Microporous sheet, substrate for artificial leather using said s

Details Microporous sheet, substrate for artificial leather using said s Microporous sheet, substrate for artificial leather using said s

1996-09-04

2000-09-12

Cole, Elizabeth M.

Coating processes

With post-treatment of coating or coating material

442 63, 442 77, 442168, 442170, 4283155, 428904, B32B 518

Patent

active

061174890

ABSTRACT:
A microporous sheet suitably used as a substrate for artificial leather for its good balance in properties such as softness, abrasion resistance and the like, obtained by impregnating a non-woven fabric with an elastic polymer and then coagulating the impregnated polymer, said non-woven fabric being a blend of (a) an aromatic polyester fiber (fiber A) and (b) a polyolefin or aliphatic polyamide fiber (fiber B), which sheet is scattered with portions where the fiber A is surrounded by the elastic polymer in a bonded state and portions where the fiber B is surrounded by the elastic polymer in a not-bonded state.

REFERENCES:
patent: 3549475 (1970-12-01), Hefley et al.
patent: 3811923 (1974-05-01), Hammer et al.
patent: 3853608 (1974-12-01), Hammer et al.
patent: 3961107 (1976-06-01), Hammer et al.

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