Polyester sheet containing antiblock agent added in...

Details Polyester sheet containing antiblock agent added in... Polyester sheet containing antiblock agent added in...

C - Chemistry, Metallurgy

08

L

18/1211, 18/794

C08L 67/02 (2006.01) C08K 3/36 (2006.01)

Patent

CA 1104314

ABSTRACT OF THE DISCLOSURE A polyester sheet containing an antiblock agent is produced by uniformly blending a small amount of a degraded polycarbonate containing the antiblock agent. The antiblock agent must have an inherent or adjusted pH of less than six to degrade the polycarbonate to lower its molecular weight upon extrusion compounding. This in turn makes a uniform blend and resulting clear sheet with antiblocking properties. In another embodiment, larger amounts of polycarbonate containing the antiblock agent are used.

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