Invention Grant
- Patent Title: Water-soluble polyvinyl alcohol blend film, related methods, and related articles
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Application No.: US16383015Application Date: 2019-04-12
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Publication No.: US11407866B2Publication Date: 2022-08-09
- Inventor: Jennifer L. Childers , Richard Goetz , Percy Bromby, II , Akio Nishimi , Mitsunori Asada , David M. Lee
- Applicant: MONOSOL, LLC
- Applicant Address: US IN Merrillville
- Assignee: MONOSOL, LLC
- Current Assignee: MONOSOL, LLC
- Current Assignee Address: US IN Merrillville
- Agency: Marshall, Gerstein & Borun LLP
- Main IPC: C08J5/18
- IPC: C08J5/18 ; C08L29/04 ; C08L33/08 ; C11D17/04

Abstract:
Disclosed herein are water-soluble films including a polyvinyl alcohol (PVOH) resin blend and optionally one or more additional components such as plasticizers, fillers, surfactants, and other additives. The PVOH resin blend includes a first copolymer including a first anionic monomer unit and a second PVOH copolymer including a second anionic monomer unit. When the PVOH copolymers are blended in particular proportions and/or selected with regard to various criteria related to physical and chemical film properties, the resulting water-soluble film formed from the PVOH resin blend exhibits maintained film stiffness, and pouch tautness when in contact with liquid pouch contents, and/or maintain acceptable clarity properties, without impairing the ultimate solubility of the water-soluble film.
Public/Granted literature
- US20190338089A1 WATER-SOLUBLE POLYVINYL ALCOHOL BLEND FILM, RELATED METHODS, AND RELATED ARTICLES Public/Granted day:2019-11-07
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