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:
Nov. 24, 1992
Filed:
Jan. 31, 1990
Applicant:
Inventors:
Takamasa Kuroya, Osaka, JP;
Yuichi Inoue, Osaka, JP;
Assignees:
Nitto Denko Corporation, Osaka, JP;
Sunstar K.K., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J / ; C08L / ;
U.S. Cl.
CPC ...
524 37 ; 524 42 ; 524 43 ; 524 44 ; 427-2 ; 427-3 ;
Abstract
A soft film applicable to the oral mucosa and a drug preparation comprising said film are disclosed, the film comprising a homogeneous mixture comprising a vinyl acetate homopolymer, an acrylic acid polymer, and a cellulose derivative capable of being dissolved in or swollen with water and a lower alcohol. The film or preparation is less causative of an adverse feeling on application to the oral mucosa, excellent in shape retention on water absorption, and adhesive to the oral mucosa for an extended period of time.