US 7,579,422 B2
	Propylene random copolymer and process for the production thereof
Pirjo Jaaskelainen, Porvoo (Finland); Norbert Hafner, Linz (Austria); Paivi Pitkanen, Halkia (Finland); Markus Gahleitner, Neuhofen (Austria); Olli Tuominen, Helsinki (Finland); and Wilfried Toltsch, Marchtrenk (Austria)
Assigned to Borealis Technology Oy, Porvoo (Finland)
Filed on Aug. 09, 2007, as Appl. No. 11/836,644.
Application 11/836644 is a division of application No. 10/482271, granted, now 7,470,756, previously published as PCT/EP02/07081, filed on Jun. 26, 2002.
Claims priority of application No. 01115471 (EP), filed on Jun. 27, 2001.
Prior Publication US 2008/0027197 A1, Jan. 31, 2008
This patent is subject to a terminal disclaimer.
Int. Cl. C08F 297/08 (2006.01); C08F 210/06 (2006.01)

U.S. Cl. 526—348  [526/65; 526/348.1; 525/53; 525/240]

10 Claims

1. A propylene random copolymer prepared by copolymerisation of propylene with ethylene, wherein the copolymer has an ethylene content to 3 wt % or more and an elution interval determined according to the TREF method of 50° C. or more; and wherein the amount of components of said copolymer eluting at temperatures of up to 90° C. determined according to the TREF method is below 50 wt % of the whole amount of copolymer.