US 2025/0243333 A1Published application

Water-soluble film and method for producing the same, and chemical agent package and method for producing the same

AssigneeMitsubishi Chemical Corporation

InventorsYusuke MURAMATSU, Takuma TANIGAWA

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Abstract

A water-soluble film containing pullulan and a hydrophilic group-modified polyvinyl alcohol resin is provided as a water-soluble film that has sufficiently high compatibility between the pullulan and the polyvinyl alcohol resin, and is excellent in water solubility and film mechanical properties, and is useful for packaging applications.

Claims16

Dependent claims

A water-soluble film comprising pullulan and a hydrophilic group-modified polyvinyl alcohol resin.

Dependencies are inferred from the claim text.

Facts

Application: 19/065,469Filed 27 Feb 2025
Priority: JP 2022-18496018 Nov 2022
Published: 31 Jul 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification24 codes

C08J 5/18
Manufacture of articles or shaped materials containing macromolecular substances: manufacture of films or sheets
B29C 41/36
Component parts, details or accessories; Auxiliary operations: feeding the material on to the mould, core or other substrate
B65D 65/46
Packaging materials of special type or form: applications of disintegrable, dissolvable or edible materials
C08F 8/00
Chemical modification by after-treatment

Family

Application19/065,469Continuation
US 2025/0243333 A1This patent

From the US filing history. Foreign family members aren’t listed.

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