Odor-free chlorosulfonated polyolefins

Details Odor-free chlorosulfonated polyolefins Odor-free chlorosulfonated polyolefins

1983-01-19

1987-07-14

Henderson, Christopher A.

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

Synthetic resins

Treating polymer containing material or treating a solid...

525344, 528487, 528488, C08K 332, C08K 326, C08K 322

Patent

active

046803807

ABSTRACT:
Vapor phase chlorosulfonated polyolefins usually contain as much as about 100 to 200 parts of more per million of sulfur dioxide in the chlorosulfonated polyolefin particles, even after degassing, that is released over a period of time. The amount of sulfur dioxide released from vapor phase chlorosulfonated polyolefins can be reduced to an amount of less than 0.5 ppm of sulfur dioxide in air, below the level that it can be detected by odor, when there is mixed with the powdered chlorosulfonated polyolefin, after the chlorosulfonation reaction and purging to reduce the sulfur dioxide content of the powder to less than about 300 ppm, less than about three weight parts per one hundred weight parts of chlorosulfonated powdered polyolefin of an inorganic material, or mixture thereof, selected from the group consisting of aluminum hydroxide, barium carbonate, barium hydroxide, magnesium hydroxide, magnesium oxide, potassium carbonate, dipotassium hydrogen phosphate, tripotassium phosphate, sodium carbonate, disodium hydrogen phosphate and trisodium phosphate.

REFERENCES:
patent: 3168499 (1965-02-01), Orthner
patent: 3624054 (1971-11-01), Barton

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