Lightweight asphalt based building materials and process for mak

Details Lightweight asphalt based building materials and process for mak Lightweight asphalt based building materials and process for mak

1985-09-16

1987-01-06

Thibodeau, Paul J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

427186, 427187, 427202, 4273981, 428291, 428323, 428331, 428489, B32B 1102, B32B 1110, B05D 112

Patent

active

046346228

ABSTRACT:
A lightweight asphalt roofing product wherein the asphalt-based coating has a specific gravity less than 1.0. A lightweight filler is used which has an effective specific gravity in the range of 0.10-0.50 and is present in the coating in the range of 3%-25% by weight of the filled coating. In a preferred embodiment, the filler particles have hollow, gas filled inclusions, and comprise expanded perlite particles or expanded permicite particles.

REFERENCES:
patent: 3138897 (1964-06-01), McCorkle
patent: 3561334 (1971-02-01), Gerosa et al.
patent: 4168179 (1979-09-01), Hesseler
patent: 4183980 (1980-01-01), Nielson
Nonmetallic Minerals, Labdo, McGraw-Hill Book Co. Inc., Second Edition, 1951, pp. 407-415.

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