Dry blending of neutralized sulfonated elastomeric powders

Details Dry blending of neutralized sulfonated elastomeric powders Dry blending of neutralized sulfonated elastomeric powders

1977-11-29

1979-04-03

Jacobs, Lewis T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 285B, 260 336AQ, 260 4233, 260 4247, 260DIG31, 526 41, C08L 9100

Patent

active

041476778

ABSTRACT:
This invention relates to a process for first preparing a free flowing finely divided powder of a neutralized sulfonated elastomer and subsequently and optionally admixing said formed powder with other agents such as fillers and oils thereby providing free flowing powders capable of being subsequently fabricated into tough elastomeric objects. The neutralized sulfonated elastomeric polymer can be converted into a free flowing finely divided powder which does not agglomerate or cold flow under ambient conditions by a variety of processes, preferably by a grinding process conducted at low temperatures. The formed powder of the neutralized sulfonated elastomeric polymer is blended with at least one chemical additive into a homogeneous mixture, wherein the chemical additive is selected from the group including fillers, polyolefinic thermoplastics, non-polar backbone process oils, lubricants or a metallic oxide and mixtures thereof. The homogeneous mixture is formed into a finished elastomeric article by conventional fabrication.

REFERENCES:
patent: 3432480 (1969-03-01), Stratton
patent: 3642728 (1972-02-01), Canter
patent: 3847854 (1974-11-01), Canter et al.
patent: 3925280 (1975-12-01), Lundberg et al.

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