Inorganic raw felt intended for the production of roof felt

Details Inorganic raw felt intended for the production of roof felt Inorganic raw felt intended for the production of roof felt

1975-08-05

1978-06-27

DeBenedictis, Thomas

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

162145, 162155, 162165, 162169, 260 23, 260 4R, 260 285AS, 260 336R, 260 4218, 264112, 264113, 427186, 427195, D04H 108, C08K 714

Patent

active

040976440

ABSTRACT:
An improved raw felt material having a high degree of strength and flexibility and increased bulk. The raw felt is used in producing an asphalt roofing cover. The felt is formed from an adhesively bonded porous non-woven sheet of an inorganic fibrous material and has finally divided vulcanized rubber particles distributed within the fibrous material.

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