Back to results
US 9,751,962 B2Granted
Low emission propylene homopolymer with high melt flow
AssigneeBorealis AG
InventorsJingbo Wang, Johanna Lilja, Thomas Horill, Markus Gahleitner, Peter Denifl, Timo Leinonen
Life of this patent
Estimating the term…
Abstract
Propylene homopolymer with reduced emission value and high melt flow rate.
Claims17
A propylene homopolymer having
- (a) a melt flow rate MFR2 (230° C./2.16 kg) measured according to ISO 1133 in the range of 75.0 to 500 g/10 min;
- and
- (b) a pentad isotacticity (mmmm) of more than 90.0% determined by 13C-NMR spectroscopy
- wherein further
- (c) the propylene homopolymer fulfills inequation (I)
- VOC≦(MFR×0.08)+201.0
- wherein
- VOC is the amount of volatile organic compounds (VOC) [in ppm] measured according to VDA 278:2002 of the propylene homopolymer;
- MFR is the melt flow rate MFR2 (230° C./2.16 kg) measured according to ISO 1133 of the propylene homopolymer, and
- (d) the propylene homopolymer has a melting temperature Tm of equal to or more than 160° C.
7 more elements
Dependencies are inferred from the claim text.