Laminate for automobile parts

Details Laminate for automobile parts Laminate for automobile parts

2005-05-03

2005-05-03

Hightower, P. Hampton (Department: 1711)

Stock material or miscellaneous articles

Composite

Of polyamide

C428S034100, C428S034700, C428S035700, C428S036900, C428S036910, C428S411100, C428S475800, C428S476100, C220S004130, C220S062220, C220S562000

Reexamination Certificate

active

06887581

ABSTRACT:
The present invention provides a laminate for automobile parts having a layer A made from a polyamide resin composition containing 70-99 wt % of (a) a specific polyamide polymer, and 1-30 wt % of (b-1) an ethylene copolymer containing an epoxy group and/or (b-2) an ethylene copolymer modified by an acid anhydride, and a layer B made from a resin composition containing (c-1) a polyethylene resin modified by an acid anhydride and/or (c-2) a polyethylene resin containing an epoxy group, wherein the layer A and the layer B are heat-sealed, except when (1) the layer A contains (b-1) alone as the ethylene copolymer and the layer B contains (c-2) alone as the polyethylene resin; and when (2) the layer A contains (b-2) alone as the ethylene copolymer and the layer B contains (c-1) alone as the polyethylene resin. The laminate of the present invention is superior in strength, stiffness and gasoline barrier property that the automobile parts are required to have.

REFERENCES:
patent: 3873667 (1975-03-01), Preto et al.
patent: 4535901 (1985-08-01), Okudaira et al.
patent: 5945206 (1999-08-01), Jogan et al.
patent: 6391412 (2002-05-01), Hata et al.
patent: 6398059 (2002-06-01), Hayashi et al.
patent: 6432548 (2002-08-01), Alex et al.
patent: 6436547 (2002-08-01), Toft et al.
patent: 6555243 (2003-04-01), Flepp et al.
patent: 6656553 (2003-12-01), Nishi et al.

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