The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 1992
Filed:
Feb. 17, 1989
Pierre Laroche, Nalinnes, BE;
Glaverbel, Brussels, BE;
Abstract
A marking kit whose constituents are capable of forming a marking material includes a polymeric matrix-forming material and coated glass beads for incorporation into the matrix. Surface coated glass beads suitable for incorporation into the matrix are also disclosed, as is a process for the surface coating of the glass beads, a reflective surface marking comprising a synthetic polymeric matrix incorporating the coated glass beads; and a process for the reflective marking of a surface. Glass beads are surface coated with a material effective to provide the coated glass beads with a surface tension greater than that of the matrix-forming material and ranging from 30 to 70 mN/m. In the surface treatment, the beads may be brought into contact with at least one organic or organo-metallic compound selected from the group consisting of chloro-, boromo-, iodo-, amino-, chloroamino-, mercapto-, and epoxy-compounds to form a coating on their surface of a type which makes them hydrophobic and gives the beads a surface tension within the most preferred range of 30 to 51 mN/m. The reflective surface marking may be formed by applying a suitable thickness of polymeric matrix-forming material on a surface, such as pavement, and sprinkling and coated glass beads on the surface of that matrix-forming material before it hardens.