DOW GLOBAL TECHNOLOGIES LLC ;ROHM AND HAAS COMPANY
发明人:
JIN Xin,SONNENSCHEIN Mark F.,KARIKARI Afua Sarpong
申请号：
US201715775599
公开号：
US2018355135(A1)
申请日:
2017.02.15
申请国别(地区):
美国
年份:
2018
代理人:
摘要：
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.
