C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
C09J 7/02 (2006.01) B32B 25/04 (2006.01) C09J 121/00 (2006.01) E01F 9/04 (2006.01) E01F 9/08 (2006.01)
Patent
CA 2221728
The invention provides a pavement marking material (10) comprising a top layer (12), a layer of adhesive (16), and an optional base sheet (14) between said top layer (12) and said layer of adhesive (16); said adhesive being an amorphous hydrocarbon elastomer prepared using a solventless hot melt process and comprising: a) a rubber having a glass transition temperature between about --120°C and about -50°C, said rubber being uncrosslinked or crosslinked and soluble in toluene; and b) a tackifier having a ring and ball softening point of between about 70°C and about 140°C, said adhesive comprising between about 80 to about 125 parts by weight of said tackifier per 100 parts by weight of rubber. The pavement marking material may be adhered to a roadway to provide traffic markings and the like.
Matériau de marquage de chaussée comprenant une couche supérieure, une feuille de base optionnelle et une couche d'adhésif, cette dernière étant composée de caoutchouc et d'une charge importante d'agent collant. On a découvert que ces adhésifs présentent une résistance exceptionnelle au cisaillement par impact.
Minnesota Mining And Manufacturing Company
Smart & Biggar
LandOfFree
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