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. 16, 2001
Filed:
Aug. 19, 1999
Kira Fries, Neunkirchen, DE;
Martin Mennig, Quierschied, DE;
Helmut Schmidt, Saarbruecken-Guedingen, DE;
Ulrich Sohling, Freising, DE;
Qiwu Xing, Homburg, DE;
Michael Zahnhausen, Saarbruecken, DE;
Institut fur Neue Materialien gemeinnutzige GmbH, Saarbrucken, DE;
Abstract
The invention relates to transparent organic/inorganic composites with low hydroxyl group content, based on silicic acid heteropolycondensates having extremely low water uptakes. These composites are obtained for example by nonhydrolytic condensation of chlorosilanes with polymerizable groups and optionally fluorinated groups, with the help of a condensation agent (e.g., t-butanol) capable of non-hydrolytic condensation of this chlorosilane, and thermal and/or photochemical polymerization of the obtained condensation product, preferably in the presence of preferably fluorinated organic monomers.