Oligomerized acids as scorch inhibitors for carboxylated rubbers

Details Oligomerized acids as scorch inhibitors for carboxylated rubbers Oligomerized acids as scorch inhibitors for carboxylated rubbers

1982-05-17

1984-06-05

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524321, 524432, C08K 509

Patent

active

044529368

ABSTRACT:
Scorch (the premature cross-linking of an elastomer) is a problem that is often encountered in carboxylated rubbers in the presence of metal oxides which are used as cross-linking agents. Oligomerized fatty acids can be distributed throughout a carboxylated rubber to improve the scorch resistance of the resulting carboxylated rubber composition without significantly affecting the cure rate of that rubber composition. This invention discloses a process for improving the scorch resistance of a carboxylated rubber composition comprising distributing throughout a carboxylated rubber at least one oligomerized fatty acid to improve the scorch safety of said rubber composition without significantly affecting the cure rate of said rubber composition.

REFERENCES:
patent: 3000851 (1961-09-01), Schweitzer
patent: 3220968 (1965-11-01), Dollhausen et al.
patent: 3880821 (1975-04-01), Feniak
patent: 4191671 (1980-03-01), Kataoka et al.

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