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:
Apr. 22, 2008
Filed:
Nov. 05, 2002
Applicants:
Kenji Takeda, Tokyo, JP;
Makoto Gonokami, Tokyo, JP;
Inventors:
Kenji Takeda, Tokyo, JP;
Makoto Gonokami, Tokyo, JP;
Assignee:
Japan Science and Technology Corporation, Saitama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/48 (2006.01); C08J 2/38 (2006.01);
U.S. Cl.
CPC ...
Abstract
A 1,4-di-substituted diacetylene polymer that is soluble in organic solvent, is composed of a repeating unit represented by the general formula ═CR—C≡C—CR'═ (wherein, R and R′ represent identical or different monovalent organic substituents), and has an average degree of polymerization of 4 to 200 and a ratio (Mw/Mn) of weight average molecular weight (Mw) to number average molecular weight corresponding to said average degree of polymerization (Mn) of 1.1 to 5.0, and