Phosporescent polycarbonate, concentrate and molded articles
AssigneeGeneral Electric Company
InventorsMichael W. Brown, David Rosendale, Philippe Schottland
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Abstract
Thermoplastic composition comprising a thermoplastic resin and a phosphorescent pigment with a aluminate matrix expressed by M—Al in which M is at least one metal element selected from calcium, strontium and barium and Al represents an aluminate group, wherein the pigment has been coated with a silicone oil. Objects formed by injection molding of the thermoplastic resin compositions. The compositions of the invention exhibit improved melt flow stability and suffer less from graying upon compounding them in an extruder.
Claims16
A thermoplastic composition comprising at least one thermoplastic resin and a phosphorescent pigment with an aluminate matrix expressed by M—Al, in which M is at least one metal element selected from the group consisting of calcium, strontium and barium and Al represents an aluminate group, wherein the phosphorescent pigment is coated with a silicone oil.
The objects formed according to claim 16, wherein said objects are films or sheets.
Dependencies are inferred from the claim text.