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 6890973 B1

PDF
Full Text
Expired
Date of Patent:
May. 10, 2005

Filed:

Jun. 29, 2001
Applicants:

Xuequan Zhang, Taejeon, KR;

Jae Gon Lim, Taejeon, KR;

Sung Cheol Yoon, Seoul, KR;

Inventors:

Xuequan Zhang, Taejeon, KR;

Jae Gon Lim, Taejeon, KR;

Sung Cheol Yoon, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K009/10 ;
U.S. Cl.
CPC ...
Abstract

The syndiotactic polystyrene nanocomposite according to the present invention has nano silicate materials dispersed individually in a styrene polymer matrix by intercalation and exfoliation during polymerization. Besides, the syndiotactic polystyrene nanocomposite according to the present invention is prepared by using a catalytic system composed of a phyllosilicate-supported Group IVB transition metal catalyst and alkylaluminoxane, wherein the phyllosilicate-supported Group IVB transition metal catalyst comprises: a) a polymer, b) a phyllosilicate and c) a Group IVB transition metal compound, and the polymer (a) is used as an insulating material or media of the phyllosilicate (b) and the Group IVB transition metal compound (c).


Find Patent Forward Citations

Zhang, Xuequan. (2005). Syndiotactic polystyrene nanocomposite and manufacturing method thereof (U.S. Patent No. 6890973). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6890973

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