Wear-resistant transportation surface marking method and materials
Assignee3M Innovative Properties Company
InventorsHoward R. Tolliver, Suman K. Patel, Thomas V. Kusilek, Nagraj Koneripalli
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Abstract
Flame-spray transportation surface marking method employing a binder material selected from the group consisting of acrylic polymers and copolymers, olefin polymers and copolymers having a number average molecular weight greater than about 10,000, urethane polymers and copolymers, curable epoxy resins, ester polymers and copolymers, and blends thereof, together with a particulate topcoat or particulate filler selected from the group consisting of reflective elements, skid-resistant particles, magnetizable particles, and mixtures thereof, wherein the binder adheres directly to the transportation surface.
Claims9
A method for marking a transportation surface comprising the steps of:
- a) heating the surface to a temperature above ambient temperature;
- b) melting or otherwise substantially softening a finely-divided, free flowing, flame-sprayable, powder binder material selected from the group consisting of acrylic polymers and copolymers, olefin polymers and copolymers having a number average molecular weight greater than 10,000, urethane polymers and copolymers, curable epoxy resins, ester polymers and copolymers, and blends thereof;
- c) applying the molten or softened binder to the surface together with a particulate topcoat or particulate filler selected from the group consisting of reflective elements, skid-resistant particles, magnetizable particles and mixtures thereof;
- and
- d) allowing the thus-applied materials to cool and form a marker in which the binder adheres directly to the surface.
Dependencies are inferred from the claim text.