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:
Sep. 01, 2015
Filed:
Jun. 06, 2013
Qingdao Jifa New Material Co., Ltd., Qingdao, CN;
QINGDAO JIFA NEW MATERIAL CO., LTD., Qingdao, CN;
Abstract
A method for modifying a non-woven fabric of chitosan fiber. The method includes: adding succinic anhydride to an industrial alcohol, ethanol, or acetone; controlling the mass ratio of succinic anhydride to the non-woven fabric at between 0.8 and 3.5; and stirring the resulting mixture until the succinic anhydride has dissolved to yield a succinic anhydride mixed solution; placing the succinic anhydride mixed solution in a constant temperature shaking bath; heating the succinic anhydride mixed solution; adding an HCl solution to the succinic anhydride mixed solution, and stirring evenly to yield a HCl mixed solution; immersing the non-woven fabric in the HCl mixed solution; dehydrating; immersing the non-woven fabric in ethanol or acetone; immersing the non-woven fabric in anhydrous ethanol or pure acetone; dehydrating; and air drying the non-woven fabric.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile