Ethylened polymer and molded object obtained therefrom

Details Ethylened polymer and molded object obtained therefrom Ethylened polymer and molded object obtained therefrom

2007-04-24

2007-04-24

Choi, Ling-Sui (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S348000, C526S348200, C526S348500, C526S348300, C526S352200, C526S160000, C526S170000, C526S142000, C526S141000, C526S143000, C526S147000, C528S396000, C502S129000, C502S125000, C502S123000, C502S124000

Reexamination Certificate

active

10539038

ABSTRACT:
An ethylene-based polymer which is an ethylene/C4 to C10 α-olefin copolymer and satisfies the following requirements [k1] to [k3]: [k1] melt flow rate (MFR) under a loading of 2.16 kg at 190° C. is in the range of 1.0 to 50 g/10 minutes; [k2] LNR defined as a scale of neck-in upon film molding is in the range of 0.6 to 1.4; and [k3] take-up speed at break [DS (m/min)] at 160° C. and melt flow rate (MFR) satisfy the following relationship (Eq-1): 12×MFR0.577≦DS≦165×MFR0.577(Eq-1), and a thermoplastic resin composition containing the ethylene-based polymer, provide a molded product, preferably a film, excellent in moldability and mechanical strength.The ethylene-based polymer can be efficiently obtained by polymerization in the presence of an olefin polymerization catalyst formed from a solid carrier, (A) a solid transition metal catalyst component obtained by contacting (a) a compound of a transition metal of the group 4 in the periodic table, containing at least one ligand having a cyclopentadienyl skeleton, (b) an organoaluminum oxy compound, (c) a multifunctional organic halide, and if necessary (d) an organoaluminum compound, and if necessary (B) organoaluminum compound.

REFERENCES:
patent: 5798427 (1998-08-01), Foster et al.
patent: 5916988 (1999-06-01), Tsutsui et al.
patent: 6284699 (2001-09-01), Ohgane et al.
patent: 6528596 (2003-03-01), Takaoki et al.
patent: 6586356 (2003-07-01), Takaoki et al.
patent: 6870015 (2005-03-01), Oshima et al.
patent: 6914108 (2005-07-01), Takaoki et al.
patent: 7022782 (2006-04-01), Ogane
patent: 2004/0210004 (2004-10-01), Takahashi et al.
patent: 0 452 920 (1991-10-01), None
patent: 2-276807 (1990-11-01), None
patent: 4-213309 (1992-08-01), None
patent: 6-65443 (1994-03-01), None
patent: 6-172594 (1994-06-01), None
patent: 8/34819 (1996-02-01), None
patent: 8/311260 (1996-11-01), None
patent: 8-319313 (1996-12-01), None
patent: 9-249707 (1997-09-01), None
patent: 11-166083 (1999-06-01), None
patent: WO-93/08221 (1993-04-01), None

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