Patent · US Expired

Stabilized epoxy resin compositions

US5354939A · kind A · utility

12Cited by

6References

9Claims

0Family size

Assignee

Ciba-Geigy · US

Inventors

Werner Hollstein · Schliengen, DE
Peter Ruger · Bocholt, DE
Claus W. Rabener · Wedel, DE

Key dates

Filing date	Dec 20, 1993
Grant date	Oct 11, 1994
Priority date	—
Expiry date	Dec 20, 2013

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L63/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Compositions comprising (a) a liquid epoxy resin, (b) a filler containing at least 50% by weight of quartz flour, (c) a polyether polyol, and (d) an organically modified sheet silicate, show a constant viscosity under thermal and mechanical stress and are suitable for applications in vacuum casting technology, especially as encapsulating material for electrical and electronic components.

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