Epoxy resin composition

Details Epoxy resin composition Epoxy resin composition

2006-09-26

2006-09-26

Sellers, Robert (Department: 1712)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C252S183110

Reexamination Certificate

active

07112636

ABSTRACT:
An epoxy resin composition comprising an epoxy resin, a hardening agent and a hardening accelerator as an indispensable ingredients is provided wherein the hardened resin has a high translucency and has little discoloration under high temperature and high humidity and is excellent at heat resistance and light fastness by compounding a phosphonium compound represented by the following formula (I) as a hardening accelerator.

REFERENCES:
patent: 3637572 (1972-01-01), Ogata et al.
patent: 04-209624 (1992-07-01), None
patent: 08-034834 (1996-02-01), None
patent: 11-005829 (1999-01-01), None
patent: 2002-053644 (2002-02-01), None
CAPLUS accession No. 1971:43048 for U.S Patent No. 3,637,572 containing registry No. 31586-93-3, 1971.

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