Pavement marking pattern and method
The invention herein pertains to pavement marking patterns and the application thereof to roads, streets, walkways and the like. Various pattern designs for the markings are available to replicate layers of bricks, cobblestones, horizontal signage, logos and other components. The marking patterns are composed of two or more independent sections, the first section is a grid representing for example, the mortar joints in a brick wall. The second sections or inserts, for example represent bricks which are contained within the grid. As the first and second sections are generally formed from different colored, preferably thermoplastic materials, a hot melt adhesive spray is utilized on the bottom surface of the marking pattern to bridge the intersections between the first and second sections to maintain the integrity of the marking pattern for convenience during handling and application to a substrate. Preferably the hot melt spray adhesive has approximately the same softening point range as the pattern sections to accommodate heat treatment of the marking pattern during application of the marking pattern to the substrate.
1. A pavement marking pattern consisting essentially of: an independent thermoplastic grid section, and a plurality of independent thermoplastic insert sections, wherein each of said plurality of insert sections resides within said grid section and said plurality of insert sections are coplanar, and wherein said grid section and said plurality of insert sections both comprise a planar top surface and a planar bottom surface that are coplanar to each other, such that said grid section is in direct contact with each of said plurality of insert sections, thereby forming an intersection between said grid section and each of said plurality of insert sections, and further comprising a sprayed polyamide adhesive backing layer on said coplanar bottom surface, said adhesive existing in a circular or spiral configuration crossing each said intersection, wherein said sprayed polyamide adhesive has a softening point of 105°-120° C., and wherein said the sprayed polyamide adhesive was applied at a temperature above said adhesive's softening point such that said adhesive covers 5-90 percent of said coplanar bottom surface.
2. The pavement marking pattern of claim 1 , wherein said pavement marking pattern is a unified pavement marking pattern preventing dislodging and separation of said pavement marking pattern, and each of said plurality of insert sections maintain pavement marker integrity during handling, movement, and/or transportation before application of said pavement marking pattern to a pavement surface by application of heat.