Sorbent pads for hazardous wastes
AssigneeLeucadia, Inc.
InventorKirit Patel
Life of this patent
Estimating the term…
Abstract
A sorbent pad for protection against environmental damage by drums of hazardous waste is disclosed. The sorbent pad comprises sorbent fibers and, on the bottom, a barrier layer. The drum rests on the sorbent pad and any spills or condensation are sorbed by the sorbent pad. The barrier layer prevents any sorbed material from leaching through to the pallet, floor, etc. on which the drum rests.
Claims16
A sorbent pad for sorption of at least one liquid comprising a pad for placement under a container of liquid hazardous waste, said pad further comprising:
- (a) a fiber blanket having a top face and a bottom face and sidewalls which extend from said top face to said bottom face, said blanket comprising fibers which are chemically resistant to said liquid hazardous waste;
- (b) a barrier layer affixed to said bottom face of said blanket and completely covering said bottom face of said blanket, said barrier layer being impervious to said liquid hazardous waste;
- (c) a biaxially oriented polypropylene net on said top face of said blanket and completely covering said top face of said blanket, said net providing strength to said blanket and for distributing the weight of the container;
- and
- (d) a thermoplastic coating which completely coats the exterior edges of said sidewalls of said blanket, said thermoplastic coating being impervious to said liquid hazardous waste.
In combination, a container holding liquid hazardous waste and a sorbent pad positioned beneath said container, said pad comprising:
- (a) a fiber blanket having a top face and a bottom face and sidewalls which extend from said top face and said bottom face, said blanket comprising fibers which are chemically resistant to said liquid hazardous waste;
- (b) a barrier layer affixed to said bottom face of said blanket and completely covering said bottom face of said blanket, said barrier layer being impervious to said liquid hazardous waste;
- (c) a biaxially oriented polypropylene net on said top face of said blanket and completely covering said top face of said blanket, said net providing strength to said blanket and for distributing the weight of the container;
- and
- (d) a thermoplastic coating which completely coats the exterior edges of said sidewalls of said blanket, said thermoplastic coating being impervious to said liquid hazardous waste.
Dependencies are inferred from the claim text.