Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1986-02-27
1987-04-21
Lilling, Herbert J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524454, 524494, 524496, 524508, 524509, 524511, C08K 304, C08K 702, C08K 714, C08K 706
Patent
active
046597581
ABSTRACT:
A phenolic compound having improved retention of useful properties over long periods of time at elevated temperatures is presented. The novel phenolic compound, preferably a glass reinforced phenol-formaldehyde with mineral fillers has incorporated therein elastomers which primarily undergo crosslinking on oxidative aging, such as butadiene based rubbers, and/or molecular sulfur or sulfur donor components. These additives unexpectedly retard thermal degradation with time of aging and provide exceptionally good retention of weight, molded dimensions and mechanical properties.
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Fitts Bruce B.
Landi Vincent R.
Lilling Herbert J.
Rogers Corporation
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