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:
Oct. 25, 1983
Filed:
Feb. 13, 1981
Applicant:
Inventors:
Assignee:
Japan Atomic Energy Research Institute, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; A61K / ;
U.S. Cl.
CPC ...
20415915 ; 128156 ; 20415916 ; 20415917 ; 20415922 ; 424 22 ; 424 19 ; 424 32 ; 424 33 ; 424 78 ; 424 81 ;
Abstract
A polymer composition containing a physiologically active substance which can be released at a controlled rate is prepared by contacting one or more polymerizable monomers with the physiologically active substance, making the monomers into a specific shape and then irradiating the shaped article with light or an ionizing radiation at a low temperature below room temperature to polymerize the polymerizable monomers.