Process for preparing latices of sulfonated elastomers

Chemistry of carbon compounds – Miscellaneous organic carbon compounds

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260 297EM, 260 297AT, 260 297T, 260 793R, C08L 4700

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active

040071499

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), Altier et al.
patent: 3503917 (1970-03-01), Burke
patent: 3642728 (1972-02-01), Canter
patent: 3836511 (1974-09-01), O'Farrell
patent: 3912683 (1975-10-01), O'Farrell

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