Patent · US Expired

Process for improving the adhesion of polymeric substances

US4874638A · kind A · utility

4Cited by

2References

8Claims

0Family size

Assignee

Wacker Chemie AG · DE

Inventors

Herbert Eck · Burghausen, DE
Gerald Fleischmann · Emmerting, DE
Alfred Prasse · Burghausen, DE
Kunigunde Kolbig · Simbach, DE

Key dates

Filing date	Mar 21, 1988
Grant date	Oct 17, 1989
Priority date	—
Expiry date	Mar 21, 2008

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B41/70
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A process for improving the adhesion of polymeric substances containing organic groups or composed of such groups to the surfaces of alkaline earth metal carbonates, which comprises applying an organic aprotic solvent solution containing at least one organosilicon compound having fluorine bonded directly to silicon and an average of not more than 1.8 SiC-bonded organic radicals per silicon atom to the surface of alkaline earth metal carbonates and removing the solvent before a polymeric substance containing organic groups is applied to the pretreated alkaline earth metal carbonate surface.

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