C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
117/187, 94/33
C04B 41/49 (2006.01) C04B 41/52 (2006.01) C04B 41/64 (2006.01) C04B 41/70 (2006.01) C08L 95/00 (2006.01)
Patent
CA 1251365
PROTECTIVE COATINGS FOR ASPHALTIC CONCRETE SURFACES AND METHODS FOR FORMING THE SAME Asphaltic concrete surfaces are protected from unde- sirable changes by applying a composition comprising a dior- ganopolysiloxane containing rod-shaped styrene-n-butyl acrylate copolymers which are obtained from the free-radical copolymeri- zation of said monomers in the presence of the diorganopoly- siloxane onto an asphaltic concrete surface and thereafter crosslinking the diorganopolysiloxane composition to form an elastomeric coating thereon. The asphaltic concrete surface may be coated with a primer prior to the application of the cross- linkable diorganopolysiloxane composition in order to improve the adhesion of the resultant crosslinked elastomer containing the rod-shaped copolymers. These asphaltic concrete coatings are especially useful in, for example, hydraulic engineering.
473544
Pfeffer Hans R.
Pusch Rudolf
Wegehaupt Karl-Heinrich
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Wacker-Chemie Gmbh
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