VESSEL LID COMPRISING LAMINATED MATERIAL

Title:

VESSEL LID COMPRISING LAMINATED MATERIAL

Document Type and Number:

WIPO Patent Application WO/1991/001922

Kind Code:

A1

Abstract:

This invention consists in a metallic lid capable of being easily opened when cut at the score thereof by the seal opener, in which, by adapting a biaxially stretched polyester film provided on the metallic material and extended on at least the inner side of vessel to have X-ray diffraction strength ratio as IA/IB ranging from 4 to 17 as well as in-plane orientation anisotropic index of 30 or under, the pin holes and cracks are prevented from occurring at the scored part, anticorrosiveness of the whole of the lid including the score part is significantly improved, the force for opening the lid is reduced, that is, the opening capability is increased, and occurrence of feathering can be prevented.

Inventors:

WATANABE TOSHIAKI (JP)
SHIBUE MASATSUNE (JP)
MATSUBAYASHI HIROSHI (JP)
KOMATSU IKUO (JP)

Application Number:

PCT/JP1990/000990

Publication Date:

February 21, 1991

Filing Date:

August 02, 1990

Export Citation:

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Assignee:

TOYO SEIKAN KAISHA LTD (JP)

International Classes:

B29D22/00; B65D41/32; B32B15/08; B65D17/34; (IPC1-7): B65D17/28

Domestic Patent References:

WO1988000159A1

1988-01-14

Foreign References:

JPH01182248A	1989-07-20
JPH01124551A	1989-05-17
JPH06422530A
JPS63125152A	1988-05-28
JPH06312445A	1994-11-08
EP0273980A1	1988-07-13
US4828136A	1989-05-09
JPH06252045A	1994-09-09
JPS60172637A	1985-09-06
JPH05823219B

Other References: