Wetlaid-spunbond laminate membrane support

Details Wetlaid-spunbond laminate membrane support Wetlaid-spunbond laminate membrane support

2006-05-30

2006-05-30

Walker, W. L. (Department: 1723)

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

C210S490000, C210S492000, C210S500210, C210S500270, C210S503000, C162S123000, C162S157100, C162S157300, C428S304400

Reexamination Certificate

active

07051883

ABSTRACT:
Nonwoven fabric laminates suitable for use as semipermeable membrane supports are provided. The fabric laminates generally include at least two layers: a spunbond layer of continuous filament fibers and a wet-laid layer of discontinuous filaments. The resulting semipermeable membrane supports provide an advantageous balance of properties, including smoothness, porosity, interlaminar adhesion, and flux properties.

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