Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1993-06-22
1994-06-07
Bleutge, John C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528112, 528115, 525 20, 525 36, 525531, 525533, 525922, C08G 6510
Patent
active
053190602
ABSTRACT:
A method of preparing an unsaturated ester resin having improved storage stability is disclosed. An epoxy compound and polymerizable unsaturated monocarboxylic acid are reacted in the presence of a trivalent organic phosphorous catalyst. The catalyst is subsequently deactivated by oxidation. The resin may then be reacted with an acid anhydride.
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Hagiwara Yoshichi
Nishikawa Katsue
Bleutge John C.
Gulakowski Randy
Looper Valerie E.
W. R. Grace & Co.,-Conn.
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