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1. (WO2017151313) POLYMER FILMS AND DETERGENT PACKETS CONTAINING THEM

Pub. No.:    WO/2017/151313    International Application No.:    PCT/US2017/017859
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Thu Feb 16 00:59:59 CET 2017
IPC: C08J 7/04
Applicants: DOW GLOBAL TECHNOLOGIES LLC
ROHM AND HAAS COMPANY
Inventors: JIN, Xin
SONNENSCHEIN, Mark F.
KARIKARI, Afua Sarpong
Title: POLYMER FILMS AND DETERGENT PACKETS CONTAINING THEM
Abstract:
Provided is a water dispersible polymer film that is useful as an encasing material for detergent packets. The water dispersible polymer film comprises: a polyvinyl alcohol substrate; and a barrier layer coated on at least one surface of the substrate, each barrier layer independently comprising (a) a first copolymer that is an at least partially neutralized maleic anhydride-C2-C8 olefin copolymer or its maleic acid counterpart; or (b) a second copolymer that is an at least partially neutralized ethylene (meth)acrylic acid copolymer, or (c) a mixture of the first copolymer and the second copolymer.