Low pigments costs algae-retardant roofing granule products...

Details Low pigments costs algae-retardant roofing granule products... Low pigments costs algae-retardant roofing granule products...

2005-01-04

2005-01-04

Le, H. Thi (Department: 1773)

Stock material or miscellaneous articles

Structurally defined web or sheet

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

C428S149000, C428S150000, C428S328000, C428S331000, C428S403000, C428S404000, C052S518000, C427S186000, C427S192000, C427S202000, C427S204000, C427S205000, C427S215000, C427S219000

Reexamination Certificate

active

06838152

ABSTRACT:
Algae-resistant roofing granules consisting of one or two coats of a fired semi-ceramic composition having a metallic copper powder which does not significantly affect the color tint strength of the pigment contained in the coatings.

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