Method of making leather fiber insulation by drying-case hardeni

Details Method of making leather fiber insulation by drying-case hardeni Method of making leather fiber insulation by drying-case hardeni

1980-05-06

1981-09-08

Cannon, James C.

Stock material or miscellaneous articles

Composite

Of polyimide

81505, 191455, 191457, 69 21, 156337, 181294, 241 23, 241 25, 252 62, B32B 902, B32B 904, C14B 158

Patent

active

042884985

ABSTRACT:
Chrome tanned leather scrap is converted into thermal insulation by shredding the tanned leather scrap into leather fibers, without damaging the structural fiber integrity, and case hardening the shredded leather fibers. The shredded leather fibers are case hardened by reducing the moisture content thereof to less than 5% by weight, and preferably less than 2%.

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