Resol-type phenol resin composition and method for curing...

Details Resol-type phenol resin composition and method for curing... Resol-type phenol resin composition and method for curing...

2006-05-09

2006-05-09

Shosho, Callie (Department: 1714)

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S428000, C524S433000, C524S594000

Reexamination Certificate

active

07041724

ABSTRACT:
The present invention provides a resol-type phenol resin composition which can be cured even in a low temperature range, using a curing accelerator which has no adverse effect on other materials or substances with which the resulting cured article is in contact, or a curing accelerator which requires a small amount of an additive. The composition comprises a resol-type phenol resin (A), an alkali earth metal oxide and/or an alkali earth metal hydroxide (B) (e.g. magnesium oxide, calcium hydroxide, barium hydroxide, etc.), and a salt (C) of a sulfur atom-containing oxo acid and a nitrogen atom-containing base (e.g. ammonium thiosulfate, etc.). This composition is cured at 10 to 110° C.

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Database WPI; Section Ch, Week 198109, Derwent Publication Ltd. XP-002180516 and JP 55-165944A;Dec. 24, 1980 (Japan).

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