Patents Assigned to Borchers GmbH
  • Patent number: 7344588
    Abstract: The invention relates to a process for preventing skinning of a coating composition comprising adding an anti-skinning agents containing mixtures of organic compounds (combinations of additives), whereby the organic compounds are selected from the groups of organic hydroxylamines, and ?-dicarbonyl compounds and/or selected derivatives of formic acid to the coating composition.
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: March 18, 2008
    Assignee: Borchers GmbH
    Inventors: Andreas Steinert, Peter Manshausen
  • Patent number: 6916876
    Abstract: The invention relates to a powdered thickener preparation based on polyurethane, which can be incorporated particularly well into water-based paints and lacquers and into other aqueous systems, and to their use as rheological additives for thickening preferably aqueous systems.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: July 12, 2005
    Assignee: Borchers GmbH
    Inventors: Peter Manshausen, Frank Sauer, Thomas Steinhoff, Jan Mazanek, Christian Wamprecht, Christel Spinger, Uwe Priesnitz, Peter Happe
  • Patent number: 6849205
    Abstract: The present invention relates to a coating composition containing an oxidatively drying binder and, as anti-skinning agents, a mixture of A) an aliphatic amine corresponding to formula (Ia) and/or its salts corresponding to formula (Ib): ?wherein R1, R2 and R3 each independently of the others represents hydrogen (H); a linear or branched C1-C20-alkyl radical which is optionally unsaturated or which is optionally mono- or poly-substituted by a hydroxyl radical, an alkoxy radical, an amine radical corresponding to the formula N(R1)(R2), or a C5-C7-cycloalkyl radical, and A? represents a salt-forming anion, and B) with a compound corresponding to formula (II) ?wherein R1 and R4 each independently of the other represents hydrogen (H), a C1-C4-alkyl radical, a C6-C24-aryl radical or a C5-C7-cycloalkyl radical, a hydroxyl radical or a C1-C4-alkoxy radical, —O? (oxygen anion), R2 represents H, a C1-C4-alkyl radical, or A? (anion), R3 represents H, a C1-C4-alkyl radical, and n represents 0, 1 or 2.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: February 1, 2005
    Assignee: Borchers GmbH
    Inventor: Andreas Steinert
  • Patent number: 6730157
    Abstract: The invention relates to anti-skinning agents containing mixtures of organic compounds (combinations of additives), whereby the organic compounds are selected from the groups of organic hydroxylamines, and &bgr;-dicarbonyl compounds and/or selected derivatives of formic acid and also relates to compositions containing them, especially oxidatively drying paints or coating compositions.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: May 4, 2004
    Assignee: Borchers GmbH
    Inventors: Andreas Steinert, Peter Manshausen
  • Patent number: 6224659
    Abstract: The present invention relates to compositions containing oxidatively drying binders and, as anti-skinning additives, tin(II) and tin(IV) compounds corresponding to formulas (I) and (II) R1—COO—Sn—OOC—R2  (I), and (R1—COO)(R2—COO)n—Sn(R3)(R4)m  (II), wherein R1, R2, R3 and R4 are the same or different and represent linear or branched C1-C18 alkyl, C5-C7 cycloalkyl or phenyl, n and m are the same or different and have a value of 0, 1 or 2 and n+m=2, wherein the additives are present on the surface of the compositions as opposed to being mixed throughout the compositions.
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: May 1, 2001
    Assignee: Borchers GmbH
    Inventors: Günter Link, Dirk Edelmann
  • Patent number: 6090876
    Abstract: The present invention relates to aqueous thickener compositions for adjusting the rheology of aqueous water-dilutable systems which containA) a polyurethane thickening agent,B) a nonionic emulsifier,C) a compound corresponding to formula (I) ##STR1## wherein, independently of one another, R.sub.1 represents a C.sub.1 -C.sub.6 alkyl group or a C.sub.4 -C.sub.6 cycloalkyl group,R.sub.2 represents a C.sub.1 -C.sub.6 alkyl group or a C.sub.4 -C.sub.6 cycloalkyl group, andn is an integer from 1 to 6, andD) water and optionally another water-dilutable compound.The present invention also relates to the use of these aqueous thickening compositions for thickening aqueous resin systems.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: July 18, 2000
    Assignee: Borchers GmbH
    Inventors: Gunter Link, Dirk Edelmann, Alain Pattou
  • Patent number: 6063841
    Abstract: The invention relates to the use of special vanadium compounds as siccatives for oxidatively drying lacquers. These drying agents (siccatives) are ionogenic in nature and contain polyvalent cations of vanadium or vanadium oxide and anionic organic acid groups or other organic anions.
    Type: Grant
    Filed: April 2, 1998
    Date of Patent: May 16, 2000
    Assignee: Borchers GmbH
    Inventors: Gunter Link, Dirk Edelmann, Eberhard Stumpp
  • Patent number: 5985018
    Abstract: The present invention relates to coating compositions containing oxidatively drying binders and anti-skinning agents corresponding to formula (Ia) or (Ib) ##STR1## wherein Y.sub.1 and Y.sub.2 are the same or different and represent hydrogen, chlorine or fluorine,X.sup..sym. represents a group corresponding to formula I ##STR2## and R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are the same or different and represent hydrogen, a C.sub.1 -C.sub.10 linear or branched alkyl group that may contain one or more hydroxy groups, an aryl group or a C.sub.5 -C.sub.7 cycloalkyl group.The present invention also relates to anti-skinning agent mixtures containing these anti-skinning agents.
    Type: Grant
    Filed: September 17, 1998
    Date of Patent: November 16, 1999
    Assignee: Borchers GmbH
    Inventors: Gunter Link, Dirk Edelmann
  • Patent number: 5759252
    Abstract: The present invention relates to compositions containingA) 10 to 90 wt. % of one or more metal salts of long chain carboxylic acids corresponding to formula (I)(M.sup.n+)X.sup.-).sub.n (I),whereinM represents a metal cation,x represents a C.sub.6 -C.sub.14 aliphatic and/or aromatic carboxylate andn represents an integer from 1 to 5, andB) 10 to 90 wt. % of a carboxylic acid ester corresponding to formula (II) ##STR1## wherein R.sup.1 represents a saturated or unsaturated aliphatic C.sub.14 -C.sub.22 residue andR.sup.2 represents a C.sub.1 -C.sub.4 alkyl group.The present invention also relates to a process for the production of these mixtures and to their use as drying agents (siccatives) in oxidatively drying coating compositions (lacquers).
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: June 2, 1998
    Assignee: Borchers GmbH
    Inventors: Dirk Edelmann, Alain Pattou, Gunter Link