Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1997-09-18
1998-10-20
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C08F 3006
Patent
active
058247572
ABSTRACT:
Resins and carbon-carbon composites are formed from di(alken-1-yl) borinic acids and borinates, either as monomers or as nonpolymerizing additives in a monomer mixture, with the effect of sharply increasing the oxidative stability of the cured product. The compounds have the formula ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are H, C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.6 alkenyl, C.sub.2 -C.sub.6 alkynyl, C.sub.3 -C.sub.7 cycloalkyl, C.sub.5 -C.sub.7 cycloalkenyl, aryl, (C.sub.1 -C.sub.6 alkyl)-substituted aryl, (C.sub.2 -C.sub.6 alkenyl)-substituted aryl, or (C.sub.2 -C.sub.6 alkynyl)-substituted aryl, at least one of R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 being other than H.
REFERENCES:
In-house computer searched abstract; Garber et al Spectrochia Acta Part A 49A (13-14), 2117-37 (English) 1993 abstract pp. 14 & 15.
Backlund Stephen John
Olsen Robert Earl
Aerojet-General Corporation
Sarofin N.
Schofer Joseph L.
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