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:
Mar. 19, 2013
Filed:
Jul. 29, 2011
Applicants:
Cheng-chien Yang, Taoyuan County, TW;
Jui-ming Yeh, Taoyuan County, TW;
Tsao-cheng Huang, Taoyuan County, TW;
Inventors:
Cheng-Chien Yang, Taoyuan County, TW;
Jui-Ming Yeh, Taoyuan County, TW;
Tsao-Cheng Huang, Taoyuan County, TW;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K 9/06 (2006.01); C07F 7/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a method for making a poly-lactic acid/silica composite. At first, silica particles are aminated, thus providing aminated silica particles. Secondly, the aminated silica particles are mixed with poly-lactic acid. Then, the mixture is blended and extruded by two micro-screws, thus providing a poly-lactic acid/silica composite. Thus, the mechanical properties of the poly-lactic acid are improved without affecting the biodegradability of the poly-lactic acid.