Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2003-10-07
2008-03-04
Gulakowski, Randy (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S060000, C508S492000
Reexamination Certificate
active
07339003
ABSTRACT:
An antioxidant which comprises a primary aliphatic hydroxyl group linked to an organic backbone such that upon oxidation a hydroperoxyl moiety capable of boosting the efficacy of free radical scavengers and hydroperoxide decomposer type antioxidants is generated in situ. The antioxidant is preferably a high hydroxyl polyol ester having a hydroxyl number ranging from about 30 to about 180 which ester is the reaction product of polyol and an acid which is at least fifty percent branched carboxylic acid, wherein the unconverted hydroxyl group is reacted with a facile leaving group, thereby producing free —CH2OH groups upon hydrolysis or oxidation.
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Aldrich Haven S.
Brois Stanley J.
Schlosberg Richard H.
Asinovsky Olga
Exxonmobil Research and Engineering Company
Gulakowski Randy
Katz Gary P.
Purwin Paul E.
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