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. 15, 2021
Filed:
May. 28, 2019
Mitsubishi Chemical Corporation, Tokyo, JP;
Takahiro Hiura, Osaka, JP;
MITSUBISHI CHEMICAL CORPORATION, Tokyo, JP;
Abstract
A water-soluble film that shows a small change between a film hardness at the time of its normal state and a film hardness at high temperature at the time of its forming or immediately after the forming, that has satisfactory formability, and that is excellent in pinhole resistance and bag breakage resistance includes: a polyvinyl alcohol resin (A); and a plasticizer (B), wherein the plasticizer (B) contains a polyhydric alcohol (b1) having a melting point of 80° C. or more, a polyhydric alcohol (b2) having a melting point of 50° C. or less, and a polyhydric alcohol (b3) having a melting point of more than 50° C. and less than 80° C., and wherein a content ratio (X) of the polyhydric alcohol (b3) with respect to a total amount of the polyhydric alcohols (b1), (b2), and (b3) is 15 wt. % or less.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile