Air-permeable sheet structural material, leather-like sheet stru

Details Air-permeable sheet structural material, leather-like sheet stru Air-permeable sheet structural material, leather-like sheet stru

1998-07-15

2000-09-05

Raimund, Christopher

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Coated or impregnated woven, knit, or nonwoven fabric which...

Coating or impregnation specified as porous or permeable to...

442221, 442227, 442286, 427373, 4273855, 4273899, B32B 518, B05D 302

Patent

active

061142603

ABSTRACT:
Sheet structural material and leather-like sheet structural material which have a porous layer formed by applying a foamed material having a thixotropy index of 2 to 4 and drying the foamed material and a method of producing the same, are disclosed. The foamed material is prepared by foaming a compound solution containing at least a base resin and a filler. The porous layer has open cells and the diameter of the open cells is in the range from 20 to 250 micrometer. The air permeability of the resulting sheet structural material is 3 to 13 cm.sup.2 /cm.sup.3 /sec.

REFERENCES:
patent: 4029534 (1977-06-01), Bocks et al.

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