Microporous waterproof and moisture vapor permeable structures,

Details Microporous waterproof and moisture vapor permeable structures, Microporous waterproof and moisture vapor permeable structures,

1990-05-01

1991-11-19

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

55 16, 55158, 521 55, 521134, 521145, 521154, 525104, 525903, 524427, C08J 940

Patent

active

050666835

ABSTRACT:
Microporous waterproof and moisture vapor permeable products are described which are formed from a matrix having an internal microstructure which is coated with a hydrophobic material. A process is described including the steps of (1) applying to the surface of the matrix a liquid hydrophobic material, (2) allowing the liquid to penetrate into the microstructure and then (3) drying, vulcanizing or curing the product.

REFERENCES:
patent: 3325434 (1967-06-01), Tully
patent: 4187390 (1980-02-01), Gore
patent: 4194041 (1980-03-01), Gore et al.
patent: 4631544 (1986-09-01), Burleigh
patent: 4764560 (1988-08-01), Mitchell
patent: 4945125 (1990-07-01), Dillon et al.

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