公开(公告)号：US20190338090A1

公开(公告)日：2019-11-07

申请号：US16383057

申请日：2019-04-12

申请人： MONOSOL, LLC

发明人： Jennifer L. Childers ,  Richard Goetz ,  Percy II Bromby ,  Akio Nishimi ,  Mitsunori Asada ,  David M. Lee

IPC分类号： C08J5/18 ,  C11D17/04 ,  C08L29/04

摘要： 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, maintain acceptable clarity properties, and/or demonstrate acceptable band release without impairing the ultimate solubility of the water-soluble film.