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Post Info TOPIC: Low pigments costs algae-retardant roofing granule products containing

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Low pigments costs algae-retardant roofing granule products containing


Ingo B. Joedicke
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Abstract | Drawing | Description | Claims

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.

Patent number: 6838152
Filing date: Jan 21, 2003
Issue date: Jan 4, 2005
Inventor: Ingo B. Joedicke
Assignee: ISP Investments Inc.
Primary Examiner: H. Thi Le
Attorneys: William J. Davis, Imre Balogh
Application number:10/347,978


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