The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 03, 1998
Filed:
Nov. 06, 1995
Applicant:
Inventors:
Phillip Michael Cook, Kingsport, TN (US);
Michael Wayne Adams, Raleigh, NC (US);
Joseph Vaden Smith, Kingsport, TN (US);
Assignee:
Eastman Chemical Company, Kingsport, TN (US);
Primary Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
424459 ; 424464 ; 424480 ; 424482 ; 424494 ; 424495 ; 536 64 ; 525 5421 ; 527311 ;
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.