Foamed polyolefin resin sheet

Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component

Reexamination Certificate

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C428S316600, C428S318800, C428S036500, C428S319300, C428S319700, C428S319900, C521S079000, C521S134000, C521S143000, C521S144000

Reexamination Certificate

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06908668

ABSTRACT:
An object of the present invention is to provide a foamed polyolefin resin sheet which exhibits a high adhesive strength when laminated with a layer formed of a saponified ethylene-vinyl ester copolymer and which still exhibits a high adhesive strength even when laminated with a layer of a thermoplastic resin having relatively low polarity such as a polyolefin resin. This object is attained by a foamed polyolefin resin sheet including a foamed polyolefin resin layer and a non-foamed surface layer formed of a thermoplastic resin composition having an A1/A2 ratio falling within a range between 1×10−8and 1×10−1, wherein A1 is a maximum absorbance of the infrared absorption spectrum of the thermoplastic resin composition within an infrared ray wave number region of from 1700 to 1750 cm−1and A2 is a maximum absorbance of the infrared absorption spectrum of the thermoplastic resin composition within an infrared ray wave number region of from 1455 to 1465 cm−1.

REFERENCES:
patent: 4990562 (1991-02-01), Chou et al.
patent: 5116881 (1992-05-01), Park et al.
patent: 5164258 (1992-11-01), Shida et al.
patent: 6183863 (2001-02-01), Kawachi et al.
patent: 6573352 (2003-06-01), Tatsumi et al.
patent: 2001/0041236 (2001-11-01), Usui et al.
patent: WO 94/07930 (1994-04-01), None
patent: 2001113654 (2001-04-01), None
English Abstract of JP 2001113654A (see above for auther, title, and date).
Computer translation of JP 2002-266511. Date: Jun. 2002; Country: Japan; Name: Hanada et al.
JP 07252311 A Abstract in English.

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