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Patent Searching and Data


Title:
PROCESSES TO CLEAN AND RECYCLE CARPET FIBER AND THERMOPLASTICS MADE FROM SUCH PROCESSES
Document Type and Number:
WIPO Patent Application WO/2011/088437
Kind Code:
A3
Abstract:
A process for cleaning short segments and bundles of carpet yarn removed from used carpets and converting the cleaned carpet fiber filaments into recycled carpet fiber is disclosed. The process reduces mechanical complexity, saves water, and minimizes the volume of waste when compared to known process. The process comprises turbulent mixing of carpet fiber segments and bundles in an aqueous medium to remove entrained particulates and soluble materials. A thermoplastic pellet or granule, carpet fiber, and carpet made from carpet filaments cleaned with the disclosed process is also provided.

Inventors:
AGARWAL NIRMAL K (US)
Application Number:
PCT/US2011/021482
Publication Date:
November 24, 2011
Filing Date:
January 17, 2011
Export Citation:
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Assignee:
INVISTA TECHNOLOGIES SARL (CH)
AGARWAL NIRMAL K (US)
International Classes:
C08J11/04; A47G7/02; B29B17/00; D06G1/00; D06M11/01
Foreign References:
US6752336B12004-06-22
US5722603A1998-03-03
US20080128933A12008-06-05
US6250575B12001-06-26
US20050206029A12005-09-22
Other References:
See also references of EP 2526144A4
Attorney, Agent or Firm:
STERNER, Craig, M. (2801 Centerville RoadWilmington, DE, US)
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