Patent · US Active

Water-dilutable sol-gel composition

US8147918B2 · kind B2 · utility

18Cited by

38References

32Claims

0Family size

Assignee

EVONIK DEGUSSA GMBH · DE

Inventors

Burkhard Standke · Soest, DE
Christian Wassmer · Eschborn, DE
Peter Jenkner · Rheinfelden (Baden), DE

Key dates

Filing date	Dec 6, 2006
Grant date	Apr 3, 2012
Priority date	—
Expiry date	May 28, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31663
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention provides a sol-gel composition which is dilutable with water in any proportion and is based on the reaction of at least the following components: (i) a glycidyloxypropylalkoxysilane, (ii) an aqueous silica sol having a solids content of >1% by weight, (iii) an organic acid as hydrolysis catalyst, and (iv) n-propyl zirconate, butyl titanate or titanium acetylacetonate as crosslinker, starting from a mass ratio of the solids mass of component (ii) to component (i) 0.75, a process for preparing it and its use, in particular as a sol-gel composition for corrosion control coatings, a corresponding corrosion control coat or primer coat, and articles equipped with such a coating.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.