Sheet material

Details Sheet material Sheet material

1988-11-17

1990-06-05

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

36 44, 428 68, 428284, 428323, 428325, 428402, 428406, B32B 516

Patent

active

049313568

ABSTRACT:
A sheet material which yields under non-uniform pressures caused by irregularities of contact between two relatively hard surfaces adapted to provide a more uniform pressure distribution comprising the combination of relatively small granules and relatively small stiff fibers in a matrix of waxy material adhered to a cover sheet of flexible material.

REFERENCES:
patent: 3552039 (1971-01-01), Fukuoka
patent: 3552044 (1971-01-01), Wiele
patent: 3766669 (1973-10-01), Pearsall
patent: 4255202 (1981-03-01), Swan, Jr.
patent: 4312912 (1982-01-01), Tamura
patent: 4327142 (1982-04-01), Norzi
patent: 4524529 (1985-06-01), Schaefer
patent: 4642911 (1987-02-01), Talarico
patent: 4658515 (1987-04-01), Oatman

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