Multiple layers laminated polyolefin foam

Details Multiple layers laminated polyolefin foam Multiple layers laminated polyolefin foam

2006-01-17

2006-01-17

Vo, Hai (Department: 1771)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

C428S319300, C428S319700, C428S314400, C428S314800, C428S212000, C428S213000

Reexamination Certificate

active

06986941

ABSTRACT:
The present invention relates to a sheet or board like multiple layers laminated polyolefin foam having a plurality of polyolefin layers laminated on at least one side of a polyolefin foam by a coextrusion method. More specifically, the present invention relates to said multiple layers laminated polyolefin foam, wherein the thickness of the outermost layer constituting the plurality of polyolefin layers is 5 to 80 μm, and the density d (g/L) of the polyolefin foam, the melt flow rate X (g/10 min) of the polyolefin constituting the innermost layer among the plurality of polyolefin layers, and the thickness Y (μm) of the innermost layer of the multiple polyolefin layers satisfy the following relationships (1) to (4).in-line-formulae description="In-line Formulae" end="lead"?Y≦0.29dX  (1)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?5≦X≦40  (2)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?70≦Y≦300  (3)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?100≦d≦300  (4)in-line-formulae description="In-line Formulae" end="tail"?

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