Flame retardant modified asphalt-based material and products the

Details Flame retardant modified asphalt-based material and products the Flame retardant modified asphalt-based material and products the

1995-04-27

1996-05-14

Szekely, Peter A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524 68, 524 69, 524 70, 524 71, C08L 9500, C09K 2104, C09K 2112

Patent

active

055168175

ABSTRACT:
A flame retardant asphalt material useful for the processing and formation of a roofing membrane includes from about 40 to about 50 parts by weight of asphalt; from about 10 to about 20 parts by weight of a copolymer; from 0 to about 5 parts by weight of polypropylene homopolymer having at least about 45 percent by weight of crystallinity; from about 10 to about 40 parts by weight of a functional filler having a decomposition temperature above the processing temperature of the material; from about 0 to about 15 parts by weight of a non-functional filler; and, from about 0.5 to about 10 parts by weight of an intumescent material.

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