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:
Oct. 23, 2018
Filed:
Sep. 23, 2014
3m Innovative Properties Company, St. Paul, MN (US);
Eugene H. Carlson, Apple Valley, MN (US);
Jong-Min Kim, Hwaseong-Si, KR;
3M INNOVATIVE PROPERTIES COMPANY, Saint Paul, MN (US);
Abstract
The present application generally relates to a thermoplastic road marker having improved crack-resistance, to compositions of such road markers, and to methods of making and applying these road markers. Some embodiments of the present disclosure relate to a thermoplastic road marking composition, comprising: ethylene vinyl acetate ('EVA') and/or ethylene acrylic acid ('EAA') copolymers in an amount of between about 1.5 wt % to about 6.0 wt %; and core-shell particles in an amount of between about 0.5 wt % and about 3.0 wt %. In at least some embodiments, the EVA and/or EAA have a melt flow index equal to or less than 45 g/10 min at 190° C.