Dried rehydratable film containing agarose or gelose and process

Details Dried rehydratable film containing agarose or gelose and process Dried rehydratable film containing agarose or gelose and process

1976-01-12

1977-09-13

Woodberry, Edward M.

Stock material or miscellaneous articles

Composite

Of polyamide

260 174SG, 260 174ST, 428483, B32B 2708, C08L 500, C08L 512

Patent

active

040483770

ABSTRACT:
Dried agarose or gelose-containing films which are rehydratable into aqueous gel films are disclosed. The dried films are prepared by first forming, on a support, an aqueous gel film containing at most 5% by weight of agarose or gelose and a water-soluble linear polymer or copolymer of acrylamide or methacrylamide. The viscosity of such polymer and copolymer in a 5% aqueous solution at 22.degree. C is about 17000 centipoises or less and preferably about 6000 centipoises or less. The aqueous gel film is then dried according to known techniques, with the linear polymer or copolymer of acrylamide or methacrylamide being included in the dried film.

REFERENCES:
chem. Absts. 71(1969) 33749v, "Acrylamide-Agarose mixed gels", Uriel
Chem. Absts. 74(1971) 91619a "Electroosmotic-agarose-stabilizing agent-electrofocussing, Quast".
Chem. Absts. 69(1968) 61812N, "Mixed Acrylamide-agarose gels", Uriel.

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