Process of crosslinking unsaturated hydrocarbon polymers employi

Details Process of crosslinking unsaturated hydrocarbon polymers employi Process of crosslinking unsaturated hydrocarbon polymers employi

1978-01-06

1979-07-03

Lilling, Herbert J.

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

Synthetic resins

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

260768R, 560 22, 560 25, 560 29, 560 30, 560 31, 560 32, 560 24, 560137, 560158, 560163, 560157, C08C 1912, C08C 1922, C08C 1928, C08J 324

Patent

active

041600770

ABSTRACT:
A process for the cross-linking or chain extension of hycrocarbon polymers which contain ethylenically unsaturated groups which comprises forming an intimate mixture of the polymer with a carbamate of the formula: ##STR1## WHEREIN R.sub.1 is an optionally substituted hydrocarbyl radical, m is an integer, and A is H or an optionally substituted hydrocarbyl radical of valency m, and subjecting the mixture to heat.
Novel compounds of preferred use include those in which m=1 and at least one of R and A is alkyl or 7 or more carbon atoms, or in which m=2 and A is phenylene or alkylene or alkenylene of 2 to 4 carbon atoms.

REFERENCES:
patent: 3721659 (1973-03-01), Cain et al.
patent: 3904592 (1975-09-01), Sexsmith et al.
patent: 4073800 (1978-02-01), Brooks et al.

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