Process for increasing the viscosity of aqueous solutions of hom

Details Process for increasing the viscosity of aqueous solutions of hom Process for increasing the viscosity of aqueous solutions of hom

1997-08-13

1998-12-01

Lipman, Bernard

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...

C08L 3700

Patent

active

058440410

ABSTRACT:
A process is described for increasing the viscosity and high humidity curl retention of aqueous solutions of homogeneous copolymers of 20-99% vinyl pyrrolidone (VP) and 1-80% N-3,3-dimethylamino-propyl methacrylamide (DMAPMA). The high viscosity solutions are particularly useful as the active component of hair care products.

REFERENCES:
patent: 4223009 (1980-09-01), Chakrabarti
patent: 4923694 (1990-05-01), Shih et al.
patent: 5045617 (1991-09-01), Shih et al.

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