Polymer blends having reverse phase morphology for...

Details Polymer blends having reverse phase morphology for... Polymer blends having reverse phase morphology for...

A - Human Necessities

61

K

167/166, 6/88

A61K 9/20 (2006.01) A01N 25/10 (2006.01) A61K 9/22 (2006.01) A61K 9/70 (2006.01) C08L 1/10 (2006.01) C08L 1/12 (2006.01) C08L 1/14 (2006.01)

Patent

CA 1319468

POLYMER BLENDS HAVING REVERSE PHASE MORPHOLOGY FOR CONTROLLED DELIVERY OF BIOACTIVE AGENTS Abstract Disclosed are polymer blends containing a minor amount of cellulose acetate and a major amount of cellulose acetate phthalate, cellulose acetate trimellitate or cellulose acetate succinate. The blends have reverse phase morphology, that is, the minor component forms a continuous phase. The blends are useful for zero-order controlled delivery of bioactive agent such as pharmaceutical and agricultural chemicals. LE0376F

571672

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