Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1979-02-09
1981-02-10
McCamish, Marion
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428244, 428283, 428284, 428285, 428286, 428287, 428300, B32B 516
Patent
active
042501725
ABSTRACT:
At least two layers of fibrous mat have a layer of granular agent therebetween and are mechanically interlocked by means of needling.
REFERENCES:
patent: 3871850 (1975-03-01), Lenane
Hausheer Hans P.
Mutzenberg Arnold B.
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