发明名称 |
Fade resistant black coating for roofing granules |
摘要 |
A composition, containing carbon black pigment particles of a specific size and an inorganic binder, suitable for use as a color coating on inorganic substrates to provide a greater resistance to fade than conventional coating compositions. The particles have a mean particle size in the range of about 150 nm to about 500 nm and a surface area per weight of particles of about 20 m2/g or less. The composition is useful in producing coated inorganic granules for specific uses, such as roofing granules.
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申请公布号 |
US6238794(B1) |
申请公布日期 |
2001.05.29 |
申请号 |
US19990242115 |
申请日期 |
1999.02.10 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
BEESLEY ARTHUR H.;SOBON CHRISTINE A.;GEORGE BILL L.;WALETZKO NANCY A. |
分类号 |
C04B20/10;E04D7/00;(IPC1-7):B32B5/16;B05D7/00 |
主分类号 |
C04B20/10 |
代理机构 |
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代理人 |
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主权项 |
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