Impact-absorbing laminate and method of manufacture thereof

Details Impact-absorbing laminate and method of manufacture thereof Impact-absorbing laminate and method of manufacture thereof

1978-03-23

1979-01-23

Van Balen, William J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

264321, 428119, 428215, 428321, B32B 326

Patent

active

041362268

ABSTRACT:
An impact-absorbing laminate is provided comprising a rigid support layer and an impact-absorbing foam layer fused to at least one surface of the support layer, the impact-absorbing foam layer having a relatively high density outer self-skin on the surface opposing the surface fused to the support layer, the foam and the support layer both being formed of ionomer. The method for manufacturing this impact-absorbing article, comprises the fusing of a resilient foam layer and a non-cellular, relativey rigid, polymer sheet by applying heat to the layers and maintaining the sheets at such elevated temperature, in contact, for a time sufficient to fuse the foam layer and sheet together. A relatively dense self-skin layer is formed on the surface of the foam opposite that in contact with the polymer layer. The ratio of the overall density of the final fused laminate to the unfused layers is most preferably less than about 1.25.

REFERENCES:
patent: 3317363 (1967-05-01), Weber
patent: 3616029 (1971-10-01), Lerman
patent: 3816234 (1974-06-01), Winfield
patent: 3979540 (1976-09-01), Moffett
patent: 4053341 (1977-10-01), Kleiner et al.

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