Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1982-05-17
1983-11-15
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524432, C08K 515
Patent
active
044156901
ABSTRACT:
Scorch (the premature cross-linking of an elastomer) is a problem that is often encountered in carboxylated rubbers. Succinic anhydride derivatives (alkenyl succinic anhydrides, alkyl succinic anhydrides, and their corresponding dicarboxylic acids) can be used to greatly improve the scorch resistance of carboxylated rubbers. These succinic anhydride derivatives can be distributed throughout a carboxylated rubber before or after coagulation using any procedure that will result in a thorough mixing to form a rubber composition with improved scorch resistance.
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Rockhill Alvin T.
Sarofin N.
Schofer Joseph L.
The Goodyear Tire & Rubber Company
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