METHOD FOR RECYCLING CARPET AND RECYCLABLE CARPET, AND RECYCLE SYSTEM FOR RECYCLABLE CARPET

Title:

METHOD FOR RECYCLING CARPET AND RECYCLABLE CARPET, AND RECYCLE SYSTEM FOR RECYCLABLE CARPET

Document Type and Number:

WIPO Patent Application WO/2002/001989

Kind Code:

A1

Abstract:

A method for recycling a carpet which comprises reutilizing a carpet wherein a backing layer (5) and a surface layer (1) has been made from thermoplastic resin materials of the same type or different types and the backing layer (5) and the surface layer (1) have been adhered to each other by the use of a hot melt type adhesive (4), characterized in that it comprises a delamination step of peeling an old surface layer (1) from a backing layer (5) of a used carpet and an adhesion step of adhering a new surface layer (1) onto an old backing layer (5) from which a surface layer (1) has been peeled; and a method which further comprises a crushing step of crushing an old backing layer (5) and an old surface layer (1) separated, a regeneration step of producing a new backing layer (5) and surface layer (1) by regeneration, and an adhesion step of adhering them.

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Inventors:

NAGATSUMA KAZUO (JP)
HORIKOSHI TAKAO (JP)

Application Number:

PCT/JP2001/005534

Publication Date:

January 10, 2002

Filing Date:

June 28, 2001

Export Citation:

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Assignee:

SANKYO FRONTIR CO LTD (JP)
NAGATSUMA KAZUO (JP)
HORIKOSHI TAKAO (JP)

International Classes:

B29B17/00; B29B17/02; B29B17/04; B32B27/08; D06N7/00; (IPC1-7): A47G27/02; B32B5/00

Foreign References:

US5748061A	1998-05-05
JPH06343542A	1994-12-20
JP2000083796A	2000-03-28
JPH09173197A	1997-07-08
JPS5063024A	1975-05-29
US5728741A	1998-03-17