| US 7,576,166 B2 | ||
| Process for the production of linear low-density polyethylene composition | ||
| Jari Äärilä, Porvoo (Finland); Irene Helland, Porsgrunn (Norway); Ole Jan Myhre, Porsgrunn (Norway); Jorunn Nilsen, Porsgrunn (Norway); and Markku Vahteri, Porvoo (Finland) | ||
| Assigned to Borealis Technology Oy, Porvoo (Finland) | ||
| Appl. No. 10/519,326 PCT Filed Jun. 19, 2003, PCT No. PCT/FI03/00500 § 371(c)(1), (2), (4) Date Jul. 14, 2005, PCT Pub. No. WO04/000902, PCT Pub. Date Dec. 31, 2003. |
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| Claims priority of application No. 02396098 (EP), filed on Jun. 20, 2002. | ||
| Prior Publication US 2006/0167192 A1, Jul. 27, 2006 | ||
| Int. Cl. C08L 23/04 (2006.01); C08F 297/08 (2006.01); C08J 5/18 (2006.01) | ||
| U.S. Cl. 526—348.1 [526/65; 526/348; 525/53; 525/240] | 4 Claims |
| 1. A film made of linear low-density polyethylene, which polyethylene comprises
(i) a low molecular weight component with a melt flow rate MFR2 of 100 to 400 g/10 min and a density of 945 to 953 kg/m3, and
(ii) a high molecular weight component having a higher molecular weight, a lower melt flow rate and a lower density than the
low molecular weight component (i), so that the polymer composition comprises from 41 to 48% by weight of the low molecular
weight component (i), and from 59 to 52% by weight of the high molecular weight component (ii), and the composition has a
melt flow rate MFR2 in the range 0.4 to 1.0 g/10 min and a density of 918 to 925 kg/m3, wherein said film has no gels having a size greater than 0.4 mm.
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