Cure accelerator system for phenolic resins

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate

Reexamination Certificate

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Details

C528S146000, C264S236000, C525S480000, C525S484000

Reexamination Certificate

active

07049387

ABSTRACT:
The cure rate of phenol-aldehyde resins is accelerated by conjoint use of a cyclic carbonate cure accelerant and an amine cure accelerant. The cure rate is accelerated still further by addition of a resorcinol source to resin comprising a cyclic carbonate and an amine cure accelerator. Also, cured resins made in accordance with the method.

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Eurpean Search Report dated Jan. 8, 2003
Revised Abstract by the Examing Divison, 02257159.0 Abstract/Zusammenfassung/Abrege.
Database WPI, Section Ch, Week 198526, Derwent Publications Ltd., London, GB; An 1985-157225, XP002226509 & JP 60 090251 A (Kyushu Refractories Co. Ltd), May 21, 1985.

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