Water-insoluble hydrophilic copolymers used as carriers for medi

Details Water-insoluble hydrophilic copolymers used as carriers for medi Water-insoluble hydrophilic copolymers used as carriers for medi

1978-01-25

1979-12-04

Schenkman, Leonard

Chemistry: fertilizers

Processes and products

Forms or conditioning

71DIG1, 424 78, 424 81, A01N 922, A61K 3178

Patent

active

041770560

ABSTRACT:
A water-insoluble hydrophilic gel comprising: (A) about 30 to about 90% of a hydrophilic (a) polymer of identical or different water-soluble mono-olefinic monomers, or (b) copolymer of said water-soluble monomers with 1 to 70% of water-insoluble, identical or different mono-olefinic monomers, which polymer or copolymer is cross-linked with (B) about 10 to about 70% of a terminal diolefinic hydrophobic macromer having a molecular weight from about 400 to about 8000.

REFERENCES:
patent: 3503942 (1970-03-01), Seiderman
patent: 3509234 (1970-04-01), Burrant
patent: 3677920 (1972-07-01), Kai
patent: 3829531 (1974-08-01), Graff
patent: 3876761 (1975-04-01), Shepherd
patent: 3959237 (1976-05-01), Buank
patent: 3996308 (1976-12-01), Douek
patent: 4007258 (1977-02-01), Cohen et al.
patent: 4056496 (1977-11-01), Mancini et al.

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