Hydrogels with increased organic solvent soluble active agent lo

Details Hydrogels with increased organic solvent soluble active agent lo Hydrogels with increased organic solvent soluble active agent lo

1988-08-08

1989-10-10

Maples, John S.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Biocides; animal or insect repellents or attractants

514944, 514950, 528 75, 528904, 424 78, 424 81, 424486, 424487, A61K 3178, A61K 3174

Patent

active

048730866

ABSTRACT:
An organic solvent soluble active agent containing water-insoluble hydrophilic hydrogel comprising a copolymer of (A) a water-soluble monoolefinic monomer or a mixture thereof optimally containing up to 50% thereof of one or more water-insoluble mono-olefinic monomers and (B) a terminally diolefinic hydrophobic macromer containing polypropylene oxide or polytetramethylene oxide units prepared in the presence of an effective macromer expanding amount of a macromer soluble compound of the formula

REFERENCES:
patent: 4127127 (1978-11-01), Wong et al.
patent: 4177056 (1979-12-01), Mueller et al.
patent: 4304591 (1981-12-01), Mueller et al.
patent: 4548990 (1985-10-01), Mueller et al.

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