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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.:

US 6673286 B1

PDFFull Text
Expired
Date of Patent:
Jan. 06, 2004

Filed:

Sep. 04, 2001

Method of making porous biodegradable polymers

Applicant:
Inventors:

Hsi-Hsin Shih, Taichung, TW;

Kuang-Rong Lee, Hsinchu, TW;

Huey-Min Lai, Hsinchu, TW;

Chin-Chin Tsai, Taichung, TW;

Yuan-Chia Chang, Taipei, TW;

Assignee:

Industrial Technology Research Institute, Hsinchu, TW;

Attorney:

Darby & Darby

Primary Examiner:

Allan R Kuhns

Int. Cl.
CPC ...
B29C 4/402 ;
U.S. Cl.
CPC ...
B29C 4/402 ;
Abstract

A method of making a porous biodegradable polymer is disclosed, which comprises (a) placing a biodegradable polymer and a solvent in a chamber; (b) adding a supercritical fluid to the chamber and maintaining the chamber at a predetermined temperature for a sufficient period of time to allow the supercritical fluid to dissolve into the biodegradable polymer with the help of the solvent; and (c) venting the supercritical fluid and the solvent by reducing the pressure in the chamber, thereby obtaining a porous biodegradable polymer.

Find Patent Forward Citations

Shih, Hsi-Hsin. (2004). Method of making porous biodegradable polymers (U.S. Patent No. 6673286). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6673286

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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