Absorbing polymer

Details Absorbing polymer Absorbing polymer

1989-10-13

1991-02-05

Foelak, Morton

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524 45, 525 5421, 525 5423, 525 56, 525 57, C08L 100, C08L 126, C08G 6348

Patent

active

049905511

ABSTRACT:
Absorbing polymer consisting of a polymer A which is an optionally modified polyvinyl alcohol or an optionally modified polysaccharide or a mixture of these, and of a polymer B which is a maleic anhydride homo- or copolymer having a hydrolysis time of 5 to 120 minutes, the anhydride groups being open and 0.005 to 5 mol % of the acid functions being esterified with hydroxyl groups of polymer A, and the remaining acid functions being present as free acid groups, as salts or as acid amide groups, an absorbing product containing this polymer and a process for their preparation.

REFERENCES:
patent: 3936441 (1976-02-01), Holst et al.
patent: 3941730 (1976-03-01), Solenberger
patent: 4169818 (1979-10-01), DeMartino et al.
patent: 4200557 (1980-04-01), Chatterjee et al.
patent: 4332917 (1982-06-01), Heslinga et al.
patent: 4338417 (1982-07-01), Heslinga et al.
patent: 4789716 (1988-12-01), Scholz et al.
Suzuki et al., J. Polym. Sci., 22, 2829-2839 (1984).
CIPAC Handbook, vol. 1, Analysis of Technical and Formulated Pesticides, R. Ashworth et al., 875-879 (1970).

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