A novel densified fluoropolymer article is described which has a water vapor permeation of about 0.015 g-mm/m<2>/day or less, and preferably has a matrix tensile strength of at least 10,000 psi in two orthogonal directions. The articles are made by compressing expanded porous PTFE at pressures, temperatures and times which result in elimination of the pores, and subsequent stretching above the crystalline melt temperature.
申请公布号
WO2005105434(A2)
申请公布日期
2005.11.10
申请号
WO2005US14114
申请日期
2005.04.21
申请人
GORE ENTERPRISE HOLDINGS, INC.;KENNEDY, MICHAEL, E.;HOLLENBAUGH, DONALD, L.