Acrylamide polymers and use thereof

Details Acrylamide polymers and use thereof Acrylamide polymers and use thereof

1997-06-24

1999-08-24

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...

524814, C08L 3326, C08L 4100

Patent

active

059425733

ABSTRACT:
Provided by this invention are an acrylamide polymer which has a weight-average molecular weight (a) of from 1,500,000 to 10,000,000 and a weight-average inertial radius (b) of from 30 to 150 nm, the ratio (b)/(a) of the weight-average inertial radius (b) to the weight-average molecular weight (a) being 0.00004 or smaller; and an aqueous solution of an acrylamide polymer which solution has a polymer concentration ranging from 22 to 60%, a Brookfield viscosity at 25.degree. C. of 50,000 cps or smaller and a weight-average molecular weight of from 500,000 to 10,000,000. They are useful as paper strength agents.

REFERENCES:
patent: 4039498 (1977-08-01), Defoor
patent: 4451628 (1984-05-01), Dammann
patent: 4670590 (1987-06-01), Kambara et al.

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