Hydrophilic cotelomers having a terminal sulfonate group and con

Details Hydrophilic cotelomers having a terminal sulfonate group and con Hydrophilic cotelomers having a terminal sulfonate group and con

1981-06-22

1983-04-05

Lusignan, Michael R.

Compositions

Electrolytes for electrical devices

252 98, 252102, 25217424, 252181, 252526, 252545, 252DIG2, 252DIG11, 260507R, 260513N, 5263031, 526310, 526317, 526318, C11D 718

Patent

active

043790682

ABSTRACT:
Hydrophilic cotelomers having a terminal sulphonate group, and having the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each independently H or C.sub.1-4 alkyl; M is H or an alkali metal; M' is an alkali metal; 8.ltoreq.a.ltoreq.40 and 1.ltoreq.b.ltoreq.20. These cotelomers may also contain one or more of the following structural units, A; ##STR2## wherein R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are each independently H or C.sub.1-4 alkyl; R.sub.7 is C.sub.1-8 alkyl; R.sub.8 and R.sub.9 are each independently H or C.sub.1-2 alkyl; Y is aryl; M is H or an alkali metal; Z is M or C.sub.1-8 alkyl; 0.ltoreq.c.ltoreq.2; 0.ltoreq.d.ltoreq.3; 0.ltoreq.e.ltoreq.2; and 0.ltoreq.f.ltoreq.10. Detergent powders containing from 10 to 50% by weight of these hydrophilic cotelomers instead of sodium tripolyphosphate have good detergent and anti-redeposition powers.

REFERENCES:
patent: 3646099 (1972-02-01), Dannals
patent: 3954858 (1976-05-01), Lamberti et al.

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