公开(公告)号：US11879214B2

公开(公告)日：2024-01-23

申请号：US17178715

申请日：2021-02-18

申请人： Actega North America, Inc.

发明人： Anshyang Lin ,  Stephen Martin ,  Carmen Panto, Jr. ,  Grant Schutte

IPC分类号： D21H21/16 ,  C09D5/00 ,  C09D123/08 ,  D21H19/82 ,  C09D7/65 ,  D21H19/12 ,  C09D133/06

CPC分类号： D21H21/16 ,  C09D5/002 ,  C09D7/65 ,  C09D123/0869 ,  C09D133/062 ,  D21H19/12 ,  D21H19/824

摘要： An aqueous barrier coat for formable cellulosic substrates comprises a blend of A) at least one aqueous polymer binder dispersion at 40 wt % to 95 wt %, B) at least one active filler at 3 wt % to 30 wt % and, C) one or more optional additives, such as wetting additives, dispersants, thickeners, defoamers, and crosslinkers. Crystallinity is present in at least one of the polymer binder dispersion and active filler particle. The resulting dried film has a shear storage modulus between 50° C. and 60° C. in the range of 1.5×106 to 1×109 Pascals, a shear storage modulus between 80° C. and 90° C. in the range of 2×105 to 5×107 Pascals, and a shear storage modulus between 100° C. and 110° C. is in the range of 5×103 to 1×106 Pascals. The total weight % of crystalline polymer binder and the crystalline active filler combined is greater than 50%.