) resin and/or a polyimide resin obtained by a dehydrating or alcohol-eliminating ring-closure reaction of said poly(amic acid) resin or poly(amic acid) ester resin has an excellent developability and a high film strength and can form a relief patter of low thermal expansion.Type: GrantFiled: January 15, 1993Date of Patent: December 5, 1995Assignee: Hitachi Chemical Co., Ltd.Inventors: Hideo Hagiwara, Makoto Kaji, Hiroshi Nishizawa, Kenji Suzuki, Yasunori Kojima
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Patent number: 5470942Abstract: There is disclosed a process for preparing polyaspartic acid by thermal condensation of L-aspartic acid in a novel catalyst which shortens the reaction time and increases the molecular weight of the polymer. The novel catalyst is a catalytically effective methylenephosphonic acid. Typical catalysts are 1-hydroxyethylidene-1,1-diphosphonic acid and aminotris(methylenephosphonic acid). The methylenephosphonic acid is blended with the amino acid in a molar ratio of amino acid to catalyst in the range of from about 1:1 to 40:1.Type: GrantFiled: February 16, 1995Date of Patent: November 28, 1995Assignee: Monsanto CompanyInventors: Gregory C. Alexander, Mark E. Jason, Dennis J. Kalota
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Patent number: 5466760Abstract: Higher molecular weight copolymers of polyaspartic acid which are suitable for the inhibition of scale deposition may be obtained by reacting maleic acid and ammonia in a stoichiometric excess, with a diamine or a triamine, at 120.degree.-350.degree. C., preferably 180.degree.-300.degree. C., and then converting the copolymer of polysuccinimide formed to a salt of a copolymer of polyaspartic acid by hydrolysis with a hydroxide.Type: GrantFiled: January 17, 1995Date of Patent: November 14, 1995Assignee: Srchem, Inc.Inventor: Louis L. Wood
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Patent number: 5461138Abstract: A method for forming a homogeneous, concentrated, prepolymer composition, and a method of using the concentrated prepolymer composition to uniformly coat fibers is described. The prepolymer mixture is formed by dissolving a dialkyl, trialkyl, or tetraalkylester of biphenyltetracarboxylic acid in a solvent comprising ethyl acetate and methanol in a molar ratio of from about 1:3 to about 1:60, to form an ester solution. Diamine and end cap compound are added to the ester solution to form a monomer mixture solution. The end cap compound is a divalent compound characterized by (i) at least one unsaturated moiety, (ii) capable of reacting with the diamine or the ester to form an end cap radical that precludes further reaction of the diamine with the ester, and (iii) capable of undergoing addition polymerization. A portion of the solvent is evaporated from the monomer solution to form the substantially homogeneous, concentrated, prepolymer composition.Type: GrantFiled: March 6, 1995Date of Patent: October 24, 1995Assignee: TRW Inc.Inventors: Tito T. Serafini, Paul G. Cheng, Ward F. Wright
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Patent number: 5461137Abstract: A method for forming a homogeneous, concentrated, prepolymer composition, and a method of using the concentrated prepolymer composition to uniformly coat fibers is described. The prepolymer mixture is formed by dissolving a dialkyl, trialkyl, or tetraalkylester of biphenyltetracarboxylic acid in a solvent comprising ethyl acetate and methanol in a molar ratio of from about 1:3 to about 1:60, to form an ester solution. Diamine and end cap compound are added to the ester solution to form a monomer mixture solution. The end cap compound is a divalent compound characterized by (i) at least one unsaturated moiety, (ii) capable of reacting with the diamine or the ester to form an end cap radical that precludes further reaction of the diamine with the ester, and (iii) capable of undergoing addition polymerization. A portion of the solvent is evaporated from the monomer solution to form the substantially homogeneous, concentrated, prepolymer composition.Type: GrantFiled: March 6, 1995Date of Patent: October 24, 1995Assignee: TRW Inc.Inventors: Tito T. Serafini, Paul G. Cheng, Ward F. Wright
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Patent number: 5426172Abstract: Mixtures of salts of organic carboxylic acids and organic compounds of non-salt character, dissolved in a C.sub.1 -C.sub.4 alkanol, can be concentrated or separated with a semipermeable membrane made from a copolyamide or copolyimide-amide which contains (a) a first aromatic diamine radical and (b) a second aromatic diamine radical which carries --SO.sub.3 M groups, where M is H.sup..sym., a monovalent to polyvalent metal cation or an ammonium cation. Provided the first diamine radical contains C.sub.1 -C.sub.4 alkyl groups in the o-positions to the amino groups, the copolymers are radiation-sensitive and can be used for producing protective layers or relief images, development being carded out in an aqueous alkaline medium.Type: GrantFiled: February 28, 1994Date of Patent: June 20, 1995Assignee: Ciba-Geigy CorporationInventors: Joseph Berger, Wolfgang Wernet
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Patent number: 5424391Abstract: A method for producing polysuccinimide is provided. Thermal polymerization of fumaramic acid at a temperature of from about 160.degree. C. to about 330.degree. C. produces polysuccinimide. The reaction is optionally conducted in the presence of one or more processing aids, solvents or diluents. The polysuccinimide is particularly useful as a detergent additive.Type: GrantFiled: July 20, 1993Date of Patent: June 13, 1995Assignee: Rohm and Haas CompanyInventors: Yi H. Paik, Graham Swift, Ethan S. Simon, Michael B. Freeman
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Patent number: 5420229Abstract: A flushing vehicle for lithographic inks is the reaction product of a tall oil rosin-modified maleic ester resin with an acid number of less than about 30, and about 2-16 wt. %, based on the weight of the ester, of a polyamide resin with an amine number less than about 110. The flushing vehicle is prepared by heating a reaction mixture containing the rosin-modified ester and the polyamide resin to a temperature of about 190.degree.-280.degree. C.; and holding at a temperature of 190.degree.-280.degree. C. until the viscosity of the reaction mixture becomes constant.Type: GrantFiled: November 16, 1993Date of Patent: May 30, 1995Assignee: Resinall CorporationInventors: Roger E. Burke, J. Gilbert Sprull
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Patent number: 5393868Abstract: A method for producing polysuccinimide is provided. Thermal polymerization of maleamic acid at a temperature of from about 160.degree. C. to about 330.degree. C. produces polysuccinimide. The reaction is optionally conducted in the presence of one or more processing aids, solvents or diluents. The polysuccinimide is particularly useful as a detergent additive.Type: GrantFiled: October 13, 1992Date of Patent: February 28, 1995Assignee: Rohm and Haas CompanyInventors: Michael B. Freeman, Yi H. Paik, Ethan S. Simon, Graham Swift
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Patent number: 5391642Abstract: Higher molecular weight copolymers of polyaspartic acid which are suitable for the inhibition of scale deposition may be obtained by reacting maleic acid and ammonia in a stoichiometric excess, with a diamine or a triamine, at 120.degree.-350.degree. C., preferably 180.degree.-300.degree. C., and then converting the copolymer of polysuccinimlde formed to a salt of a copolymer of polyaspartic acid by hydrolysis with a hydroxide.Type: GrantFiled: June 17, 1994Date of Patent: February 21, 1995Assignee: SRCHEM IncorporatedInventor: Louis L. Wood
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Patent number: 5373087Abstract: A process for preparing a polyaminopolymer which contains functionality comprises the steps of (a) contacting a polyfunctional amine with an unsaturated alkylating agent under reaction conditions to form an amine/unsaturated alkylating agent adduct; (b) contacting the adduct with a polyfunctional compound such that a polyaminopolymer is formed: (e) contacting the polyaminopolymer with a halogen, hypohalous acid or precursor thereof such that a polyaminopolymer having halohydrin or dihalo functionality is formed, and (d) raising the pH of the polyaminopolymer having halohydrin or vicinal dihalo functionality sufficiently to cause an increase in molecular weight. Alternatively, the invention is a process having steps (a), (b), (c) and optionally (d), but with a step (h) between steps (b) and (c) of contacting the polyaminopolymer with a crosslinking agent therefor having at least two functional groups reactive with amine groups such that a crosslinked polyaminopolymer is formed.Type: GrantFiled: November 8, 1993Date of Patent: December 13, 1994Assignee: The Dow Chemical CompanyInventors: Otha G. Weaver, Jr., Wanda G. Buckner, Terry W. Glass
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Patent number: 5357004Abstract: Higher molecular weight copolymers of polyaspartic acid which are suitable for the inhibition of scale deposition may be obtained by reacting maleic acid and ammonia in a stoichiometric excess, with a diamine or a triamine, at 120.degree.-350.degree. C., preferably 180.degree.-300.degree. C., and then converting the copolymer of polysuccinimide formed to a salt of a copolymer of polyaspartic acid by hydrolysis with a hydroxide. Alkyl or substituted alkyl groups may be incorporated in the backbone of the polymer by adding a alkyl or substituted alkyl monoamine to maleic acid and ammonia and heating at 120.degree. C. or more until polymerization has occurred.Type: GrantFiled: February 14, 1994Date of Patent: October 18, 1994Assignee: Srchem IncorporatedInventors: Gary J. Calton, Louis L. Wood
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Patent number: 5354829Abstract: A polymeric reaction product is disclosed that is a silylated polyamine-containing polymer having moieties from fatty acid moieties and/or chain extenders as difunctional organo moieties and free amine moieties and hydrolyzed and/or hydrolyzable organofunctional silane moieties and that is at least water dispersible. The reactants that produce this product are a polyamine-containing polymer with fatty acid moieties and free amine moieties and at least one amine-reactable organo functional alkoxysilane or its hydrolysis products. The former reactant results from the reaction of a polyamine-containing polymer with free amine moieties with fatty acids alone or in mixtures with other fatty acids and/or dimer acids. The polymeric reaction product is combined with a predominant amount of water to form a fiber treating formulation that can reside on the surface of one or more treated fibers.Type: GrantFiled: June 30, 1992Date of Patent: October 11, 1994Assignee: PPG Industries, Inc.Inventors: Robert G. Swisher, Richard P. Beaver, Robert G. Briody, Louis J. Nehmsmann
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Patent number: 5326850Abstract: Molding materials are composed ofA) from 40 to 100% by weight of a copolyamide based ona.sub.1) from 1 to 20 mol%, based on the copoly- amide, of at least one monomer that contains at least one olefinic double bond (monomers a.sub.1) from the group of the.alpha..sub.1) olefinically unsaturated lactams,.alpha..sub.2) olefinically unsaturated aminocarboxylic acids,.alpha..sub.3) olefinically unsaturated dicarboxylic acids,.alpha..sub.4) olefinically unsaturated diamines, anda2) from 80 to 99 mol%, based on the copolyamide, of at least one monomer that contains no olefinic double bonds (monomers a2) from the group of the.beta..sub.1) lactams.beta..sub.2) aminocarboxylic acids,.beta..sub.3) dicarboxylic acids,.beta..sub.4) diamines, andB) from 0 to 35% by weight of an impact modifying rubber,C) from 0 to 50% by weight of a filler and/or reinforcing agent,D) from 0 to 20% by weight of a flame retardant, andE) from 0 to 10% by weight of further additives and processing aids.Type: GrantFiled: March 3, 1993Date of Patent: July 5, 1994Assignee: BASF AktiengesellschaftInventors: Walter Goetz, Brigitte Gareiss, Andreas Deckers, Petra Baierweck
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Patent number: 5322916Abstract: A polyamide precursor of a polybenzazole polymer is prepared by reacting an aromatic bis(alkenyl)ester with a ring forming, aromatic diamine. The precursor can be prepared in an organic solvent for the monomers to form a soluble polyamide precursor which can be subsequently cyclocondensed to form a PBX polymer. A polybenzoxazole precursor is prepared by the reaction of a bis(alkenyl)ester and a bis(ortho-hydroxyamine). A polybenzazole polymer is easily prepared by heating the polyamide, PBX precursor.Type: GrantFiled: March 16, 1993Date of Patent: June 21, 1994Assignee: The Dow Chemical CompanyInventors: James J. O'Brien, Edmund P. Woo
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Patent number: 5322922Abstract: Mixtures of salts of organic carboxylic acids and organic compounds of non-salt character, dissolved in a C.sub.1 -C.sub.4 alkanol, can be concentrated or separated with a semipermeable membrane made from a copolyamide or copolyimide-amide which contains (a) a first aromatic diamine radical and (b) a second aromatic diamine radical which carries --SO.sub.3 M groups, where M is H.sup..sym., a monovalent to polyvalent metal cation or an ammonium cation. Provided the first diamine radical contains C.sub.1 -C.sub.4 alkyl groups in the o-positions to the amino groups, the copolymers are radiation-sensitive and can be used for producing protective layers or relief images, development being carried out in an aqueous alkaline medium.Type: GrantFiled: December 3, 1992Date of Patent: June 21, 1994Assignee: Ciba-Geigy CorporationInventors: Joseph Berger, Wolfgang Wernet
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Patent number: 5320886Abstract: This invention relates primarily to organofunctional monomers, predominantly dimethacrylates and/or diacrylates containing one or more (predominantly two carboxyl groups, with moieties that provide sufficient affinity with water to allow any desired amount of water and/or miscible fugitive solvents to be mixed homogeneously with these monomers and formulations containing them. The activity of water in the monomer formulations can be adjusted so that it is equal to the water activity in biological tissues. This promotes biocompatibility and enhances the adhesive characteristics of polymers prepared from these formulations. Probability statistics are disclosed that optimize the compositions of polymer reaction products.Type: GrantFiled: November 14, 1991Date of Patent: June 14, 1994Assignee: American Dental Association Health FoundationInventor: Rafael L. Bowen
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Patent number: 5292858Abstract: Copolymers of polyamino acids formed by reaction of an alcohol with maleic anhydride to form the half ester followed by addition of ammonia, ammonia and an amine, or ammonia and a polyamine. The mixture is then heated to 120.degree.-350.degree. C. to form polysuccinimide or a derivative thereof. The resulting polysuccinimide may be hydrolyzed to form a derivative of polyaspartic acid or its salt.Type: GrantFiled: March 16, 1993Date of Patent: March 8, 1994Assignee: SRCHEM IncorporatedInventor: Louis L. Wood
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Patent number: 5286810Abstract: Higher molecular weight copolymers of polyaspartic acid which are suitable for the inhibition of scale deposition may be obtained by reacting maleic acid and ammonia in a stoichiometric excess, with a diamine or a triamine, at 120.degree.-350.degree. C., preferably 180.degree.-300.degree. C., and then converting the copolymer of polysuccinimide formed to a salt of a copolymer of polyaspartic acid by hydrolysis with a hydroxide.Type: GrantFiled: April 7, 1993Date of Patent: February 15, 1994Assignee: SRCHEM IncorporatedInventor: Louis L. Wood
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Patent number: 5278255Abstract: The present invention is a process for preparing a polyaminopolymer which contains functionality comprising the steps of (a) contacting a polyfunctional amine with an unsaturated alkylating agent under reaction conditions to form an amine/unsaturated alkylating agent adduct; (b) contacting the adduct with a polyfunctional compound such that a polyaminopolymer is formed; (c) contacting the polyaminopolymer with a halogen, hypohalous acid or precursor thereof such that a polyaminopolymer having halohydrin or dihalo functionality is formed; and (d) raising the pH of the polyaminopolymer having halohydrin or vicinal dihalo functionality sufficiently to cause an increase in molecular weight. Alternatively, the invention is a process having steps (a), (b), (c) and optionally (d), but with a step (h) between steps (b) and (c) of contacting the polyaminopolymer with a crosslinking agent therefor having at least two functional groups reactive with amine groups such that a crosslinked polyaminopolymer is formed.Type: GrantFiled: August 11, 1992Date of Patent: January 11, 1994Assignee: The Dow Chemical CompanyInventors: Otha G. Weaver, Jr., Terry W. Glass, Wanda G. Buckner
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Patent number: 5274047Abstract: Semipermeable composite membrane, with a porous carrier substrate, whereby said carrier substrate is provided with a polymer network obtained by polycondensation, especially interfacial polymerization, which is built up of at least one reactive polyfunctional monomer or oligomer or prepolymer or polymer, and at least one acid halide containing polymer.The specialty of this semi-permeable composite membrane consists therein that the acid halide containing polymere itself is built up of one or more vinyl containing monomers.The acid halide containing polymer is generally a copolymer of acryloylchloride H.sub.2 C.dbd.CHCOCl or methacryloyl chloride H.sub.2 C.dbd.C(CH13)COCl with one or more vinyl containing monomers.Usually the vinyl containing monomer is an acrylate or an acrylamide or a mixture thereof.Type: GrantFiled: February 21, 1992Date of Patent: December 28, 1993Assignee: X-Flow B.V.Inventors: Dirk M. Koenhen, Aloysius H. A. Tinnemans
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Patent number: 5272247Abstract: The present invention provides a polyimide having all of small dielectric constant, small thermal expansion coefficient, high heat resistance, high glass transition temperature and high mechanical properties, a precursor of the polyimide, and processes for producing them. A polyimide precursor whose molecular chain comprises repeating units represented by the following general formula (1) and repeating units represented by the following general formula (2): ##STR1## wherein R.sup.1 is at least one kind of tetravalent organic group selected from the group consisting of ##STR2## R.sup.2 is at least one kind of divalent organic group having a linear structure which is selected from the group consisting of ##STR3## m is an integer of 1 to 4, and R.sup.3 is a divalent organic group having a non-linear structure which contains at least two aromatic rings.Type: GrantFiled: October 21, 1991Date of Patent: December 21, 1993Assignee: Hitachi, Ltd.Inventors: Hideo Sotokawa, Fusaji Shoji, Fumio Kataoka, Hidetaka Satou
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Patent number: 5268422Abstract: Functionalized poly(hydroxyalkanoate) derivatives having the general structural formula: ##STR1## wherein Y is hydrogen, a saccharide moiety or an alkenyl moiety having a molecular weight in the range of from about 25 to about 100,000; R.sub.1, R.sub.2 and R.sub.3 are, independently, hydrogen, an aromatic moiety, an alkyl moiety or an alkenyl moiety, said alkyl moiety or alkenyl moiety including from one to about nine carbon atoms; A is carbonyl or methylene; X is oxygen or imino (--NH); Z is selected from the group consisting of hydrogen, a saccharide moiety, an alkyl moiety and an alkenyl moiety having a molecular weight in the range of from about 25 to about 100,000, with the proviso that if Y is hydrogen, Z is not hydrogen; r.sub.1, r.sub.2 and r.sub.Type: GrantFiled: November 9, 1992Date of Patent: December 7, 1993Inventor: Manssur Yalpani
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Patent number: 5254669Abstract: The present invention relates to a process for the manufacture of a crosslinked polymer, wherein a crosslinking reaction is carried out between an organic crosslinking agent which is a polyacid or a derivative of a polyacid, and a long chain alkylpolyamine having at least two amine functional groups which may be primary and/or secondary and which is not a succinimide. The long chain alkylpolyamine can be obtained by a method comprising reacting a corresponding long chain alkylcarbonyl compound with an amine. The long chain carbonyl compound is for example prepared by ozonolysis of a polyolefin which can be a polybutene. The obtained crosslinked polymer can be used as an additive in lubricant compositions.Type: GrantFiled: August 25, 1992Date of Patent: October 19, 1993Assignee: BP Chemicals LimitedInventor: John R. Blackborow
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Patent number: 5243019Abstract: A fluorine-containing aromatic polyamide obtained by reacting an aromatic dicarboxylic acid having a perfluoroalkenyloxy group with a diamine is excellent in water repellency, water resistance, heat resistance, etc.Type: GrantFiled: March 25, 1991Date of Patent: September 7, 1993Assignee: Hitachi Chemical Company, Ltd.Inventors: Shinji Takeda, Masami Yusa, Yasuo Miyadera
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Patent number: 5213890Abstract: A heat resistant composite film is described, which comprises (I) a thermoplastic film and (II) a cured layer of a thermosetting resin composition comprising (A) 100 parts by weight of an aliphatic diamine having a spiroacetal ring, (B) from 5 to 150 parts by weight of an ester derived from maleic acid and an alcohol represented by formula (I), and (C) from 20 to 250 parts by weight of an ester derived from a tetracarboxylic acid and an alcohol represented by formula (I),R.sup.1 --(OR.sup.2).sub.n --OH (I)wherein R.sup.1 represents an alkyl group having from 1 to 4 carbon atoms; R.sup.2 represents an alkylene group having from 2 to 4 carbon atoms; and n represents 0 or an integer of from 1 to 3. The composite film is resistant to temperatures of 150.degree. C. or higher while exhibiting flexibility.Type: GrantFiled: August 19, 1991Date of Patent: May 25, 1993Assignee: Mitsubishi Petrochemical Co., Ltd.Inventors: Kaoru Kanayama, Noriko Okazaki
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Patent number: 5196509Abstract: In one embodiment this invention provides polymalonamide polymers with side chains which exhibit nonlinear optical response.Type: GrantFiled: March 25, 1991Date of Patent: March 23, 1993Assignee: Hoechst Celanese Corp.Inventor: Diane E. Allen
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Patent number: 5191016Abstract: Functionalized poly(hydroxyalkanoate) derivatives having the general structural formula: ##STR1## wherein Y is hydrogen, a saccharide moiety or an alkenyl moiety having a molecular weight in the range of from about 25 to about 100,000; R.sub.1, R.sub.2 and R.sub.3 are, independently, hydrogen, an aromatic moiety, an alkyl moiety or an alkenyl moiety, said alkyl moiety or alkenyl moiety including from one to about nine carbon atoms; A is carbonyl or methylene; X is oxygen or imino (--NH); Z is selected from the group consisting of hydrogen, a saccharide moiety, an alkyl moiety and an alkenyl moiety having a molecular weight in the range of from about 25 to about 100,000, with the proviso that if Y is hydrogen, Z is not hydrogen; r.sub.1, r.sub.2 and r.sub.Type: GrantFiled: July 19, 1990Date of Patent: March 2, 1993Inventor: Manssur Yalpani
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Patent number: 5189134Abstract: Novel nonlinearly optically active polymers, well suited for electrooptical applications, are prepared by copolymerizing a first difunctional monomer with a second difunctional comonomer, with at least one of such difunctional monomers including a polar charge transfer moiety containing at least one electron acceptor group and at least one electron donor group (D), and further wherein the polymerizable functional groups are borne by the one or more electron donor groups (D).Type: GrantFiled: September 18, 1989Date of Patent: February 23, 1993Assignee: Rhone-Poulenc ChimieInventors: Gerard Mignani, Pascal Barthelemy, Remi Meyrueix
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Patent number: 5183847Abstract: Alkali-soluble resins, their preparation and use are disclosed herein. The resins are carboxylated polyamide/acrylic resins and are synthesized in a two-step fusion process in which a polyamide is first condensed with a carboxylated rosin and this intermediate product is then further condensed with an acrylic or styrene/acrylic copolymer.Type: GrantFiled: September 21, 1988Date of Patent: February 2, 1993Assignee: BASF CorporationInventors: Sobhy El-Hefnawi, Shailesh C. Shah, Basil Wasyliw
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Michael addition aminopolyester resins as dilution extenders for zinc-containing metal resinate inks
Patent number: 5180424Abstract: The invention is a printing ink comprising a zinc-containing metal resinate complexed with aminopolyester resins and the process for preparing them. In particular, the invention relates to aminopolyester resins having properties which make them useful as resinate dilution extenders in formulating vehicles for gravure and intaglio printing inks.Type: GrantFiled: May 18, 1992Date of Patent: January 19, 1993Assignee: Westvaco CorporationInventor: G. Frederick Hutter -
Patent number: 5175234Abstract: Polyimide oligomers include (1) linear, monofunctional crosslinking oligomers prepared by condensing a monoanhydride end cap with a diamine that includes alternating ether and "Sulfone" (--SO.sub.2 --, --S--, --CO--, --(CF.sub.3).sub.2 C--, or --(CH.sub.3).sub.2 C--) linkages connecting alternating aromatic radicals and with a dianhydride (or dianhydride mixture), particularly the unsaturated, aliphatic dianhydride commonly known as MCTC; (2) linear, mono- or difunctional crosslinking oligomers prepared by condensing an amine end cap with a diamine and a dianhydride; and (3) multidimensional, crosslinking oligomers having an aromatic hub and at least three radiating arms connected to the hub, each arm including a crosslinking end cap at its distal end and at least one imide linkage.Blends, prepregs, and composites can be prepared from the oligomers.Type: GrantFiled: November 7, 1989Date of Patent: December 29, 1992Assignee: The Boeing CompanyInventors: Hyman R. Lubowitz, Clyde H. Sheppard
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Patent number: 5126429Abstract: This invention relates to amorphous, flexible elastomeric polyamides based on dimer fatty acids and special disecondary diamines which have a glass transition temperature below 10.degree. C., to the production of these elastomeric polyamides and to their use as rubbers, plasticizers and, in particular, high-impact modifiers for thermoplastics or as flexible segments for the synthesis of thermoplastic elastomers and as additives for other purposes.Type: GrantFiled: February 19, 1991Date of Patent: June 30, 1992Assignee: Bayer AktiengesellschaftInventors: Burkhard Kohler, Hans-Detlef Heinz, Heinrich Schrage
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Patent number: 5109105Abstract: Polyamide advanced composites are formed by the condensation of diacid halides (or dicarboxylic acids) and diamines in a linear or multidimensional morphology with crosslinkable end caps that provide improved solvent-resistance. The diamines and diacid halides generally include "sulfone" linkages in aryl chains to impart the desired combination of physical properties to the oligomers, prepregs, and composites. Linear oligomers have mono- or difunctional crosslinking end caps at the ends of polyarylamide chains. Multidimensional oligomers have a hub and three or more radiating amide arms, each arm having a mono- or difunctional crosslinking end cap at its distal end.Type: GrantFiled: June 7, 1989Date of Patent: April 28, 1992Assignee: The Boeing CompanyInventors: Hyman R. Lubowitz, Clyde H. Sheppard
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Patent number: 5101012Abstract: This invention relates to a composition prepared by reacting(a) at least one reaction product of a hydrocarbyl substituted carboxylic acid or anhydride having a hydrocarbyl group containing from about 8 to about 150 carbon atoms and at least one polyamine wherein the reaction product has at least one NH group capable of addition to a double bond; with(b) at least one sulfo compound represented by the following formula: ##STR1## wherein each R.sub.1 is independently hydrogen or a hydrocarbyl group;a is zero or one;Q is a hydrocarbylene group or --C(X)N(R.sub.2)Q'--;R.sub.2 is hydrogen or a hydrocarbyl group;X is sulfur or oxygen;each Q' is a hydrocarbylene group; andZ is --S(O)OH, or --S(O).sub.2 OH or an ester, a metal salt or an ammonium salt of the sulfo compound.The invention also relates to polymer fabrics treated with the compositions of the present invention. The treated polymer fabrics have improved wicking/wetting characteristics.Type: GrantFiled: August 6, 1991Date of Patent: March 31, 1992Assignee: The Lubrizol CorporationInventor: Kasturi Lal
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Patent number: 5098991Abstract: A process is disclosed for preparation of anhydrides containing additional carboxylic acid moieties and dianhydrides of disubstituted maleic anhydride compounds wherein the acid anhydrides and dianhydrides retain their alkene character. The resulting alkene compounds are useful as precursors for polyesters, thermally stable polyamide-imides and polyimides which are also disclosed, as well as a process for their preparation.Type: GrantFiled: January 8, 1990Date of Patent: March 24, 1992Assignee: Amoco CorporationInventors: Steven J. Behrend, David A. Young, Ellis K. Fields
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Patent number: 5093421Abstract: A new copolymer polyamide resin having very low water absorption which comprises copolymerized therein 99 to 5 parts by weight of polyamide polymeric component having at least one kind of repeating unit represented by the formula (1) or (2) below and 1 to 95 parts by weight of polyolefin component having an average molecular weight of 500 to 10,000, both terminals of said polyolefin being carboxylic acid groups, amino groups, or hydroxyl groups.--NH(CH.sub.2).sub.n CO-- (1)(where n is an integer from 5 to 11.)--NHXNHCOYCO (2)(where X is C.sub.m H.sub.2m (m is an integer from 6 to 12), isophorone group, phenylene group, or cyclohexylene group; and Y is C.sub.l H.sub.2l (l is an integer from 4 to 10), phenylene group, or cyclohexylene group.Type: GrantFiled: February 2, 1990Date of Patent: March 3, 1992Assignee: Daicel Chemical Industries Co., Ltd.Inventors: Koichiro Arita, Hajime Suzuki
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Patent number: 5079338Abstract: An improvement in thermosetting bis(isoimide) resin compositions is achieved by replacing a small part of the unsaturated carboxylic acid anhydride starting material with a stoichiometrically equivalent amount of a poly(diolefin)-unsaturated carboxylic acid anhydride adduct.Type: GrantFiled: October 15, 1990Date of Patent: January 7, 1992Inventors: Thomas A. Schenach, John D. Harper
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Patent number: 5079339Abstract: The present invention is an improved polyamide copolymer having monomer units including repeat units of the formula ##STR1## where n is from 10 to 14 and preferably is 12 (1,12-dodecanediamine), units derived from a symmetrical diacid or derivatives of said diacid, preferably a symmetrical aromatic dicarboxylic acid. The copolymer has minor amounts, preferably 3 to 30 and more preferably 5 to 10 mol percent, of units derived from an additional comonomer.Type: GrantFiled: August 13, 1990Date of Patent: January 7, 1992Assignee: Allied-Signal Inc.Inventors: Murali K. Akkapeddi, Jeffrey H. Glans
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Patent number: 5072003Abstract: Compounds are disclosed which are anhydrides containing additional carboxylic acid moieties and dianhydrides of disubstituted maleic anhydride compounds wherein the acid anhydrides and dianhydrides retain their alkene character. These compounds are useful as precursors for polyesters, thermally stable polyamide-imides and polyimides.Type: GrantFiled: June 11, 1990Date of Patent: December 10, 1991Assignee: Amoco CorporationInventors: Steven J. Behrend, Ellis K. Fields
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Patent number: 5026823Abstract: This invention relates to novel polyimides derived from alicyclic dianhydrides and a process for synthesizing the polyimides.Type: GrantFiled: September 12, 1989Date of Patent: June 25, 1991Assignee: The Dow Chemical CompanyInventors: John D. Summers, Thomas O. Jeanes
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Patent number: 5025070Abstract: A new copolymer polyamide resin having very low water absorption which comprises copolymerized therein 99 to 5 parts by weight of polyamide polymeric component having at least one kind of repeating unit represented by the formula (1) or (2) below and 1 to 95 parts by weight of polyolefin component having an average molecular weight of 500 to 10,000, both terminals of said polyolefin being carboxylic acid groups, amino groups, or hydroxyl groups.--NH(CH.sub.2).sub.n CO-- (1)(where n is an integer from 5 to 11.)--NHXNHCOYCO-- (2)(where X is C.sub.m H.sub.2m (m is an integer from 6 to 12), isophorone group, phenylene group, or cyclohexylene group; and Y is C.sub.l H.sub.2l (l is an integer from 4 to 10), phenylene group, or cyclohexylene group).Type: GrantFiled: July 17, 1986Date of Patent: June 18, 1991Assignee: Daicel Chemical Industries Co., Ltd.Inventor: Hajime Suzuki