Process for cross-linking or degrading polymers and shaped artic

Details Process for cross-linking or degrading polymers and shaped artic Process for cross-linking or degrading polymers and shaped artic

1988-03-28

1989-05-23

Schofer, Joseph L.

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

Synthetic resins

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

5253338, 525387, C08F 850

Patent

active

048332097

ABSTRACT:
This disclosure relates to a process for cross-linking polymers, e.g. polyethylene, or degrading polymers, e.g. polypropylene, using peroxides having at least one carbon-carbon double bond in the molecule, e.g. 1-(t-butyl peroxy isopropyl)-3-isopropenylbenzene.
Incorporation of the peroxides into the polymer may be carried out at relatively high temperatures without the risk of premature decomposition of the peroxide, thus allowing easy processability of the polymer mass prior to cross-linking or degradation. The polymeric end products obtained are odorless and do not display blooming.

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Chemical Abstracts, vol. 102 (1985), Abstract No. 203721h.
A.C.S. Advances in Chemistry Series 125-A.C.S. Washington, D.C. (1973), pp. 98-107, 621389-8/30/49-Dickey.

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