Porous plastic film product, useful as a breathable wall...

Details Porous plastic film product, useful as a breathable wall... Porous plastic film product, useful as a breathable wall...

C - Chemistry, Metallurgy

08

J

C08J 9/14 (2006.01) B01D 39/00 (2006.01) B32B 27/22 (2006.01) D06N 3/00 (2006.01) D06N 3/06 (2006.01) D06N 7/00 (2006.01) E04F 13/00 (2006.01) B29C 67/22 (1990.01)

Patent

CA 2099431

ABSTRACT The invention relates to a breathable, plastic film, useful as a wall covering material. A low boiling additive, such as water, is added to a plastisol before extrusion. During extrusion and curing of the plastisol into a film or coating, the low boiling additive is volatilized and the resulting evolved gas perforates the forming film. In this manner a permeable plastic film, such as vinyl, is produced.

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