Protective mat and method of making same

Details Protective mat and method of making same Protective mat and method of making same

1977-12-23

1979-01-30

Ansher, Harold

Stock material or miscellaneous articles

Plural parts with edges or temporary joining means each...

428 45, 428 47, 428 68, 428 71, 428159, 428220, 428315, 428322, 428339, 428909, B32B 302, B32B 2700, B32B 3118

Patent

active

041373480

ABSTRACT:
An impact and energy absorbing mat is produced by extruding sheets of resilient compressible foamed polymeric resin sheets, preferably of a foamed ionomer, and having self formed skins on opposite faces. The sheets are stacked and the stack sliced along planes perpendicular to the sheets by hot wires to fuse the borders of contiguous sheets and form individual coherent slabs. Each slab is sandwiched between preferably similar polymeric resin films which are heated by hot plates to fuse the films to the slab surfaces and further fuse the skin borders to each other. Alternatively, the films may be omitted and self skins formed by the hot plate. The resulting mat includes side by side narrow foamed resilient resin strips having side skins, the borders of contiguous skins being fused to each other and the joined strips having their opposite faces covered by self or film formed skins fused thereto. The mat possesses unexpected superior energy and impact and other desirable properties.

REFERENCES:
patent: 3041220 (1962-06-01), Martin et al.
patent: 3198690 (1965-08-01), Starke
patent: 3531367 (1970-09-01), Karsten
patent: 3586649 (1971-06-01), Cobbledick
patent: 3873407 (1975-03-01), Kumata et al.
patent: 3989870 (1976-11-01), Bocks et al.
patent: 4016315 (1977-04-01), Szabo
patent: 4038350 (1977-07-01), Jaques
patent: 4082874 (1978-04-01), Traylor

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