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. 17, 2021
Filed:
Jun. 05, 2019
Evonik Operations Gmbh, Essen, DE;
Philipp Albert, Rheinfelden, DE;
Julia Kirberg, Rheinfelden, DE;
Dennis Bringmann, Efringen-Kirchen, DE;
Dominik Hitzler, Bartholomae, DE;
Eckhard Just, Rheinfelden, DE;
Evonik Operations GmbH, Essen, DE;
Abstract
A composition contains a mixture of 3-glycidyloxypropylalkoxysilane oligomers in a proportion of ≥60% by weight based on the composition, which is storage stable over at least 8 weeks at a storage temperature of 60° C., has a colour number of ≤20 mg Pt—Co/l, a pH of not less than 3.5 to not more than 6.5 and a monomer proportion of silane employed in the production of the composition of not more than 5 mol % based on the molar proportion of Si in the composition, wherein the proportion of epoxy groups bound in Si compounds and present in the composition is not less than 95 mol % based on the molar proportion of Si in the composition.