Roofing granules of enhanced solar reflectance

Details Roofing granules of enhanced solar reflectance Roofing granules of enhanced solar reflectance

2010-01-04

2011-10-11

Watkins, III, William P (Department: 1783)

Stock material or miscellaneous articles

Structurally defined web or sheet

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

C428S143000, C428S403000, C428S404000, C428S323000, C427S212000, C427S214000, C427S379000, C427S374100

Reexamination Certificate

active

08034432

ABSTRACT:
Roofing granules, methods for their preparation, having a Total Solar Reflectance of at least 25% on a substrate or carrier.

REFERENCES:
patent: 2417058 (1947-03-01), Buzzell et al.
patent: 7455899 (2008-11-01), Gross et al.
patent: 7641959 (2010-01-01), Joedicke

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