Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1982-10-29
1985-09-10
Hoke, Veronica P.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524120, 524222, 524254, 524257, 524258, 524239, 524291, 524399, 524413, 524423, 524430, 524432, 524437, 524450, 524607, 20415919, C08K 334, C08K 322
Patent
active
045407274
ABSTRACT:
The high temperature aging of polyamides is substantially improved by incorporating therein an antioxidant and an oxide of a metal of Group II or III of the Periodic Table, preferably a crystalline aluminosilicate such as a synthetic zeolite. The amount of antioxidant is preferably 1 to 5% and the amount of metal oxide is preferably 0.5 to 5%. Polyamides which can be stabilized in this way include Nylon-6, Nylon-11 and Nylon-12.
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Burkard Herbert G.
Hoke Veronica P.
Raychem Corporation
Richardson Timothy H. P.
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