Dry material which can be hydrated into an aqueous gel, containing dispersed polymer particles, process for the preparation thereof and use thereof in biological applications
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United States of America Patent
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Apr 12, 1988
Grant Date -
N/A
app pub date -
Apr 10, 1987
filing date -
Apr 15, 1986
priority date (Note) -
Expired
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Abstract
Dry material which can be hydrated into an aqueous gel comprising (1) a matrix comprising a macromolecular substance A, capable of forming a porous aqueous gel when it is in the presence of water, (2) a water-soluble linear polymer B, (3) a plasticizer for the macromolecular substance A and, (4) dispersed in the matrix, particles of a polymer C obtained from at least one water-immiscible monomer. The material can be obtained by mixing an aqueous solution of A with the polymer B, the plasticizer and a latex of polymer C, followed by cooling, shaping and drying of the aqueous gel obtained. The dry material can be used in biological applications after rehydration.
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