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:
Jun. 26, 2018
Filed:
Aug. 29, 2005
Applicants:
Satoshi Watanabe, Itoigawa, JP;
Hirohisa Otake, Itoigawa, JP;
Inventors:
Satoshi Watanabe, Itoigawa, JP;
Hirohisa Otake, Itoigawa, JP;
Assignee:
Denki Kagaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08F 222/06 (2006.01); C08F 216/06 (2006.01); C08F 8/44 (2006.01); C08F 222/14 (2006.01);
U.S. Cl.
CPC ...
C08F 222/06 (2013.01); C08F 8/44 (2013.01); C08F 216/06 (2013.01); C08F 222/14 (2013.01); C08F 2810/50 (2013.01);
Abstract
The present invention provides modified PVA having unsaturated double bonds derived from a specific monomer in the main chain of the molecule. A modified polyvinyl alcohol containing bond units of the formula (1) having double bonds in its molecular main chain: wherein each of X1 and X2 is a Clower alkyl group, a hydrogen atom or a metal atom, g is an integer of from 0 to 3, h is an integer of from 0 to 12, Y1 is a hydrogen atom or —COOM, and M is a hydrogen atom, an alkyl group or a metal atom.