Roofing granules

Details Roofing granules Roofing granules

2006-06-13

2006-06-13

Pak, John (Department: 1616)

Plant protecting and regulating compositions

Plant growth regulating compositions

Aquatic plant regulator

C504S152000, C504S367000, C424S490000, C424S635000, C424S641000, C428S403000, C428S142000, C428S144000, C428S145000, C428S148000, C428S149000, C427S186000, C427S205000, C106S015050, C106S018360

Reexamination Certificate

active

07060658

ABSTRACT:
Use of internal gas-forming compound to adjust coating porosity to control copper release rates in algae-retardant roofing granule products.

REFERENCES:
patent: 2732311 (1956-01-01), Hartwright
patent: 3894877 (1975-07-01), Nelson
patent: 4092441 (1978-05-01), Meyer et al.
patent: 4378403 (1983-03-01), Kotcharian
patent: 4378408 (1983-03-01), Joedicke
patent: 5356664 (1994-10-01), Narayan et al.
patent: 5411803 (1995-05-01), George et al.
patent: 6214466 (2001-04-01), Joedicke
patent: 6235372 (2001-05-01), Joedicke
patent: 2002/0098983 (2002-07-01), Pursell et al.

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