Title:
MULTI-LAYERED PREFORM AND ITS MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2002292723
Kind Code:
A
Abstract:
To provide an inexpensive multi-layered preform having excellent mechanical properties obtained by using a recovered polyester resin and to provide its manufacturing method.
A multi-layered preform has an inner layer composed of a virgin polyester and an outer layer composed of a recovered polyester wherein the multi-layered preform is obtained by compression-molding a co-extruded item of the multi-layered preform having an inner layer composed of the virgin polyester and the outer layer composed of the recovered polyester, a mouth portion and a bottom portion of the preform are formed of only the virgin polyester and the outer layer of the recovered polyester exists only at a body portion.
Inventors:
IMATANI TSUNEO
WATANABE KAZUNOBU
ETO MAKOTO
WATANABE KAZUNOBU
ETO MAKOTO
Application Number:
JP2001099813A
Publication Date:
October 09, 2002
Filing Date:
March 30, 2001
Export Citation:
Assignee:
TOYO SEIKAN KAISHA LTD
International Classes:
B29C43/20; B29C49/00; B29C49/22; B29B11/12; (IPC1-7): B29C49/22; B29B11/12; B29C43/20
Domestic Patent References:
| JPH08318607A | 1996-12-03 | |||
| JP2000238734A | 2000-09-05 | |||
| JPH03234604A | 1991-10-18 | |||
| JPH10337769A | 1998-12-22 | |||
| JPH10337770A | 1998-12-22 | |||
| JPH06255645A | 1994-09-13 | |||
| JPH066911Y2 | 1994-02-23 | |||
| JPH10500078A | 1998-01-06 |
Attorney, Agent or Firm:
Suzuki Ikuo
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