High content polyamide hot-applied thermoplastic composition
OwnerRobert W. Greer, Derron Henderson +1inventors
InventorsRobert W. Greer, Derron Henderson, Vince Wilkins
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Abstract
A hot applied thermoplastic pavement composition and method of using a hot applied thermoplastic pavement composition includes a modified polyamide resin in the range of between 3 and 10 percent by weight, wherein the composition contains rosin-modified esters, a copolymer, 30-70 percent by weight of a glass bead intermix, a range of between 1 and 15 percent by weight of either white or yellow pigment, the balance of the composition being selected from the group consisting of one or more plasticizers, inorganic fillers, waxes, antioxidants and light stabilizers.
Claims20
A hot applied thermoplastic pavement marking composition comprising:
- 3 to 10 weight percent of a modified polyamide resin comprising a di-functional amine;
- a rosin-modified ester;
- a copolymer;
- 30 to 70 weight percent of a glass bead intermix;
- 1 to 15 weight percent of a white or yellow pigment;
- and
- one or more of a plasticizer, an inorganic filler, a wax, an antioxidant or a light stabilizer,
- wherein the ester comprises one or more of a pentaerythritol modified ester, a maleic modified glycerol rosin ester or ethylene maleic anhydride.
A thermoplastic marking for a substrate, the marking comprising:
- a polyamide resin comprising a di-functional amine;
- a rosin-modified ester;
- a copolymer;
- and
- up to 50 weight percent of a glass bead intermix comprising AASHTO Type 1 glass beads and one of AASHTO Type 3 glass beads or AASHTO Type 4 glass beads,
- wherein the marking has a softening point from 115° C. to 140° C.
Dependencies are inferred from the claim text.