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Patent Searching and Data


Title:
METHOD FOR PROCESSING POLYMER LAMINATE
Document Type and Number:
WIPO Patent Application WO/2013/051161
Kind Code:
A1
Abstract:
Provided is a method for processing a polymer laminate obtained by welding and bonding a PVC layer and a layer formed using a polar polymer material excluding PVC ("extra-polar [MV1] polymer layer"), the method capable of facilitating physical delamination and significantly improving productivity in sorting and recovery for each layer when the polymer laminate is processed. A processing method for sorting a polymer laminate (11) such as an inner sheet comprising thermoplastic polar polymer materials of different types [MV2] after the layers are separated by physical delamination. The polymer laminate (11) is a welded body of a PVC layer (13) containing a plasticizer and an extra-polar polymer layer (15). The polymer laminate (11) is immersed in an organic solvent having a non-polar solvent such as lacquer thinner as a main component, physical delamination is performed after the plasticizer is eluted from the PVC layer (13) without substantially dissolving the PVC in the PVC layer (13), and the PVC layer (13) and the extra-polar polymer layer (15) are sorted.

Inventors:
KUROKAWA TOMOKATSU (JP)
Application Number:
JP2011/076647
Publication Date:
April 11, 2013
Filing Date:
November 18, 2011
Export Citation:
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Assignee:
KANIE PROPANE CO LTD (JP)
KUROKAWA TOMOKATSU (JP)
International Classes:
B29B17/02; C08J11/02
Foreign References:
JPH11323003A1999-11-26
JPS5738834A1982-03-03
US4596603A1986-06-24
JP2002523254A2002-07-30
JPH07224186A1995-08-22
JPH0959423A1997-03-04
JPH031908A1991-01-08
JPH09249767A1997-09-22
Attorney, Agent or Firm:
IIDA, Akio et al. (JP)
Akio Iida (JP)
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Claims: