Acid stable surfactant

Details Acid stable surfactant Acid stable surfactant

1979-11-29

1982-03-09

Henderson, C. A.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526202, 526203, 526224, 526240, 526241, 524547, C08F22802, C08F 226

Patent

active

043190146

ABSTRACT:
An acid-stable surfactant, soluble in aqueous acidic medium, useful in emulsion polymerization, which is a copolymer containing the groups ##STR1## having one R--Z-- group and one --H group as terminal groups wherein R is a hydrocarbon group, ##STR2## R.sub.1 is --CO.sub.2 CH.sub.3, --CO.sub.2 C.sub.2 H.sub.5, --CO.sub.2 NH.sub.5 or --CN; each R.sub.2, each R.sub.3, each R.sub.4, each R.sub.5 and each R.sub.7 may be the same or different and each R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.7 is hydrogen or methyl; R.sub.6 is a group of the formula --CO.sub.2 H or its salt or a group of the formula --V--CO.sub.2 H or its salt wherein V is alkyl, aryl, aralkyl or alkaryl; W is a group containing a sulfonic acid or a salt of a sulfonic acid or W is a sulfonic acid group or its salt.

REFERENCES:
patent: 2471959 (1949-05-01), Hunt
patent: 3028367 (1962-04-01), O'Brien
patent: 3033833 (1962-05-01), Le Fevre
patent: 3316200 (1967-04-01), Hatala
patent: 3776874 (1973-12-01), Dannals
patent: 3907870 (1975-09-01), Kozuka
patent: 4073995 (1978-02-01), Baatz

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