The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 03, 1999
Filed:
Jun. 17, 1997
Burkhard Standke, Loerrach, DE;
Roland Edelmann, Wehr, DE;
Albert Frings, Rheinfelden, DE;
Michael Horn, Rheinfelden, DE;
Peter Jenkner, Rheinfelden, DE;
Ralf Laven, Niederdossenbach, DE;
Jaroslaw Monkiewicz, Rheinfelden, DE;
Lothar Elfenthal, Langenfeld, DE;
Hans-Hermann Luginsland, Leverkusen, DE;
Huls Aktiengesellschaft, Marl, GB;
Abstract
A mixture of oligomers of alkylalkoxysilanes condensed in the chain and/or cyclic form, said mixture of oligomers containing less than 2% by weight of free alcohols and the condensed alkoxysilanes satisfying formula I: ##STR1## wherein R is an alkyl group having 3 to 18 carbon atoms, and each R' is a member (i) selected from the group consisting of methyl, ethyl or hydrogen, or is (ii) methyl or hydrogen, or is (iii) ethyl or hydrogen, the degree of oligomerization being in the range 2.ltoreq.x.ltoreq.20 and the quotient of the molar ratio �Si/alkoxy group!.gtoreq.1; and/or