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...
Reexamination Certificate
2008-05-27
2008-05-27
Cain, Edward J. (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...
C524S445000
Reexamination Certificate
active
07378467
ABSTRACT:
A plastics film is disclosed as including (a) polyethylene (PE) or polypropylene (PP) and (b) a zeolite as an anti-blocking agent, in which secondary particles of the zeolite are formed of aggregation of primary particles of the zeolite and a majority of the secondary particles are of a diameter of less than substantially 0.4 micron. The primary particles are also of a diameter of less than 0.4 micron. A masterbatch for the production of such a plastics film is also disclosed as including (a) polyethylene or polypropylene and (b) a zeolite as an anti-blocking agent, in which secondary particles of the zeolite are formed of aggregation of primary particles of the zeolite and a majority of the secondary particles are of a diameter of less than substantially 0.4 micron, and the primary particles are of a diameter of less than 0.4 micron.
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Buchanan & Ingersoll & Rooney PC
Cain Edward J.
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