Mixed With 1,2-epoxy Reactant Or Polymer Derived Therefrom Patents (Class 525/449)
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Patent number: 6359082Abstract: The present invention relates to a process for the preparation of epoxy(meth)acrylates by simultaneously reacting 1 equivalent of organic compounds containing epoxide groups with A) 0.8 to 1.2 moles of organic dicarboxylic anhydrides having a molecular weight from 98 to 166 and B) 0.8 to 1.2 OH equivalents of OH group-containing reaction products, which are prepared at a COOH/OH equivalent ratio of 0.6:1 to 0.95:1, of a) (meth)acrylic acid and b) tri- or tetrahydric ether alcohols having a molecular weight of 180 to 1000 and containing at least two ethylene and/or propylene oxide units as part of an ether structure.Type: GrantFiled: June 18, 1997Date of Patent: March 19, 2002Assignee: Bayer AktiengesellschaftInventor: Jürgen Meixner
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Patent number: 6333064Abstract: A heat curable thermosetting epoxy resin formulation useful for making prepregs and electrical laminates containing a viscosity modifier, wherein the viscosity modifier is: (a) an optionally substituted polymer of a monovinylidene aromatic monomer, optionally having one or more further unsaturated monomers copolymerized therewith; (b) an optionally substituted polyphenylene oxide; or (c) an oxazolidone ring-containing compound.Type: GrantFiled: August 6, 1999Date of Patent: December 25, 2001Assignee: The Dow Chemical CompanyInventor: Joseph Gan
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Patent number: 6303706Abstract: A resin composition for powder coating, which comprises the following components (A), (B) and (C): (A) a carboxyl group-containing resin having a number average molecular weight of from 1,000 to 20,000, an acid value of from 5 to 200 and a glass transition temperature of from 30 to 120° C.; (B) tris(&bgr;-methylglycidyl) isocyanurate of the formula (1): (C) as a ring opening polymerization inhibitor, at least one compound selected from the group consisting of amines having in their molecules a bond of the formula (2): and onium salts.Type: GrantFiled: June 19, 2000Date of Patent: October 16, 2001Assignee: Nissan Chemical Industries, Ltd.Inventors: Satoru Miyake, Hisao Ikeda, Motohiko Hidaka, Takeo Moro
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Patent number: 6211249Abstract: The present invention relates to novel bioabsorbable polymeric compositions based upon AB polyester polyether or related diblocks and triblocks. Compositions according to the present invention may be used in medical applications, for example, for reducing or preventing adhesion formation subsequent to medical procedures such as surgery, for producing surgical articles including stents and grafts, as coatings, sealants, lubricants, as transient barriers in the body, for materials which control the release of bioactive agents in the body, for wound and bum dressings and producing biodegradable articles, among numerous others.Type: GrantFiled: January 13, 1998Date of Patent: April 3, 2001Assignee: Life Medical Sciences, Inc.Inventors: Daniel Cohn, Theodor Stern, Avraham Levi
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Patent number: 6201070Abstract: Methods are disclosed for enhancing the toughness, e.g., resistance to cracking upon flexation, of coatings made from cycloaliphatic epoxide derivatives wherein the cycloaliphatic epoxide derivative is a cycloaliphatic epoxide ester of a hydroxy-functional compound containing at least one branched, 1,2-alkylene oxide unit. Processes for making the cycloaliphatic epoxide derivatives and coating formulations comprising the cycloaliphatic epoxide derivatives are also disclosed.Type: GrantFiled: November 20, 1996Date of Patent: March 13, 2001Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Naofumi Kumabe, Thomas Andrew Upshaw, Robert Francis Eaton, Bharat Kanaiyalal Patel, John Kellis Braddock
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Patent number: 6180727Abstract: There is provided a curing agent composition, a method for making a curing agent composition, two component curable epoxy resin compositions, methods of their manufacture, and the different cured products thereof. The curing agent comprises the reaction product of a a) phenolic acid substituted with at least one carboxyl group and at least one hydrocarbyl group having at least 1 carbon atom; b) a polyepoxide compound; c) a polyamine compound having at least two primary amine groups; and d) a monoglycidyl capping agent. The curing agents contain secondary amine groups, yet are reactive enough to cure epoxy resins without the necessity for external catalysts/accelerators, at a wide range of curing temperatures and are immediately compatible with a standard diglycidyl ether of Bisphenol-A epoxy resins.Type: GrantFiled: December 31, 1997Date of Patent: January 30, 2001Assignee: Shell Oil CompanyInventor: Kalyan Ghosh
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Patent number: 6143423Abstract: An epoxy resin composition contains (A) an epoxy resin having an epoxy equivalent of at least 185 and possessing a skeleton having a structure in which two benzene rings are conjugable to each other directly or via an aliphatic unsaturated double bond, carbon atoms having an atomic orbital of SP.sup.2 type accounting for at least 50% of the carbon number, (B) a phenolic resin having a hydroxyl equivalent of at least 160, carbon atoms having an atomic orbital of Sp.sup.2 type accounting for at least 85% of the carbon number, (C) a polyimide resin in an amount of 1-20 parts by weight per 100 parts by weight of components (A) and (B) combined, and (D) 70-85% by volume of the entire composition of an inorganic filler. The composition cures into products having flame retardancy and high-temperature reliability even though it is free of bromine compounds and antimony compounds.Type: GrantFiled: April 6, 1998Date of Patent: November 7, 2000Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Toshio Shiobara, Satoshi Okuse, Takayuki Aoki, Hideto Kato
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Silicone coated film with back side slip control coating and method of controlling slip of such film
Patent number: 6120868Abstract: The present invention relates to a self-supporting polymer film with a silicone-containing coating layer on the front surface that is capable of releasing free silicone oil and a slip control coating on the back surface, where the slip control coating has an exposed surface adapted to contact the free silicone oil. The slip control coating comprises a binder, preferably a water-soluble copolyester comprising about 50 to about 98 mol percent isophthalic acid, about 2 to about 20 mol percent of at least one sulfomonomer containing a sulfonate group attached to a dicarboxylic nucleus, and about 100 mol percent of at least one copolymerizable glycol having from about 2 to about 11 carbon atoms; and also includes a coupler, preferably a silane. A method for controlling the slip of silicone coated film by coating the back side of the film with this slip control coating is also disclosed.Type: GrantFiled: December 21, 1998Date of Patent: September 19, 2000Assignee: Mitsubishi Polyester Film, LLCInventors: John M. Heberger, Kenneth J. Muschelewicz -
Patent number: 6114473Abstract: A resin composition for powder coating, which comprises the following components (A), (B) and (C): (A) a carboxyl group-containing resin having a number average molecular weight of from 1,000 to 20,000, an acid value of from 5 to 200 and a glass transition temperature of from 30 to 120.degree. C.; (B) tris(.beta.-methylglycidyl) isocyanurate of formula (1); and (C) as a ring opening polymerization inhibitor, at least one compound selected from the group consisting of amines having in their molecules a bond of formula (2); and onium salts.Type: GrantFiled: May 28, 1997Date of Patent: September 5, 2000Assignee: Nissan Chemical Industries, Ltd.Inventors: Satoru Miyake, Hisao Ikeda, Motohiko Hidaka, Takeo Moro
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Patent number: 6017632Abstract: The present invention relates to particulate concentrate compositions formed by intercalation of a polymer polymerizing component into the galleries of a layered inorganic cation exchange composition initially in proton exchanged form and to the use of the particulate concentrates for the preparation of cured polymer-inorganic nanolayer hybrid composite compositions. The polymer polymerizing component comprising the particulate concentrate contains a basic group for reaction with the protons of the inorganic cation exchanger. Also, the polymer polymerizing component contains a functional group for polymerization reaction with a polymer precursor, a mixture of polymer precursors, or a polymer melt which is introduced into the galleries of the inorganic cation exchanger and reacts with the polymer polymerizing component to form a cured polymer-inorganic nanolayer hybrid composite.Type: GrantFiled: August 20, 1998Date of Patent: January 25, 2000Assignee: Claytec, Inc.Inventors: Thomas J. Pinnavaia, Tie Lan
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Patent number: 6008291Abstract: Viscosity-stabilized aqueous polyester dispersions comprising an acid-functional polyester resin a, neutralizing agent b for the polyester resin a, the amount of neutralizing agent being sufficient to convert from 10 to 200% of the amount of substance of acid groups in the polyester resin a into salt groups by means of the amount of neutralizing agents added, the neutralizing agents being selected from ammonia and organic amines and also alkali metal hydroxides and alkaline earth metal hydroxides; if desired, an organic auxiliary solvent, silica in an amount such that the mass of SiO.sub.2 is from 0.1 to 50% of the mass of the polyester resin, and water. The dispersions are useful in coating compositions.Type: GrantFiled: November 13, 1998Date of Patent: December 28, 1999Assignee: Vianova Resins AGInventors: Manfred Weinberger, Johann Billiani
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Patent number: 5936046Abstract: There is provided a curing agent composition for epoxy resins and two component curable epoxy resin compositions. The curing agent is made by reacting at least a b) substituted aryl amidopolyamine with a c) monoglycidyl capping agent, where the substituted aryl amidopolyamine is made by reacting at least:bi) a phenolic compound substituted with at least one carboxyl group and at least one hydrocarbyl group having at least 1 carbon atom, andbii) an aliphatic polyamine compound having at least two primary amine groups.The curing agent is storage stable for at least 6 months. There is also provided a two component epoxy resin composition, which advantageously can be made in the absence of external catalysts/accelerators, and can cure within 24 hours at the low temperature of 4.4.degree. C. The two component epoxy resin composition also exhibits excellent compatibility between the curing agent and the epoxy resin, thus reducing or eliminating the need for an induction time.Type: GrantFiled: December 31, 1997Date of Patent: August 10, 1999Assignee: Shell Oil CompanyInventor: Kalyan Ghosh
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Patent number: 5912305Abstract: Thermoplastic molding materials containA) from 50 to 99% by weight, based on the total weight of the molding material, of a toughened polymer,B) from 1 to 20% by weight, based on the total weight of the molding material, of a blend ofB.sub.1) a copolymer comprising polymerized units which are derived from a polymerizable carboxylic acid or derivatives thereof andB.sub.2) a polyamide,C) from 0 to 40% by weight of a fibrous or particulate filler or of a mixture thereof andD) from 0 to 20% by weight of conventional additives and processing assistants.Type: GrantFiled: December 29, 1997Date of Patent: June 15, 1999Assignee: BASF AktiengesellschaftInventors: Graham Edmund Mc Kee, Jurgen Koch, Wolfgang Fischer, Axel Gottschalk, Norbert Guntherberg, Bernhard Rosenau
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Patent number: 5891943Abstract: A thermoplastic resin composition which comprises (A) a thermoplastic polyester resin such as polybutylene terephthalate, (B) a rubber-modified styrenic resin such as an ABS resin, (C) an olefinic copolymer composed of (c-1) an olefinic polymer fragment and (c-2) a vinyl-series polymer fragment and (D) a branched ester obtainable from a C.sub.16-30 fatty acid and/or alcohol having at least one branched chain, and which may contain (E) an inorganic filler, (F) a flame-retardant, (G) an inorganic flame-retardant auxiliary and so on. This resin composition has improved friction/abrasion characteristics with maintaining its high mechanical characteristics, and is useful for providing a moulded article including a sliding member.Type: GrantFiled: June 18, 1997Date of Patent: April 6, 1999Assignee: Polyplastics Co., Ltd.Inventors: Toru Katsumata, Hiromitsu Seito
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Patent number: 5853886Abstract: The present invention relates to particulate concentrate compositions formed by intercalation of a polymer polymerizing component into the galleries of a layered inorganic cation exchange composition initially in proton exchanged form and to the use of the particulate concentrates for the preparation of cured polymer-inorganic nanolayer hybrid composite compositions. The polymer polymerizing component comprising the particulate concentrate contains a basic group for reaction with the protons of the inorganic cation exchanger. Also, the polymer polymerizing component contains a functional group for polymerization reaction with a polymer precursor, a mixture of polymer precursors, or a polymer melt which is introduced into the galleries of the inorganic cation exchanger and reacts with the polymer polymerizing component to form a cured polymer-inorganic nanolayer hybrid composite.Type: GrantFiled: June 17, 1996Date of Patent: December 29, 1998Assignee: Claytec, Inc.Inventors: Thomas J. Pinnavaia, Tie Lan
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Patent number: 5837799Abstract: A fire-retardant compound including bromine indicated by general formula (1), wherein the end group X and Y are comprised by A or B shown in formula (2), and the said fire-retardant compound is a mixture of the composition including 15 to 30% of X=Y=A, the composition including 40 to 60% of X=A and Y=B and the composition including 20 to 35% of X=Y=B, and degree of polymerization n is indicated by an integral number from 0 to 30, and a flame-retarded thermoplastic resin including said fire-retardant compound.Type: GrantFiled: August 23, 1996Date of Patent: November 17, 1998Assignee: Tohto Kasei Co., Inc.Inventors: Toshihiko Chen, Yoshiaki Nakamura, Tetsunori Sato, Yoshiyuki Morikawa
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Patent number: 5759694Abstract: A novel polyester is provided comprising the reaction product of: (1) an acid functional polyester which is prepared from: (a) a material of the structure: ##STR1## wherein X is a lower alkyl group having from about 1 to about 4 carbon atoms, and R and R' are independently lower alkylene groups having from about 1 to about 4 carbon atoms; (b) a polyol different from (a); and (c) a polyacid; and (2) a monoepoxide containing from about 3 to 20 carbon atoms. The reaction product is carbamoylated. The carbamoylated polyester can be present in a film-forming composition also having a carbamate functional acrylic polymer; and an aminoplast crosslinking agent. Also such a film-forming composition can be a clear coat in a multi-component composite coating composition.Type: GrantFiled: June 30, 1997Date of Patent: June 2, 1998Assignee: PPG Industries, Inc.Inventors: Michael A. Mayo, Daniel E. Rardon, Leigh-Ann Humbert
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Patent number: 5731090Abstract: In a two-part, 100% solids adhesive composition useful for preparing a polymeric laminate adhesive pouch, a first part is a liquid OH-functional polyester containing epoxy resin having both epoxy and hydroxyl functionality and a second part is a multi-functional isocyanate.Type: GrantFiled: July 29, 1996Date of Patent: March 24, 1998Assignee: Morton International, Inc.Inventor: Mai Chen
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Patent number: 5719246Abstract: According to the present invention, there is provided an acrylic copolymer having a number average molecular weight of 1000-500,000, which comprises 1-90 % by weight of a structural unit represented by the following general formula ##STR1## (wherein R represents a hydrogen atom or a methyl group) and 99-10 % by weight of a structural unit-derived from an ethylenic unsaturated monomer, an acrylic copolymer composition and a paint containing the same.The coat obtained by applying the acrylic copolymer has excellent abrasion resistance, chemical resistance, flexibility, strength and the like.Type: GrantFiled: December 20, 1996Date of Patent: February 17, 1998Assignee: Mitsubishi Chemical CorporationInventors: Yasuyuki Taniguchi, Yuji Soejima
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Patent number: 5712363Abstract: The present invention relates to coating compositions including a particular class of oligomeric sterically hindered polyamines as replacements for traditional blocked and unblocked polyamine crosslinkers. The use of these oligomeric sterically hindered polyamine crosslinkers resultss in a desirable pot life/cure speed relationship not generally available with traditional unblocked polyamine crosslinkers, as well as a lower VOC and often better appearance characteristics than generally available with the traditional blocked varieties.Type: GrantFiled: August 28, 1995Date of Patent: January 27, 1998Assignee: Akzo Nobel NVInventors: Arie Noomen, Thomas Mezger, Klaus Hobel, Keimpe Jan van den Berg
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Patent number: 5639821Abstract: The invention relates to powder coatings which are characterized in that they contain as film-forming material a mixture of(A) from 19.9 to 90.0 percent by weight of a synthetic resin which contains epoxide groups and may contain ethylenically unsaturated double bonds, or of a mixture of such epoxide group-containing synthetic resins,(B) from 9.9 to 80.0 percent by weight of a compound which contains carboxyl groups and may contain ethylenically unsaturated double bonds, or of a mixture of such carboxyl group-containing compounds,(C) from 0 to 20 percent by weight of a compound which contains ethylenically unsaturated double bonds and is different from (A) and (B), or of a mixture of such compounds, and(D) from 0.1 to 3.0 percent by weight of an initiator for free-radical polymerizations or of a mixture of initiators for free-radical polymerizations,the percentages by weight of (A)+(B)+(C)+(D) being=200% by weight and the mixture of components (A), (B), (C) and (D) containing from 0.1 to 6.Type: GrantFiled: March 28, 1995Date of Patent: June 17, 1997Assignee: BASF Lacke+Farben, AGInventors: Wolfgang Kranig, Klaus Cibura, Joachim Woltering, Christopher Hilger, Josef Rademacher
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Patent number: 5637356Abstract: Polyesters are formed from diols and dibasic carboxylic acids at an OH/COOH ratio to provide --OH termination, and then end-capped with tribasic carboxylic acids. A major portion of the dibasic carboxylic acids used to form the polyesters have the formula: ##STR1## where x=8-32, y=0-8, x+y=8-32. The polyesters are used as support resins for forming acrylic resin emulsions. The polyester/acrylic acid emulsions are useful, for example, as textile size.Type: GrantFiled: March 5, 1996Date of Patent: June 10, 1997Assignee: Morton International, Inc.Inventors: Ronald J. Kerr, John P. Petrovich, Stephen J. Walker, J. Alvin Binkley
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Patent number: 5608004Abstract: A water base coating composition having a solid content of from 50 to 80 wt % and having a binder component dissolved or dispersed in a solvent mixture comprising water and a hydrophilic organic solvent, said binder component comprising from 30 to 95 wt % of a polyester resin obtained from an aromatic polybasic carboxylic acid or its acid anhydride and a polyhydric alcohol and having a hydroxyl value of from 100 to 280 and an acid value of from 0 to 15, and from 70 to 5 wt % of a melamine resin and/or a benzoguanamine resin.Type: GrantFiled: April 5, 1995Date of Patent: March 4, 1997Assignee: Dai Nippon Toryo Co., Ltd.Inventors: Tsunehiko Toyoda, Harufumi Tsuchiya, Hiroaki Omoto, Mitsuru Kohno, Maki Ii
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Patent number: 5574112Abstract: The invention relates to a process for the preparation of powder coatings, in which a mixture ofA) a binder comprising an epoxide group-containing synthetic resin or a mixture of epoxide group-containing synthetic resins, andB) a crosslinking agent comprising a compound which contains on statistical average at least two carboxyl groups and at least one acid anhydride group per molecule, or a mixture of such compounds, is admixed before or during the melt homogenization process withC) a polyol or a mixture of polyols in such an amount that from 0.1 to 0.9 hydroxyl groups of component C) are present per acid anhydride group of component B).The mixture is homogenized in the molten state and the resulting homogenized melt, after having cooled and solidified, is powdered.Type: GrantFiled: March 6, 1995Date of Patent: November 12, 1996Inventors: Wolfgang Kranig, Klaus Cibura, Joachim Woltering, Christopher Hilger
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Patent number: 5539062Abstract: Compositions are provided for comprising a compatibilizing PPE and a naphthalate-type polyester resin wherein the compositions have a drop in the elastic modulus occurring at least about 15.degree. C. higher than the corresponding blend wherein the polyester does not contain a substantial portion of naphthalate moieties. The compositions can further comprise impact modifiers, reinforcing agents, fillers, stabilizers, antistatic agents, plasticizers, lubricants, and other additives to provide compositions with enhanced physical properties. Articles molded from these compositions are useful in the automotive industry.Type: GrantFiled: June 7, 1995Date of Patent: July 23, 1996Assignee: General Electric CompanyInventors: Sterling B. Brown, Chorng-Fure R. Hwang, Steven T. Rice, James J. Scobbo, Jr., John B. Yates
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Patent number: 5498651Abstract: A method for polymerizing macrocyclic polyester oligomers comprising the step of contacting macrocyclic polyester oligomers and polymerization catalysts in the presence of epoxides and/or thioepoxides.Type: GrantFiled: June 19, 1995Date of Patent: March 12, 1996Assignee: General Electric CompanyInventor: Daniel J. Brunelle
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Patent number: 5486357Abstract: Internal polymeric surfaces of medical devices are provided that have enhanced biocompatibility properties. The internal polymeric surface presents an anti-thrombogenic, fibrinolytic or thrombolytic interface with body fluids such as blood flowing through medical device tubing during implantation for medical procedures. The biocompatibility enhancing agent is secured to the polymeric substrate by a spacer molecule which is covalently bound to the internal polymeric surface which had been subjected to radiofrequency plasma treatment with a low pressure plasma medium of water vapor, oxygen or combination of water vapor and oxygen gas.Type: GrantFiled: October 27, 1993Date of Patent: January 23, 1996Assignee: Cordis CorporationInventor: Pallassana V. Narayanan
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Patent number: 5468813Abstract: The object of the present invention is to provide a powder coating excellent in storage stability and in coat surface smoothness.The present invention relates to a powder coating comprising a binder resin and a curing agent, characterized in that said curing agent has particle size characteristics such that the average particle size is 0.3 to 7 .mu.m and particles having a particle size not smaller than 20 .mu.m account for not less than 10% by weight of all curing agent particles.Type: GrantFiled: November 1, 1994Date of Patent: November 21, 1995Assignee: Nippon Paint Co., Ltd.Inventors: Akimitsu Uenaka, Yuji Toyoda, Koichi Tsutsui, John Kenny
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Patent number: 5424372Abstract: The action of thermoplastic polymers to whose polymer backbone aliphatic or cycloaliphatic groups are bonded via a group --O--, --O--CO--, --CO--OR.sup.22 --OCO-- or --CO--O--, said aliphatic or cycloaliphatic groups being substituted by Cl, Br and/or iodine in the .alpha.--, .beta.--, .gamma.-- or .omega.-position, on an unsubstituted or substituted tetrathio-, tetraseleno- or tetratelluro-naphthalene or -tetracene contained in this polymer gives electrically conducting compositions by the formation of charge transfer complexes. These compositions are suitable for the production of antistatic or electrically conducting mouldings, sheets, filaments, fibres, coatings and composites.Type: GrantFiled: March 11, 1994Date of Patent: June 13, 1995Assignee: Ciba-Geigy CorporationInventors: Jurgen Finter, Bruno Hilti, Carl W. Mayer, Ernst Minder
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Patent number: 5420227Abstract: Modified acid polyesters obtained by reaction of polyols with unsaturated polycarboxylic acids or anhydrides thereof and conjugated dienoic acids. These products are suitable as curing agents for epoxy resins, in particular for curing tin can finishes.Type: GrantFiled: December 10, 1993Date of Patent: May 30, 1995Assignee: Hoechst AGInventors: Armin Pfeil, Paul Oberressl, Reiner-Kurt Illgen
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Patent number: 5418301Abstract: The invention relates to a dendritic macromolecule of the polyester type comprising a central initiator molecule or initiator polymer having one or more reactive hydroxyl groups (A). The groups (A) are under formation of an initial tree structure bonded to reactive carboxyl groups (B) of a monomeric chain extender having the two reactive groups (A) and (B). The tree structure is optionally extended and further branched from the initiator molecule or initiator polymer by addition of further molecules of a monomeric chain extender by means of bonding between the reactive groups (A) and (B) thereof and is thereafter optionally further extended by reaction with a chain stopper. The invention also comprises a process for preparation of the dendritic macromolecule.Type: GrantFiled: July 13, 1994Date of Patent: May 23, 1995Assignee: Perstorp ABInventors: Anders Hult, Eva Malmstrom, Mats Johansson, Kent Sorensen
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Patent number: 5409764Abstract: A curable adhesive composition comprising an unsaturated polyester oligomer (A) of any of the following formulae (I) to (IV), obtained by reacting a compound (a) having a hydroxyl group and/or an amino group, a cyclic acid anhydride (b) and an epoxide (c) having an ethylenically unsaturated group, and an adhesive polymer (B), ##STR1## wherein: R.sub.1 is a divalent organic moiety having 1 to 40 carbon atoms,R.sub.2 is a divalent organic moiety having 1 to 10 carbon atoms,R.sub.3 is hydrogen or methyl,R.sub.4 is a monovalent organic moiety having 1 to 40 carbon atoms,R.sub.5 is a monovalent organic moiety having 1 to 40 carbon atoms,R.sub.6 is hydrogen or a monovalent organic moiety having 1 to 10 carbon atoms, andn is an integer of 2 or greater.Type: GrantFiled: September 23, 1994Date of Patent: April 25, 1995Assignee: Toyo Ink Manufacturing Co., Ltd.Inventors: Tsukasa Otsuki, Masato Yanagi, Toshikazu Onikubo, Kouichi Iibuchi
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Patent number: 5397671Abstract: A reactive melt mixing process for preparing toner resin, comprising: melting a reactive base resin, thereby forming a polymer melt; adding to said polymer melt a free radical initiator compound and optionally a vinyl monomer compound to form a second melt; and heating and mixing under high shear said second melt with optional addition of a vinyl monomer compound to form a partially crosslinked and partially gelled toner resin.Type: GrantFiled: February 10, 1994Date of Patent: March 14, 1995Assignee: Xerox CorporationInventors: Robert D. Bayley, Carol A. Fox, Thomas R. Hoffend
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Patent number: 5373084Abstract: Provided are crosslinkable semicrystalline polyester plasticizers useful in thermosetting powder coating compositions. The plasticizers of the present invention are preferably comprised of residues of 1,6-hexanediol and 1,12-dodecanedioic acid, and optionally, residues of trifunctional acids or polyols such as trimethylol-propane, glycerol, trimellitic acid, and the like. The thermosetting powder coating compositions also provided by the present invention exhibit markedly superior properties when compared to compositions lacking said plasticizer. Such coatings exhibit better smoothness, less orange peel, better impact strength and flexibility. In the case of the less-reactive crosslinker such as self-blocked isophorone isocyanate (IPDI), the plasticizers greatly improve the reactivity of the composition and reduce the cure requirement.Type: GrantFiled: April 21, 1994Date of Patent: December 13, 1994Assignee: Eastman Chemical CompanyInventor: Yeong-Ho Chang
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Patent number: 5364912Abstract: Thermoplastic resins are prepared by reacting polyglycidyl esters containing one or more mesogenic moieties with compounds having an average of more than one active hydrogen atom per molecule. These resins exhibit ordering of the molecular chains in the melt phase and are susceptible to orientation during processing which can result in enhanced unidirectional mechanical properties. These resins are useful in coatings, laminates, castings and the like.Type: GrantFiled: August 16, 1993Date of Patent: November 15, 1994Assignee: The Dow Chemical CompanyInventors: Robert E. Hefner, Jr., Jimmy D. Earls
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Patent number: 5352556Abstract: A low melt toner resin with low minimum fix temperature and wide fusing latitude contains a linear portion and a cross-linked portion containing high density cross-linked microgel particles, but substantially no low density cross-linked polymer. The resin may be formed by reactive melt mixing.Type: GrantFiled: March 23, 1993Date of Patent: October 4, 1994Assignee: Xerox CorporationInventors: Hadi K. Mahabadi, Enno E. Agur, Gerald R. Allison, Michael S. Hawkins, Stephan Drappel, Maria N. V. McDougall, Bernard Grushkin, Thomas R. Hoffend, Angelo J. Barbetta
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Patent number: 5336753Abstract: The present invention relates to a polycondensation and/or addition product containing carboxyl groups and amino groups. This can be obtained by reactinga) polycarboxylic acids or anhydrides thereof, if appropriate together with monocarboxylic acids,b) polyols, if appropriate together with monools, and, if appropriatec) further modifying components, and, if appropriate,d) a component which is capable of reacting with the reaction product from a), b) and, if appropriate, c), with the proviso that the final product contains tertiary amino groups which originate from components a) and/or b) and/or d), and the reaction product from a), b), if appropriate c) and if appropriate d) has an acid number from 5 to 200, preferably 10 to 130, and an amine number from 3 to 150, preferably 10 to 100.Type: GrantFiled: January 8, 1993Date of Patent: August 9, 1994Assignee: BASF Lacke + Farben AGInventors: Werner A. Jung, Udo Vorbeck, Arno Schmitz, Wilhelm Heise, Lutz-Werner Gross
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Patent number: 5336735Abstract: A flame-retardant thermoplastic resin composition is disclosed, comprising (A) a thermoplastic resin and (B-1) a halogenated epoxy resin whose epoxy groups are blocked by a long chain aliphatic carboxylic acid or (B-2) a mixture prepared by melt mixing (b1) a halogenated epoxy resin or (b2) a halogenated epoxy resin whose epoxy groups are blocked with (b3) a long chain aliphatic carboxylic acid. The composition has easy release from mold and satisfactory thermal stability during molding.Type: GrantFiled: September 14, 1992Date of Patent: August 9, 1994Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Katsuji Takahashi, Yuji Sath, Takehisa Mizuno
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Patent number: 5322907Abstract: The invention relates to the use of polyglycidyl compounds as hardeners in powder coating compositions based on polyester resins which react with epoxy groups, which compounds are polyglycidyl esters of formula (I) or (II) ##STR1## wherein in formula (I) R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each independently of one another hydrogen, C.sub.1 -C.sub.4 alkyl or radicals of formula (III) ##STR2## wherein A is a polymethylene group of 2 to 4 carbon atoms, and R.sub.5 and R.sub.6 are each independently of each other hydrogen, C.sub.1 -C.sub.4 alkyl or radicals of formula (III) or, when taken together, are an unsubstituted or a C.sub.1 -C.sub.4 alkyl-substituted methylene or polymethylene group of 2 to 7 carbon atoms, but with the proviso that at least two of the substituents R.sub.1 to R.sub.6 are radicals of formula (III),and, in formula (II)n is an integer from 2 to 6,R.sub.Type: GrantFiled: March 25, 1992Date of Patent: June 21, 1994Assignee: Ciba-Geigy CorporationInventors: Jacques-Alain Cotting, Philippe Gottis
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Patent number: 5312893Abstract: An oriented polyester film (A) which comprises modified polyethylene-2,6-naphthalenedicarboxylate containing a 4,4'-diphenyldicarboxylic acid component and having a heat of crystallization of 16 to 25.5 Joule/g, and (B) which is biaxially oriented; and an oriented polyester film (A') which comprises modified polyethylene-2,6-naphthalenedicarboxylate containing of a glycol component derived from a compound represented by the following formula, ##STR1## wherein each of n and m is independently a positive number of 1 to 9 as an average, provided that m+n equals 2 to 9 as an average and having a heat of crystallization of 6 to 20 Joule/g, and (B) which is biaxially oriented. These films are useful as a base film for a magnetic recording tape or as an electric insulation film.Type: GrantFiled: March 17, 1993Date of Patent: May 17, 1994Assignee: Teijin LimitedInventors: Hisashi Hamano, Masahiro Hosoi, Masanori Nishiyama, Yasuhiro Saeki
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Patent number: 5302690Abstract: Polyester resins are prepared by reacting a lower alkyl ester of an aromatic dicarboxylic acid with an aliphatic diol to form an aromatic polyester, and which includes (i) subjecting to transesterification reaction conditions in the presence of a titanium compound catalyst a transesterification reaction system having the lower alkyl ester of the aromatic dicarboxylic acid, the aliphatic and between 0.02 to 5.0 mole percent, based on the amount of the lower alkyl ester of the aromatic dicarboxylic acid, of an aromatic sulfonic acid compound represented by the following general formula (I):OH--R--O--Ar--SO.sub.3 M (I)wherein Ar is a p-substituted benzene group or a 2,6-substituted naphthalene group, R is a divalent group selected from among --CH.sub.2 CH(CH.sub.3)--, --CH(CH.sub.3)CH.sub.2 --, --CH.sub.2 CH(CH.sub.3)-- and --CH.sub.2 CH.sub.2 OCH.sub.2 CH.sub.2 --, and M is an alkali metal selected from the group consisting of lithium, sodium and potassium.Type: GrantFiled: June 3, 1992Date of Patent: April 12, 1994Assignee: Polyplastics Co., Ltd.Inventors: Kuniaki Kawaguchi, Kenji Hijikata, Toshio Nakane
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Patent number: 5292833Abstract: The invention relates to a thermosetting reactive resin mixture ofa) at least one organic compound, which possesses at least two epoxide groups,b) at least one carbamate compound of the formulae I, II, III or IV, such as can be quoted from the claim petitions,c) at least one basic catalyst,and with or withoutd) other processing aids and/or additives.The thermosetting reactive resin mixture according to the present invention are used for chemically resistant coatings, as cross-linked, no longer soluble and infusible moulded articles, for the production of cathodically precipitable electrophoretic enamels, and for the production of coating powders and automobile paints.Type: GrantFiled: December 30, 1991Date of Patent: March 8, 1994Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Gerwald F. Grahe, Arthur Lachowicz, Roland Fromme
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Patent number: 5268452Abstract: Unsaturated polyester resins of the type already having reactive liquid polymers reacted into the backbone of the resins, are cured in the presence of a reactive liquid polymer additive admixed with the prereacted unsaturated polyester resin. Heating of this system during cure causes the reactive liquid polymer additive to miscibilize with the unsaturated polyester resin. The unsaturated polyester resin modified in the manner described above shows a significant enhancement in toughness as measured by fracture energy over unmodified counterparts or counterparts modified by known methods of adduction or admixing alone.Type: GrantFiled: July 22, 1992Date of Patent: December 7, 1993Assignee: The B.F. Goodrich CompanyInventors: Alan R. Siebert, Robert J. Bertsch
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Patent number: 5264529Abstract: A resin composition for powder coating which comprises a substantially un-gelled polyester A having an acid value of from 1,200 to 5,000 g eq/10.sup.6 g, a substantially un-gelled polyester B having an acid value of from 200 to 1,000 g eq/10.sup.6 g and triglycidyl isocyanurate as a curing agent, wherein the weight ratio of polyester A to polyester B is from 70:30 to 10:90 and the difference (absolute value) in the gel time between polyester A and polyester B is at least 3 minutes.A resin composition for powder coating which causes no problems of polluting a baking oven, which shows less weight loss at the time of reaction and which can form a semi-mat or completely mat stable paint film is provided. These advantages cannot be obtained from any prior art powder coating that comprises a polyester having a large quantity of terminal hydroxyl groups and a blocked isocyanate-based curing agent.Type: GrantFiled: June 9, 1992Date of Patent: November 23, 1993Assignee: Nippon Ester Co., Ltd.Inventors: Tokuzo Nozaki, Katsuyoshi Atsumi, Katsuya Fujimoto
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Patent number: 5258471Abstract: A composition comprising a polymer in dispersion in a non-aqueous continuous diluent, in which the polymer phase comprises a crystallisable polymer, selected from polyesters, polycarbonates and polyamides, a curable solvent for the crystallisable polymer which is miscible with the continuous diluent, and optionally, an auxiliary solvent, and in which the curable solvent is at least partially reacted with the crystallisable polymer, so as to form a stabiliser for the dispersion.Type: GrantFiled: June 5, 1991Date of Patent: November 2, 1993Assignee: Imperial Chemical Industries PLCInventors: Eric Nield, Riaz A. Choudhery
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Patent number: 5250333Abstract: A modified polyethylene terephthalate is provided. Modification is provided by the incorporation of an alkoxylated polyol. The modified PET is melt-strength enhanced and extrusion blow-moldable. The modified PET may contain units derived from 2,6-napthalenedicarboxylic acid, and be useful for making bottles or containers having hot fill applications. Reduced yellowness is advantageously provided.Type: GrantFiled: October 26, 1992Date of Patent: October 5, 1993Assignee: Hoechst Celanese CorporationInventors: Gerald W. McNeely, Aylmer J. Woodward
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Patent number: 5247022Abstract: A thermoplastic molding material based onA) from 2 to 97.5% w/w of a homopolymer or copolymer of polyoxymethyleneB) from 2 to 97.5% w/w of a polyamideC) from 0.5 to 25% w/w of a polycondensate of 2,2-di(4-hydroxyphenyl)propane and epichlorohydrinD) from 0 to 60% w/w of an impact modifier, andE) from 0 to 60% w/w of fibrous or particulate fillers or mixtures thereof.Type: GrantFiled: September 24, 1991Date of Patent: September 21, 1993Assignee: BASF AktiengesellschaftInventors: Graham E. McKee, Walter Goetz, Siegbert Bohnet, Hartmut Zeiner
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Patent number: 5244654Abstract: Internal polymeric surfaces of medical devices are provided that have enhanced biocompatibility properties. The internal polymeric surface presents an anti-thrombogenic, fibrinolytic or thrombolytic interface with body fluids such as blood flowing through medical device tubing during implantation for medical procedures. The biocompatibility enhancing agent is secured to the polymeric substrate by a spacer molecule which is covalently bound to the internal polymeric surface which had been subjected to radiofrequency plasma treatment with a low pressure plasma medium of water vapor, oxygen or combination of water vapor and oxygen gas.Type: GrantFiled: June 25, 1991Date of Patent: September 14, 1993Assignee: Cordis CorporationInventor: Pallassana V. Narayanan
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Patent number: 5237041Abstract: This invention relates to new phosphorus-containing duromers of oligophosphites and epoxides or bisacrylates or unsaturated polyesters.Type: GrantFiled: November 30, 1992Date of Patent: August 17, 1993Assignee: Bayer AktiengesellschaftInventors: Burkhard Kohler, Wolfgang Ebert
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Patent number: 5212260Abstract: The present invention describes a polymeric support film coated with a primer coating composition and overcoated with a silicone release coating, thereby forming a silicone release film. Silicone release films are well known and serve as temporary supports for an adhesive or tacky surface such as for labels, pressure sensitive tape, etc. The primer coating composition, before dilution with water, comprises from about 25 to 75% by weight of a glycidoxy silane and from about 75 to 25% by weight of a copolyester. The copolyester comprises from about 40 to 98 mol percent isophthalic acid; from about 0 to about 50 mol percent of at least one aliphatic dicarboxylic acid; from about 2 to about 20 mol percent of at least one sulfonate group attached to a dicarboxylic nucleus; and about 100 mol percent of glycol having from about 2 to 11 carbon atoms. Typical glycidoxy silanes that can be employed in the primer coating composition include glycidoxypropyltrimethoxysilane.Type: GrantFiled: November 6, 1991Date of Patent: May 18, 1993Assignee: Hoechst Celanese CorporationInventor: Edwin C. Culbertson