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:
Jul. 16, 2019
Filed:
Aug. 27, 2015
Sekisui Chemical Co., Ltd., Osaka, JP;
Yasuyuki Ieda, Aichi, JP;
Shintaro Moriguchi, Shiga, JP;
SEKISUI CHEMICAL CO., LTD., Osaka, JP;
Abstract
The present invention provides a water-soluble packaging film which is capable of inhibiting roll contamination, which has favorable unwinding properties to pass through processing steps smoothly, thereby improving the productivity, and which has enhanced water solubility, chemical resistance, visibility, and packaging properties. The present invention relates to a water-soluble packaging film including: polyvinyl alcohol; a plasticizer; and starch, the starch being applied to a front surface and a rear surface of the water-soluble packaging film, the starch being applied in an amount of 0.001 to 0.10 g per 1 mof the water-soluble packaging film, the water-soluble packaging film having a contact angle with distilled water measured by the sessile-drop method of 20° to 50°.