Method for cross-linking and stabilizing polymers which can be c

Details Method for cross-linking and stabilizing polymers which can be c Method for cross-linking and stabilizing polymers which can be c

1979-05-18

1981-08-11

Hoke, V. P.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

556410, 556427, 556441, 556444, 556486, 20415913, 260 457R, 260 457S, 260 459QB, 260 458NZ, 260 458NW, 260 4585E, 260 4585V, 525263, 525279, 525288, 544 69, 546 14, C08F28700, C08F26504, C08F25502, C08F25506

Patent

active

042835054

ABSTRACT:
The invention relates to a method for cross-linking radically cross-linkable polymers and for stabilizing such polymers against oxidative and/or thermal decomposition. The method is developed so that rapid and economical cross-linking of radically cross-linkable polymers is obtained in the presence of oxidation inhibitors without adverse effects on the cross-linking process due to the oxidation inhibitor. For this purpose, the invention provides that the cross-linking is carried out in the presence of oxidation inhibitors, wherein the inhibition-active --OH and/or --NH functions are at least partially substituted by protective silyl- and/or silylene groups, the inhibitor molecule containing at least one Si-alkenyl group. The method according to the invention is suitable for use with radical as well as radiation-cross-linkable polymer.

REFERENCES:
patent: 3345326 (1967-10-01), Chang et al.
patent: 3361672 (1968-01-01), Andress et al.
patent: 3485660 (1969-12-01), Engelhardt
patent: 3510507 (1970-05-01), Bown et al.
patent: 3817916 (1974-06-01), Parks
patent: 3984372 (1976-10-01), Cottman
patent: 4058583 (1977-11-01), Glander et al.
patent: 4117195 (1978-09-01), Swanbrick
J. Applied Polymer Science 19 2667-2682 (1975).
J. Applied Polymer Science 18 635-649 (1974).
J. Applied Polymer Science 17 3323-3335 (1973).

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