Use of waste carpet as filler

Details Use of waste carpet as filler Use of waste carpet as filler

2006-05-16

2006-05-16

Boykin, Terressa M. (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Treating polymer containing material or treating a solid...

C156S094000, C156S198000, C156S332000, C156S393000, C428S095000, C428S343000, C428S364000, C510S278000, C528S480000

Reexamination Certificate

active

07045590

ABSTRACT:
By utilizing specially processed waste carpeting as a filler in the production of carpet backcoating, roofing materials, or other similar products, the amount of waste carpeting that is landfilled or otherwise disposed of is significantly reduced as is the need for mining the mineral fillers. Waste carpeting (post-consumer and/or waste from new carpet manufacture) containing calcium carbonate and a thermoplastic resin is collected and size-reduced to a size corresponding to the size of calcium carbonate typically used as a filler. The size-reduced waste carpeting is added as filler to at least one other material, such as polymers in standard latex, EVA, or PVC carpet backcoatings, to provide a composite used in the manufacture of a useful product (like carpet backcoating), and then the composite material is used to make the useful product (such as carpet backcoating, which is used as a primary or secondary backcoating in the manufacture of new carpeting). The waste carpeting may provide between 0–100% of the filler of carpet backcoating, with any remainder made up by conventional fillers, such as calcium carbonate.

REFERENCES:
patent: 5169870 (1992-12-01), Corbin et al.
patent: 5240530 (1993-08-01), Fink
patent: 5288349 (1994-02-01), Fink
patent: 5294384 (1994-03-01), David et al.
patent: 5430068 (1995-07-01), Subramanian
patent: 5497949 (1996-03-01), Sharer
patent: 5498667 (1996-03-01), David et al.
patent: 5518188 (1996-05-01), Sharer
patent: 5535945 (1996-07-01), Sferrazza et al.
patent: 5547731 (1996-08-01), Tesch
patent: 5578357 (1996-11-01), Fink
patent: 5728444 (1998-03-01), Fink
patent: 5728741 (1998-03-01), Zegler et al.
patent: 5814673 (1998-09-01), Khait
patent: 5855981 (1999-01-01), Zegler et al.
patent: 5906877 (1999-05-01), Popper et al.
patent: 5912062 (1999-06-01), Kotliar et al.
patent: 5914353 (1999-06-01), Grizzle et al.
patent: 6051300 (2000-04-01), Fink
patent: 6228479 (2001-05-01), Zegler et al.
patent: 6786988 (2004-09-01), Bell
patent: 406 169 (2000-03-01), None
patent: 0 710 305 (1996-05-01), None
patent: 0 747 525 (1996-12-01), None
patent: 0 867 557 (1998-09-01), None
patent: 0 891 848 (1999-01-01), None
patent: 0 943 728 (1999-09-01), None
patent: 60206868 (1985-10-01), None
patent: 63092765 (1988-04-01), None
patent: WO 99/40250 (1999-08-01), None
patent: WO 9940250 (1999-08-01), None

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