Patents by Inventor Erich Gulbins

Erich Gulbins has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5470899
    Abstract: A process for reducing the pH of anionic polyurethane dispersions which are stabilized by carboxylate or sulfonate groups, which comprises adding a compound which has from one to four ester groups but no acid group or acid halide or anhydride group to the dispersions.
    Type: Grant
    Filed: December 28, 1993
    Date of Patent: November 28, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Erich Gulbins, Karl Haeberle, Ulrike Licht, Alexander Wallon
  • Patent number: 5441775
    Abstract: Aqueous dispersions containA) from 20 to 90% by weight of a dispersed polymer having a glass transition temperature above 30.degree. C. andB) from 10 to 80% by weight of a tri-, tetra-, penta-or hexa(meth)acrylate of an alkoxylated, trivalent to hexavalent alcohol having a mean degree of alkoxylation of the hydroxyl groups of the alcohol, defined as the quotient of the number of alkoxy groups to the number of hydroxyl groups, ie. the functionality of the alcohol prior to the alkoxylation, of at least 0.5,the stated weights being based on the sum of A) and B).
    Type: Grant
    Filed: May 6, 1994
    Date of Patent: August 15, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Erich Beck, Gregor Ley, Erich Gulbins, Bernhard Schlarb, Edmund Keil, Matthias Lokai
  • Patent number: 5342915
    Abstract: Aqueous dispersions contain a polyurethane which consists essentially ofa) organic polyisocyanates and, if required, minor amounts of monoisocyanates,b) dihydroxy compounds having a molecular weight of from more than 500 to 10,000 g/mol and at least 2 carboxyl or carboxylate groups in the molecule and which are obtainable by reacting dihydroxy compounds with tetracarboxylic dianhydrides in a molar ratio of from 2:1 to 1.05:1,c) if required, polyhydroxy compounds which differ from (b) and have a molecular weight of from more than 500 to 5,000 g/mol,d) if required, compounds having at least one group which is reactive toward isocyanate and at least one anionic group or group convertible into an anionic group and having a molecular weight of from 60 to 500 g/mol ande) if required, compounds which differ from d) and e) and have at least 2 groups which are reactive toward isocyanate and a molecular weight of from 60 to 500 g/mol.
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: August 30, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrike Licht, Karl Haeberle, Erich Gulbins, Maria G. Rau, Gernot Franzmann, Michael Portugall
  • Patent number: 4894261
    Abstract: A multilayer coating is produced on a substrate by a process in which an aqueous dispersion containing(A) a carbonyl-containing copolymer of monoolefinically unsaturated compounds, not less than 10% by weight of which have carbonyl groups which react with hydrazide groups, and(B) polyhydrazides,is applied as a base coat to the substrate, the water is flashed off and one or more further conventional coats are applied to this base coat as a dispersion or solution, the solvent is flashed off and, if required, the resulting multilayer coating is baked for from 10 to 60 minutes at from 70.degree. to 180.degree. C.
    Type: Grant
    Filed: July 8, 1988
    Date of Patent: January 16, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Erich Gulbins, Gregor Ley
  • Patent number: 4808655
    Abstract: The present invention relates to aqueous binder dispersions for the preparation of, inter alia, paints and finishes, substantially containing(A) from 0.5 to 50% by weight of a phenolic resin precondensate,(B) from 20 to 70% by weight of a copolymer of predominant proportions of alkyl acrylates and/or methacrylates, minor proportions of comonomers with groups capable of crosslinking and other comonomers, the copolymer being in the form of a dispersion and being crosslinkable by a condensation reaction, and(C) from 10 to 70% by weight of a graft elastomer comprising a diene polymer as the base polymer and a copolymer of, substantially, styrene, acrylonitrile and C.sub.1 -C.sub.6 -alkyl acrylates and/or methacrylates, as the graft polymer, the graft elastomer being in the form of a dispersion, the percentages being based on the solids content of the total amount of (A), (B) and (C).
    Type: Grant
    Filed: August 28, 1987
    Date of Patent: February 28, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Erich Gulbins, Graham E. McKee, Gregor Ley
  • Patent number: 4623679
    Abstract: A binder which is suitable for coating agents and is based on a combination which is essentially free of protective colloids and consists of an aqueous primary dispersion of a synthetic polymer and a water-insoluble polycondensate of phenols and aldehydes, some of which may be replaced by ketones, is prepared by a process in which the phenolic components for the polycondensate are first mixed with an aqueous primary dispersion of a synthetic polymer which contains glycidyl, carbonyl, N-methylol, N-alkoxymethyl, ether, amino and/or hydrazo groups and may furthermore contain carboxyl or hydroxyl groups, and the polycondensation with the aldehydes (and ketones) is then carried out in this mixture, under conventional conditions.The binders prepared according to the invention are useful as binders for dispersion paints and coatings, in particular as heat-curable binders for metal finishes.
    Type: Grant
    Filed: June 13, 1985
    Date of Patent: November 18, 1986
    Assignee: BASF Aktiengesellschaft
    Inventors: Juergen Gimpel, Erich Gulbins, Gregor Ley
  • Patent number: 4530978
    Abstract: Surface coating binders which contain tertiary amino groups, blocked isocyanate groups, hydroxyl groups and ether groups and are water-soluble or water-dispersible as a result of partial or complete salt formation with an acid are prepared by copolymerization of a mixture comprising(A) an olefinically unsaturated compound which contains a tertiary amino group,(B) an N-(1-alkenyl)-isocyanate which is blocked with a CH-, OH- or NH-acidic blocking agent and(C) an adduct of an epoxy resin based on bisphenol A and epichlorohydrin, and an olefinically unsaturated carboxylic acid of 3 to 20 carbon atoms, a secondary amine and, if required, a saturated monocarboxylic acid of 1 to 20 carbon atoms, with or without one or more copolymerizable, olefinically unsaturated compounds not mentioned under (A), (B) and (C).These surface coating binders are particularly useful as self-crosslinking or externally crosslinking binders for the cathodic electrocoating of metal articles.
    Type: Grant
    Filed: September 13, 1983
    Date of Patent: July 23, 1985
    Assignee: Basf Aktiengesellschaft
    Inventors: Juergen Gimpel, Volker Schwendemann, Erich Gulbins
  • Patent number: 4495327
    Abstract: An aqueous cationic surface-coating system contains an olefinically unsaturated surface-coating binder having basic nitrogen groups, some or all of which are converted into salts with acid, a Co, Mn, Pb, Ce, Zr, Ca, Zn, Fe, Al, Cu, Ni or Cd complex, if appropriate in combination with an inhibitor and/or an initiator which supplies free radicals.This surface-coating system can be used for cathodic electrocoating or for conventional methods of surface-coating.
    Type: Grant
    Filed: July 18, 1983
    Date of Patent: January 22, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans-Uwe Schenck, Rainer Blum, Erich Gulbins, Fritz-Erdmann Kempter, Eberhard Schupp
  • Patent number: 4461880
    Abstract: Surface-coating binders based on a copolymer which contains tertiary amino groups, blocked isocyanate groups, hydroxyl groups and ether groups and which, due to partial or complete salification with an acid, is water-soluble or water-dispersible.The copolymer contains, as copolymerized units, an olefinically unsaturated compound possessing a tertiary amino group, an N-(alk-1-enyl) isocyanate blocked with a CH-, OH- or NH-acidic blocking agent, and an adduct of an epoxy resin based on bisphenol A and epichlorohydrin, andhaving a molecular weight of from 380 to 3,500, with an olefinically unsaturated alcohol of 3 to 20 carbon atoms, and with an olefinically unsaturated carboxylic acid of 3 to 20 carbon atoms, with or without one or more other copolymerizable olefinically unsaturated compounds, and has a mean molecular weight of from 1,000 to 20,000.
    Type: Grant
    Filed: August 23, 1982
    Date of Patent: July 24, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Juergen Gimpel, Volker Schwendemann, Hans-Uwe Schenck, Erich Gulbins
  • Patent number: 4363710
    Abstract: Polyadducts, free from epoxide groups, are obtained from ammonia and epoxide compounds by reacting 1 mole of ammonia with from 1.2 to 2.0 equivalents of epoxide, so that if diepoxide compounds are used products of the general formula (I) ##STR1## are obtained, while if triepoxides and/or tetraepoxide compounds are used, by themselves, or together with diepoxide compounds, products of the general formula II ##STR2## are produced; in these formulae, the E.sup.1 's are identical or different hydroxyl-containing divalent radicals and the E.sup.2 's are identical or different hydroxyl-containing trivalent or tetravalent radicals, resulting from the opening of the oxirane rings of epoxide compounds containing two, three or four epoxide groups in the molecule, n.sup.1, n.sup.3 and n.sup.5 are from 0 to 3, n.sup.2 and n.sup.4 are from 1 to 3 and X is 0 or 1, and one or more of the divalent radicals E.sup.1 in the general formlula (II) may or may not be replaced by polyvalent radicals E.sup.2.
    Type: Grant
    Filed: October 30, 1981
    Date of Patent: December 14, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Fritz E. Kempter, Eberhard Schupp, Hans-Uwe Schenck, Erich Gulbins
  • Patent number: 4340714
    Abstract: A process for the preparation of curable polyadducts, possessing basic nitrogen groups, wherein (A) monophenols and/or polyphenols, which contain groups of the general formula (I): ##STR1## where R.sup.1 and R.sup.2 are identical or different and each is hydrogen or methyl are reacted with (B) amines having one or more primary and/or secondary amino groups, and the adduct formed is reacted with (C) epoxide compounds having from 1 to 4 epoxide groups per molecule and having a molecular weight of at most 2,500, the ratio of the phenolic hydroxyl groups of (A) to epoxide groups of (C) being from 1:0.5 to 1:2 and the amine (B) being employed in such amount that the resulting polyadduct of (A), (B) and (C) contains from 0.1 to 5% by weight of basic nitrogen, and the use of the products, after protonation with an acid, as binders for the production of coatings, especially for the cathodic electrocoating of metal articles.
    Type: Grant
    Filed: May 22, 1981
    Date of Patent: July 20, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Eberhard Schupp, Fritz E. Kempter, Erich Gulbins
  • Patent number: 4336116
    Abstract: The invention concerns polyadducts and their use.The polyadducts, possessing nitrogen-basic groups, have a mean molecular weight of from 500 to 10,000 and contain groups, attached to aromatic rings, of the general formula (I) ##STR1## where R.sup.1 and R.sup.2 are identical or different and each is hydrogen or methyl.In particular, these polyadducts are used, after protonizing with an acid, as binders for the cathodic electrocoating of metal articles.
    Type: Grant
    Filed: October 17, 1980
    Date of Patent: June 22, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Eberhard Schupp, Fritz E. Kempter, Erich Gulbins
  • Patent number: 4315840
    Abstract: A process for the preparation of self-crosslinking, cathodic electrocoating binders by reacting polyether-polyols, which may or may not contain thio groups, with semi-blocked diisocyanates or partially blocked polyisocyanates, wherein the reaction products (A), containing blocked isocyanate groups, are reacted with a polyamine (B), some of whose amino groups may or may not be in the form of ketimine groups, in such a way that one or more amino groups of the polyamine (B) form a urea group with a blocked isocyanate group of the reaction product (A), and the self-cross-linking reaction product of (A) and (B) is converted into a water-dilutable form in the conventional manner by protonization with an acid.The coating binders prepared according to the invention may be used for cathodic electrocoating of metal articles.
    Type: Grant
    Filed: October 18, 1979
    Date of Patent: February 16, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Fritz E. Kempter, Eberhard Schupp, Erich Gulbins
  • Patent number: 4310645
    Abstract: Polyadducts, free from epoxide groups, are obtained from ammonia and epoxide compounds by reacting 1 mole of ammonia with from 1.2 to 2.0 equivalents of epoxide, so that if diepoxide compounds are used products of the general formula (I) ##STR1## are obtained, while if triepoxides and/or tetraepoxide compounds are used, by themselves, or together with diepoxide compounds, products of the general formula II ##STR2## are produced; in these formulae, the E.sup.1 's are identical or different hydroxyl-containing divalent radicals and the E.sup.2 's are identical or different hydroxyl-containing trivalent or tetravalent radicals, resulting from the opening of the oxirane rings of epoxide compounds containing two, three or four epoxide groups in the molecule, n.sup.1, n.sup.3 and n.sup.5 are from 0 to 3, n.sup.2 and n.sup.4 are from 1 to 3 and X is 0 or 1, and one or more of the divalent radicals E.sup.1 in the general formula (II) may or may not be replaced by polyvalent radicals E.sup.2.
    Type: Grant
    Filed: December 4, 1980
    Date of Patent: January 12, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Fritz E. Kempter, Eberhard Schupp, Hans-Uwe Schenck, Erich Gulbins
  • Patent number: 4297255
    Abstract: Adducts obtained by reacting an epoxide compound with guanidine or a guanidine derivative, using not less than 1 mole of guanidine or guanidine derivative per epoxide equivalent of the epoxide compound; the adducts may or may not be partially or completely neutralized by adding acid, and may additionally contain blocked isocyanate groups.The novel adducts may be used, in combination with a completely blocked polyisocyanate, aminoplast resin and/or phenoplast resin, as binders in coating agents, and for the cathodic electrocoating of metal articles.
    Type: Grant
    Filed: March 24, 1980
    Date of Patent: October 27, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans-Uwe Schenck, Erich Gulbins
  • Patent number: 4291147
    Abstract: Polyadducts, free from epoxide groups, are obtained from ammonia and epoxide compounds by reacting 1 mole of ammonia with from 1.2 to 2.0 equivalents of epoxide, so that if diepoxide compounds are used products of the general formula (I) ##STR1## are obtained, while if triepoxides and/or tetraepoxide compounds are used, by themselves, or together with diepoxide compounds, products of the general formula II ##STR2## are produced; in these formulae, the E.sup.1 's are identical or different hydroxyl-containing divalent radicals and the E.sup.2 's are identical or different hydroxyl-containing trivalent or tetravalent radicals, resulting from the opening of the oxirane rings of epoxide compounds containing two, three or four epoxide groups in the molecule, n.sup.1, n.sup.3 and n.sup.5 are from 0 to 3, n.sup.2 and n.sup.4 are from 1 to 3 and X is 0 or 1, and one or more of the divalent radicals E.sup.1 in the general formula (II) may or may not be replaced by polyvalent radicals E.sup.2.
    Type: Grant
    Filed: April 7, 1980
    Date of Patent: September 22, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Fritz E. Kempter, Eberhard Schupp, Hans-Uwe Schenck, Erich Gulbins
  • Patent number: 4260697
    Abstract: Surface-coating binders based on a reaction product of Mannich bases, obtained from polyhydric phenols, secondary amines and formaldehyde, with epoxy resins. The Mannich bases and/or the epoxy resins carry hydroxyl groups, bonded to aliphatic structures, which have been converted to urethane groups by reaction with partially blocked polyisocyanates. When protonized and diluted with water, the surface-coating binders may be used as cationic electrocoatings.
    Type: Grant
    Filed: August 10, 1978
    Date of Patent: April 7, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Fritz E. Kempter, Heinrich Hartmann, Erich Gulbins
  • Patent number: 4172193
    Abstract: Cathodic electrocoating binders based on polycondensation products which contain amino groups and which are, at least partially, in the form of their ammonium salts or quaternary ammonium salts.The polycondensation products containing amino groups are obtained by adduct formation of p-hydroxyacetophenone with polymers containing epoxide groups, followed by reaction of these adducts with formaldehyde and a secondary amine.The electrocoating binders of the invention may be used for coating metallic substrates and give coatings which are particularly corrosion-resistant and adhere particularly firmly.
    Type: Grant
    Filed: September 26, 1978
    Date of Patent: October 23, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Matthias Marx, Erich Gulbins
  • Patent number: 4137213
    Abstract: Pigment formulations and their use.The formulations contain pigments, organic solvents and from 10 to 80% by weight of a wetting agent consisting of a non-ionic organic compound which has a viscosity of from 500 to 10,000 mPa.s and has been produced by reacting an alkylated amide/formaldehyde reaction product and an epoxy resin, which may or may not be modified, in a weight ratio of from 9:1 to 1:9. They are used as additives in surface-coating binders, especially in cationic electrocoating finishes.
    Type: Grant
    Filed: January 31, 1977
    Date of Patent: January 30, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Fritz E. Kempter, Erich Gulbins, Armin Haag, Ruprecht Kroker
  • Patent number: 4134932
    Abstract: Surface-coating binders for cathodic electrocoating which comprise a protonized heat-curable reaction product (A), substantially free from epoxide groups, of(a) one or more Mannich bases, prepared from(a.sub.1) one or more polyhydric condensed phenols which may or may not contain ether groups.(a.sub.2) one or more secondary amines which contain one or more hydroxyalkyl groups, with or without one or more secondary amines which do not contain such groups, and(a.sub.3) formaldehyde or a formaldehyde donor, with(b) one or more epoxy resins,Which binder also contains from 1 to 40% by weight, based on the total of (A) + (B), of a water-insoluble non-ionic resin (B), free from epoxide groups and containing urethane groups, which resin has been obtained by reacting a partially blocked diisocyanate or higher polyisocyanate with a reaction product of a polyepoxide and one or more low molecular weight compounds containing SH and/or OH groups.
    Type: Grant
    Filed: March 9, 1978
    Date of Patent: January 16, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Fritz E. Kempter, Heinrich Hartmann, Erich Gulbins