Nitrogen Reactant Contains At Least One Amino-nitrogen Atom Patents (Class 528/121)
-
Patent number: 5412044Abstract: Adducts containing terminating nitro (nitroso) groups and one or more mesogenic moieties are prepared by reacting (A) at least one compound containing an average of more than one vicinal epoxide group per molecule with (B) at least one compound containing one or more nitro (nitroso) groups and an average of one reactive hydrogen atom per molecule; with the proviso that at least one member of components (A) and (B) contains a mesogenic moiety. Reduction of these adducts provides amines which are useful as curing agents for epoxy resins.Type: GrantFiled: May 12, 1994Date of Patent: May 2, 1995Assignee: The Dow Chemical CompanyInventors: Robert E. Hefner, Jr., Jimmy D. Earls
-
Patent number: 5395911Abstract: A thermally curable mixture contains 10-70% by weight of reactive compounds, 0.05-2% by weight of at least one basic catalyst, and at least one solvent. The reactive compounds are consisting essentially of a first reactive compound and a second reactive compound at a molar ratio between 1:1 and 1:10. The first reactive compound is a formamide selected from the group consisting of hydroxyformamides, di-formamides and polyformamides, and the second reactive compound is at least one compound having an epoxy equivalent between 100 and 800 g KOH per mole epoxy group, selected from a group of aromatic di-glycidylethers and aromatic poly-glycidylethers. The basic catalyst is at least one chemical agent selected from the group consisting of tertiary ammonium salts, tertiary aromatic amines, and tertiary heterocyclic amines. The solvent is at least one chemical compound selected from the group consisting of aliphatic alcohols, ether alcohols, diether, and tertiary amides.Type: GrantFiled: July 19, 1993Date of Patent: March 7, 1995Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Rainer B. Frings, Gerwald F. Grahe
-
Patent number: 5374769Abstract: Novel polycyanate compositions containing one or more mesogenic moieties as lateral substituents are disclosed which provide improved processability relative to polycyanates containing one or more mesogenic moieties in the main chain of the molecule. Molecular level ordering of the resulting thermosets is maintained much similar to that found thermosets of polycyanates which have one or more mesogenic moieties in the main chain.Type: GrantFiled: December 24, 1992Date of Patent: December 20, 1994Assignee: The Dow Chemical CompanyInventors: Robert E. Hefner, Jr., Jimmy D. Earls
-
Patent number: 5342904Abstract: Polymer modified adducts are prepared by (A) reacting (1) an epoxy resin having an average of more than one vicinal epoxide group with (2) a compound containing an average of two or more hydrogen atoms reactive with an epoxide group; and (B) partially vinylizing reacting the product from step (A); and (C) polymerizing the partially vinylized product from step (B) with (3) a polymerizable ethylenically unsaturated monomer; with the proviso that at least one of the components (1), (2) or (3) contain one or more mesogenic or rodlike moieties. These adducts are useful as epoxy resin curing agents.Type: GrantFiled: April 7, 1993Date of Patent: August 30, 1994Assignee: The Dow Chemical CompanyInventors: Robert E. Hefner, Jr., Jimmy D. Earls
-
Patent number: 5288802Abstract: Curable coating compositions are provided containing an amine group containing polyepoxide resin, an acetoacetate containing polyester having a weight average molecular weight of at least 1000, and a polyacrylate containing material. The amine group containing polyepoxide can be modified with a ketone and/or an aldehyde to form a ketimine and/or an aldimine containing polyepoxide. The compositions are useful as coatings, particularly as ambient or low temperature curable automotive refinish primer coatings having good corrosion resistance, adhesion to both substrate and other organic coatings, sandability and pot-life.Type: GrantFiled: January 25, 1993Date of Patent: February 22, 1994Assignee: PPG Industries, Inc.Inventors: David N. Walters, Cathy A. Kreutzer, Padmanabhan Sundararaman
-
Patent number: 5275853Abstract: Polyetheramines having improved barrier to oxygen are thermoplastic polymers having aromatic ether/amine repeating units in their backbones and pendant hydroxyl moieties. Such polyetheramines are prepared by reacting diglycidyl ethers of dihydric aromatic compounds such as the diglycidyl ether of bisphenol-A, hydroquinone, or resorcinol with amines having no more than two amine hydrogens per molecule, such as piperazine or ethanolamine.Type: GrantFiled: April 7, 1992Date of Patent: January 4, 1994Assignee: The Dow Chemical CompanyInventors: H. Craig Silvis, Jerry E. White
-
Patent number: 5266365Abstract: The present invention is directed to an epoxy-containing polymeric material having nonlinear optical properties, particularly a glycidyl amine polymer, and a process for making the nonlinear optical (NLO) epoxy-containing polymeric material including poling the polymeric material under high voltage at elevated temperature for a period of time to bring about orientation of the nonlinear optical functionalities in the polymer. The polymers have enhanced thermal stability and good NLO properties.Type: GrantFiled: February 28, 1992Date of Patent: November 30, 1993Assignee: The Dow Chemical CompanyInventors: John J. Kester, H. Craig Silvis
-
Patent number: 5248757Abstract: Compounds containing at least one cyanate group, at least one maleimide group and at least one rodlike mesogenic moiety are prepared by reacting one or more aminophenols containing one or more rodlike mesogenic moieties with a stoichiometric quantity of a maleic anhydride per amine group of said aminophenol and then cyanating the resulting phenolic functional maleimide.Type: GrantFiled: July 7, 1992Date of Patent: September 28, 1993Assignee: The Dow Chemical CompanyInventors: Robert E. Hefner, Jr., Jimmy D. Earls
-
Patent number: 5248758Abstract: Compounds containing at least one cyanate group, at least one maleimide group and at least one rodlike mesogenic moiety are prepared by reacting one or more aminophenols containing one or more rodlike mesogenic moieties with a stoichiometric quantity of a maleic anhydride per amine group of said aminophenol and then cyanating the resulting phenolic functional maleimide.Type: GrantFiled: July 7, 1992Date of Patent: September 28, 1993Assignee: The Dow Chemical CompanyInventors: Robert E. Hefner, Jr., Jimmy D. Earls
-
Patent number: 5219975Abstract: The present invention is directed to a process for the preparation of amines containing urethane and urea groups. The amines are produced by reacting A) isocyanate prepolymers containing urethane groups and in which the isocyanate groups are reversibly blocked with secondary monoamines with B) amines having molecular weights of from 60 to 500, which are at least difunctional and which have a total of at least two primary or secondary amino groups, with splitting off of the secondary monoamine. The invention is also directed to the amines so produced and to the use as a hardener for an epoxide resin.Type: GrantFiled: May 7, 1991Date of Patent: June 15, 1993Assignee: Bayer AktiengesellschaftInventors: Lutz Schmalstieg, Karl-Heinz Hentschel, Josef Pedain, Klaus Nachtkamp
-
Patent number: 5187253Abstract: Polyether urethane urea amines are prepared by reacting an isocyanate prepolymer of the formula ##STR1## with a polyamine of the formula ##STR2## wherein R is an optionally alkyl-substituted alkanediyl group of 2-12 carbon atoms, or an optionally alkyl-substituted cycloalkanediyl group of 4-14 carbon atoms;R.sup.1 is H, --CH.sub.2 --CH.sub.2 --CN, cycloalkyl, or 2,2,6,6-tetramethylpiperidin-4-yl;R.sup.2 is equivalent to R;R.sup.3 is (CH.sub.2 --CH.sub.2 --O).sub.m, [CH.sub.2 --CH(CH.sub.3)--O].sub.m, or [CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --O].sub.m ;n=1-5;x=2 or 3; andm=5-200;at an NCO:NH equivalent ratio of 1:2-12 at a temperature of 140.degree.-170.degree. C.Type: GrantFiled: July 23, 1991Date of Patent: February 16, 1993Assignee: Huels AktiengesellschaftInventor: Elmar Wolf
-
Patent number: 5175231Abstract: A urethane is formed in a new way, without requiring the use of isocyanates. The urethane is formed by reacting a compound containing a plurality of cyclocarbonate groups with a diamine in which the two amine groups have different reactivities with cyclocarbonate, so as to form a urethane oligomer with amine end groups. The urethane oligomer can then be reacted in several different ways to form polyurethane.Type: GrantFiled: April 17, 1992Date of Patent: December 29, 1992Assignee: Fiber-Cote CorporationInventors: Leonid Rappoport, Roger D. Brown
-
Patent number: 5162438Abstract: In an adhesive for printed circuit boards, whose main components are an epoxy resin and a polymer rubber, the improvement wherein the polymer rubber is a hydrogenated conjugated diene polymer rubber having not more than 100 ppm of metal content, not more than 100 ppm of ion content as determined by ion chromatography, and an iodine value of not more than 120, the ratio by weight of the hydrogenated conjugated diene polymer rubber to the epoxy resin in the adhesive being 35-75 weight % to 65-25 weight %.Type: GrantFiled: August 27, 1991Date of Patent: November 10, 1992Assignee: Nippon Zeon Co., Ltd.Inventor: Suguru Tsuji
-
Patent number: 5162439Abstract: In an adhesive for printed circuit boards, whose main components are an epoxy resin and a polymer rubber, the improvement wherein the polymer rubber is a hydrogenated conjugated diene polymer rubber having not more than 100 ppm of metal content, not more than 100 ppm of ion content as determined by ion chromatography, and an iodine value of not more than 120.Type: GrantFiled: November 17, 1989Date of Patent: November 10, 1992Assignee: Nippon Zeon Co., Ltd.Inventor: Suguru Tsuji
-
Patent number: 5153296Abstract: The invention relates to epoxide resin mixtures hardenable at room temperature, comprised of:(A) Polyepoxides with more than one epoxide group per molecular;(B) Aliphatic or cycloaliphatic polyamines with more than two active hydrogen atoms bound to the nitrogen of the amino groups;(C) A reaction product having mean m.w. 500-8,000 of:(c1) a polyalkylene ether polyol prepared from alkylene oxides and one member selected from the group consisting of di-functional alcohols, polyfunctional alcohols, or mixtures thereof, and(c2) an aliphatic or cycloaliphatic diisocyanate, wherein the NCO : OH ratio is 2:1, and wherein said reaction product is blocked with a certain sterically hindered piperidine derivative; and optionally(D) Customary fillers, pigments, reaction accelerators, and viscosity regulators.Type: GrantFiled: July 9, 1991Date of Patent: October 6, 1992Assignee: Huels AktiengesellschaftInventors: Rainer Gras, Elmar Wolf
-
Patent number: 5130351Abstract: Curable epoxy-amine coatings comprised of pigmented mixtures of reactive amine-functional curing agents and epoxy resins are substantially improved by being rendered thixotropic or pseudoplastic by the inclusion of at least about 0.05% by weight of a thixotropic additive selected from monocarboxylic organic acid, dicarboxylic organic acid, tricarboxylic organic acid, fatty acid or polymerized fatty acid.Type: GrantFiled: January 30, 1990Date of Patent: July 14, 1992Assignee: The Glidden CompanyInventor: Robert F. Golownia
-
Patent number: 5112934Abstract: The present invention is directed to an epoxy-containing polymeric material having nonlinear optical properties, particularly a glycidyl amine polymer, and a process for making the nonlinear optical (NLO) epoxy-containing polymeric material including poling the polymeric material under high voltage at elevated temperature for a period of time to bring about orientation of the nonlinear optical functionalities in the polymer. The polymers have enhanced thermal stability and good NLO properties.Type: GrantFiled: November 27, 1989Date of Patent: May 12, 1992Assignee: The Dow Chemical CompanyInventors: John J. Kester, H. Craig Silvis
-
Patent number: 5108575Abstract: Disclosed herein is a cathodic electrodepositable resin containing polyamine enamine. It has been discovered that reacting epoxy resins with polyamine enamine is a viable method of introducing amine functionality to the epoxy resin. The polyamine enamine route results in the desired high pH and stable dispersion in the electrocoat bath.Type: GrantFiled: August 8, 1990Date of Patent: April 28, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventors: Ding Y. Chung, Tapan K. Debroy
-
Patent number: 5093471Abstract: Novel mesogenic amine curing agent for reactive monomers, such as epoxy resins and diisocyanates, comprises a mesogenic moiety, a primary amine, and a flexible alkyl spacer connected between the mesogenic moiety and the primary amine and wherein the alkyl spacer is a saturated, linear alkyl group having from about one to about twenty carbon atoms. Novel mesogenic amine has the formula: ##STR1## where M is --O--, ##STR2## or --CH.sub.2 --, where R is --NO.sub.2 or --CN, andwhere x is 1 to 20.Novel mesogenic amine has a labile group subject to cross-linking and the formula: ##STR3## where K is ##STR4## where L is ##STR5## where M is --o--, ##STR6## or --CH.sub.2 --, where Z is cinnamate, an alkene having from one to ten carbons, an isocyanate, an alkoxy, or an alcohol having from one to ten carbons,where T is a cyano, a nitro or an alkyl group having from about one to ten carbons, andwhere X is 1 to 20.Type: GrantFiled: December 7, 1989Date of Patent: March 3, 1992Assignee: Kent State UniversityInventor: John L. West
-
Patent number: 5057557Abstract: Epoxy resins are modified by reaction with an acidified polytertiary amine-containing compound. These modified epoxy resins when cured result in products having improved properties.Type: GrantFiled: May 11, 1990Date of Patent: October 15, 1991Assignee: The Dow Chemical CompanyInventors: Duane S. Treybig, Pong S. Sheih, John M. McIntyre
-
Patent number: 5034434Abstract: Non-gelled amine-epoxide reaction products are obtained by co-reacting a secondary amine, a polyoxyalkylene polyamine, a polyepoxide and a monoepoxide. The products are cross-linkable and are useful in aqueous coating compositions, particularly when applied to a substrate by cathodic electrodeposition.Type: GrantFiled: October 18, 1989Date of Patent: July 23, 1991Assignee: Imperial Chemical Industries PLCInventors: Michael Beresford, Richard P. Redman
-
Patent number: 5026743Abstract: Non-gelled amine-epoxide reaction products are obtained by co-reacting a secondary amine, a polyoxyalkylene polyamine, a polyepoxide and optionally a monoepoxide. The products are crosslinkable and are useful in aqueous coating compositions, particularly when applied to a substrate by cathodic electrodeposition.Type: GrantFiled: October 18, 1989Date of Patent: June 25, 1991Assignee: Imperial Chemical Industries PLCInventors: Michael P. Beresford, Richard P. Redman
-
Patent number: 5025077Abstract: A glue composition comprises a heat-hardenable resin, urea and possibly one or several glue additives, and is characterized by the presence of an additional gluing compound is polyol having a functionality of at least equal to three. This glue can be used for mineral fibers in the manufacture of insulation products having improved properties.Type: GrantFiled: July 28, 1988Date of Patent: June 18, 1991Assignee: Isover Saint-GobainInventors: Serge Tetart, Bernard Lericque
-
Patent number: 5025067Abstract: An epoxy resin comprising an active hydrogen compound having at least three active hydrogen atoms capable of reacting with an epoxy group in its molecule or butadine or isoprene as a main monomer is modified with an oligomer having on average at least 1.5 equivalents of active hydrogen capable of reacting with an epoxy group in its molecule. An epoxy resin modified with a bisphenol and a compound having active hydrogen or acid anhydride groups capable of reacting with an epoxy group is also provided. A toner containing the epoxy resin as a binder is useful in electrostatography.Type: GrantFiled: November 16, 1988Date of Patent: June 18, 1991Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Yohzoh Yamamoto, Goro Suzuki, Hideo Nakamura, Kiyomi Yasuda
-
Patent number: 5021537Abstract: A coating composition is provided comprising an epoxy resin, a polyacetoacetate, a curing agent for the epoxy resin, and an optional organic solvent. The presence of the polyacetoacetate permits the preparation of a fast-drying high-solids coating formulation.Type: GrantFiled: April 27, 1990Date of Patent: June 4, 1991Assignee: Shell Oil CompanyInventors: Charles J. Stark, Rita D. Pietruszka
-
Patent number: 5017676Abstract: A method for curing a 1,2-epoxy resin by mixing the resin with an effective amount of an amine curing agent under epoxy resin curing conditions and accelerating the cure with acetoacetoxyethyl methacrylate (AAEM).Type: GrantFiled: December 18, 1989Date of Patent: May 21, 1991Assignee: Texaco Chemical CompanyInventor: Michael Cuscurida
-
Patent number: 4980398Abstract: Disclosed herein is a cathodic electrodepositable resin containing polyamine enamine. It has been discovered that reacting epoxy resins with polyamine enamine is a viable method of introducing amine functionality to the epoxy resin. The polyamine enamine route results in the desired high pH and stable dispersion in the electrocoat bath.Type: GrantFiled: February 23, 1990Date of Patent: December 25, 1990Assignee: E. I. du Pont de Nemours and CompanyInventors: Ding Y. Chung, Tapan K. Debroy
-
Patent number: 4935478Abstract: Hot-curable compositions of matter containing (a) an unsaturated imide of the formula I ##STR1## (b) a benzaldehyde derivative of the formula II ##STR2## in which for example M=2, n=zero, o=1 R.sup.1, R.sup.2 and R.sup.3 are each hydrogen and R is 4,4'diphenylmethane are suitable for the production of mouldings having excellent thermostability and resistance to thermal ageing.Type: GrantFiled: July 29, 1988Date of Patent: June 19, 1990Assignee: Ciba-Geigy CorporationInventor: Andreas Kramer
-
Patent number: 4927865Abstract: Anthraquinones of formula I ##STR1## wherein X is the group --CR.sup.2 R.sup.3 --, where R.sup.2 is H, --CH or C.sub.1 -C.sub.5 -alkyl and R.sup.3 is H or --CN, R.sup.1 is H or C.sub.1 -C.sub.5 -alkyl and R is a direct bond or linear or branched C.sub.1 -C.sub.18 -alkylene which, alone or together with the --CR.sup.2 R.sup.3 -- group, can be interrupted by one or more --O-- when R.sup.2 and/or R.sup.3 are not --CN, and curable compositions comprising (a) an epoxy resin, (b) a hardener if necessary, (c) an anthraquinone of formula I and (d) an amino alcohol. The cured compositions are photosensitive and are suitable for the preparation of coatings and metallic images by electroless metal deposition.Type: GrantFiled: May 12, 1989Date of Patent: May 22, 1990Assignee: Ciba-Geigy CorporationInventors: Rudolf Duthaler, Jurgen Finter, Walter Fischer, Visvanathan Ramanathan
-
Patent number: 4891408Abstract: Novel tetraglycidates have the formula ##STR1## wherein R.sup.1 and R.sup.2 are independently hydrogen, alkyl of 1 to 8 carbon atoms, perfluoroalkyl, or cycloalkylidene of 5 to 7 carbon atoms. Epoxy resin systems exhibiting good tensile properties and moisture sensitivity can be made by copolymerizing the tetraglycidates with a polyamine curing agent. Prepregs can be made by combining the epoxy resin systems with a fiber reinforcement. The epoxy resin system may include a co-epoxide.Type: GrantFiled: August 13, 1987Date of Patent: January 2, 1990Assignee: Amoco CorporationInventor: Richard H. Newman-Evans
-
Patent number: 4861810Abstract: The present invention relates to a new thermoplastic polymer composition having the processing characteristics of a thermosetting polymer along with an improved balance of properties including improved modulus/glass transition temperature/toughness balance. These new polymer compositions are prepared by reacting certain amine compounds with certain diepoxide compounds to form linear units which are lightly crosslinked. Also disclosed and claimed are processes for preparing such compositions, cured compositions and end-use applications.Type: GrantFiled: August 15, 1988Date of Patent: August 29, 1989Assignee: Shell Oil CompanyInventor: Kenneth C. Dewhirst
-
Patent number: 4851485Abstract: Non-fluorinated epoxy resins of a known type are cross-linked by means of polyfunctional fluoroalkanes containing groups which are reactive with the epoxy groups and/or with the hydroxy groups present in the starting resin. The cross-linked products so obtained, having a fluorine content not higher than 15% by weight, and preferably ranging from 1% to 5%, exhibit a complex of properties which are typical of the corresponding fluorinated resins having a much higher fluorine content; in particular, oil- and water-repellency, resistance to hydrolysis and to solvents, and minimum absorption of water.Type: GrantFiled: June 1, 1988Date of Patent: July 25, 1989Assignee: Ausimont S.p.A.Inventors: Alberto Re, Claudio Tonelli, Vito Tortelli
-
Patent number: 4835225Abstract: Modified advanced epoxy resins are prepared by reacting (A) and advanced epoxy resin prepared by reacting (1) an epoxy resin having at least one aromatic ring, an average of more than one, but not more than abotu 2 vicinal epoxy groups per molecule and which contains at least one oxyalkylene or substituted oxyalkylene group per molecule; with (2) a dihydric phenol; with (B) a monoamine.Type: GrantFiled: January 13, 1988Date of Patent: May 30, 1989Assignee: The Dow Chemical CompanyInventors: John L. Massingill, Jr., Raul A. Pabon, Jr.
-
Patent number: 4795787Abstract: Novel curing agents for synthetic resins containing groups capable of ester formation or amide formation and, optionally polymerizable double bonds which are Michael addition products of monocarboxylic or dicarboxylic acid esters, capable of undergoing Michael addition, with compounds containing at least two double bonds capable of undergoing Michael addition, the two components being reacted in such ratios that the Michael addition product contains at least one ester group capable of transesterification and/or transamidation and at least one polymerizable double bond.Type: GrantFiled: October 5, 1987Date of Patent: January 3, 1989Assignee: Hoechst AGInventor: Gerd Walz
-
Patent number: 4772680Abstract: The invention provides a liquid coating composition curable at ambient temperature comprising an acetoacetate groups-containing addition polymer having a number average molecular weight of 1000-100,000, a glass transition temperature of 250.degree.-370.degree. K., a hydroxyl number of 0-200 and a content of acetoacetate groups of 3,5-45% by weight, the acetoacetate groups being present as ester of hydroxyalkyl acrylate, hydroxyalkyl methacrylate or allyl alcohol structural units, and a polyamine having primary and/or secondary amino groups and blocked with an aldehyde or ketone. A process for coating a substrate with such composition is also provided.Type: GrantFiled: March 26, 1986Date of Patent: September 20, 1988Assignee: Akzo N.V.Inventors: Arie Noomen, Paul M. Vandevoorde, Jaap M. Akkerman
-
Patent number: 4772643Abstract: A crosslinked and chain extended urethane-epoxy copolymer coating with high performance properties typical of two part urethane solution coatings results from cure at ambient temperatures (e.g. 70.degree. F.) when the two aqueous systems are merely mixed, stirred and spread at the site. One aqueous system is a dispersion of polyepoxides. The other aqueous system is a primary amine-terminated urethane oligomer in which no less than about 25% and no more than about 40% of the amine functionality is substituted by a salt of a volatile acid which aids dispersion of the oligomer. Minimal organic solvent is present, and as the acid evaporates, the primary amine is restored for linking with the epoxy groups.Type: GrantFiled: December 11, 1987Date of Patent: September 20, 1988Assignee: Tennant CompanyInventors: G. Dale Ernst, Alan R. Schuweiler
-
Patent number: 4771087Abstract: The invention discloses crosslinking components for hydroxy and/or primary and/or secondary amine groups containing cationic resins which can be used as binders for stoving paints, particularly for cathodically depositable electrodeposition paints. The crosslinking components are obtained through partial transesterification of transamidation of oligomeric KNOEVENAGEL-reaction products of C-H-active esters and carbonyl compounds with polyols or amines. The products can also be obtained through partial transesterification or transamidation of the C-H-active esters and subsequent KNOEVENAGEL-reaction.Type: GrantFiled: May 11, 1987Date of Patent: September 13, 1988Assignee: Vianova Kunstharz A.G.Inventors: Rudolf Schipfer, Gerhard Schmolzer, Wolfgang Daimer
-
Patent number: 4767555Abstract: Aqueous fluids are thickened with epoxide modified polyoxyalkylene diamines. The polyoxyalkylene diamines are of the formula:H.sub.2 NCH(CH.sub.3)CH.sub.2 O(CH.sub.2 CH(R)O).sub.x CH.sub.2 CH(CH.sub.3)NH.sub.2wherein:R is methyl or hydrogen andx is a number selected to give the diamine a molecular weight of 3000 to 9000.The epoxide is a hydrophobic monoepoxide, diepoxide or mixture thereof.The aqueous fluid optionally incorporate ethylene glycol. They are useful for water/glycol base hydraulic fluids, cosmetics and surfactants.Type: GrantFiled: April 10, 1987Date of Patent: August 30, 1988Assignee: Texaco Inc.Inventor: Edward C. Y. Nieh
-
Patent number: 4764579Abstract: An adhesive mixture comprising a multiplicity of contiguous deposits of a curable but uncured fluid resin and a fluid curing agent for the resin, said deposits being separated by a thin flexible barrier film of cured resin resulting from the interaction between the resin and curing agent.Type: GrantFiled: July 7, 1987Date of Patent: August 16, 1988Assignee: The Oakland CorporationInventor: Richard B. Wallace
-
Patent number: 4762903Abstract: The invention relates to water-dilutable binders for cationic electrocoating finishes, the said binders containing latent primary amino groups. In order to prepare the binders, an epoxy resin is reacted with a polyamine, which in addition to a sterically hindered primary amino group also contains at least one primary amino group blocked by reaction with a ketone or aldehyde, and, if appropriate, further primary or secondary amines.Type: GrantFiled: January 23, 1987Date of Patent: August 9, 1988Assignee: BASF Lacke & Farben AGInventors: Michael Geist, Gunther Ott, Georg Schon
-
Patent number: 4737530Abstract: The invention provides a water-reducible coating composition comprising an epoxy resin, an amino group-containing curing agent for the epoxy resin and a formic acid ester having a solubility of at least 0.2 g in 100 g of water of a temperature of 20.degree. C., with the exception of tert. butyl formiate.Type: GrantFiled: April 28, 1987Date of Patent: April 12, 1988Assignee: Akzo N.V.Inventors: Cornelis A. M. Hoefs, Pieter Oosterhoff
-
Patent number: 4732961Abstract: A spherical particulate adhesive comprising particles of a partially amine cured epoxy resin as the main component and having an average particle size of 0.3 to 500 .mu.m, in which particles of the epoxy resin contain an at least partially compatible agent homogeneously in the interior thereof. This adhesive is a heat-curable adhesive and has a very high bonding force. After bonding, the adhesive is chemically stable and is especially preferably used for bonding in the field of electronic material, such as liquid crystal display devices, which are apt to be degraded by impurities and for which high-precision bonding is required.Type: GrantFiled: September 18, 1986Date of Patent: March 22, 1988Assignee: Toray Industries, Inc.Inventor: Koichiro Oka
-
Patent number: 4704437Abstract: Process for the preparation of soluble synthetic resins which are free from monomeric amines and have NH bonds by reaction of (A) compounds which carry epoxide groups with (B) polyamines, in which the reaction is carried out in a homogeneous phase system in the absence or presence of resin solvents, the polyamine (B) being employed in excess and the resulting reaction product being freed from the unreacted polyamine portions by circulatory distillation in the presence of a resin solvent with the addition of water and supply of heat. The synthetic resins thus prepared are employed as self-crosslinking binders and in combination with crosslinking agents or in modified form for coatings or impregnations.Type: GrantFiled: October 28, 1986Date of Patent: November 3, 1987Assignee: Hoechst AGInventor: Hans-Joachim Kiessling
-
Patent number: 4699937Abstract: A synthetic resin carrying basic nitrogen groups, its preparation, coating materials prepared from this resin, and a process for cathodic electrocoating.This synthetic resin is obtained by reacting(A) an epoxy resin which(B) a diketimine of a diprimary amineand, if required,(C) with a secondary amine, which may additionally contain a tertiary amino group, with a ketimine of a primary monoamine and/or with a ketimine of a primary/tertiary diamine,a diketimine obtained from(B.sub.1) a ketone and(B.sub.2) a branched aliphatic diprimary diamine of 5 to 9 carbon atoms and/or(B.sub.3) one or more diaminodiamides which are obtained by condensation of 2 moles of diamine (B.sub.2) and 1 mole of a dicarboxylic acidbeing employed as component (B).After protonation with an acid, this synthetic resin is useful as a binder for cathodic electrocoating.Type: GrantFiled: December 12, 1985Date of Patent: October 13, 1987Assignee: BASF Farben+Fasern AktiengesellschaftInventors: Werner Loch, Eberhard Schupp, Rolf Osterloh, Klaas Ahlers
-
Patent number: 4689390Abstract: A thermosetting epoxy resin composition of one pack type is provided which contains as indispensable constituents (I) an epoxy resin containing more than one adjacent epoxy groups on the average in the molecule and (II) a curing amount or curing-accelerating amount of a compound obtained by reacting (a) a specified amine/epoxy adduct with (b) phenolic resin(s) and/or polyhydric phenol compound(s) in a weight ratio of (a) to (b) of 1/0.1 to 1/0.8. The composition of the present invention has excellent storage stability and it is curable at a relatively low temperature to form a cured product having excellent mechanical strength, adhesiveness and water resistance.Type: GrantFiled: March 14, 1986Date of Patent: August 25, 1987Assignees: Asahi Denka Kogyo K.K., A.C.R. Co., Ltd.Inventors: Hiroshi Suzuki, Yutaka Asakawa, Akira Matsui
-
Patent number: 4686272Abstract: An adhesive mixture comprising a multiplicity of contiguous deposits of a curable but uncured fluid resin and a fluid curing agent for the resin, said deposits being separated by a thin flexible barrier film of cured resin resulting from the interaction between the resin and curing agent.Type: GrantFiled: July 10, 1985Date of Patent: August 11, 1987Assignee: The Oakland CorporationInventor: Richard B. Wallace
-
Patent number: 4677182Abstract: Ionene elastomers are prepared by reaction of polymeric diamines and certain dihalide linking agents. These elastomers have utility in coating compositions, adhesive compositions, and in the fabrication of elastomeric articles. Certain novel dihalide linking agents are also claimed.Type: GrantFiled: November 25, 1985Date of Patent: June 30, 1987Assignee: Minnesota Mining and Manufacturing Co.Inventors: Charles M. Leir, John E. Stark
-
Patent number: 4675374Abstract: Solventless polymeric compositions suitable for coatings and moldings are formed by the addition reaction product of a first component comprising mono, di or polyamines, or an adduct of mono, di or polyamines with mono, di or polyfunctional acrylates and/or epoxides and a second component comprising mono, di or polyacrylates or mixtures with mono, di or polyepoxides.Type: GrantFiled: July 18, 1985Date of Patent: June 23, 1987Inventor: Gus Nichols
-
Patent number: 4661569Abstract: In a process of polymerizing ethylenically unsaturated compounds by polymerization of ethylenically unsaturated monomers in the presence of a free radical-forming initiator system and optionally customary protective colloids and/or emulsifiers and optional known additives in a reactor whose surfaces contact the reaction components, the improvement comprising providing the reactor surfaces with a coating that at least suppresses polymer deposit formation without effecting the color and quality of the polymer.Type: GrantFiled: February 12, 1985Date of Patent: April 28, 1987Assignee: Wacker-Chemie GmbHInventors: Willi Kleine, Werner Frey, Albrecht Daweritz
-
Patent number: 4644036Abstract: Michael addition products of monocarboxylic or dicarboxylic acid esters, capable of undergoing Michael addition, with compounds containing double bonds capable of undergoing Michael addition are suitable for use as a curing component for synthetic resins containing groups capable of amide formation and/or ester formation with carboxylic acids. In particular, the Michael addition products of acetoacetic esters or malonic esters with esters, amides or urea derivatives of .alpha., .beta.-unsaturated monocarboxylic or dicarboxylic acids are used. The structure and the functionality of the curing component can be varied in many ways. It can be attached directly to the synthetic resin molecule, so that self-curing synthetic resins are obtained.Type: GrantFiled: April 26, 1984Date of Patent: February 17, 1987Assignee: Hoechst AktiengesellschaftInventors: Gerd Walz, Ernst-August Theiling