Oil treated mineral filler for asphalt

Details Oil treated mineral filler for asphalt Oil treated mineral filler for asphalt

C - Chemistry, Metallurgy

08

L

6/160, 117/176

C08L 95/00 (2006.01) B32B 11/10 (2006.01) C08K 9/04 (2006.01) D06N 5/00 (2006.01)

Patent

CA 2006883

FN: 4363h. CAN lA OIL TREATED MINERAL FILLER FOR ASPHALT Abstract of the Disclosure Use of surface modification treatment on mineral fines to obtain higher filler loadings in asphalt used for roofing shingles. Mineral fines are coated with oil such as a petroleum oil at about the 0.25 - 1.0 percent level before they are incorporated into molten asphalt. This treatment makes minerals which otherwise would be uncompetitive with traditional fillers, such as limestone, sufficiently compatible with asphalt to be a viable alternative to limestone. Nepheline syenite mineral fines treated in this manner have been successfully incorporated into asphalt for shingles at a loading of 65 - 70%.

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