B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
183/109
B01D 39/14 (2006.01) B01D 39/20 (2006.01)
Patent
CA 1124659
A B S T R A C T Disclosed are gas vapor treating mats consisting basi- cally of (a) very small (e.g. average 6.3 microns) diameter glass fibers composed of a plurality of filaments and of short length about 6.35 mm long, and intermixed therewith (b) so-called micro- -bits of (i) an expanded thermoplastic styrene polymer and/or lower polyolefin and/or (ii) a flexible,foamed polyurethane, each of the members (i) and (ii) being non-brittle in ex- panded form, and (c) a minor amount of (i) an organic binding agent insoluble in cold water, but soluble in hot water and inert to the glass fiber and the polymer micro-bits and any other constituent of the mat as well as to the contents of the gaseous and/or vapor stream to which the mat is to be exposed, or (ii) a cobeat of wet lap cotton fibers and micro-bits. A gas separation embodiment of these mats also includes polyester fibers and activated carbon. The mats have good tensile strength and porosity to provide maintained good flow-through rates but yet being sufficiently dense to enable filtering finely divided solid particles and/or entrained liquid droplets from aerosols or gases and/or vapor streams, as well as coalescing liquid droplets entrained in them, and also capable of separating some gases from such streams.
321284
Gowling Lafleur Henderson Llp
Klein Max
LandOfFree
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