Microporous waterproof and moisture vapor permeable structures,

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...

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55 16, 55158, 521 54, 521145, 521154, 524427, 525104, 525903, C08J 940

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active

051570580

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: 4945125 (1990-07-01), Dillon et al.
patent: 5066683 (1991-11-01), Dillon et al.

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