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:
Oct. 17, 2000
Filed:
Aug. 02, 1999
Roland Edelmann, Wehr, DE;
Albert-Johannes Frings, Rheinfelden, DE;
Michael Horn, Rheinfelden, DE;
Peter Jenkner, Rheinfelden, DE;
Ralf Laven, Schwoerstadt, DE;
Helmut Mack, Rheinfelden, DE;
Jaroslaw Monkiewicz, Rheinfelden, DE;
Wolfgang-Wilhelm Orlia, Toenisvorst, DE;
Burkhard Standke, Loerrach, DE;
Degussa-Huels Aktiengesellschaft, Frankfurt am Main, DE;
Abstract
Mixtures of catenate and cyclic siloxane oligomers of formula I and II ##STR1## wherein the substituents R consist of 3-methacryloxypropyl or 3-acryloxypropyl groups and methoxy, ethoxy and/or propoxy groups alone or together with C.sub.1 -C.sub.18 alkyl, fluoroalkyl, isoalkyl or cycloalkyl groups and/or C.sub.6 -C.sub.12 aryl groups and where not more than one 3-methacryloxypropyl or 3-acryloxypropyl group is attached to one silicon atom and the degree of oligomerization of compounds of the formula I is within the range 2<m<25 and of compounds of the formula II is within the range 2<n<8 and the quotient of the molar proportion of Si/alkoxy groups is .gtoreq.0.5.