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:
Feb. 13, 2018
Filed:
Jun. 01, 2016
Applicant:
Jenkem Technology Co., Ltd. (Tianjin), Tianjin, CN;
Inventors:
Assignee:
JENKEM TECHNOLOGY CO., LTD. (TIANJIN), Tianjin, CN;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G 65/332 (2006.01); C08G 65/333 (2006.01);
U.S. Cl.
CPC ...
C08G 65/3322 (2013.01); C08G 65/332 (2013.01); C08G 65/33331 (2013.01); C08G 65/33334 (2013.01); C08G 65/33337 (2013.01); C08G 2650/30 (2013.01); C08G 2650/32 (2013.01);
Abstract
Disclosed are multi-arm polyethylene glycol derivatives having structure of formula I or formula VI. Compared with straight chain polyethylene glycol, multi-arm polyethylene glycol has a plurality of terminal groups, thus has a plurality of introducing points of functional groups and can support a plurality of reactive terminal groups, thereby enabling multi-arm polyethylene glycol to have more flexibility and wider range of application.