Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Reexamination Certificate
2011-01-04
2011-01-04
Peng, Kuo-Liang (Department: 1765)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
C528S032000, C525S393000
Reexamination Certificate
active
07863401
ABSTRACT:
A compound having the formula:Each Ar is an aromatic group. Each R is an alkyl group. The value n is a positive integer. The values of w, x, y, and z are 0 or 1. If y is 0 than x and z are 0 and w is 1, and if y is 1 than x and z have different values and w equals z. A thermoset made by crosslinking a silane-containing compound with the above compound. A method of making the above compound when y is 1 by: reacting 4,4′-difluorobenzophenone with an aromatic diol to form an oligomer; and reacting the oligomer with a vinyl dialkylsilane. A method of making the below compound by: reacting 4,4′-difluorobenzophenone with a vinyl dialkylsilane. Each R is an independently selected alkyl group.
REFERENCES:
patent: 2007/0265414 (2007-11-01), Richter et al.
Keller Teddy M
Laskoski Matthew
Grunkemeyer Joseph T.
Peng Kuo-Liang
Ressing Amy L.
The United States of America as represented by the Secretary of
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