Needled fiber mat containing granular agent

Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond

Patent

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Details

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

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