公开(公告)号：US20180319974A1

公开(公告)日：2018-11-08

申请号：US15775140

申请日：2016-11-11

Applicant: BASF SE

Inventor： Theo SMIT ,  Norma Lidia NEGRETE HERRERA ,  Stefan DAHMEN ,  Bernhard STURM ,  Kevin MUELLER ,  Karl HAEBERLE

IPC: C08L65/00 ,  C08G61/08 ,  C08L75/04

CPC classification number: C08L65/00 ,  C08G18/0828 ,  C08G18/3228 ,  C08G18/3234 ,  C08G18/3271 ,  C08G18/348 ,  C08G18/42 ,  C08G18/6659 ,  C08G18/755 ,  C08G61/08 ,  C08G2261/3322 ,  C08G2261/3324 ,  C08G2261/418 ,  C08G2261/60 ,  C08G2261/612 ,  C08J5/18 ,  C08J2333/08 ,  C08J2375/06 ,  C08J2445/00 ,  C08L75/04 ,  C08L2201/54 ,  C09D5/00 ,  C09D133/062 ,  C09D165/00 ,  C09D175/06 ,  C09D129/04

Abstract: The invention relates to aqueous compositions comprising a) at least one polymer PALK in the form of dispersed polymer particles, wherein the polymer PALK is obtainable by ring-opening metathesis polymerization of at least one cyclic olefin monomer, and b) at least one polymer P2 in the form of dispersed polymer particles, wherein the polymer P2 comprises no olefinically unsaturated C—C-bond and has repeating units bearing at least one polar group. The aqueous compositions are suitable in particular for producing sheetings and barrier coatings having a very good barrier action toward gases, such as air, oxygen, nitrogen, argon, carbon dioxide, and in particular toward oxygen and oxygenous gases, such as air. The sheetings and coatings also have very good mechanical properties, in particular a high elongation at break coupled with good tear strength.