Patents by Inventor Maria G. Rau

Maria G. Rau 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: 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: 5208282
    Abstract: Aqueous synthetic resin formulations containingA) from 3 to 75% by weight of one or more synthetic resins,B) one or more organic compounds having two or more hydrazide groups,C) from 0 to 10% by weight, based on the synthetic resin A, of benzophenone or acetophenone or of one or more acetophenone or benzophenone derivatives which are not monoethylenically unsaturated or of a mixture of these active ingredients,D) effective amounts of emulsifiers or protective colloids or of a mixture of these active ingredients,E) not less than 5% by weight of water andF) from 0 to 85% by weight of finely divided fillers, with the proviso that the total amount of the monomers d polymerized in the one or more synthetic resins A and of component C is from 0.05 to 10% by weight, based on the one or more synthetic resins A, and the ratio of the number of moles of hydrazide groups of component B and the number of moles of the aldehyde and keto groups of the monomers c polymerized in the one or more synthetic resins A is from 0.
    Type: Grant
    Filed: May 13, 1991
    Date of Patent: May 4, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerd Rehmer, Maria G. Rau, Eckehardt Wistuba, Reinhard Baecher, Helmut Teichmann, Wilhelm F. Beckerle
  • Patent number: 5162415
    Abstract: Aqueous synthetic resin formulations essentially containA) from 3 to 75% by weight of one or more synthetic resins which are composed ofa) from 50 to 99.9% by weight of one or more unsaturated carboxylic or vinyl esters,b) from 0.1 to 12% by weight of one or more .alpha.,.beta.
    Type: Grant
    Filed: September 13, 1990
    Date of Patent: November 10, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerd Rehmer, Maria G. Rau, Eckehardt Wistuba, Reinhard Baecher, Lothar Matthaei
  • Patent number: 5159011
    Abstract: Aqueous formulations of copolymer latices and polyisocyanate dispersions, containingA) from 5 to 40% by weight of one or more synthetic resins of(a) from 0.1 to 20 parts by weight of one or more monoolefinically unsaturated monomers which carry one or more groups which are reactive with isocyanates and(b) from 80 to 99.9 parts by weight of one or more mono- or diolefinically unsaturated monomers which are copolymerizable with (a) and have no acidic hydrogen atoms,B) from 0.5 to 5% by weight of one or more finely divided, stabilized polyisocyanates,C) effective amounts of dispersants andD) from 5 to 40% by weight of one or more finely divided fillers,are used as coating materials for woven and nonwoven substrates.
    Type: Grant
    Filed: July 16, 1991
    Date of Patent: October 27, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Maria G. Rau, Rainer Blum, Gerd Louis