Patent · US Expired

Liquid epoxy resin composition containing wollastonite and calcite

US5872163A · kind A · utility

14Cited by

5References

8Claims

0Family size

Assignee

Ciba Specialty Chemicals Corporation · US

Inventors

Werner Hollstein · Schliengen, DE
Werner Pfander · Fellbach, DE
Irene Jennrich · Winnenden, DE
Rolf Grebenstein · Immenstadt im Allgäu, DE

Key dates

Filing date	Oct 28, 1996
Grant date	Feb 16, 1999
Priority date	—
Expiry date	Oct 28, 2016

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/12528
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Epoxy resin casting compositions comprising PA1 (a) a liquid aromatic glycidyl or .beta.-methylglycidyl ether or a liquid mixture of several aromatic glycidyl or .beta.-methylglycidyl ethers containing on average more than one glycidyl ether group per molecule, PA1 (b) one or more than one acid hardener for the glycidyl ether, PA1 (c) a curing accelerator, PA1 (d) a filler mixture containing calcite and wollastonite in an amount from 40 to 60% by weight, based on components (a), (b) and (d), and as optional components, PA1 (e) customary additives for epoxy resin casting compositions are suitable in particular for coating or encapsulating electrical or electronic components and, more particularly, electrical ignition coils.

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