Patents by Inventor Joachim Krobb

Joachim Krobb 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: 6451141
    Abstract: The invention relates to a method of producing seals and coatings, and of bonding tiles and floor coverings, in which aqueous dispersions containing at least 20% by weight of filler and comprising a polymer mixture of a) an acrylate polymer A having a K value of from 5 to 55 and a glass transition temperature of below −10° C. and b) an acrylate copolymer having a glass transition temperature of from −50 to +50° C., are applied as sealants, coating materials or single-side adhesives. The compositions which are used, based on the filler-containing dispersions of the polymer mixture, are notable in processing for improved fixing in the wet and dry state, high heat stability, good adhesion to rubber and, since they are essentially free from organic solvents, plasticizers and resins, by a high level of environment-friendliness.
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: September 17, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Joachim Krobb, Peter Fickeisen, Bernd Däumer, Jürgen Barwich, Eckehardt Wistuba
  • Patent number: 5654361
    Abstract: Polymer prepared by anionic polymerization and having a number average molecular weight of from 300,000 to 10,000,000 contain, as components,from 10 to 100% by weight of an ethylenically unsaturated vinyl-aromatic a),from 0 to 90% by weight of an aliphatic diene having two conjugated double bonds b) andfrom 0 to 30% by weight of further ethylenically unsaturated monomers c).
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: August 5, 1997
    Assignee: BASF Aktiengesellschaft
    Inventors: Binnur Gunesin, Johannes Dobbelaar, Uwe Dittrich, Joachim Krobb
  • Patent number: 5536788
    Abstract: Carboxyl-containing isobutene copolymers are obtainablea) by cationic polymerization of a mixture of from 1 to 99 mol % of isobutene and from 99 to 1 mol % of a 2-methylalk-1-ene at less than 20.degree. C. in the presence of a halogen-containing Lewis acid andb) subsequent grafting of the isobutene copolymer obtainable in this manner with an .alpha.,.beta.-ethylenically unsaturated carboxylic acid or carboxylic acid derivative at above 100.degree. C. and in the presence of a free radical initiator.Such carboxyl-containing isobutene copolymers are particularly suitable as adhesive raw materials or as sealing compounds.
    Type: Grant
    Filed: June 13, 1995
    Date of Patent: July 16, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Deckers, Hans-Joachim Muller, Roger Klimesch, Eckehardt Wistuba, Heinz Plaumann, Erich Kolk, Gunther Isbarn, Karl-Heinz Fauth, Joachim Krobb
  • Patent number: 5473022
    Abstract: Carboxyl-containing isobutene copolymers are obtainablea) by cationic polymerization of a mixture of from 1 to 99 mol % of isobutene and from 99 to 1 mol % of a 2-methylalk-1-ene at less than 20.degree. C. in the presence of a halogen-containing Lewis acid andb) subsequent grafting of the isobutene copolymer obtainable in this manner with an .alpha.,.beta.-ethylenically unsaturated carboxylic acid or carboxylic acid derivative at above 100.degree. C. and in the presence of a free radical initiator.Such carboxyl-containing isobutene copolymers are particularly suitable as adhesive raw materials or as sealing compounds.
    Type: Grant
    Filed: September 2, 1994
    Date of Patent: December 5, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Deckers, Hans-Joachim Muller, Roger Klimesch, Eckehardt Witsuba, Heinz Plaumann, Erich Kolk, Gunther Isbarn, Karl-Heinz Fauth, Joachim Krobb
  • Patent number: 5100948
    Abstract: Aqueous formulations suitable as sealing compounds or adhesives for ceramic tiles essentially containA) from 3 to 30% by weight of plastics particles which consist ofa) from 0.1 to 4% by weight of one or more mercaptosilanes of the general formula I ##STR1## where n is from 1 to 8, R.sup.1 and R.sup.2 are hydrogen and/or C.sub.1 -C.sub.4 -alkyl, R.sup.3, R.sup.4 and R.sup.5 are C.sub.1 -C.sub.6 -alkyl and/or C.sub.1 -C.sub.6 -alkoxy, with the proviso that one or more of the radicals R.sup.3 to R.sup.5 is alkoxy, andb) ethylenically unsaturated monomers capable of undergoing free radical polymerization, as the residual amount,the polymer having a glass transition temperature of from -60 to +40.degree. C.,B) from 40 to 90% by weight of an inorganic filler,C) an effective amount of an emulsifier,D) from 0 to 15% by weight external plasticizer andE) from 5 to 40% by weight of water.
    Type: Grant
    Filed: June 27, 1990
    Date of Patent: March 31, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Oral Aydin, Rainer Hummerich, Joachim Krobb, Michael Portugall, Falko Ramsteiner, Albrecht Zosel