Process for preparing a sulfonated and passivated low unsaturati

Details Process for preparing a sulfonated and passivated low unsaturati Process for preparing a sulfonated and passivated low unsaturati

1976-10-04

1978-03-07

Welsh, M. J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 297AT, 260 297B, 260 297T, C08L 910

Patent

active

040779335

ABSTRACT:
Sulfonated ionomers of low unsaturation polymers in latex form are prepared in an improved process comprising sulfonating a butyl rubber or EPDM elastomer cement with an acyl sulfate, passivating the sulfonated cement with an organic epoxide, such as propylene oxide, and emulsifying the product in water with an anionic emulsifying agent.

REFERENCES:
patent: 3444121 (1969-05-01), Altien et al.
patent: 3503917 (1970-03-01), Burke
patent: 3642728 (1972-02-01), Canten
patent: 3836511 (1974-09-01), O'Farrell
patent: 3912683 (1975-10-01), O'Farrell

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