Sealing composition and method of making the same

Details Sealing composition and method of making the same Sealing composition and method of making the same

C - Chemistry, Metallurgy

08

L

400/1612

C08L 9/06 (2006.01) C08L 95/00 (2006.01) E01C 5/12 (2006.01)

Patent

CA 1242290

Inventors: John J. Sackis Richard A. Frier and Yoshiki Fujihara, Deceased Title: SEALING COMPOSITION AND METHOD OF MAKING THE SAME ABSTRACT OF THE DISCLOSURE Composition produced from paving grade asphalt, process oil (not over 32%) and SBR rubber or rubbers, such as butadiene- styrene copolymers, in decreasing amounts by weight. A pre- ferred range is asphalt 41.9-61.25%, process oil 18-25%, lower molecular weight butadiene-styrene copolymer 3-17%, higher molecular weight butadiene-styrene copolymer 2-4% and filler, such as limestone dust, 0-20%. Other preferred formulae are shown, as well as temperature and other conditions of the pre- ferred method, including reheating of composition for applic- ation to joints, cracks and the like.

483846

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