Compositions exhibiting controlled release properties

Details Compositions exhibiting controlled release properties Compositions exhibiting controlled release properties

1977-05-31

1979-05-22

Person, Sandra M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260842, 260862, 239 60, 424 19, 424 22, C08K 716, C08K 718

Patent

active

041558979

ABSTRACT:
Compositions exhibiting controlled release of an active substance are disclosed. The compositions comprise an unsaturated polyester resin, an active substance, and hollow microspheres of an organic material, an inorganic material, or a mixture thereof.

REFERENCES:
patent: 2806509 (1957-09-01), Bozzacco et al.
patent: 3036928 (1962-05-01), Poole
patent: 3228897 (1966-01-01), Nellessen
patent: 3230184 (1966-01-01), Alford
patent: 3608062 (1971-09-01), Krefeld et al.
patent: 3655129 (1972-04-01), Seiner
patent: 3873475 (1975-03-01), Pechacek et al.
patent: 4043988 (1977-08-01), Cooke et al.

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