Title:
PLASTIC IDENTIFYING METHOD
Document Type and Number:
WIPO Patent Application WO/2003/046523
Kind Code:
A1
Abstract:
A plastic identifying method comprises (i) a step of allowing the infrared ray of predetermined wave number to be incident on a substance to be identified and containing a plastic, and measuring the intensity of the infrared ray totally reflected by the substance to be identified, thereby obtaining a first infrared absorption spectrum and (ii) a step of collating the first infrared absorption spectrum with the infrared absorption spectrum group measured to the predetermined substance group, thereby identifying the plastic contained in the substance. The predetermined substance group contains the plastic, and each infrared absorption spectrum of the infrared absorption spectrum group is obtained by allowing the infrared ray of the predetermined wave number to be incident on each substance contained in the predetermined substance group, and measuring the intensity of the infrared ray totally reflected in the substance. The collation is performed by comparing the peak of the first infrared absorption spectrum with the peak of each infrared absorption spectrum of the infrared absorption spectrum group. In this identifying method, the kind of the plastic can be identified with excellent accuracy even when additives such as pigment and flame retardant are contained.
Inventors:
IRIE SHOUICHI (JP)
GOTOU TERUO (JP)
HISAZUMI TAKAO (JP)
IWAMOTO HIROSHI (JP)
TOKUMASU HIROYUKI (JP)
SHIMAMURA TOSHIO (JP)
GOTOU TERUO (JP)
HISAZUMI TAKAO (JP)
IWAMOTO HIROSHI (JP)
TOKUMASU HIROYUKI (JP)
SHIMAMURA TOSHIO (JP)
Application Number:
PCT/JP2002/012290
Publication Date:
June 05, 2003
Filing Date:
November 25, 2002
Export Citation:
Assignee:
MATSUSHITA ECO TECHNOLOGY CT C (JP)
IRIE SHOUICHI (JP)
GOTOU TERUO (JP)
HISAZUMI TAKAO (JP)
IWAMOTO HIROSHI (JP)
TOKUMASU HIROYUKI (JP)
SHIMAMURA TOSHIO (JP)
IRIE SHOUICHI (JP)
GOTOU TERUO (JP)
HISAZUMI TAKAO (JP)
IWAMOTO HIROSHI (JP)
TOKUMASU HIROYUKI (JP)
SHIMAMURA TOSHIO (JP)
International Classes:
B07C5/342; G01N21/27; G01N21/3563; G01N21/35; G01N21/55; G01N21/552; (IPC1-7): G01N21/35
Foreign References:
| JP2002286637A | 2002-10-03 | |||
| JP2000214084A | 2000-08-04 | |||
| JPH08136449A | 1996-05-31 | |||
| JPH04348257A | 1992-12-03 | |||
| JP2000186987A | 2000-07-04 | |||
| JP2000199734A | 2000-07-18 | |||
| DE19502134A1 | 1996-08-01 | |||
| JP2001122978A | 2001-05-08 |
Other References:
See also references of EP 1450152A4
Attorney, Agent or Firm:
IKEUCHI SATO & PARTNER PATENT ATTORNEYS (OAP TOWER 8-3, Tenmabashi 1-chome kita-ku Osaka-shi Osaka, JP)
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