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. 31, 2022
Filed:
Feb. 01, 2019
Applicant:
Denka Company Limited, Tokyo, JP;
Inventor:
Wataru Watanabe, Niigata, JP;
Assignee:
DENKA COMPANY LIMITED, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 216/06 (2006.01); C08F 14/06 (2006.01); C08F 218/08 (2006.01);
U.S. Cl.
CPC ...
C08F 216/06 (2013.01); C08F 14/06 (2013.01); C08F 218/08 (2013.01);
Abstract
A modified vinyl alcohol-based polymer including a polyoxyalkylene unit represented by a general formula (I) in a side chain and a carbonyl unit represented by a general formula (II) at a main chain terminal, wherein with respect to a total mole number of monomer units constituting the main chain of the modified vinyl alcohol-based polymer, a ratio of a mole number of monomer units having the polyoxyalkylene unit represented by the general formula (I) in the side chain to is 0.01 mol % to 5 mol %, and a ratio of a mole number of the carbonyl unit represented by the general formula (II) is 0.01 mol % to 0.5 mol %.