Polyurethanes which are dispersible or soluble in water and a pr

Details Polyurethanes which are dispersible or soluble in water and a pr Polyurethanes which are dispersible or soluble in water and a pr

1979-04-16

1981-12-01

Cockeram, H. S.

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

260 292TN, 260453AR, 260513R, 521174, 528904, 560159, C08G 1864, C08G 1871, C08G 1850, C08L 7508

Patent

active

043037747

ABSTRACT:
The present invention relates to water soluble or water dispersible polyurethane elastomers which have a substantially linear molecular structure and which contain both ethylene oxide units incorporated in polyether chains and sulphonate groups, characterized in that they contain from about 0.5 to 20% by weight of ethylene oxide units of the formula --CH.sub.2 --CH.sub.2 --O-- arranged within polyether chains and from about 0.1 to 25 milliequivalents, per 100 g of solid, of sulphonate groups of the formula --SO.sub.3.sup..crclbar. in the form of structural units of the formula

REFERENCES:
patent: 3479310 (1969-11-01), Dieterich et al.
patent: 3756992 (1973-09-01), Dieterich et al.
patent: 3905929 (1975-09-01), Noll
patent: 3920598 (1975-11-01), Reiff et al.
patent: 3959329 (1976-05-01), Dieterich et al.
patent: 4092286 (1978-05-01), Noll et al.
patent: 4108814 (1978-08-01), Reiff et al.
patent: 4190566 (1980-02-01), Noll et al.
patent: 4238378 (1980-12-01), Markusch et al.

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