Patents by Inventor Jorg Wabbels

Jorg Wabbels 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).

  • Copolymers which contain hydroxyl groups and a method of producing them
    Patent number: 6162886
    Abstract: This invention relates to copolymers which contain hydroxyl groups and which are based on vinyl esters of monocarboxylic acids, wherein the copolymers which contain hydroxyl groups have an OH number of 110-170 mg KOH/g, an acid number of 5-35 mg KOH/g and a number average molecular weight M.sub.n of 1500-8000 g/mole and are obtainable by the polymerisation of A) 5-20% by weight of one or more vinyl esters of saturated monocarboxylic acids, B) 10-30% by weight of one or more aromatic vinyl hydrocarbons, C) 41-55% by weight of hydroxy-functional, polymerisable, unsaturated monomers, and D) 0-40% by weight of further polymerisable, unsaturated monomers, wherein component C) contains C1) 40-70% by weight of one or more hydroxyalkyl esters of .alpha.,.beta.-unsaturated monocarboxylic acids, C2) 1-10% by weight of one or more lactones, and C3) 30-55% by weight of one or more reaction products of an .alpha.,.beta.-unsaturated monocarboxylic acid with a glycidyl ester of a saturated .alpha.,.alpha.
    Type: Grant
    Filed: January 29, 1998
    Date of Patent: December 19, 2000
    Assignee: Herberts Gesellschaft mit Beschrankter Haftung
    Inventors: Gerhard Bremer, Hermann Kerber, Manfred Krumme, Olaf Ley, Werner Stephan, Jorg Wabbels
  • .beta.-keto-ester-esterified polyol with polymerized monomers
    Patent number: 5677379
    Abstract: A binder composition for coating agents containsA.sub.1) C--H-acid compounds obtainable by polymerization of hydroxyfunctional and non-hydroxyfunctional monomers, polyols and .beta.-keto carboxylic acid esters and subsequent esterification of the hydroxy groups with the .beta.-keto carboxylic acid esters,A.sub.2) C--H-acid compounds obtainable by transesterification of polyols with .beta.-keto carboxylic acid esters,.alpha.,.beta.-unsaturated compounds with at least two groups having the formulaR.sub.1 R.sub.2 C.dbd.CR.sub.3 --CO--bonded to at least one additional group R.sub.1 R.sub.2 C.dbd.CR.sub.3 --CO-- via the radical of a polyalcohol, polyamine or amino alcohol,C) polyglycidyl compound,D) polyamine hardeners,E) Lewis or Bronstedt bases andF) polysiloxane compounds.
    Type: Grant
    Filed: December 20, 1995
    Date of Patent: October 14, 1997
    Assignee: Herberts Gesellschaft mit beschrankter Haftung
    Inventors: Heinz-Dietholf Becker, Gerhard Bremer, Carmen Flosbach, Hermann Kerber, Walter Schubert, Werner Stephan, Jorg Wabbels