Method of compounding a multimodal polyethylene composition

Details Method of compounding a multimodal polyethylene composition Method of compounding a multimodal polyethylene composition

2005-05-31

2005-05-31

Cheung, William K. (Department: 1713)

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...

C526S352000

Reexamination Certificate

active

06900266

ABSTRACT:
Method of compounding a multimodal polyethylene composition in a compounding device, wherein a) the total residence time of the polyethylene composition in the compounding device is at least 1.5 minutes, b) the total drive specific energy (SEC) applied on the polyethylene composition is from 0.270 to 0.460 kWh/kg, c) optionally, a specific cooling energy (SCC) of at most 0.200 kWh/kg is applied on the polyethylene composition, d) the total specific energy, which is the difference between the total drive specific energy SEC and any specific cooling energy SCC, applied on the polyethylene composition is from 0.220 to 0.330 kWh/kg.

REFERENCES:
patent: 3381060 (1968-04-01), Peacock et al.
patent: 5336573 (1994-08-01), Zuckerbrod et al.
patent: 0 645 232 (1995-03-01), None
patent: 0 713 889 (1996-05-01), None
patent: WO 00/01473 (2000-01-01), None

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