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:
Nov. 12, 2019
Filed:
Jun. 13, 2017
Applicant:
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
Inventors:
Yuki Suka, Joetsu, JP;
Yuji Harada, Joetsu, JP;
Takeru Watanabe, Joetsu, JP;
Shiori Nonaka, Joetsu, JP;
Assignee:
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F 7/10 (2006.01); C08G 65/26 (2006.01); C08G 65/329 (2006.01);
U.S. Cl.
CPC ...
C07F 7/10 (2013.01); C08G 65/2609 (2013.01); C08G 65/2618 (2013.01); C08G 65/2639 (2013.01); C08G 65/329 (2013.01); Y02P 20/55 (2015.11);
Abstract
A method for producing a narrowly distributed and high-purity polyalkylene glycol derivative having an amino group at an end, a polymerization initiator for use in the method, and a precursor of the polymerization initiator are provided. The present invention provides: a method for producing a polyalkylene glycol derivative having an amino group at an end, using, as a polymerization initiator, a compound represented by the general formula (I); a compound represented by the following general formula (I); and a precursor thereof: