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:
Apr. 15, 1986
Filed:
Jul. 15, 1983
Isao Kaetsu, Gunma, JP;
Masaharu Asano, Gunma, JP;
Minoru Kumakura, Gunma, JP;
Masaru Yoshida, Gunma, JP;
Japan Atomic Energy Research Institute, Tokyo, JP;
Abstract
A process is, herein disclosed, for producing a slow release composite having a physiologically active substance encapsulated therein, which comprises preparing a system wherein one or more physiologically active substances are in contact with protein from one or more protein sources, and bringing said system into direct contact with steam at temperatures between 50.degree. C. and 100.degree. C. to denature the protein and make the same hydrophobic, to thereby make a slow release composite having the physiologically active substance dispersed, fixed and encapsulated therein. And a process is also disclosed for producing a slow release composite which comprises preparing a mixture of one or more hydrophilic polymerizable monomers containing the body fluid and/or isotonic solution, protein from one or more protein sources, and one or more physiologically active substances, subjecting the mixture to direct contact with steam and irradiation with light or ionizing radiation, said treatment with steam being performed either before or simultaneously with irradiation with light or ionizing radiation.