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:
May. 03, 2022
Filed:
Mar. 22, 2018
Applicant:
Nof Corporation, Tokyo, JP;
Inventors:
Takuma Tsubusaki, Kawasaki, JP;
Shinya Tamagawa, Kawasaki, JP;
Assignee:
NOF CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 65/331 (2006.01);
U.S. Cl.
CPC ...
C08G 65/3311 (2013.01); C08G 2650/04 (2013.01); C08G 2650/38 (2013.01); C08G 2650/64 (2013.01);
Abstract
To provide a hydrophilic polymer derivative having a novel linker technique which is able to from a hydrophilic polymer pro-drug of a drug containing an amino group or the like in order to overcome the restrictions of conventional hydrophilic polymer pro-drugs. A hydrophilic polymer derivative containing a hydrophilic polymer moiety and an acetal moiety, wherein the hydrophilic polymer derivative contains a structure represented by formula (1) or formula (2):