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:
Jan. 10, 2012
Filed:
May. 18, 2007
Congyun Zhang, Beijing, CN;
Weidong Zhou, Beijing, CN;
Congyun Zhang, Beijing, CN;
Weidong Zhou, Beijing, CN;
Beijing Dingguochangsheng Biotech, Co. Ltd., Beijing, CN;
Abstract
The present invention provides a simple method for introducing magnetic particles into a polymer for further preparing a magnetic polymer, the method using the capability of polymer to absorb Feand other divalent metal ions M, adding alkali immediately each time after absorbing Feor M, thereby generating hydrated oxide of the Feand hydrated oxide of the divalent metal ions in sequence inside the polymer, and then heating, so that the hydrated oxide of the Feand the hydrated oxide of the divalent metal ions are transformed into magnetic particles MFexOy, where M may be Fe, Zn, Mg, Cu, Ca, Ba, Sr, Ni, Co, Mnand the like, and x=1.0˜2.0; y=3.0˜4.0. Compared with the prior art method, the present one is simpler, wider in application, and more operable.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile