Asphalt water-proofing material

Details Asphalt water-proofing material Asphalt water-proofing material

1979-07-20

1980-10-28

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428235, 428253, 428255, 428287, 428300, 428489, B32B 506

Patent

active

042307627

ABSTRACT:
An asphalt water-proofing material comprising a core impregnated with petroleum asphalt. The core is made of composite material including a non-woven fabric layer formed of long filaments of synthetic resin arranged in random fashion and a woven or knitted fabric layer. The non-woven fabric and woven or knitted fabric layers are connected together by needle-punching whereby the long filaments of the non-woven fabric layer are forced into the woven or knitted fabric layer to integrally connect these layers to form said core.

REFERENCES:
patent: 4035544 (1977-07-01), Iwasaki et al.

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