Compositions comprising metal salts of hexahydrophthalic...

Details Compositions comprising metal salts of hexahydrophthalic... Compositions comprising metal salts of hexahydrophthalic...

2006-07-03

2009-02-17

Jagannathan, Vasu (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S396000, C524S397000, C524S285000, C524S492000, C524S444000, C524S445000, C524S570000, C525S240000

Reexamination Certificate

active

07491762

ABSTRACT:
Compositions comprising hexahydrophthalate (HHPA) metal salts may be useful as nucleating agents in polyolefins. Masterbatch compositions containing such salts and silica and/or hydrotalcite are particularly useful in reducing haze and improving properties of manufactured polyolefin articles or film. Such compositions may be dispersed effectively and efficiently into resin during manufacturing operations in the form of a masterbatch, thereby providing excellent polymer crystallization temperatures, improved polymer physical properties, improved dimensional stability, and improved transparency.

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