Water-soluble polyvinyl alcohol blend film, related methods, and related articles

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United States of America Patent

PATENT NO 11407866
APP PUB NO 20190338089A1
SERIAL NO

16383015

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
MONOSOL LLC707 E 80TH PLACE SUITE 301 MERRILLVILLE IN 46410
KURARAY CO LTDKURASHIKI

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Asada, Mitsunori Merrillville, US 9 47
Bromby,, II Percy Merrillville, US 8 58
Childers, Jennifer L Lowell, US 13 97
Goetz, Richard Merrillville, US 13 10
Lee, David M Crown Point, US 125 1889
Nishimi, Akio Merrillville, US 5 2

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