Patent · US Expired

Casting resin of epoxyalkylsiloxane, epoxy resin and anhyride

US5492981A · kind A · utility

15Cited by

5References

3Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Klaus Hoehn · Taufkirchen, DE
Ulrike Reeh · Munich, DE
Ernst Wipfelder · Munich, DE
Guenther Waitl · Regensburg, DE

Key dates

Filing date	Aug 24, 1994
Grant date	Feb 20, 1996
Priority date	—
Expiry date	Aug 24, 2014

Classification

Technology area (CPC H)Electricity
CPC primaryH10H20/854
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A casting resin system containing epoxyalkylsiloxane is provided for covering optoelectronic components. The casting resin system includes a resin constituent containing a mixture of epoxyalkylsiloxanes and cycloaliphatic epoxy resins. The casting resin system can be hardened with a polycarboxylic acid anhydride as a hardener component to form molding materials that are transparent and color-stable.

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