Process for sulphonating molten polyolefins

Details Process for sulphonating molten polyolefins Process for sulphonating molten polyolefins

1986-12-19

1989-01-31

Henderson, Christopher

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

Synthetic resins

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

525240, C08F 836

Patent

active

048016560

ABSTRACT:
A polyolefin that has been modified with sulphur trioxide/trimethylamine complex is disclosed. The polyolefin may be homopolymer or copolymer of alpha-olefins selected from the group consisting of alpha-olefins having 2-10 carbons atoms, such alpha-olefins being hydrocarbon. Preferred polymers are homopolymers of ethylene or propylene, or copolymers of ethylene and at least one C.sub.3 -C.sub.10 alpha-olefin. The modified polyolefin is preferably formed by admixing molten polyolefin with 20-2000 ppm of the complex at a temperature of at least 210.degree. C. The modified polyolefin is dyeable.

REFERENCES:
patent: 3072619 (1963-01-01), Turbak
patent: 4220573 (1980-09-01), Bock
patent: 4304702 (1981-12-01), Makowski

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