Roofing shingle

Details Roofing shingle Roofing shingle

1982-12-23

1983-09-20

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428141, 428143, 428291, 428323, 428489, B32B 1500

Patent

active

044056800

ABSTRACT:
This invention relates to a roofing shingle having improved low temperature flexibility comprising a flexibilized mat prepared by impregnating a glass fiber web with the blend of an unblown asphalt and a monoalkenyl arene-conjugated diene block copolymer, wherein the flexibilized mat is coated with a blend of an air-blown bitumen and a filler.

REFERENCES:
patent: 3096196 (1963-07-01), Bettoli et al.
patent: 3931440 (1976-01-01), Shepherd et al.
patent: 4082885 (1978-04-01), Roshid et al.
patent: 4135022 (1979-01-01), Kennepohl et al.
patent: 4259127 (1981-03-01), Schachter
patent: 4269886 (1981-05-01), Bondoc
patent: 4357377 (1982-11-01), Yamamoto

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