Cellulose acetate phthalate enteric coating compositions

Details Cellulose acetate phthalate enteric coating compositions Cellulose acetate phthalate enteric coating compositions

1995-11-06

1998-03-03

Krass, Frederick

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Capsules

424464, 424480, 424482, 424494, 424495, 536 64, 525 5421, 527311, A61K 920

Patent

active

057231516

ABSTRACT:
Provided are enteric coating compositions which utilize a low viscosity cellulose acetate phthalate polymer as a film former. The cellulose acetate phthalates have an inherent viscosity of about 0.2 to 0.6 dL/g and phthalyl values of from 30 to 40% and can be applied to solid oral medicaments with less solvent than conventional cellulose acetate phthalate polymers. Also provided is a process for preparing the low viscosity cellulose acetate phthalate polymers.

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