THERMOPLASTIC COMPOSITE FOR ROAD BED MARKING Russian patent published in 2003 - IPC

FIELD: polymers. SUBSTANCE: invention relates to material used for marking road bed with asphalt- concrete coating. Composite comprises solid polyester resin containing up to 55 wt.-% of terephthalic acid with softening point 70 C, not below, as film-forming agent, polyester with acidic number from 0 to 80 mg/KOH based on aliphatic dibasic acids C₄ and (C₂-C₅)-aliphatic glycols, not less and titanium dioxide as a plasticizing agent, antisedimentation addition, glass microbeads, mineral filling agent and, additionally, one or some synthetic waxes. Combination of components taken in the definite ratio allows to enhance stability against pollution and to reduce water- absorption of thermoplastic composite used for marking ways. EFFECT: improved and valuable properties of composite. 1 cl, 1 tbl, 3 ex