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:
Mar. 23, 1999
Filed:
Apr. 24, 1997
Applicant:
Inventors:
Assignee:
Wako Pure Chemical Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
525376 ; 525383 ; 526 89 ; 526200 ; 526201 ; 526202 ; 526203 ; 5262181 ; 526219 ; 534573 ; 534588 ;
Abstract
An azo group-containing high molecular weight compound including --COHN--, an ester linkage, or an amido linkage and a monomer units of 10 to 1000 derived from .alpha.,.beta.-ethylenically unsaturated monomer is effective for producing a block copolymer having two or more polymer segments different in structure by one-step reaction.