Electrodepositable Compositions Patents (Class 524/901)

Cross-Reference Art Collections

Electrostatic spray (Class 524/902)
  • Patent number: 8853442
    Abstract: A resin crosslinking agent that is capable of enhancing the scuffing resistance and the chemical resistance upon adding a carbodiimide compound as a crosslinking agent to an aqueous resin. The resin crosslinking agent contains: a carbodiimide compound having at least one carbodiimide group, having terminals that are capped with at least one compound (hydrophilic organic compound I) selected from a dialkylamino alcohol, a hydroxycarboxylic acid alkyl ester and a (poly)alkylene glycol monoalkyl ether, and with a compound (hydrophilic organic compound II) that has higher hydrophilicity than the hydrophilic organic compound I and has at least one hydroxyl group; and a water-miscible liquid compound.
    Type: Grant
    Filed: December 24, 2010
    Date of Patent: October 7, 2014
    Assignee: Nisshinbo Holdings, Inc.
    Inventors: Kenichi Yanagisawa, Saori Kotani
  • Patent number: 8617373
    Abstract: A cathodic electrodeposition coating material comprising (A) at least one water-dispersible organic binder containing cationic groups, where the cathodic electrodeposition coating material has been admixed with 0.005%-0.5% by weight, based on the solids content of the cathodic electrodeposition coating material, of (B) an organic, tetravalent titanium, zirconium or hafnium complex having one or more oxygen-containing ligands.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: December 31, 2013
    Assignee: BASF Coatings GmbH
    Inventors: Verena Peters, Hubert Baumgart, Michael Dornbusch
  • Patent number: 8604154
    Abstract: A water-soluble or water-dispersible carbodiimide compound is hydrophilicized by incorporating methyl glycolate or methyl lactate, which serves a moiety similar to the moiety which aqueous urethane resin, aqueous acrylic resin, or the like possesses, into an end of a starting carbodiimide compound. The invention provides a carbodiimide compound and a carbodiimide composition, which, when added as a cross-linking agent to aqueous resin, can enhance water resistance, solvent resistance, and adhesion of the resin, while maintaining the conventionally attained pot life, and an aqueous coating composition containing the carbodiimide compound or composition.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: December 10, 2013
    Assignee: Nisshinbo Holdings Inc.
    Inventors: Ikuo Takahashi, Kenichi Yanagisawa, Noriko Osuga
  • Patent number: 8236157
    Abstract: A pigment dispersing resin is disclosed along with pigment dispersion, electrodepositable coating compositions using the pigment dispersing resin, and methods for applying the electrodepositable coating composition. The pigment dispersing resin consists essentially of the carboxylic acid salt of an aminated bisphenol epoxy resin and an alkoxylated styrenated phenol. Pigment dispersions made from the dispersing resin are especially useful for forming low or no volatile organic content electrocoating baths.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: August 7, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventor: Taddesse Gebregiorgis
  • Patent number: 7550419
    Abstract: This invention relates to a composition useful as an oral care composition comprising an organophosphate material, additional oral care composition ingredients, for example, a surfactant agent, and optionally an abrasive agent.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: June 23, 2009
    Assignee: Rhodia Inc.
    Inventors: Tobias Johannes F├╝tterer, Lawrence Alan Hough, Robert Lee Reierson
  • Patent number: 7351755
    Abstract: In a method of producing an oil-in-water type emulsion containing an internally crosslinked fine resin particle, the fine resin particle is encapsulated in an emulsion particle having an average particle diameter of 0.02 to 0.3 ?m. The method includes a step of undergoing phase transition from a water-in-oil type emulsion (Y) which includes a resin (A) having a cationic group or an anionic group, an acid or a base (B) neutralizing 20 to 150 mole percent of the cationic group or the anionic group in the resin (A), an internally crosslinked fine resin particle (C), having an average particle diameter of 0.01 to 0.2 ?m, dispersed in an oil phase and an aqueous medium (D) to an oil-in-water type emulsion (Z) by adding the aqueous medium (D) further to the water-in-oil type emulsion (Y).
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: April 1, 2008
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Hitoshi Hori, Yasuhiro Hayashi, Seiko Inoue, legal representative, Hisaichi Muramoto, Tsuyoshi Inoue
  • Patent number: 7112628
    Abstract: Aqueous electrophoretic lacquer capable of being deposited cataphoretically, containing A) an aqueous dispersion of cationically modified polyurethane (meth)acrylates (a1) with terminal, ethylenically unsaturated (meth)acrylic double bonds, and reactive thinner (a2) with at least two ethylenically unsaturated (meth)acrylic double bonds, the (meth)acrylic double bonds of the mixture of (a1) and (a2) corresponding to a bromine number of 20 to 150 g bromine/100 g solids, and B) photoinitiators and optionally free-radical initiators capable of thermal activation, the terminal, ethylenically unsaturated (meth)acrylic double bonds of the polyurethane (meth)acrylates being bonded with the anionically modified polyurethane prepolymer via urethane, urea, amide or ester groups, and optionally conventional auxiliary substances and additives, pigments and/or fillers.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: September 26, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Andreas Fieberg, Volker Rekowski, Dietrich Saatweber, Hans-Ulrich Simmrock, Bettina Vogt-Birnbrich
  • Patent number: 7078474
    Abstract: Thermally curable coating composition with a resin solids content which contains (a) at least one binder with isocyanate-reactive groups and at least one polyisocyanate crosslinking agent blocked by means of at least one dihydrocarbyl phosphite and/or (b) at least one self-crosslinkable binder with isocyanate-reactive groups and with isocyanate groups blocked by means of at least one dihydrocarbyl phosphite.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: July 18, 2006
    Assignee: E. I. duPont de Nemours and Company
    Inventors: Ulrich Hermann, Rudolf Schipfer, Guenther Monschein
  • Patent number: 6951602
    Abstract: The invention relates to the use of a water-soluble polyvinyl alcohol (co)polymer or a mixture of polyvinyl alcohol (co)polymers as additives in aqueous electrodeposition baths, to electrodeposition baths comprising a polyvinyl alcohol (co)polymer, and to a method of coating an electrically conductive substrate.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: October 4, 2005
    Assignee: BASF Coatings AG
    Inventors: Hardy Reuter, Dagmar Schemschat, Karl-Heinz Grosse-Brinkhaus, Ulrich Heimann, Walter Jouck
  • Patent number: 6784236
    Abstract: The present invention provides an electrodeposition coating composition which has an excellent film forming property and which is excellent in performances such as a smoothness and an anti-corrosion performances even after storing over a long period of time. The electrodeposition coating composition comprises an ester compound selected from the group consisting of: (a) a diester compound of polyoxyalkylene glycol and aliphatic monocarboxylic acid, (b) a diester compound of polyoxyalkylene alkyl ether monoalcohol and aliphatic dicarboxylic acid and (c) a polyester compound obtained by reaction of aliphatic glycol having 2 or 3 carbon atoms, aliphatic dicarboxylic acid and aliphatic monoalcohol.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: August 31, 2004
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Masaru Sugita, Fumiaki Nakao, Katsuhisa Sugisaki, Kouji Hirano, Kenji Aoki, Yoshitaka Mizoguchi, Akira Tominaga
  • Patent number: 6713587
    Abstract: The present invention relates to an electrodepositable coating composition having a resinous phase dispersed in an aqueous medium. The resinous phase includes (a) an ungelled, active hydrogen-containing, ionic salt group-containing resin; and (b) a curing agent reactive with the active hydrogens of the resin (a). The resinous phase has a covalently bonded halogen content based on total weight of resin solids present in the resinous phase such that when the composition is electrodeposited and cured, the cured film passes flame resistance testing in accordance with IPC-TM-650, and has a dielectric constant of less than or equal to 3.50. The invention also is directed to a method for forming a dielectric coating on an electroconductive substrate using the electrodepositable coating composition, as well as to a substrate coated with the electrodepositable composition.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: March 30, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Gregory J. McCollum, Thomas C. Moriarity, Kevin C. Olson, Michael G. Sandala, Alan E. Wang, Craig A. Wilson, Steven R. Zawacky
  • Patent number: 6669835
    Abstract: Aqueous compositions containing polymerizable components and a water incompatible catalyst for the polymerization reaction sorbed onto an inorganic particulate carrier, polymers produced thereby and articles coated with said polymers are provided. The invention also relates to water incompatible catalyst sorbed onto on an inorganic particulate carrier for aqueous coatings and the coatings produced by reactions catalyzed with the water incompatible catalyst sorbed onto an inorganic particulate carrier in an aqueous matrix.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: December 30, 2003
    Assignee: ATOFINA Chemicals, Inc.
    Inventor: William D. Honnick
  • Patent number: 6509411
    Abstract: Aqueous, anodically precipitable electrodeposition lacquer, containing A) an aqueous dispersion consisting of anionically modified polyurethane (meth)acrylates (a1) having terminal, ethylenically unsaturated (meth)acrylic double bonds, and reactive thinners (a2) having at least two ethylenically unsaturated (meth)acrylic double bonds, whereby the (meth)acrylic double bonds from the mixture comprising (a1) and (a2) correspond to a bromine number of 20 to 150 g bromine/100 g solids, and B) optionally photo-initiators and/or optionally thermally activable radical initiators, whereby the terminal ethylenically unsaturated (meth)acrylic double bonds from the polyurethane (meth)acrylates are bonded to the anionically modified polyurethane prepolymer via urethane, urea, amide or ester groups, and optionally conventional auxiliary substances and additives, pigments and/or fillers.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: January 21, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Andreas Fieberg, Volker Rekowski, Dietrich Saatweber, Hans-Ulrich Simmrock, Bettina Vogt-Birnbrich
  • Patent number: 6479109
    Abstract: Disclosed are thermosetting compositions which are comprised of a resinous phase dispersed in an aqueous medium, the resinous phase comprising (a) an ungelled active hydrogen group-containing polymer which contains onium salt groups, the polymer having been prepared by atom transfer radical polymerization in the presence of an initiator having at least one radically transferable group, and (b) a curing agent having at least two functional groups which are reactive with the active hydrogen groups of (a). The active hydrogen group-containing polymers of the thermosetting compositions, which are prepared by atom transfer radical polymerization, have narrow molecular weight distributions and well-defined, specifically tailored polymer architecture which can provide enhanced crosslink density and dispersibility of the thermosetting compositions. Also disclosed is a method of electrocoating a conductive substrate using the thermosetting compositions of the invention, and a substrate coated by this method.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: November 12, 2002
    Inventors: Gregory J. McCollum, Linda K. Anderson, Simion Coca
  • Publication number: 20020098375
    Abstract: The present invention provides an electrodeposition coating composition which has an excellent film forming property and which is excellent in performances such as a smoothness and an anti-corrosion performances even after storing over a long period of time.
    Type: Application
    Filed: April 24, 2001
    Publication date: July 25, 2002
    Inventors: Masaru Sugita, Fumiaki Nakao, Katsuhisa Sugisaki, Kouji Hirano, Kenji Aoki, Yoshitaka Mizoguchi, Akira Tominaga, Kazuo Saito, Akio Ikegami
  • Patent number: 6423774
    Abstract: The present invention is directed to an electrodepositable composition of a resinous phase dispersed in an aqueous medium. The resinous phase includes an ionic polyester polymer prepared from a) an aromatic and/or cycloaliphatic carboxylic acid compound having at least two aromatic and/or secondary aliphatic carboxyl groups, b) a branched aliphatic, cycloaliphatic or araliphatic compound containing at least two aliphatic hydroxyl groups, the aliphatic hydroxyl groups being either secondary or tertiary hydroxyl groups or primary hydroxyl groups attached to a carbon adjacent to a tertiary or quaternary carbon, c) a compound including an ionic salt group or a group which is converted to an ionic salt group, and d) optionally, at least one hydroxyl substituted carboxylic compound comprising at least one tertiary aliphatic carboxyl group and at least two aliphatic hydroxyl groups.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: July 23, 2002
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Steven R. Zawacky, Raphael O. Kollah, Craig A. Wilson, Gregory J. McCollum, Robin M. Peffer, Geoffrey R. Webster, Jr., Venkatachalam Eswarakrishnan, Linda K. Anderson
  • Patent number: 6365666
    Abstract: Disclosed are thermosetting compositions which are comprised of a resinous phase dispersed in an aqueous medium, the resinous phase comprising (a) an ungelled active hydrogen group-containing polymer which contains onium salt groups, the polymer having been prepared by atom transfer radical polymerization in the presence of an initiator having at least one radically transferable group, and (b) a curing agent having at least two functional groups which are reactive with the active hydrogen groups of (a). The active hydrogen group-containing polymers of the thermosetting compositions, which are prepared by atom transfer radical polymerization, have narrow molecular weight distributions and well-defined, specifically tailored polymer architecture which can provide enhanced crosslink density and dispersibility of the thermosetting compositions. Also disclosed is a method of electrocoating a conductive substrate using the thermosetting compositions of the invention, and a substrate coated by this method.
    Type: Grant
    Filed: August 16, 1999
    Date of Patent: April 2, 2002
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Gregory J. McCollum, Linda K. Anderson, Simion Coca
  • Publication number: 20010056156
    Abstract: Disclosed are thermosetting compositions which are comprised of a resinous phase dispersed in an aqueous medium, the resinous phase comprising (a) an ungelled active hydrogen group-containing polymer which contains onium salt groups, the polymer having been prepared by atom transfer radical polymerization in the presence of an initiator having at least one radically transferable group, and (b) a curing agent having at least two functional groups which are reactive with the active hydrogen groups of (a). The active hydrogen group-containing polymers of the thermosetting compositions, which are prepared by atom transfer radical polymerization, have narrow molecular weight distributions and well-defined, specifically tailored polymer architecture which can provide enhanced crosslink density and dispersibility of the thermosetting compositions Also disclosed is a method of electrocoating a conductive substrate using the thermosetting compositions of the invention, and a substrate coated by this method.
    Type: Application
    Filed: June 29, 2001
    Publication date: December 27, 2001
    Inventors: Gregory J. McCollum, Linda K. Anderson, Simion Coca
  • Patent number: 6288176
    Abstract: An agent for the single-stage full blocking of polyisocyanates comprises or consists of an alcohol mixture A) comprising a) furfuryl alcohol or substituted furfuryl alcohols in an amount corresponding to from 60 to 90, in particular from 65 to 85, mol % of hydroxyl groups and b) at least one monoalcohol in an amount corresponding to at least 2 mol % of hydroxyl groups, based in each case on the total amount of hydroxyl groups in components a) and b). In addition, the alcohol mixture A) may also include at least one aliphatic polyol c) of low molecular mass with a functionality of three and/or more in an amount corresponding to at least 5 mol % of hydroxyl groups, based on the total amount of hydroxyl groups in components a), b) and c). In this case component b) can have a molecular weight of <163 g/mol.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: September 11, 2001
    Assignee: BASF Coatings AG
    Inventors: Bing Hsieh, Silke Przybilla, Ingeborg Grempels, Walter Jouck, Hardy Reuter, Dagmar Schemschat, Oliver Johannpoetter, Walburga Kathmann, Adam Stals
  • Patent number: 6248225
    Abstract: A process for applying two electrodeposited coatings, one on top of the other, to an electrically conductive substrate is provided. An electrically conductive first coating is applied to provide for corrosion resistance and a second polyurethane-based coating is applied to the first coating to provide chip resistance. Also, aqueous dispersions of the polyurethane coating compositions are disclosed.
    Type: Grant
    Filed: May 11, 1999
    Date of Patent: June 19, 2001
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Thomas Palaika, Ellor J. Van Buskirk, Victor G. Corrigan, Venkatachalam Eswarakrishnan, Gregory J. McCollum, Robert R. Zwack, Philippe Faucher, Craig A. Wilson, Chester J. Szymanski, James E. Poole, Keith S. Ritter, Richard F. Syput
  • Patent number: 6228472
    Abstract: The invention provides a process for preparing an allophanate-containing compound in the presence of a metal catalyst and a tertiary amine. In a preferred process, the tertiary amine compound also has a hydroxyl group. The hydroxyl group can react with the isocyanate functionality. Also disclosed is a process in which an allophanate-containing compound is prepared with copper acetate monohydrate as a catalyst. The allophanate-containing compound is used as a curing agent in coating compositions, particularly electrocoat coating compositions. The coating compositions are used to coat articles.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: May 8, 2001
    Assignee: BASF Corporation
    Inventor: Charles L. Tazzia
  • Patent number: 6218446
    Abstract: A radiation-curable formulation employs an electrically conductive primary filler, comprised of elements of elongate form and having surfaces that reflect the actinic radiation to which the photoinitiator employed is responsive, and a secondary filler that is electrically semiconducting and is substantially transparent to the actinic radiation; silver-coated cylindrical fibers or rods will typically constitute the primary conductive filler. Solid deposits cured from the formulation may function, for example, as sealing elements, gaskets, solder joints, and coatings.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: April 17, 2001
    Assignee: Dymax Corporation
    Inventors: John R. Arnold, Vu V. Lam, Andrew G. Bachmann
  • Patent number: 6214470
    Abstract: An electrocoat coating composition comprising an electrodepositable resin that has functionality reactive with isocyanate and a curing agent having at least one allophanate groups is described. The invention also provides a method of applying the composition of the invention to a substrate and curing the applied coating.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: April 10, 2001
    Assignee: BASF Corporation
    Inventors: Charles L. Tazzia, Timothy S. December, Thirumurti Narayan
  • Patent number: 6190525
    Abstract: Disclosed are improved electrodeposition bath compositions comprising a resinous phase dispersed in an aqueous medium, the resinous phase being comprised of an active hydrogen containing ionic electrodepositable resin and a curing agent, where the improvement comprises the addition to an electrodeposition bath of at least one source of yttrium in an amount of about 10 to 10,000 parts per million of total yttrium based on electrodeposition bath weight. The electrodeposition bath compositions are preferably cationic and provide for excellent corrosion resistance over a variety of metal substrates including untreated steel. Also disclosed is a method of electrocoating a conductive substrate using the improved electrodeposition bath compositions of the invention. Metallic substrates which are coated using the method of the invention are also disclosed.
    Type: Grant
    Filed: April 22, 1999
    Date of Patent: February 20, 2001
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Richard F. Karabin, Alan J. Kaylo
  • Patent number: 6110341
    Abstract: Disclosed is an improved electrodeposition bath composition which is comprised of a resinous phase dispersed in an aqueous medium, the resinous phase comprising an active hydrogen group-containing cationic electrodepositable resin and a curing agent having functional groups reactive with the active hydrogen groups of the resin. The improvement comprises the inclusion in the electrodeposition bath composition of an organic phosphorous-based compound of specific structures. The electrodeposition bath compositions provide excellent corrosion resistance to electrocoated substrates, particularly untreated steel, and reduced corrosivity of the acidic cationic electrodeposition bath to steel equipment and pipes. Also disclosed is a method of electrocoating a conductive substrate using the improved electrodeposition bath compositions of the invention. Metallic substrates coated by this method are also disclosed.
    Type: Grant
    Filed: October 22, 1998
    Date of Patent: August 29, 2000
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Neil D. McMurdie, Robert R. Zwack
  • Patent number: 6013167
    Abstract: A stable emulsion comprising a polyetherimide resin, neutralization agent, cosolvent, solvent, ring opening agent, and water, for use in a cataphoretic deposition process for forming a polyetherimide coating on a substrate, particularly a substrate having a complex geometry.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: January 11, 2000
    Assignee: General Electric Co.
    Inventors: Christian Bailly, Gert De Wit, Francois Guy-Marie Schue, Rossitza Schue, El Houssain Qariouh
  • Patent number: 5980715
    Abstract: The invention relates to cathodically depositable, aqueous electrodeposition coating materials which are characterized in that they contain particles of wax having a diameter of from 1 to 20 .mu.m.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: November 9, 1999
    Assignee: BASF Lacke + Farben AG
    Inventors: Karin Eckert, Uwe Buder, deceased, Susanne Piontek, Margret Stockbrink, Ulrich Heimann
  • Patent number: 5980919
    Abstract: Conductive, flowable, emollient compositions and electrostatic methods for their application e.g., to tissue, are disclosed. Compositions of the invention include emollient(s) and conductivity modifiers. Emollient-compatible phosphates and succinates are particularly preferred families of conductivity modifiers. In methods of the invention conductive emollient composition of the invention are preferably applied to tissue substrates, particularly facial tissue substrates, and particularly in a commercial tissue-making process. Electrostatic spray processes are utilized to obtain surprisingly uniform application of conductive emollient to tissue with minimal overspray or spray path overlap.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: November 9, 1999
    Assignee: Potlatch Corporation
    Inventors: Steven H. Greenfield, Edwin D. Culligan
  • Patent number: 5844037
    Abstract: A process for preparing an electronically-conductive thermoplastic composition having at least two phases, which includes (A) combining an amorphous or semi-crystalline thermoplastic polymer or miscible blend of polymers with an electronically-conductive carbon under conditions sufficient to disperse the conductive carbon, thereby forming a mixture having at least one phase, with at least 60 percent of the carbon dispersed in a first phase which comprises at least 90 percent by weight of the mixture; and (B) combining the mixture obtained from step (A) with an amorphous or semi-crystalline thermoplastic polymer or miscible blend of polymers, at least a portion of which is immiscible in the first phase, thereby forming a composition having at least two phases. Compositions prepared by this process are sufficiently conductive to be useful for a variety of applications, such as structural materials for applications requiring electromotively-paintable substrates.
    Type: Grant
    Filed: July 24, 1996
    Date of Patent: December 1, 1998
    Assignee: The Dow Chemical Company
    Inventors: Richard A. Lundgard, Susan J. Babinec, Robert D. Mussell, Ashish Sen
  • Patent number: 5837766
    Abstract: The present invention relates to an electrodepositable conductive coating composition which contains at least one cationic acrylic polymer, a crosslinking agent and conductive carbon black having an average particle size of about 20 nm or less, a surface area (BET) of about 240-300 m.sup.2 /g and an oil absorption (DBP) of about 100 to 150 ml/100 g. After curing, the conductive coating can be electrocoated with an electrodepositable topcoat having a defect-free appearance and a high degree of gloss.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: November 17, 1998
    Assignee: The Sherwin-Williams Company
    Inventors: James N. Metro, Ronald Mattiuz
  • Patent number: 5804051
    Abstract: An electrodepositable composition is provided comprising: (a) active hydrogen-containing, cationic salt group-containing resin electrodepositable on a cathode; (b) at least one at least partially capped polyisocyanate curing agent; (c) at least one metal-containing catalyst; and (d) at least one material having the following general formula: ##STR1## wherein R.sub.1 is alkyl or substituted alkyl having 1 to 18 carbon atoms or aryl or substituted aryl; and R.sub.2 is hydrogen, alkyl or substituted alkyl having 1 to 18 carbon atoms or aryl or substituted aryl. The composition can demonstrate enhanced corrosion resistance at low metal catalyst levels without loss of cured film properties or appearance when electrodeposited and cured over conductive substrates.
    Type: Grant
    Filed: August 29, 1996
    Date of Patent: September 8, 1998
    Assignee: PPG Industries, Inc.
    Inventors: Donald W. Boyd, Robert R. Zwack, Raphael O. Kollah, Gregory J. McCollum
  • Patent number: 5741599
    Abstract: Aromatic diamines having a carboxylic acid group and various other diamines are reacted with aromatic tetracarboxylic dianhdyrides in organic polar solvents to provide polyimides. Polyimide compositions for electrodeposition which comprise the neutralized salts of the polyimides, water and poor solvents for the polyimides have good keeping quality and when electrodeposited on electrically conductive materials, can form polyimide coats that have high levels of appearance, smoothness and denseness while exhibiting good physical and chemical characteristics in such aspects as heat resistance, electrical insulation and chemical resistance.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: April 21, 1998
    Assignee: PI Materials Research Laboratory
    Inventors: Yoshihiro Oie, Hiroshi Itatani, Shinichi Furusaki, Yuji Yamazaki, Sadakazu Hokamura
  • Patent number: 5556913
    Abstract: The present invention provides a cationic electrocoating composition which cures at the preferred curing temperature range and provides superior curing properties and cured film properties. The cationic electrocoating composition of the present invention comprises a resinous component and an aqueous medium, wherein the resinous component is composed of one or more polymers and has as a whole an active hydrogen containing group, a cationic group and a substituted group and at least one of the polymers comprises a vinyl polymer which has 5 to 1,000 substituted acylamide groups.
    Type: Grant
    Filed: January 3, 1994
    Date of Patent: September 17, 1996
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Kenshiro Tobinaga, Hiroyuki Sakamoto, Shinsuke Shirakawa, Satoshi Urano, Yasuyuki Tsuchiya
  • Patent number: 5543084
    Abstract: A method for forming a coating on an electrically conductive surface is disclosed. The method comprises the steps of immersing the surface in a bath comprising an electrodepositable mixture of an intrinsically insulative polymer and an organic acid salt of an intrinsically conductive polymer, applying a voltage between an electrode and the surface in the bath to deposit a polymeric coating of the mixture on the surface, and curing the polymeric coating. The polymeric coating can be made electrically conductive by the additional step of immersing the polymeric coating in an organic acid after the deposition and before curing. A multilayered coating can be provided after curing the electrically conductive polymeric coating, by depositing a second or subsequent coating of an electrodepositable organic resin from an aqueous bath containing the resin on application of a voltage between an electrode and the electrically conductive polymeric subcoating in the bath.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: August 6, 1996
    Assignee: Monsanto Company
    Inventors: Patrick J. Kinlen, Robert E. W. Jansson
  • Patent number: 5491183
    Abstract: A cathodic electrodeposition paint containing a cationically modified epoxy resin and a crosslinker dispersed in an acidic aqueous medium is disclosed which contains an auxiliary resin component which is capable of improving the surface smoothness of the cured paint films and which is a reaction product produced by reacting a t-alkylphenol novolac epoxy resin with an amount of an active hydrogen compound sufficient to open all epoxy rings. When the thus produced auxiliary resin has a hydroxyl group, reaction thereof with a lactone or alkylene oxide, to graft a soft segment to the auxiliary resin improves not only the surface smoothness but also the impact strength of the paint films.
    Type: Grant
    Filed: November 4, 1994
    Date of Patent: February 13, 1996
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Mitsuo Yamada, Ichiro Kawakami, Hiroyuki Nojiri, Toshiyuki Ishii
  • Patent number: 5484838
    Abstract: The invention is a molded thermoplastic article having a modified electrical conductivity and hence being particularly adapted for electrostatic painting. The article is composed of a composition comprising a polymer blend of at least two polymers and electrically conductive carbon black. The polymer blend comprises a crystalline polymer and an amorphous or semi-crystalline polymer, the crystalline polymer comprising at least about 35 weight percent of the blend.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: January 16, 1996
    Assignee: Ford Motor Company
    Inventors: Jeffrey H. Helms, Edmund J. Blais, Mo-Fung Cheung
  • Patent number: 5473032
    Abstract: Coating composition containing one or several (meth)acrylic copolymers having hydroxyl groups, as well as one or several solvents and, optionally, water, special-effect pigments and/or coloring pigments, fillers and/or conventional lacquering additives, whereby the (meth)acrylic copolymer is essentially constructed from units based on the following monomers:a) 0.5-10.0% by weight of amides and/or N-substituted amides of acrylic acid and/or methacrylic acid,b) 5.0-30.0% by weight of phenylalkyl esters of acrylic acid and/or methacrylic acid,c) 10.0-30.0% by weight of hydroxyalkyl esters of acrylic acid and/or methacrylic acid having 2-8 C-atoms in the hydroxyalkyl residue,d) 0.6-7.5% by weight of acrylic acid and/or methacrylic acid, ande) 30.0-83.9% by weight of alkyl esters of acrylic acid and/or methacrylic acid having 1-18 C-atoms in the alkyl residue, andwhereby the sum of components a) to e) amounts in each case to 100.
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: December 5, 1995
    Assignee: Herberts Gesellschaft mit beschrankter Haftung
    Inventors: Klaus Bederke, Hermann Kerber, Olaf Ley, Michael Prescher, Petra Kochert-Muhlenbeck
  • Patent number: 5461091
    Abstract: A heat curable coating composition, particular for cathodic electrocoating, comprises(A) from 50 to 95% by weight of a chain or step growth polymerization product having functional groups and(B) from 50 to 5% by weight of a mixture of polymethylenepolyphenyl isocyanates which contains less than 25% of diphenylmethane diisocyanates.
    Type: Grant
    Filed: September 9, 1994
    Date of Patent: October 24, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Hoffmann, Dieter Faul, Klaus Huemke, John A. Gilbert
  • Patent number: 5430078
    Abstract: An electrodeposition coating composition is described comprising:(a) an aqueous dispersion of a water-dispersible, electrically-depositable resin, and(b) a water-soluble cellulose ether.
    Type: Grant
    Filed: August 31, 1993
    Date of Patent: July 4, 1995
    Assignee: BASF Corporation
    Inventors: Monika Hoppe-Hoeffler, Linda K. Borton, Charles L. Tazzia
  • Patent number: 5415750
    Abstract: Aqueous baths for electrophoretic lacquering containing binding agents capable of cathodic deposition and containing as additives for enhancing surface appearance, in particular as anti-cratering agents,0.1 to 3% by weight of one or several (meth)acrylic copolymers with an amine number of 15-150 and an OH-number of 15-450, together with0.1 to 2% by weight of one or several polyesters with .beta.-hydroxyalkyl ester groups, with an acid number of 0 to 3 and a weight average molecular weight of 1000 to 10000, and/or together with0.1 to 5% by weight of one or several homopolymers or copolymers of one or several alkylvinyl ethers with 1-5 carbon atoms in the alkyl residue, with a weight average molecular weight of 500 to 10000,whereby the percentages by weight relate to the solids content of the binding agents, and process for the coating of substrates that conduct electricity.
    Type: Grant
    Filed: December 9, 1993
    Date of Patent: May 16, 1995
    Assignee: Herberts AG
    Inventors: Klausjoerg Klein, Johann Hirtl, Heinz-Peter Katzmann
  • Patent number: 5384229
    Abstract: The present invention provides photoimageable compositions, processes and articles of manufacture. In particular, the invention provides a process comprising electrophoretically applying a coating layer of a photoimageable composition onto a conductive surface, the composition comprising a material that contains one or more photoacid labile groups. The photoimageable compositions of the invention preferably comprise a photoacid generator, a material that contains one or more acid-clearable functional groups, and a carrier resin that contains one or more functional groups that are, or can be treated to be, at least partially ionized.
    Type: Grant
    Filed: May 7, 1992
    Date of Patent: January 24, 1995
    Assignee: Shipley Company Inc.
    Inventors: Daniel Y. Pai, Stephen S. Rodriguez, Roger F. Sinta
  • Patent number: 5380412
    Abstract: The invention relates to a cathodic electrocoating process, which uses electrocoating baths which contain a cationc amine-modified epoxy resin otainable by reacting(A) a diepoxy compound of an epoxy equivalent weight below 2000B) a compound monofunctionally reactive toward the epoxide groups and containign an alcoholic OH group, a phenolic OH group or an SH group, and(C) an amine,the components (A) and (B) being used in molar ratio of 10:1 to 1:1, preferably 4:1 to 1.5:1 and the positive charges being introduced by protonization of the reaction product and/or by use of amine salts as the component (C). The electrocoating baths used are distinguished by containing at least 7.5% by weight of a polyoxyalkylenepolyamine, the percentage by weight referring to the total amount of binders contained in the electrocoating bath.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: January 10, 1995
    Assignee: BASF Lacke+Farben AG
    Inventors: Gunther Ott, Udo Reiter, Walter Jouck, David J. Santure, Dieter Ruhl
  • Patent number: 5378335
    Abstract: The invention relates to a process for coating electrically conductive substrates, in which aqueous electrodeposition paints containing 1 to 15 percent by weight of electrically conductive carbon black and/or graphite having a primary particle diameter of less than 10 .mu.m in combination with up to 12 percent by weight of zinc powder or zinc flakes, with the percentages by weight relating to the total amount of binder and--if present--crosslinking agent contained in the electrodeposition paint, are employed.
    Type: Grant
    Filed: March 23, 1994
    Date of Patent: January 3, 1995
    Assignee: BASF Lacke+Farben Aktiengesellschaft
    Inventors: Monika Hoppe-Hoffler, Udo Strauss, Bernd-Rudiger Volkmann
  • Patent number: 5374340
    Abstract: The invention relates to a process for a cathodic electrocoating process, wherein the electrocoating bath contains at least 7.5% by weight of a polyoxyalkylenepolyamine or a mixture consisting of several polyoxyalkylenepolyamines of different chemical structures, the percentage by weight referring to the total amount of binders contained in the electrocoating bath.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: December 20, 1994
    Assignee: BASF Lacke + Farben AG
    Inventors: Gunther Ott, Udo Reiter, Walter Jouck, David J. Santure, Dieter Ruhl
  • Patent number: 5369190
    Abstract: Crosslinking components for cationic paint binders which are reaction products of hydroxyl-functional carbamate compounds with half-blocked diisocyanates are described. The carbamate compounds are reaction products of cyclic organic carbonates with aliphatic monoamines and/or diamines and/or triamines and/or tetraamines and/or alkanolamines, all such amines having primary and/or secondary amino groups. The crosslinking components produced according to the invention, in combination with resin components carrying hydroxyl groups and/or primary or secondary amino groups, preferably with those based on epoxide/amine adducts or containing similar molecular units, give binders which can be baked at temperatures of 140.degree. C. and higher.
    Type: Grant
    Filed: November 10, 1993
    Date of Patent: November 29, 1994
    Assignee: Vianova Kunstharz, A.G.
    Inventors: Helmut Honig, Herbert Matzer, Georg Pampouchidis, Willibald Paar
  • Patent number: 5356529
    Abstract: Electrodepositable compositions comprising active hydrogen-containing ionic resins, capped polyisocyanate curing agents and triorganotin catalysts are disclosed. The catalysts are liquid, can be easily incorporated into the electrodepositable compositions and surprisingly exhibit good catalytic activity at low levels.
    Type: Grant
    Filed: May 3, 1993
    Date of Patent: October 18, 1994
    Assignee: PPG Industries, Inc.
    Inventors: V. Eswarakrishnan, Robert R. Zwack, Edward R. Coleridge
  • Patent number: 5346796
    Abstract: A homogeneous liquid composition, for use in the preparation of liquid toners containing at least one charge director and in which the electrical properties of the charge director(s) is/are stabilized, comprises: (1) insulating non-polar carrier liquid compatible with liquid toners for electrostatic imaging; (2) at least one charge director other than an amine salt; and (3) at least one stabilizing component in an amount effective to stabilize the electrical properties of said at least one charge director, said component being selected from non-quaternary amine salts and being soluble in the carrier, e.g. diethylammonium chloride and isopropylamine dodecylbenzenesulfonate. The invention further relates to liquid toners for electrostatic imaging comprise thermoplastic resin particles dispersed in an insulating non polar carrier liquid, preferably a hydrocarbon having a volume resistivity above 10.sup.9 ohm-cm and a dielectric constant below 3.
    Type: Grant
    Filed: July 20, 1992
    Date of Patent: September 13, 1994
    Assignee: Spectrum Sciences B.V.
    Inventor: Yaacov Almog
  • Patent number: 5338419
    Abstract: An electrodeposition bath comprising a urethane of the formulaR.sub.1 --NHCOO--R.sub.2in whichR.sub.1 is alkyl or a group of the formulaB.sub.1 --NH--B.sub.2 --[X--B.sub.3 ].sub.n --,R.sub.2 is a group of the formulae --(C.sub.2 H.sub.4 O).sub.y --R.sub.1, --(C.sub.3 H.sub.7 O).sub.y --R or of the formula ##STR1## R is C.sub.1 -C.sub.18 -alkyl, Y is a number from zero to 4,B.sub.1 is hydrogen, alkyl or a group of the formula--COOR.sub.2,B.sub.2 and B.sub.3 may be identical or different and are C.sub.2 -C.sub.14 -alkylene,n is an integer from 0 to 5,X is --0--, --S--, --NH--or >N--(C.sub.1 -C.sub.4) alkyl,R.sub.3 is hydrogen, alkyl, alkenyl, hydroxyalkyl, phenyl or alkylphenyl,R.sub.4 and R.sub.5 may be identical or different and are hydrogen or C.sub.1 -C.sub.4 -alkyl andA is a direct bond or one of the groups --O--, --CH.sub.2 O- or --CH.sub.2 OCO--.The inclusion of these urethanes in the electrodeposition bath brings about a reduction in the number of surface defects on galvanized surfaces.
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: August 16, 1994
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Susanne Wehner, Heinz Klima, Michael Hoenel, Peter Ziegler, Gerd Walz
  • Patent number: 5331026
    Abstract: The present invention is directed to a process for producing an aqueous cathodic electrocoating composition comprisingA) mixingi) a powder comprising a dispersion of a pigment in a solid resinii) a principal resiniii) a crosslinker and optionallyiv) an additive selected from the group consisting of organic solvents, catalysts, wetting agents, conditioning agents, thickeners, rheology control agents, antioxidants, surfactants, leveling agents and mixtures thereofB) salting with an acid andC) dispersing in deionized water.
    Type: Grant
    Filed: June 11, 1993
    Date of Patent: July 19, 1994
    Assignee: BASF Corporation
    Inventors: James W. Benefiel, Peter D. Clark, Laura M. Lanni
  • Patent number: 5330627
    Abstract: A thermosetting coating composition containingA) one or more binders convertible into liquid or dissolved form at least at the curing temperature and containing acidic groups, basic groups or ionic groups of similar charge,B) one or more binders convertible into liquid or dissolved form at least at the curing temperature and containing basic groups where (A) contains acidic groups, acidic groups where (A) contains basic groups or ionic groups of like charge opposite to the charge of the ionic groups of (A), binder (B) being noninterdiffusible under storage and application conditions, but interdiffusible with binder (A) under hardening conditions, andC) optionally standard solvents, pigments and/or typical paint auxiliaries and/or additives which do not lead to any interdiffusion of the binders A) and B) under storage and application conditions,and a process for the production of coatings by application of the coating composition and subsequent thermal curing.
    Type: Grant
    Filed: September 9, 1993
    Date of Patent: July 19, 1994
    Assignee: Herberts G.m.b.H.
    Inventors: Roland Grutter, Reiner Bohmert, Rolf Reinecke