pH-sensitive modified cellulose ester

Details pH-sensitive modified cellulose ester pH-sensitive modified cellulose ester

1997-03-18

1999-07-20

Brunsman, David

Compositions: coating or plastic

Coating or plastic compositions

Carbohydrate or derivative containing

10617027, 502439, 504116, 514731, 510302, 510303, 510379, 510380, 510381, 510471, 510473, C09D10114, A01N 2510, B01J 3200, C11D 3395

Patent

active

059251816

ABSTRACT:
Cellulose esters according to formula (I):
are described, where R is hydrophobic, R' is hydrophilic and not phthalyl or trimellityl, which may be designed, by the proper selection of R, R', x, y, and n, to dissolve under mild to alkaline conditions, and not before. A coating comprising a modified ester according to formula (I) may be used for controlled-release applications, particularly for a cleaning formulation.

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CA 125:143490, Kawamoto et al, "Silver Halide . . . " May 1986.

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