Ethylene-based polymer resin

Details Ethylene-based polymer resin Ethylene-based polymer resin

2005-03-15

2005-03-15

Teskin, Fred (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S348200, C526S348400, C526S348500, C526S348600

Reexamination Certificate

active

06867277

ABSTRACT:
An ethylene-based polymer resin which is obtained by copolymerizing ethylene with an α-olefin having 5 to 20 carbon atoms, and has a melt flow rate (MFR) measured at 190° C. under a load of 21.18 N according to JIS K7210-1995, of not less than 0.01 g/10 min. and less than 1 g/10 min., wherein the melt flow rate and a melt tension(MT) at 190° C. (unit: cN) of the resin satisfy a relation of the following expression (1) and an intrinsic viscosity [η] (unit: dL/g) and the melt flow rate of the resin satisfy a relation of the following expression (2):in-line-formulae description="In-line Formulae" end="lead"?2×MFR−0.59<MT<3.6×MFR−0.66  (1)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?1.02×MFR−0.094<[η]<1.50×MFR−0.156  (2).in-line-formulae description="In-line Formulae" end="tail"?

REFERENCES:
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patent: 5451106 (1995-09-01), Nguyen et al.
patent: 5459217 (1995-10-01), Todo et al.
patent: 5840815 (1998-11-01), Tsutsui et al.
patent: 20020198341 (2002-12-01), Takahashi
patent: 4-213309 (1992-08-01), None
patent: 6-9724 (1994-01-01), None

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