Title:
MULTILAYER PROPYLENE RESIN SHEET AND PACKAGING MATERIAL FOR HEATING TREATMENT COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2010/107003
Kind Code:
A1
Abstract:
Disclosed is a multilayer sheet which has excellent flexibility, transparency, impact resistance, heat resistance, heat-sealing properties and cleanliness, rarely undergoes deterioration in appearance, fluctuations in thickness or the like during multilayer molding, has good moldability, and is rarely reduced in the strength of a sheet base material even when the thickness of the sheet is reduced. Also disclosed is a packaging material for a heating treatment.
Specifically disclosed is a multilayer propylene resin sheet comprising at least two layers, i.e., an inner layer (1) and an outer layer (2), wherein the inner layer (1) comprises a resin composition (X) which comprises 60 to 90 wt% of a propylene resin composition (A) comprising 30 to 70 wt% of a specific propylene-α-olefin random copolymer component (A1) and 70 to 30 wt% of a propylene-ethylene random copolymer component (A2), 40 to 10 wt% of an ethylene-α-olefin copolymer (B), and 1 to 25 wt% of a propylene resin (C)and wherein the outer layer (2) comprises a specific propylene resin composition (Y). Also specifically disclosed is a packaging bag for a heating treatment, which comprises the multilayer propylene resin sheet.
Inventors:
KADOWAKI YUJI (JP)
KANAI GEN (JP)
KANAI GEN (JP)
Application Number:
PCT/JP2010/054363
Publication Date:
September 23, 2010
Filing Date:
March 15, 2010
Export Citation:
Assignee:
JAPAN POLYPROPYLENE CORP (JP)
KADOWAKI YUJI (JP)
KANAI GEN (JP)
KADOWAKI YUJI (JP)
KANAI GEN (JP)
International Classes:
B32B27/32; A61J1/10; B65D65/40; B65D81/24; C08L23/08; C08L23/10; C08L23/16; C08L53/00
Foreign References:
| JP2006307120A | 2006-11-09 | |||
| JP2000272059A | 2000-10-03 | |||
| JPH10152596A | 1998-06-09 | |||
| JP2005132979A | 2005-05-26 | |||
| JPS5819309A | 1983-02-04 | |||
| JPS5995292A | 1984-06-01 | |||
| JPS6035006A | 1985-02-22 | |||
| JPH03163088A | 1991-07-15 | |||
| JP2006035516A | 2006-02-09 | |||
| JP2001172454A | 2001-06-26 | |||
| JPS6035007A | 1985-02-22 | |||
| JPS61130314A | 1986-06-18 | |||
| JPS63295607A | 1988-12-02 | |||
| JPH01275609A | 1989-11-06 | |||
| JPH0241303A | 1990-02-09 | |||
| JPH02131488A | 1990-05-21 | |||
| JPH0276887A | 1990-03-16 | |||
| JPH04300887A | 1992-10-23 | |||
| JPH04211694A | 1992-08-03 | |||
| JPH0543616A | 1993-02-23 | |||
| JPH05209013A | 1993-08-20 | |||
| JPH06239914A | 1994-08-30 | |||
| JPH10226712A | 1998-08-25 | |||
| JPH10226712A | 1998-08-25 |
Other References:
G. GLOCKNER, J. APPL. POLYM. SCI.: APPL. POLYM, SYMP., vol. 45, 1990, pages 1 - 24
L. WILD, ADV. POLYM, SCI., vol. 98, 1990, pages 1 - 47
J.B.P. SOARES, A.E. HAMIELEC, POLYMER, vol. 36, no. 8, 1995, pages 1639 - 1654
MACROMOLECULES, vol. 21, 1988, pages 314 - 319
MACROMOLECULES, vol. 17, 1984, pages 1950
MACROMOLECULES, vol. 10, 1977, pages 636
MACROMOLECULES, vol. 15, 1982, pages 1150
L. WILD, ADV. POLYM, SCI., vol. 98, 1990, pages 1 - 47
J.B.P. SOARES, A.E. HAMIELEC, POLYMER, vol. 36, no. 8, 1995, pages 1639 - 1654
MACROMOLECULES, vol. 21, 1988, pages 314 - 319
MACROMOLECULES, vol. 17, 1984, pages 1950
MACROMOLECULES, vol. 10, 1977, pages 636
MACROMOLECULES, vol. 15, 1982, pages 1150
Attorney, Agent or Firm:
KAWABI Kenji (JP)
Kenji Kawabi (JP)
Kenji Kawabi (JP)
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