Pavement marking, reflective elements, and methods of making...

Details Pavement marking, reflective elements, and methods of making... Pavement marking, reflective elements, and methods of making...

2008-12-17

2009-08-25

Group, Karl E (Department: 1793)

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

C501S033000, C501S002000, C501S010000, C501S041000

Reexamination Certificate

active

07579293

ABSTRACT:
Presently described are retroreflective articles, such as pavement markings, that comprise transparent microspheres partially embedded in a (e.g., polymeric) binder. Also described are (e.g., glass-ceramic) microspheres, methods of making microspheres, as well as compositions of glass materials and compositions of glass-ceramic materials. The microspheres generally comprise lanthanide series oxide(s), titanium oxide (TiO2), and optionally zirconium oxide (ZrO2).

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