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US 2014/0193576 A1Published application
Pavement Marking Materials and Methods
Assignee3M Innovative Properties Company
InventorsEugen H. Carlson, Alexander J. Kugel, Matthew D. Wilding, Pamela A. Percha
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Abstract
The thermoplastic pavements markers and pavement marking compositions of the present application include a miscible blend of ethylene acrylic acid polymers and have a crystallization onset temperature observed upon cooling of greater than 65.6° C. (150° F.).
Claims29
A thermoplastic pavement marking composition, comprising:
- a miscible blend of ethylene acrylic acid polymers including
- a first ethylene acrylic acid polymer having a number average molecular weight between about 1.0×104 grams per mole and about 1.0×105 grams per mole;
- and
- a second ethylene acrylic acid polymer having a number average molecular weight between about 1500 grams per mole and about 5000 grams per mole;
- wherein the crystallization onset temperature observed upon cooling of the thermoplastic pavement marking composition is greater than 65.6° C. (150° F.).
2 more elements
A thermoplastic pavement marking composition, comprising:
- a miscible blend of ethylene acrylic acid polymers including
- a first ethylene acrylic acid polymer having an acid content between about 3% and about 20% and
- a second ethylene acrylic acid polymer having an acid content between about 5% and about 15%
- wherein the crystallization onset temperature observed upon cooling of the thermoplastic pavement marking composition is greater than 65.6° C. (150° F.).
1 more element
A method of forming a pavement marking, comprising:
- heating the thermoplastic pavement marking of any of the preceding claims;
- and
- applying the resulting homogenous mixture to a roadway.
Dependencies are inferred from the claim text.