Patents Assigned to BASF Lacke+Farben
  • Patent number: 5821315
    Abstract: Provided are compositions useful as paints which have excellent acid resistance and scratching resistance, and provide a good appearance. The thermoset compositions are comprised of a vinyl copolymer (A) comprised of lactone modified acrylic monomer and other monomer, a blocked polyisocyanate compound (B) which has been reacted with a mixture of malonic acid and acetoacetic acid, and an alkyl etherified amino resin (C).
    Type: Grant
    Filed: July 24, 1996
    Date of Patent: October 13, 1998
    Assignee: BASF Lacke & Farben, AG
    Inventors: Joichi Moriya, Fumi Maruyama, Kishio Shibato, Peter Betz
  • Patent number: 5820986
    Abstract: The invention relates to a method for the production and repair of multicoat special-effect coatings, in which the basecoat is produced exclusively by elecrostatic spraying, a coating material with a specific rheological behavior is employed as the basecoat and the repair is carried out with the aid of a spray application process in which a spray jet is produced which is distinguished in thatat most 40% of the coating droplets passing a measurement point which lies at the center of the spray jet and 300 mm away from the nozzle have a diameter which is less than 20 .mu.m and at least 5% of the coating droplets have a diameter which is greater than 60 .mu.m,at least 20% of the coating droplets passing the measurement point have a speed which is less than 6 m/s and at most 30% of the coating droplets have a speed of more than 10 m/s, andthe coating droplets have a momentum which is equal to at least 4.times.10.sup.-5 g cm s.sup.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: October 13, 1998
    Assignee: BASF Lacke + Farben AG
    Inventors: Heinz Topfel, Ewald Bischoff, Harry Libutzki, Jorge Wellmann, Dieter Herbst, Hans-Joachim Streitberger
  • Patent number: 5817370
    Abstract: Water dilutable binders, prepared by subjecting to free radical polymerization(A) from 20 to 90% by weight of a mixture of(a1) from 3 to 50% by weight of acrylic acid, methacrylic acid or a mixture of acrylic acid and methacrylic acid, and(a2) from 50 to 97% by weight of an ethylenically unsaturated monomer or a mixture of ethylenically unsaturated monomers,in the presence of(B) from 9.9 to 79.9% by weight of a halogen-free polyolefin free from maleic anhydride groups, or a mixture of halogen-free polyolefins free from maleic anhydride groups, and(C) from 0.1 to 10% by weight of a free radical initiator or a mixture of free radical initiatorsand, after neutralization of at least 20% of the carboxyl groups contained in the resulting polymerization product, dispersing the polymerization product in water, the sum of the percentages by weight of components (A), (B) and (C) and (a1) and (a2) in each case always being 100% by weight.
    Type: Grant
    Filed: December 9, 1996
    Date of Patent: October 6, 1998
    Assignee: BASF Lacke + Farben, AG
    Inventors: Horst Hinzte-Bruning, Harald Borgholte, Hans-Josef Oslowski, Albin Berger, Michael-Wolfgang Muller
  • Patent number: 5817733
    Abstract: The present invention relates to water-dilutable polyurethane resins which are characterized in that they have been prepared using diols of the formula (I) ##STR1## in which R.sub.1 and R.sub.2 are an identical or different radical and are an alkyl radical having 1 to 18 carbon atoms, an aryl radical or a cycloaliphatic radical, with the proviso that R.sub.1 and/or R.sub.2 may not be methyl,and/or diols of the formula (II) ##STR2## in which R.sub.3, R.sub.4, R.sub.6 and R.sub.7 are each identical or different radicals and R.sub.3, R.sub.4, R.sub.6 and R.sub.7 are an alkyl radical having 1 to 6 carbon atoms, a cycloalkyl radical or an aryl radical and R.sub.5 is an alkyl radical having 1 to 6 carbon atoms, an aryl radical of an unsaturated alkyl radical having 1 to 6 carbon atoms, and n is either 0 or 1.
    Type: Grant
    Filed: July 18, 1996
    Date of Patent: October 6, 1998
    Assignee: BASF Lacke & Farben, AG
    Inventor: Heinz-Peter Rink
  • Patent number: 5800873
    Abstract: The present invention relates to a process for the production of sealed packaging containers of plastics films, using a sealing coating based on an aqueous dispersion or solution of acrylate copolymer, where the aqueous dispersion of acrylate copolymer is prepared by emulsion polymerization offrom 1 to 15% by weight of .alpha.,.beta.-ethylenically unsaturated carboxylic acids,from 40 to 69% by weight of alkyl esters of acrylic acid having 1-12 carbon atoms in the alkyl radical,from 0 to 55% by weight of alkyl esters of methacrylic acid having 1-12 carbon atoms in the alkyl radical and/or vinylaromatics, andfrom 0 to 25% by weight of further monomers,the sum of the monomers in each case being 100% by weight. The glass transition temperature being not more than 50.degree. C.
    Type: Grant
    Filed: October 3, 1994
    Date of Patent: September 1, 1998
    Assignee: BASF Lacke+Farben AG
    Inventors: Nicolaas Leonardus Maria Enthoven, Jurgen Erwin Lemke, Peter Eric van Rijn, Henricus Peturs Gemma van Sommeren
  • Patent number: 5792827
    Abstract: The present invention relates to addition products ofA) oligomers having at least two acrylic ester and/or methacrylic ester groups per molecule andB) diamines having a primary and a tertiary amino group,the ratio of primary amino groups of B) to the (meth)acrylic double bonds of A) being 0.01:1 to 0.2:1, preferably 0.03:1 to 0.1:1.The invention also relates to processes for the preparation of the addition products, to radiation-curable surface coating compositions based on the addition products and to the use of the surface coating compositions for woodcoating and papercoating.
    Type: Grant
    Filed: August 14, 1995
    Date of Patent: August 11, 1998
    Assignee: BASF Lacke + Farben, AG
    Inventors: Horst Hintze-Bruning, Klaus Cibura, Wolfgang Baltus
  • Patent number: 5792804
    Abstract: The present invention relates to a process for the preparation of an aqueous coating composition containing a carboxyl-containing epoxy resin having an acid number in the range from 5 to 200 mg of KOH/g and having an epoxide equivalent weight in the range from 1000 to 40,000, optionally crosslinking agents, organic solvents, optionally conventional assistants and additives, and optionally pigments and fillers. The organic binder solution is neutralized using a tertiary amine in the temperature range from 60.degree. C. to 120.degree. C. This is followed by dispersion in water, with the proviso that at least 95% of the epoxide groups of the epoxy resin have been reacted. The aqueous coating compositions prepared by the process are preferably used for coating cans.
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: August 11, 1998
    Assignee: BASF Lacke + Farben, AG
    Inventors: Klaus Cibura, Hans Jurgen Figge, Regina Willmer, Holger Herbert Dartmann
  • Patent number: 5786033
    Abstract: To form multi-layer paint films which have a good finished appearance on objects which are to be painted, using an aqueous base coat composition. An aqueous base coat composition which contains aqueous polyurethane resin and rheology control agent, the electrical conductivity measured in an aqueous solution of 3% by weight concentration of which is 700-900 mS/cm, is painted and then the paint film is formed, a transparent top coat is painted on the base coat paint film obtained in this way, and the base coat and the top coat are baked at the same time.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: July 28, 1998
    Assignee: BASF Lacke + Farben, AG
    Inventors: Achim Gast, Kazuki Shiomi, Hitoshi Taniguchi
  • Patent number: 5780541
    Abstract: The invention relates to nonaqueous paints which comprise(A) a hydroxyl group-containing synthetic resin or a mixture of hydroxyl group-containing synthetic resins(B) an amino resin or a mixture of amino resins(C) a blocked polyisocyanate or a mixture of blocked polyisocyanates, and(D) a pigment or a mixture of pigments, and are characterized in that component (C) contains both isocyanate groups blocked with a blocking agent (I) and isocyanate groups blocked with a blocking agent (II), in which contextthe blocking agent (I) is a dialkyl malonate or a mixture of dialkyl malonates,the blocking agent (II) is a blocking agent which is different from (I) and contains active methylene groups, or is an oxime, or is a mixture of these blocking agents, andthe ratio of equivalents between the isocyanate groups blocked with (I) and the isocyanate groups blocked with (II) is between 1.0:1.0 and 9.0:1.0.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: July 14, 1998
    Assignee: BASF Lacke + Farben, AG
    Inventors: Peter Mayenfels, Georg Wigger, Fritz Bartol, Ulrike Rockrath, Ulrich Poth
  • Patent number: 5767188
    Abstract: Water-based primer composition made up of (A) a water-compatibilised modified polyolefin type resin, which is a modified polyolefin resin modified with an .alpha.,.beta.-unsaturated carboxylic acid, of a saponification value of 10-60 mg KOH/g, a number average molecular mass of 4000-30,000 and a degree of chlorination of 0-30 wt %, water-compatibilised by means of an amine compound, and if necessary additionally by a surfactant, (B) a water-compatibilised acrylic resin of a glass transition temperature of -50.degree. to 20.degree. C., and (C) a water-compatibilised polyurethane resin of a break elongation of 200-600%, and if necessary an additional curing agent, in which the contents of the different components are (A) 25-70 wt %, the sum of (B) and (C) 30-75 wt %, and the ratio by weight of (B)/(C) 100/0-50/50.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: June 16, 1998
    Assignee: BASF Lacke +Farben, AG
    Inventors: Joshimasa Kamikuri, Ulrich Hermann, Kazuyoshi Furuuchi, Toshihiko Nakamishi
  • Patent number: 5763546
    Abstract: The invention relates to copolymers containing on average 1.25 to 30 functional groups per molecule and a number average molecular weight of 1500 to 6000, which copolymers can be prepared by free-radical solution polymerization at 130.degree. to 200.degree. C. from 5 to 25% by weight of vinyl ester, 10 to 50% by weight of vinyl aromatic, 10 to 40% by weight of functional, monomers and, if desired further monomers, in which the vinyl ester is initially introduced and the remaining monomers are metered in for all monomers over a monomer addition period which is of the same length in the following manner: The amount of acrylate monomers added per unit of time remains constant. The amount of vinyl aromatic added over the first third of the monomer addition period is 15 to 30% by weight, the amount added over the second third is 25 to 40% by weight, and the amount added over the last third is 35 to 60% by weight, each relative to the total amount of vinyl aromatic.
    Type: Grant
    Filed: August 7, 1992
    Date of Patent: June 9, 1998
    Assignee: BASF Lacke+Farben, AG
    Inventors: Werner-Alfons Jung, Peter Hoffmann
  • Patent number: 5763004
    Abstract: Also disclosed is an appliance for introducing sealing compound into lug caps, the appliance containing a turntable for accommodating the cap, and an injection unit, the injection unit containing a nozzle block, which has annularly arranged injection nozzles, and a delivery device for the sealing compound, the turntable and the nozzle block being arranged so as to be centered and the nozzle block being rotatable in the same direction as the turntable.The invention also relates to a process for introducing sealing compound into lug caps and to the use of the appliance for injecting sealing compound into lug caps.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: June 9, 1998
    Assignee: BASF Lacke + Farben, AG
    Inventor: Erwin Hammen
  • Patent number: 5759372
    Abstract: The invention relates to aqueous electrodeposition coating materials comprising cathodically depositable synthetic resins and further comprising a reaction product (A) and a polymerization initiator (B) which forms free radicals, wherein the cathodically depositable synthetic resin is different from the reaction product (A), and the reaction product (A) is prepared by reacting(a) a polyisocyanate or a mixture of polyisocyanates with(b) an organic compound which contains both at least one ethylenically unsaturated double bond and at least one active hydrogen atom per molecule, or a mixture of such organic compounds, and(c) an organic compound which contains both at least one active hydrogen atom and at least one tertiary amino group and/or at least one ketimine and/or at least one aldimine group per molecule, or a mixture of such organic compounds, and if desired(d) an organic compound which is different from (b) and (c) and contains at least one active hydrogen atom per molecule, or a mixture of such organic
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: June 2, 1998
    Assignee: BASF Lacke + Farben AG
    Inventors: Hardy Reuter, Gunther Ott, Walter Jouck
  • Patent number: 5759631
    Abstract: Coating composition comprising(A) at least one hydroxyl group-containing polyacrylate resin obtained by polymerizing(a) from 5 to 80% by weight of a cycloaliphatic ester of methacrylic acid and/or acrylic acid, or a mixture of such monomers,(b) from 10 to 50% by weight of a hydroxyl group-containing alkyl ester of methacrylic acid and/or acrylic acid, or mixtures of such monomers,(c) from 0 to 25% by weight of a hydroxyl group-containing, ethylenically unsaturated monomer, different from (a) and (b), or a mixture of such monomers,(d) from 5 to 80% by weight of an aliphatic ester of methacrylic and/or acrylic acid, different from (a)-(c), or a mixture of such monomers,(e) from 0 to 40% by weight of an aromatic vinyl hydrocarbon, different from (a)-(d), or a mixture of such monomers, and(f) from 0 to 40% by weight of an additional ethylenically unsaturated monomer, different from (a)-(e), or a mixture of such monomers,and(B) at least one crosslinking agent.
    Type: Grant
    Filed: September 3, 1996
    Date of Patent: June 2, 1998
    Assignee: BASF Lacke+Farben AG
    Inventors: Heinz-Peter Rink, Michael Brunnemann
  • Patent number: 5759630
    Abstract: The present invention relates to a process for the production of textured coatings on plastics surfaces using coating compositions based on hydroxyl group-containing binders and polyisocyanates, and using pulverulent texturing agents.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: June 2, 1998
    Assignee: BASF Lacke + Farben, AG
    Inventors: Annegret Vosskuhl, Bernhard Rubbert
  • Patent number: 5753726
    Abstract: Epoxy resins for preparing water-dispersible binders for cathodic electrodeposition coating materials, the epoxy resin being preparable by reacting a) polyepoxides having at least one glycidyl group per molecule b) and, optionally, up to 60% by weight, based on the overall epoxy resin reaction product, of aliphatic and/or alicyclic hydroxy compounds having preferably two or on average less than two hydroxyl groups per molecule and a molecular weight of less than 9000 g/mol, c) in the presence of a catalyst consisting of neutral metal salts, such as alkali metal salts and alkaline earth metal salts, zinc salts and nickel salts of tetrafluoroboric, tetrachloroboric, hexafluoro- antimonic,hexachloroantimonic,hexafluorophosphoric, perchlorate and periodic acid, and d) adding a deactivating agent which prevents the epoxy groups reacting further or effectively reduces the rate of such reaction as soon as the phenolic hydroxyl groups have already substantially reacted and at least 0.
    Type: Grant
    Filed: December 13, 1996
    Date of Patent: May 19, 1998
    Assignee: BASF Lacke + Farben, AG
    Inventors: Hardy Reuter, Walter Jouck, Gunther Ott
  • Patent number: 5739214
    Abstract: The present invention relates to radiation-curable coating compositions comprising(A) from 20 to 50% by weight of at least one prepolymer containing at least two ethylenically unsaturated double bonds,(B) from 20 to 60% by weight of at least one cationically curing epoxy resin,(C) from 10 to 30% by weight of at least one ketonic and/or ketone-formaldehyde resin,(D) from 5 to 40% by weight of at least one reactive diluent, and(E) from 5 to 10% by weight of a mixture of at least one cationic polymerization initiator and at least one free-radical polymerization initiator,the sum of the proportions by weight of components A to E being in each case 100% by weight.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: April 14, 1998
    Assignee: BASF Lacke + Farben, AG
    Inventor: Stephan Schunck
  • Patent number: 5736193
    Abstract: The present invention relates to solderable wire-coating compositions based on hydroxyl group-containing polyesters, blocked polyisocyanates, organic solvents and catalysts, which are characterized in that they containA) from 7 to 25% by weight of hydroxyl group-containing polyesters,B) from 55 to 70% by weight of a fully blocked aromatic diisocyanate adduct or of a plurality of fully blocked aromatic diisocyanate adducts,C) from 0.1 to 3% by weight of catalysts,D) from 1 to 8% by weight of a polyol or of a plurality of polyols, andE) from 1 to 36.9% by weight of an alkylene carbonate or of a plurality of alkylene carbonates,the total weight of the wire-coating compositions in each case being 100% by weight.The present invention also relates to a process for the continuous coating of wires using the solderable wire-coating compositions described.
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: April 7, 1998
    Assignee: BASF Lacke +Farben, AG
    Inventors: Michael Schink, Klaus Wilhelm Lienert, Joachim Runge, Silvia Hentschel
  • Patent number: 5728283
    Abstract: The invention relates to aqueous eletrocoating ?sic! compositions containing cathodically depositable synthetic resins, which electrocoating compositions are characterized in that they contain polymer microparticles which have a particle size of 0.01 to 10 .mu.m and are preparable by reacting(a) a polyisocyanate or a mixture of polyisocyanates with(b) an organic compound containing not only at least one ethylenically unsaturated double bond but also at least one active hydrogen atom per molecule or a mixture of such organic compounds and(c) an organic compound containing not only at least one active hydrogen atom but also at least one tertiary amino group and/or at least one ketimine group and/or at least one aldimine group per molecule or a mixture of such organic compounds and, if desired,(d) an organic compound other than (b) and (c) containing at least one active hydrogen atom per molecule or a mixture of such organic compounds.
    Type: Grant
    Filed: August 26, 1996
    Date of Patent: March 17, 1998
    Assignee: BASF Lacke + Farben, AG
    Inventors: Hardy Reuter, Gunther Ott, Walter Jouck
  • Patent number: 5716678
    Abstract: A process is disclosed for producing a double-layered covering lacquer by using a transparent covering lacquer containing a hydroxyl group-containing polyacrylate resin produced by polymerizing (a) 10 to 51% by weight 4-hydroxy-n-butylacrylate or 4-hydroxy-n-butylmethacrylate or a mixture of 4-hydroxy-n-butylacrylate and 4-hydroxy-n-butylmethacrylate; (b) 0 to 36% by weight of a hydroxyl group-containing ester of acrylic acid different from (a) or a hydroxyl group-containing ester of methacrylic acid or a mixture of such monomers; (c) 28 to 85% by weight of an aliphatic or cycloaliphatic ester of methacrylic acid different from (a) and (b) with at least 4 C atoms in the alcohol residue or a mixture of such monomers; (d) 0 to 3% by weight of an ethylenically unsaturated carboxylic acid or a mixture of ethylenically unsaturated carboxylic acids and (e) 0 to 20% by weight of an ethylenically unsaturated monomer different from (a), (b), (c) and (d) or a mixture of such monomers, into a polyacrylate resin with a h
    Type: Grant
    Filed: November 17, 1995
    Date of Patent: February 10, 1998
    Assignee: BASF Lacke + Farben, AG
    Inventors: Ulrike Rockrath, Georg Wigger, Fritz Bartol, Peter Betz, Wilfried Stubbe, Angelika Bartelt