Method and device for manufacturing an air-permeable lining...

B - Operations – Transporting – 29 – C

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18/1002

B29C 41/28 (2006.01) B29C 33/00 (2006.01) B29C 39/00 (2006.01)

Patent

CA 1082869

ABSTRACT OF THE DISCLOSURE A method for manufacturing an air-permeable lining material, according to which there is applied on a temporary carrier at least one layer of plastisol, gel or solution of a film-forming thermoplastic synthetic material. The layer of synthetic material is stripped off, after hardening, from the temporary carrier. One uses a temporary carrier comprising thin projections extending obliquely relative to its upper surface, the projections penetrating through the layer of syn- thetic material formed on the carrier and extending at least up to the upper surface of said layer of synthetic material such that after the layer of synthetic material has been stripped from the carrier oblique passages are formed in said layer of synthetic material.

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