Thickening aqueous systems

Details Thickening aqueous systems Thickening aqueous systems

1987-08-28

1992-06-23

Schofer, Joseph L.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C08K 506

Patent

active

051243890

ABSTRACT:
New liquid thickeners for aqueous liquids, particularly those employed in pesticides and latex paints, comprise polyoxyalkylene polyethers terminated with oxypropylene groups. These copolymers are prepared by reacting ethylene oxide with an active hydrogen-containing initiator having about 1 to 18 carbon atoms and at least one active hydrogen atom followed by reaction with propylene oxide.

REFERENCES:
patent: 2674619 (1953-10-01), Lundsted
patent: 3036118 (1962-05-01), Jackson
patent: 4335163 (1982-06-01), Wang
patent: 4384661 (1983-05-01), Page
patent: 4412028 (1983-10-01), Lundberg

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