Method for sulfonating organic materials

Details Method for sulfonating organic materials Method for sulfonating organic materials

1978-07-28

1980-09-02

Hamrock, William F.

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

Synthetic resins

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

260505S, 260504R, 260513T, 525420, 525422, 525437, 525452, 525461, 525474, 525505, 525513, 525523, 525535, C08F 834, C08F 836

Patent

active

042207398

ABSTRACT:
Organic materials such as polyethylene, polystyrene and polypropylene are more efficiently sulfonated by contacting them with an essentially dry gaseous mixture of sulfur trioxide and chlorine. Sulfonated organic polymers prepared by this process are adhesive, antistatic and highly impermeable to oleophilic materials such as gasoline, and common hydrocarbon solvents.

REFERENCES:
patent: 3218301 (1965-11-01), Moody et al.
patent: 3228744 (1966-01-01), Karn
patent: 3542746 (1970-11-01), Eckardt et al.
patent: 3624054 (1971-11-01), Barton et al.
patent: 3629025 (1971-12-01), Walles

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