B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
28/10, 183/110
B01D 39/20 (2006.01) B32B 17/12 (2006.01) D04H 1/48 (2006.01)
Patent
CA 1075170
ABSTRACT OF THE INVENTION The present invention permits the production of a filter fabric of enhanced high temperature filtration properties, which filter comprises a surface or batt layer comprising of glass fibres which is joined, by needling, to an underlayer comprising mineral fibres, to which end the batt layer comprises glass fibres 2-8 microns in diameter and the fabric is resin impregnated.
277147
Krohn Wollert H.
Lefkowitz Leonard R.
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