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:
Aug. 09, 2016
Filed:
Feb. 24, 2012
Masako Kawagoe, Kurashiki, JP;
Shinsuke Nii, Tainai, JP;
Masako Kawagoe, Kurashiki, JP;
Shinsuke Nii, Tainai, JP;
KURARAY CO., LTD., Kurashiki-shi, JP;
Abstract
There is provided a polyoxyalkylene-modified vinyl acetal polymer which has polyoxyalkylene groups represented by general formula (I) in side chain, in which a viscosity-average polymerization degree P is 150 to 5000, an acetalization degree is 10 to 85 mol % and a polyoxyalkylene modification rate S is 0.1 to 10 mol %. Such a polymer has a feature that a film or sheet produced therefrom has improved film strength and flexibility, as well as a feature that a resin composition therefrom is free from phase separation. wherein Rrepresents a hydrogen atom or a methyl group, Rrepresents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, and 1≦m≦10 and 3≦n≦20.