Curing composition with improved heat resistance

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From silicon reactant having at least one...

Reexamination Certificate

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C528S012000, C528S044000, C528S045000, C528S048000, C528S055000, C528S058000, C528S059000

Reexamination Certificate

active

08003744

ABSTRACT:
The present invention provides a curable composition including: an organic polymer (A) which has on average 1.1 to 50 groups per one molecule thereof each represented by the general formula (1) and has one or more silicon-containing functional groups capable of cross-linking by forming siloxane bonds:in-line-formulae description="In-line Formulae" end="lead"?—NR1—C(═O)—  (1)in-line-formulae description="In-line Formulae" end="tail"?wherein R1is a hydrogen atom, or a substituted or unsubstituted monovalent organic group; and a metal carboxylate and/or a carboxylic acid (B), the curable composition giving a cured article excellent in curability and also excellent in heat resistance although a non-organotin catalyst is used.

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