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.

Date of Patent:
Sep. 01, 2020

Filed:

Mar. 29, 2019
Applicant:

Bpsi Holdings Llc, Wilmington, DE (US);

Inventors:

Raxitkumar Y. Mehta, Lansdale, PA (US);

George Reyes, Perkiomenville, PA (US);

Jason Teckoe, Dartford, GB;

Daniel To, Maple Glen, PA (US);

Assignee:

BPSI HOLDINGS LLC, Wilmington, DE (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 9/28 (2006.01); A61K 9/20 (2006.01); C08K 5/092 (2006.01); C09D 101/28 (2006.01); C09D 7/63 (2018.01);
U.S. Cl.
CPC ...
A61K 9/2886 (2013.01); A61K 9/2013 (2013.01); A61K 9/2846 (2013.01); A61K 9/2853 (2013.01); A61K 9/2866 (2013.01); A61K 9/2893 (2013.01); C08K 5/092 (2013.01); C09D 7/63 (2018.01); C09D 101/284 (2013.01);
Abstract

The present invention includes acidifying film coating compositions containing a polymer and an acidic component for use on orally-ingestible substrates such as tablets and the like. The acidifying coating compositions can be applied as an aqueous dispersion to an enteric-coated substrate to increase the disintegration resistance to aqueous media of up to pH 5.0. In preferred aspects, the acidic component is citric acid, lactic acid, stearic acid or mixtures thereof. Methods of preparing the dry film coatings, methods of preparing corresponding aqueous dispersions, methods of applying the coatings to substrates and the coated substrates themselves are also disclosed.


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