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:
May. 22, 1990
Filed:
Sep. 23, 1988
Ging-Ho Hsiue, Hsinchu, TW;
Wen-Kuei Huang, Hsinchu, TW;
National Science Council, Taipei, TW;
Abstract
The present invention relates to a method of synthesizing a bigraft compolymer based on grafted type peracid polymer, which comprises graft polymerizing a first ethylenically unsaturated monomer containing a carboxyl group onto a polymer substrate having a form of a membrane, particulate or tube; oxidizing the carboxyl groups of the resulting graft polymer into peracids; and then graft polymerizing a second ethylenically unsaturated monomer onto the grafted chain of the graft polymer through the decomposition of the peracid. Surface profile and morphology of the bigraft copolymer membrane product is also investigated by scanning electron microscopy and transmission electron microscopy respectively.