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:
Jul. 09, 2013
Filed:
Nov. 08, 2004
Roland Edelmann, Rheinfelden, DE;
Bjoern Borup, Rheinfelden, DE;
Jaroslaw Monkiewicz, Rheinfelden, DE;
Christian Wassmer, Hausen, DE;
Kerstin Bibbo, Rheinfelden, DE;
Burkhard Standke, Loerrach, DE;
Roland Edelmann, Rheinfelden, DE;
Bjoern Borup, Rheinfelden, DE;
Jaroslaw Monkiewicz, Rheinfelden, DE;
Christian Wassmer, Hausen, DE;
Kerstin Bibbo, Rheinfelden, DE;
Burkhard Standke, Loerrach, DE;
Evonik Degussa GmbH, Essen, DE;
Abstract
The present invention provides a composition based on the reaction at least of the following components: (i) a glycidyloxypropylalkoxysilane, (ii) an aqueous silica sol having an SiOcontent of >20% by weight, (iii) an organic acid hydrolysis catalyst, and (iv) n-propyl zirconate, butyl titanate or titanium acetylacetonate as crosslinker, a process for its preparation, and the use thereof, particularly as a composition for scratch resistant coatings, and also provides articles thus coated.