Blocked Isocyanate Reactant Patents (Class 525/124)
  • Patent number: 6696539
    Abstract: A blocked isocyanate group-containing resin composition and a thermosetting resin composition using the same that comprise a resin (C) obtainable by modifying a resin (A) having two or more blocked isocyanate groups of a specific molecular structure in one molecule with a specific monohydric alcohol (B), and by replacing the substituent of the blocked isocyanate groups with a group having a larger number of carbon atoms, thereby lowering solubility parameter value. The compositions exhbit good storage stability and good compatibility with base resins for paint.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: February 24, 2004
    Assignee: Kansai Paint Co., Ltd
    Inventors: Masami Kobata, Hiromi Harakawa, Hidekazu Ishii
  • Patent number: 6689839
    Abstract: Thermoset paint compositions with which paint films can be formed which have excellent acid resistance, abrasion resistance and adhesion, and with which the water repelling properties and staining resistance can be retained for a longer period of time than with the conventional fluorine resin based paint films, are obtained. Constitution: Thermoset paint film compositions which contain (a) from 20 to 80% by weight of fluorine containing copolymer, comprising fluoro-olefin and vinyl based monomer, of which the solubility parameter value is from 9.0 to 10.5 and the hydroxy group value is within the range from 60 to 150 mgKOH/g; (b) from 20-80% by weight of vinyl based (co)polymer, comprising vinyl based monomer which contains at least 10% by weight of monomer which can be repesented by formula (1), of which the solubility parameter is from 9.0 to 10.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: February 10, 2004
    Assignee: BASF Coatings AG
    Inventors: Takehi Hayakawa, Kishio Shibato, Yasuhiro Monma
  • Patent number: 6657007
    Abstract: Clearcoat coating composition for automotive exterior coatings with improved intercoat adhesion to a subsequently applied coating layer and improved flexibility contains (a) a first vinyl copolymer prepared from a monomer mixture including no more than about 35% by weight of nonfunctional monomers that has carbamate functionality and hydroxyl functionality, at least part of the hydroxyl functionality being on monomer units including an optionally branched alkyl group having at least about six carbon atoms; (b) a second vinyl copolymer having hydroxyl functionality, preferably primary hydroxyl functionality; and (c) a curing agent component that includes at least an aminoplast curing agent and optionally a polyisocyanate curing agent. The polyisocyanate curing agent is preferably blocked with a blocking agent that volatilizes during the cure reaction, regenerating a reactive isocyanate group.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: December 2, 2003
    Assignee: BASF Corporation
    Inventors: John A. Gilbert, Donald H. Campbell, Vincent Cook
  • Patent number: 6652916
    Abstract: The invention relates to a coating material containing a binding agent and a cross-linking agent as well as a thixotropic agent based on ureas and/or ureas derivatives, whereby the coating material additionally contains a wetting agent that improves the wettability of the thixtropic agent.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: November 25, 2003
    Assignee: BASF Coatings AG
    Inventors: Hubert Baumgart, Guido Schulze-Finkenbrink
  • Publication number: 20030216515
    Abstract: A film-forming composition that includes a stable aqueous dispersion of a mixture of a polyester polyol and a carboxylic acid-containing acrylic polymer polyol and a crosslinking agent having functional groups reactive with hydroxyl groups. The weight ratio of polyester polyol to acrylic polymer polyol is in the range of 10:90 to 30:70. The crosslinking agent is one or more blocked isocyanates or aminoplasts. The equivalent ratio of hydroxyl groups to reactive functional groups on the crosslinking agent is from 0.8:1 to 1.7:1. The film forming composition can be used in multi-layer composite coating compositions that include a base coat layer and a substantially pigment-free topcoat deposited over at least a portion of the base coat layer, the topcoat composition including the present film-forming composition.
    Type: Application
    Filed: May 20, 2002
    Publication date: November 20, 2003
    Inventors: Shanti Swarup, Thi Bach-Phuong Dau
  • Patent number: 6641923
    Abstract: A weldable curable coating composition with improved intercoat adhesion is disclosed comprising a resinous binder comprising a polymer (A) with functional groups and a crosslinking agent with functional groups reactive with those of polymer (A); an electroconductive pigment; and an adhesion promoting compound comprising boron containing compounds. In an alternative embodiment, the adhesion promoting compound may comprise siloxane polymer reacted with aluminates, titanates, zirconates, silicates, siloxanes, silanes, and mixtures thereof, wherein each component is different.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: November 4, 2003
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Richard J. Sadvary, Lawrence G. Anderson, Sherry M. Gaggini, Dennis W. Jones
  • Patent number: 6639016
    Abstract: The invention provides an improved method of graft polymers comprising providing an emulsion comprising at least one or more first monomer (a), at least one or more second monomer (b), and at least one graft material (c). The emulsion is subjected to conditions such that it undergoes simultaneous free radical polymerization and grafting. One or more first monomer (a) is unsaturated and is free of any functional groups reactable with a functional group Fb of monomer (b) or a functional group Fc of graft material (c). Monomer (a) may optionally comprise a functional group Fa which is not reactive with either functional group Fb or Fc. Monomer (b) is unsaturated and comprises a functional group Fb reactive with functional group Fc. Graft material (c) comprises a compound free of unsaturation and comprising a functional group Fc reactive with functional group Fb, and a graft moiety.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: October 28, 2003
    Assignee: BASF Corporation
    Inventor: Walter H. Ohrbom
  • Publication number: 20030198796
    Abstract: The present invention relates to a water-dispersible crosslinker composition containing
    Type: Application
    Filed: January 14, 2003
    Publication date: October 23, 2003
    Inventors: Thorsten Rische, Karin Naujoks, Juergen Meixner, Thomas Feller, Eberhard Konig
  • Patent number: 6620884
    Abstract: A process for producing scratch-resistant coatings, especially scratch-resistant multicoat finishes, involving use of coating compositions which after curing have a storage modulus E′ in the rubber-elastic range of at least 107.5 Pa and a loss factor tan &dgr; at 20° C. of at least 0.05, the storage modulus E′ and the loss factor having been measured by dynamic mechanical thermoanalysis on free films having a film thickness of 40±10 &mgr;m, and comprise as binders one or more polyacrylate resins having a hydroxyl number of from 100 to 240, an acid number of from 0 to 35, and a number-average molecular weight of from 1500 to 10,000, and as crosslinkers one or more free or blocked isocyanates and/or triazine-based components which crosslink with the hydroxyl groups of the binder to form ether and/or ester structures.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: September 16, 2003
    Assignee: BASF Coatings AG
    Inventors: Ulrike Röckrath, Peter Betz, Fritz Bartol, Georg Wigger, Hubert Baumgart
  • Patent number: 6610775
    Abstract: A water dispersion type water and oil repellent composition capable of imparting highly long-lasting water and oil repellency to fibers of various materials. It comprises a polymer which essentially contains polymerized units of a (meth)acrylate having a polyfluoroalkyl group and polymerized units of a polymerizable monomer which essentially contains a polymerizable unsaturated group and a hydroxyl group and in which the polymerizable unsaturated group and the hydroxyl group are connected to each other through 7 or more covalent bonds, a surfactant which contains a nonionic surfactant in an amount of from 60 to 100 wt %, an aqueous medium, and a cross-linkable compound.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: August 26, 2003
    Assignee: Asahi Glass Company, Limited
    Inventors: Kazuya Oharu, Yuriko Kaida, Toyomichi Shimada, Takashige Maekawa
  • Patent number: 6602972
    Abstract: Self crosslinking polyurethane comprising lateral or terminal ethenylarylene groups, produced by reacting a polyurethane pre-polymer with an adduct, obtained by reacting an ethenylarylene mono-isocyanate with a compound containing hydroxyl groups or amino groups such that at least one group that is reactive to isocyanate remains in the adduct. Also, a self crosslinking graft copolymer containing at least one (meth)acrylate copolymer and at least one polyurethane produced by dispersing at least one self crosslinking olefinically unsaturated polyurethane comprising lateral or terminal ethenylarylene groups and blocked isocyanate groups in an aqueous medium and by radical copolymerization of a mixture of a monomer comprising at least one functional group that is reactive to isocyanate with a monomer that can be copolymerised with the mixture.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: August 5, 2003
    Assignee: BASF Coatings AG
    Inventors: Stephan Schwarte, Egon Wegner, Harald Angermüller
  • Patent number: 6596817
    Abstract: Low molar mass polyester polyols having a weight average molar mass Mw of up to 3500 g/mol, hydroxyl numbers of from 80 to 280 mg/g and acid numbers of from 5 to 40 mg/g, comprising structural units derived from aliphatic monocyclic or polycyclic compounds containing at least two hydroxyl and/or epoxide groups and at least one heteroatom, aliphatic acyclic or cyclic polyhydroxy compounds containing three or more hydroxyl groups per molecule, linear or branched aliphatic dihydroxy compounds and aliphatic cyclic polycarboxylic acids, alone or in a mixture with low molar mass acrylate copolymers, may be processed to give coating materials which dry rapidly, and result in defect-free surfaces.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: July 22, 2003
    Assignee: Solutia Austria GmbH
    Inventors: Ulrich Epple, Ulrike Kuttler, Adolf Labenbacher
  • Patent number: 6593435
    Abstract: The invention relates to methods for producing storage-stable, latent-reactive layers and powders of surface-deactivated, solid polyisocyanates and dispersions or aqueous solutions of isocyanate reactive polymers, which can be used as adhesives and coverings. Said dispersions, suspensions or aqueous solutions can applied to a substrate in an appropriate form. Water can then be eliminated at a temperature inferior to the reaction temperature of the isocyanates and this operation can take place at a temperature above the softening temperature of the polymers. This process produces, at ambient temperature, dry and substantially water free layers which are storage stable and can react with the polymers at the polyisocyanate reaction temperature.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: July 15, 2003
    Assignee: Bayer AG
    Inventor: Thomas Abend
  • Patent number: 6586521
    Abstract: Aqueous solutions or dispersions of copolymers A) a process of making them and their use in binder compositions. Copolymers A) containing a hydroxy-functional, hydrophobic copolymer I) containing 30 to 85% by weight of (meth)acrylic acid esters having C1 to C18 hydrocarbon radicals in the alcohol portion, aromatic vinyl compounds and/or vinyl esters and 5 to 45% by weight of hydroxy-functional monomers; a hydroxy- and carboxy-functional, hydrophilic-hydrophobic copolymer II) containing 4 to 20% by weight of (meth)acrylic acid esters having C1 to C18 hydrocarbon radicals in the alcohol portion, aromatic vinyl compounds and/or vinyl esters, 4 to 15% by weight of hydroxy-functional monomers and 0.8 to 3.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: July 1, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Harald Blum, Wieland Hovestadt, Karl Ludwig Noble
  • Patent number: 6583214
    Abstract: An aqueous coating material curable thermally and/or with actinic radiation, comprising A) at least one ionically and/or nonionically stabilized polyurethane which is saturated, unsaturated and/or grafted with olefinically unsaturated compounds and is based on bis(4-isocyanatocyclohexyl)methane with a trans/trans content of up to 30% by weight, based on the diisocyanate, as binder and B) at least one crosslinking agent.
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: June 24, 2003
    Assignee: BASF Coatings AG
    Inventors: Karl Haeberle, Heinz-Peter Rink, Bernhard Lettmann
  • Patent number: 6583224
    Abstract: Thermosetting polymers and the electrical laminates made therefrom are disclosed. The polymer comprises the cross-linked product of: a) one or more ethylenically unsaturated aromatic monomers, optionally containing a halogenated monomer to impart fire retardation, and b) a vinyl-terminated polybutadiene or butadiene-styrene copolymer containing either a urethane or an ester group. It has been discovered that an unexpected combination of thermal, electrical, and mechanical properties are obtained from the composition recited herein. The composition is ideally suited as a matrix polymer for electrical substrate applications.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: June 24, 2003
    Assignee: GIL Technologies
    Inventors: Scott Alan Lane, Donald Clyle Rollen, Timothy Wayne Austill
  • Publication number: 20030114578
    Abstract: The invention relates to novel aqueous coating agents for baking enamels, in particular for producing hard, elastic fillers with a high solid content, for coating car bodies.
    Type: Application
    Filed: August 27, 2002
    Publication date: June 19, 2003
    Inventors: Christian Wamprecht, Beate Baumbach, Heino Muller, Joachim Petzoldt
  • Patent number: 6573329
    Abstract: Microsuspension polymers are prepared by (1) dispersing a mixture of components A1 to A4, a1: from 0.1 to 60% by weight of at least one free-radically polymerizable monomer A1 containing at least one functional group which is reactive with isocyanate groups (isocyanate-reactive functional group), a2: from 40 to 99.9% by weight of at least one further free-radically polymerizable monomer A2 containing no isocyanate-reactive functional group, a3: from 0 to 20% by weight of 1,1-diphenylethene or 1,1-diphenylethane A3, a4: from 0.1 to 100% by weight of at least one blocked polyisocyanate A4, in water using a protective colloid to form a dispersion having an average particle diameter of from 0.08 to 100 &mgr;m, and (2) polymerizing the droplets using from 0.1 to 20% by weight of at least one free-radical polymerization initiator, up to a conversion of at least 50% by weight, the amounts being based on the total weight of components A1 and A2, which gives 100% by weight.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: June 3, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Graham Edmund Mc Kee, Maximilian Bendix, Peter Barghoorn, David Christie
  • Patent number: 6569943
    Abstract: Thermosetting polymers and the electrical laminates made therefrom are disclosed. The polymer comprises the cross-linked product of: a) one or more ethylenically unsaturated aromatic monomers, optionally containing a halogenated monomer to impart fire retardation, and b) a vinyl-terminated polybutadiene or butadiene-styrene copolymer containing either a urethane or an ester group. It has been discovered that an unexpected combination of thermal, electrical, and mechanical properties are obtained from the composition recited herein. The composition is ideally suited as a matrix polymer for electrical substrate applications.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: May 27, 2003
    Assignee: Gil Technologies
    Inventors: Scott Alan Lane, Donald Clyle Rollen, Timothy Wayne Austill
  • Patent number: 6566448
    Abstract: Thermosetting polymers and the electrical laminates made therefrom are disclosed. The polymer comprises the cross-linked product of: a) one or more ethylenically unsaturated aromatic monomers, optionally containing a halogenated monomer to impart fire retardation, and b) a vinyl-terminated polybutadiene or butadiene-styrene copolymer containing either a urethane or an ester group. It has been discovered that an unexpected combination of thermal, electrical, and mechanical properties are obtained from the composition recited herein. The composition is ideally suited as a matrix polymer for electrical substrate applications.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: May 20, 2003
    Assignee: Gil Technologies
    Inventors: Scott Alan Lane, Donald Clyle Rollen, Timothy Wayne Austill
  • Patent number: 6517905
    Abstract: A thermosetting composition that includes: (a) a crosslinking agent having at least two functional groups reactive with hydroxyl groups; and (b) a non-gelled, hydroxyl functional polymer prepared by atom transfer radical polymerization. The polymer contains at least one of the following polymer chain structures: —{(M)p—(G)q}x—  or —{(G)q—(M)p}x— wherein M is a residue, that is free of hydroxyl functionality, of at least one monomer; G is a residue, that has hydroxyl functionality, of at least one monomer; p and q represent average numbers of residues occurring in a block of residues in each polymer chain structure; and p, q, and x are each independently selected for each structure such that the hydroxyl functional polymer has a number average molecular weight of at least 250.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: February 11, 2003
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Daniela White, James B. O'Dwyer, Dennis A. Simpson
  • Publication number: 20030013811
    Abstract: A carboxy- and hydroxy-finctional acrylic polymer cross-linked with a polyisocyanate is used as primer for PVC-plastisol. It is particularly useful for steel substrates, more particularly in coil coating.
    Type: Application
    Filed: November 2, 1999
    Publication date: January 16, 2003
    Inventors: MICHEL BELLADONE, NAZZARIO BONFITTO
  • Patent number: 6500548
    Abstract: Transparent or pigmented powder coating materials with crosslinkers comprising hydroxyalkylamides and blocked nonaromatic polyisocyanates.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: December 31, 2002
    Assignee: Degussa AG
    Inventor: Andreas Wenning
  • Publication number: 20020197411
    Abstract: A refinish basecoat composition includes at least one pigment and an hydroxyl-functional acrylic polymer. The acrylic polymer has a number average molecular weight of at least about 6000 and is polymerized using at least about 45% by weight cycloaliphatic monomer, based on total monomer weight polymerized. A mixer system that can be used to prepare the refinish basecoat has a plurality of color components, each independently including at least one pigment dispersed by the hydroxyl-functional acrylic polymer, and a pigment-free component containing the hydroxyl-functional acrylic polymer.
    Type: Application
    Filed: June 21, 2001
    Publication date: December 26, 2002
    Inventors: Emerson Keith Colyer, Douglas H. Larrow
  • Patent number: 6491986
    Abstract: Transparent or pigmented powder coating materials with crosslinkers comprising hydroxyalkylamides and polyisocyanates containing uretdione groups.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: December 10, 2002
    Assignee: Degussa AG
    Inventor: Andreas Wenning
  • Patent number: 6489396
    Abstract: The present invention provides a novel (meth)acrylate ester-based resin composition which, for example, exhibits various good properties such as weather resistance, heat resistance, water resistance, acid resistance, alkali resistance, warm water resistance, impact resistance, processability, flexibility, hardness, elongation, transparency, luster, fleshy property, mirroring property, pigment dispersibility, and driability when being used, for example, as crosslinking type paints, adhesives, pressure sensitive adhesives, and fiber-processing materials, and has so low a resin viscosity as to be utilizable as a resin for coping with environmental pollution of such as low-VOC paints.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: December 3, 2002
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Kazuhiko Nakamura, Yoshiyuki Yokota, Kunio Takahashi, Masaya Yoshida
  • Patent number: 6482475
    Abstract: A thermosetting composition comprising a co-reactable solid, particulate mixture of (a) capped polyisocyanate crosslinking agent, e.g., a trimer of 1-isocyanato-3,3,5 -trimethyl-5-isocyanatomethylcyclohexane capped with e-caprolactam or 1H-2,5-dimethyl pyrazole, and (b) hydroxy functional polymer, is described. The hydroxy functional polymer is prepared by atom transfer radical polymerization and has well defined polymer chain architecture and polydispersity index of less than 2.5. The thermosetting compositions of the present invention have utility as powder coatings compositions.
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: November 19, 2002
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Karen A. Barkac, Simion Coca, James R. Franks, Kurt A. Humbert, Paul H. Lamers, Roxalana L. Martin, James B. O'Dwyer, Kurt G. Olson, Daniela White
  • Patent number: 6455631
    Abstract: The present invention relates to aqueous polyurethane dispersions wherein the polyurethanes contain terminal hydrazide groups and correspond to the formula wherein the terminal, modified hydrazide groups are present in an amount of 1 to 25% by weight [calculated as C(O)—NH—NH—C(O), MW 84], based on the weight of the polyurethanes, and wherein X represents OR′ or NHR′, R represents the residue obtained by removing the isocyanate groups from an NCO prepolymer, R′ represents a group which is inert to Isocyanate groups under the conditions used to form the polyurethane of in formula I, R″ represents a divalent, linear or branched aliphatic group containing 2 to 10 carbon atoms, provided that there are at least two carbons between the oxygen atoms, wherein the aliphatic group may optionally be substituted by heteroatoms to form ether or ester groups, m is 0 or 1 and n is 2 to 4.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: September 24, 2002
    Assignees: Bayer Corporation, Bayer Aktiengesellschaft
    Inventors: Harald Blum, Lyubov K. Gindin, Karen M. Henderson, Patricia B. Jacobs, Sze-Ming Lee, Brian Long, Robert A. Sylvester, Douglas A. Wicks
  • Patent number: 6448363
    Abstract: The present invention provides a solventless, continuous process, which includes: in at least one extruder, intensive compounder, intensive mixer or static mixer, mixing and heating a reaction mixture including the following (A), (B), and one or both of (C) and (D): (A) at least one aliphatic, (cyclo)aliphatic and/or cycloaliphatic C3-C50 diisocyanate compound; (B) at least one aliphatic, (cyclo)aliphatic and/or cycloaliphatic C3-C50 polyisocyanate compound containing one or more isocyanurate groups; (C) 1,2,4-triazole; (D) one or more pyrazole having the formula: where R1, R2 and R3 simultaneously or independently of one another are hydrogen or alkyl, alkenyl, aralkyl, aryl or N-substituted carbamoyl groups, halogen or —C(═O)—O—R4, where R4 is a C1-C12 alkyl group; to obtain a product mixture including at least one (semi)crystalline, blocked C3-C50 isocyanate compound and at least one amorphous, blocked C3-C50 isocyanate compound.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: September 10, 2002
    Assignee: Degussa AG
    Inventors: Andreas Wenning, Thomas Weihrauch
  • Patent number: 6437056
    Abstract: Coating composition suitable for multilayer lacquering, containing, in addition to organic solvent, anti-sagging agents, optionally pigments, extenders and additives, a binder/crosslinkin agent system containing A) from 20 to 80 wt. % of carboxyl-functional (meth)acrylic copolymers and/or carboxyl-functional polyesters having an acid number of from 20 to 300, B) from 20 to 80 wt. % of epoxy-functional crosslinking agents, the percentages by weight of A) and B) adding up to 100 wt. %. C) from 0 to 30 wt. % of polymer polyol C), based on the sum of the weights of A) and B), E) from 0 to 20 wt. % of further crosslinking agents, based on the sum of the weights of A, B, and C), F) from 0 to 10 wt. % of monoepoxides, based on the sum of the weights of A) and B), and D) as anti-sagging agents, from 0.1 to 3 wt.
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: August 20, 2002
    Assignee: E. I. du Pont de Nmeours and Company
    Inventors: Ralf Dahm, Carmen Flosbach, Hermann Kerber, Walter Schubert, Astrid Tückmantel
  • Patent number: 6437074
    Abstract: Partially or totally blocked polyisocyanates comprising physical mixtures of individual a) urethane-functional and/or b) biuret-functional and/or c) isocyanurate-functional aliphatic and (cyclo)aliphatic and/or cycloaliphatic diisocyanate whose isocyanate groups are blocked in such a way that there is from 0.5 to 1 mol, preferably from 0.8 to 1 mol, of 1, 2, 4-triazole per isocyanate equivalent.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: August 20, 2002
    Assignee: Huels Aktiengesellschaft
    Inventor: Rainer Gras
  • Patent number: 6433097
    Abstract: A curable acrylic polymer composition useful in coating, sealant or adhesive compositions comprises an acrylic polymer containing pendant functional groups selected from epoxide groups, isocyanate groups, alkoxysilane groups and activated —CH— groups bonded to at least two electron-withdrawing groups and a curing agent which is reactive with the functional groups of the acrylic polymer and is characterized in that the polymer is dissolved in an organic compound of viscosity less than 2 Pas (20 poise) at 25° C. containing at least one functional group of the same functionality as that present in the acrylic polymer. The composition can be prepared by the free radical polymerization of a functional olefinically unsaturated monomer, and optionally one or more ethylenically unsaturated comonomers, in the presence of the said functional organic compound as diluent.
    Type: Grant
    Filed: January 27, 1999
    Date of Patent: August 13, 2002
    Assignee: International Coatings Limited
    Inventors: Steven Alistair Nixon, Sarah Anne Mackie Kelly
  • Patent number: 6433123
    Abstract: Herein are disclosed a curable resin composition for overcoat of flexible circuit which comprises a hydrogenated polybutadiene polyol with a number-average molecular weight of 1,000-8,000 and having 2-10 hydroxyl groups per molecule (Polyol A), and a polybutadiene polyblock isocyanate (Isocyanate X), and other similar curable resin compositions, which can be an overcaoting agent which can give a coat film involving no such trouble that the coat film gets overhardened and the curling is increased.
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: August 13, 2002
    Assignee: Ajinomoto Co., Inc.
    Inventor: Hiroshi Orikabe
  • Publication number: 20020107325
    Abstract: Clearcoat coating composition for automotive exterior coatings with improved intercoat adhesion to a subsequently applied coating layer and improved flexibility contains (a) a first vinyl copolymer prepared from a monomer mixture including no more than about 35% by weight of nonfunctional monomers that has carbamate functionality and hydroxyl functionality, at least part of the hydroxyl functionality being on monomer units including an optionally branched alkyl group having at least about six carbon atoms; (b) a second vinyl copolymer having hydroxyl functionality, preferably primary hydroxyl functionality; and (c) a curing agent component that includes at least an aminoplast curing agent and optionally a polyisocyanate curing agent. The polyisocyanate curing agent is preferably blocked with a blocking agent that volatilizes during the cure reaction, regenerating a reactive isocyanate group.
    Type: Application
    Filed: December 14, 2001
    Publication date: August 8, 2002
    Inventors: John A. Gilbert, Donald H. Campbell, Vincent Cook
  • Publication number: 20020103292
    Abstract: The present invention relates to aqueous polyurethane dispersions wherein the polyurethanes contain terminal hydrazide groups and correspond to the formula 1
    Type: Application
    Filed: December 1, 2000
    Publication date: August 1, 2002
    Inventors: Harald Blum, Lyubov K. Gindin, Karen M. Henderson, Patricia B. Jacobs, Sze-Ming Lee, Brian Long, Robert A. Sylvester, Douglas A. Wicks
  • Patent number: 6423777
    Abstract: The invention relates to new high-functional polyaddition compounds which contain free isocyanate groups with an average isocyanate functionality of 2.1 to 8.0, a concentration of uretdione of 10 to 18 wt. %, a concentration of urethane of 10 to 20 wt. % and a concentration of ester groups —CO—O and/or carbonate groups —O—CO—O of 1 to 17 wt. %, a process for the preparation thereof and their use as starting components for the preparation of polyurethane plastics, in particular as cross-linking agents for heat-curable powder coatings.
    Type: Grant
    Filed: September 5, 2000
    Date of Patent: July 23, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Josef Laas, Ulrich Freudenberg, Reinhard Halpaap, Michael Grahl
  • Publication number: 20020095012
    Abstract: A process for producing scratch-resistant coatings, especially scratch-resistant multicoat finishes, involving use of coating compositions which
    Type: Application
    Filed: February 27, 2002
    Publication date: July 18, 2002
    Inventors: Ulrike Rockrath, Peter Betz, Fritz Bartol, Georg Wigger, Hubert Baumgart
  • Patent number: 6410646
    Abstract: A process for producing scratch-resistant coatings, especially scratch-resistant multicoat finishes, involving use of coating compositions which, after curing, have a storage modulus E′ in the rubber-elastic range of at least 107.5 Pa and a loss factor tan&dgr; at 20° C. of at least 0.05, the storage modulus E′ and the loss factor having been measured by dynamic mechanical thermoanalysis on free films having a film thickness of 40±10 &mgr;m, and comprise as binders one or more polyacrylate resins having a hydroxyl number of from 100 to 240, an acid number of from 0 to 35, and a number-average molecular weight of from 1500 to 10,000, and as crosslinkers one or more free or blocked isocyanates and/or triazine-based components which crosslink with the hydroxyl groups of the binder to form ether and/or ester structures.
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: June 25, 2002
    Assignee: BASF Coatings AG
    Inventors: Ulrike Röckrath, Peter Betz, Fritz Bartol, Georg Wigger, Hubert Baumgart
  • Patent number: 6391390
    Abstract: The present invention provides a curable coating composition that includes a film-forming polymer, a polymeric additive having at least one bound surface protecting group, and a crosslinker that is reactive with the film-forming polymer. The polymeric additive is substantially free of groups reactive with the crosslinker and has comonomer units with aryl groups, alkyl groups having, on average, four or more carbon atoms, or combinations of the aryl and alkyl groups. When the coating composition is cured to form a cured coating layer, the concentration of the polymeric additive in the upper about 50% of the cured coating layer thickness is at least about 10% higher than the concentration of the polymeric additive in the rest of the cured coating layer.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: May 21, 2002
    Assignee: BASF Corporation
    Inventors: John E. Boisseau, Donald L. St. Aubin, Walter H Ohrbom
  • Patent number: 6388010
    Abstract: This invention provides a process for producing a polyurethane resin from a hydrogenated polydiene diol or polyol having a functional group equivalent weight of 750 to 10000, a reinforcing agent having a functional group equivalent weight of 30 to 200, and a polyisocyanate. In a preferred embodiment, the process comprises reacting at least one of a polydiene diol or a reinforcing diol or triol with the polyisocyanate at an NCO/functional group molar ratio of 0.4 to 0.7 or a functional group/NCO molar ratio of 0.25 to 0.55 to form a stable reaction product, adding to this reaction product an additional sufficient amount of the polyisocyanate and, as needed, one or both of the polydiene diol or the reinforcing agent to bring the NCO/functional group ratio up to from 0.9 to 1.1 and to achieve a polydiene diol content of 35 to 80%w (on solids basis) and a reinforcing agent content of 2 to 17%w (on solids basis), and reacting this final mixture to form a crosslinked polyurethane product.
    Type: Grant
    Filed: January 25, 2000
    Date of Patent: May 14, 2002
    Inventor: David John St. Clair
  • Patent number: 6380343
    Abstract: Herein is desclosed a curable resin composition comprising at least one polyol selected from the group consisting of Polyol A, including polybutadiene polyol (Polyol Aa), Polyol B, including polybutadiene polyol (Polyol Ba) and polyester polyol (Polyol Bb), and Polyol C, and at least one polyblock isocyanate selected form the group consisting of polyblock isocyanate (Isocyanate X), including polybutadiene polyblock isocyanate (Isocyanate Xa), which is excellent in warp property, i.e., provides a low shrinkage, upon curing, and the cured products of which are particularly excellent in flexibility and excellent in such properties chemical resistance, heat resistance, electric insulation, bending resistance and adherence, and which is, therefore, suitable for overcoat of flexible circuit.
    Type: Grant
    Filed: July 19, 2000
    Date of Patent: April 30, 2002
    Assignee: Ajinomoto Co., Inc.
    Inventors: Hiroshi Orikabe, Tadahiko Yokota
  • Patent number: 6380342
    Abstract: The present invention relates to an aqueous dispersion containing A) a polyol component containing A1) 20 to 60 wt. %, based on the resin solids content of polyol component A), of a polyester resin containing 10 to 60 wt. %, based on the weight of the polyester resin, of one or more aliphatic, saturated or unsaturated monocarboxylic acids having 8 to 30 carbon atoms, and 0.4 to 5 wt. % of one or more radically polymerizable &agr;,&bgr;-unsaturated mono- or di-carboxylic acids having 3 to 8 carbon atoms, or their anhydrides, and A2) 40 to 80 wt. %, based on the resin solids content of polyol component A), of a polyacrylate, which is prepared in the presence of component A1), and B) 1 to 70 wt. %, based on the resin solids content of the aqueous dispersion, of one or more blocked polyisocyanates.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: April 30, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Christoph Irle, Harald Blum, Joachim Petzoldt, Heino Müller
  • Patent number: 6380308
    Abstract: The invention relates to a binder composition containing A) 50-90 parts by wt. of OH-functional graft copolymer resins prepared from a) 0.1 to 10 parts by wt. of polybutadiene, b) 5 to 60 parts by wt. of an unsaturated aromatic monomer, c) 10 to 50 parts by wt. of a hydroxyalkyl ester of (meth)acrylic acid, d) 5 to 70 parts by wt. of a cycloaliphatic ester of (meth)acrylic acid, e) 5 to 50 parts by wt. of an aliphatic ester of (meth)acrylic acid, f) 0.1 to 5 parts by wt. of a mono-olifinically unsaturated mono- or dicarboxylic acid and/or maleic or fumaric acid half esters, B) 0.1 to 5 parts by wt. of a polyfunctional crosslinking agent.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: April 30, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Christian Wamprecht, Michael Sonntag, Holger Mundstock
  • Patent number: 6379807
    Abstract: The present invention is directed to a coating composition particularly useful as a clear coating applied over a pigmented base coating, wherein the clear coating has improved resistance to marring and to acid etching when exposed to natural weathering conditions. The clear coating is particularly useful as an automotive OEM clear coating or as a refinish clear coating. The coating has two components. Component A of the coating composition includes a melamine and an acrylosilane polymer of a polymerized monomers mixture, which includes an alkyl methacrylate, an alkyl acrylate, cycloaliphatic alkyl methacrylate, cycloaliphatic alkyl acrylate, styrene or any mixture of these monomers; hydroxy alkyl methacrylate, hydroxy alkyl acrylate or any mixtures of these monomers; and a mono-ethylenically unsaturated silane monomer. Component B of the composition includes an organic polyisocyanate as a crosslinking agent.
    Type: Grant
    Filed: November 7, 2000
    Date of Patent: April 30, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: John D Nordstrom, Jun Lin
  • Patent number: 6376592
    Abstract: A water dispersion type water and oil repellent composition obtained by polymerizing the following polymerizable monomer mixture (b) in the presence of a compound (a) having a blocked isocyanate group and no polymerizable unsaturated group: (b) a mixture comprising a polymerizable monomer having a polyfluoroalkyl group and a polymerizable monomer having no polyfluoroalkyl group.
    Type: Grant
    Filed: August 12, 1999
    Date of Patent: April 23, 2002
    Assignee: Asahi Glass Company, Ltd.
    Inventors: Toyomichi Shimada, Takashige Maekawa
  • Patent number: 6376608
    Abstract: A curable powder film-forming composition which includes: (a) about 55 to 80 percent by weight based on the total weight of resin solids in the film forming composition, of an epoxy functional copolymer having a Tg of about 77° F. to about 158° F. formed by free radical initiated polymerization of: (i) about 25 to about 75 percent by of a glycidyl functional ethylenically unsaturated monomer, and (ii) about 25 to about 75 percent by weight of a copolymerizable ethylenically unsaturated monomer or mixture of monomers free of glycidyl functionality; (b) about 15 to about 35 percent by weight of a polycarboxylic acid; and (c) about 1.0 to about 4.0 percent by weight of a polyisocyanate at least partially capped with a capping agent. A multi-component composite coating composition is also provided, which includes a pigmented film-forming base coat and a transparent top coat of the film-forming composition described above.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: April 23, 2002
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Karen A. Barkac, Roxalana L. Martin, Douglas W. Maier
  • Patent number: 6376589
    Abstract: There is disclosed a coating composition comprising a binder component consisting of (A′) hydroxyl group-containing polyester resin having a number average molecular weight of 2,000-20,000, glass transition temperature of −40° C. to 30° C. and hydroxyl value of 5-95 mgKOH/g, (B) blocked polyisocyanate compound blocked with &egr;-caprolactam, and the equivalent ratio of the blocked isocyanate groups in said blocked polyisocyanate compound (B)/the hydroxyl groups in said polyester resin (A) being in the range of 0.7-1.2, and 0.5-30 parts by weight of said resin fine particles (C) with an average particle diameter of 8-70 &mgr;m, which do not completely melt at the time of coating film curing, per 100 parts by weight of said binder component. Said coating composition can form a coating film having excellent popping resistance. hardness, processibility, anti-tackiness, blocking resistance and curability by a high temperature short time baking.
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: April 23, 2002
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Shoichi Tanaka, Hideyuki Abe
  • Publication number: 20020041966
    Abstract: Thermosetting polymers and the electrical laminates made therefrom are disclosed. The polymer comprises the cross-linked product of: a) one or more ethylenically unsaturated aromatic monomers, optionally containing a halogenated monomer to impart fire retardation, and b) a vinyl-terminated polybutadiene or butadiene-styrene copolymer containing either a urethane or an ester group. It has been discovered that an unexpected combination of thermal, electrical, and mechanical properties are obtained from the composition recited herein. The composition is ideally suited as a matrix polymer for electrical substrate applications.
    Type: Application
    Filed: October 30, 2001
    Publication date: April 11, 2002
    Applicant: GIL TECHNOLOGIES
    Inventors: Scott Alan Lane, Donald Clyle Rollen, Timothy Wayne Austill
  • Publication number: 20020040104
    Abstract: Thermosetting polymers and the electrical laminates made therefrom are disclosed. The polymer comprises the cross-linked product of: a) one or more ethylenically unsaturated aromatic monomers, optionally containing a halogenated monomer to impart fire retardation, and b) a vinyl-terminated polybutadiene or butadiene-styrene copolymer containing either a urethane or an ester group. It has been discovered that an unexpected combination of thermal, electrical, and mechanical properties are obtained from the composition recited herein. The composition is ideally suited as a matrix polymer for electrical substrate applications.
    Type: Application
    Filed: October 30, 2001
    Publication date: April 4, 2002
    Applicant: GIL TECHNOLOGIES
    Inventors: Scott Alan Lane, Donald Clyle Rollen, Timothy Wayne Austill
  • Patent number: 6365699
    Abstract: A curable composition and process of applying the composition and the resulting composite coatings provide improved resistance to acid etch and mar. The curable composition has (a) about 30 to 90 percent by weight, based on total weight of resin solids, of a film-forming composition selected from the group consisting of: (i) a polyepoxide and a polyacid crosslinking agent; (ii) an acrylosilane polymer, an acrylic polyol polymer, and optionally an alkylated melamine-formaldehyde crosslinking agent; and (iii) a polyisocyanate and a polymer having at least one group that is reactive with isocyanate; and (b) about 10 to 70 percent by weight, based on total weight of resin solids, of a tricarbamoyl triazine compound of the formula: C3N3(NHCOXR)3 wherein X is nitrogen, oxygen, sulfur, phosphorus, or carbon, and R is a lower alkyl group having 1 to 12 carbon atoms, or mixtures of lower alkyl groups.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: April 2, 2002
    Assignee: PPG Industries Ohio, Inc.
    Inventors: George W. Mauer, James A. Meier, Lynne R. Stahl