Patents by Inventor Krystyna Preuss

Krystyna Preuss 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).

  • Mildew-resistant sealing compound formulations containing a benzothiophene-2-cy-clohexylcarboxamide-s,s-dioxide
    Publication number: 20050003205
    Abstract: The invention relates to mildew-resistant sealing compounds, in particular with a base of silicone, urethane and/or an acrylic base, which contain a benzothiophene-2-cyclohexylcarboxamide-S,S-dioxide.
    Type: Application
    Filed: July 3, 2002
    Publication date: January 6, 2005
    Inventors: Peter Wachtler, Markus Putzer, Thomas Augustin, Krystyna Preuss
  • RTV 1K compositions which are stable in storage in the absence of moisture and form elastomers which can be painted
    Patent number: 4985476
    Abstract: Polydiorganosiloxane compositions which are stable in storage with exclusion of moisture and which are curable with water or atmospheric air are useful to produce paintable joint sealing compounds and coating composition and the composition is a mixture of .alpha., .omega.-dihydroxy-polydiorganosiloxanes, carboxylic acid amido alkylalkoxy silicon compounds as cross-linking agents, complex titanic acid esters and filler which comprises a precipitated, hydrophobicized chalk whose residual moisture has been removed before contact with the titanic acid esters and cross-linking agents in the mixture.
    Type: Grant
    Filed: October 17, 1989
    Date of Patent: January 15, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventors: Robert Endres, Wilhelm Weber, Krystyna Preuss
  • One component polysiloxane RTV compositions hardening with elimination of oximes
    Patent number: 4912153
    Abstract: Polyorganosiloxane compositions which can be stored in the absence of moisture and which harden rapidly in the presence of moisture, comprising a mixture of(1) 100 parts by weight of an .alpha.,.omega.-dihydroxypolydimethylsiloxane having a viscosity of from 0.1 to 1000 Pas,(2) 0 to 100 parts by weight of an .alpha.,.omega.-bis-(trimethylsiloxy)-polydimethylsiloxane having a viscosity of from 0.04 to 10 Pas as plasticizer,(3) 1 to 10 parts by weight of an oximinosilane corresponding to the following formula ##STR1## in which R preresents C.sub.1 -C.sub.4 alkyl or alkenyl radicals,R.sup.1 and R.sup.2 each represent a C.sub.1 -C.sub.4 alkyl radical or hydrogen or R.sup.1 and R.sup.2 together represent a C.sub.4 or C.sub.5 alkylene radical and a may assume the value 0 or 1,(4) 5 to 250 parts by weight of a reinforcing or non-reinforcing filler of filler mixture,(5) 0 to 2.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: March 27, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jorg Jeremias, Hans G. Metzinger, Krystyna Preuss, Wilhelm Weber