Biodegradable superabsorbing sponge

Details Biodegradable superabsorbing sponge Biodegradable superabsorbing sponge

1989-03-09

1990-09-25

Garvin, Patrick P.

Catalyst, solid sorbent, or support therefor: product or process

Solid sorbent

Organic

134 40, 134 41, 134 42, 210660, 210767, 252194, 2523153, 604368, B01J 1300, B01J 2022, B01J 2026

Patent

active

049593412

ABSTRACT:
A new superabsorber which gels and cross-links as hydrated has been developed. The superabsorber contains a branched-chain polyanionic carbohydrate such as carboxymethylcellulose, a cross-linking agent, and a hydrophobic carboxylic acid. The superabsorber is biodegradable and non-toxic.

REFERENCES:
patent: 3969280 (1976-07-01), Sayce et al.
patent: 4090013 (1978-05-01), Ganslaw et al.
patent: 4160063 (1979-07-01), Titus
patent: 4454055 (1984-06-01), Richman et al.
patent: 4486335 (1984-12-01), Majewicz
patent: 4548847 (1985-10-01), Aberson et al.
patent: 4610678 (1986-09-01), Weisman et al.
patent: 4786415 (1988-11-01), Shibata et al.
patent: 4812486 (1989-03-01), Hosokawa et al.
patent: 4826880 (1989-05-01), Lesniak et al.

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