<p>Disclosed is a composition comprising a neutralized acid copolymer or ionomer thereof, an organic acid, and optionally other polymers, having a ratio of wet cup permeance to dry cup permeance greater than 10. The composition is useful as a variable vapor barrier for moisture control of buildings. Also disclosed are articles comprising the variable vapor composition and methods of their use.</p>
申请公布号
WO2007146389(A1)
申请公布日期
2007.12.21
申请号
WO2007US13974
申请日期
2007.06.12
申请人
E.I. DU PONT DE NEMOURS AND COMPANY;CHEN, JOHN, CHU;SAMUELS, SAM, LOUIS;SHAH, ASHOK, HARAKHLAL