Title:
THERMOPLASTIC POLYOLEFIN IN-REACTOR BLENDS AND MOLDED ARTICLES THEREFROM
Document Type and Number:
WIPO Patent Application WO/2010/077881
Kind Code:
A3
Abstract:
This invention relates to a molded article comprising an in-reactor polymer blend comprising: (a) a first propylene polymer comprising 90 to 100 wt% propylene and from 0 to less than 10 wt% comonomer, said first propylene component having a Tm of 135°C or more; and (b) a second propylene polymer comprising from 30 to 90 wt% propylene and 70 to 10 wt% comonomer, said second propylene polymer having an Mw of 30,000 g/mol or more, and said second propylene-containing polymer having a crystallinity different by at least 5% from the first polymer, wherein the polymer blend has: (a) a Tm of at least 135°C, (b) a melt flow rate of at least 70 dg/min, (c) a tensile strength of at least 8 MPa, (d) an elongation at break of at least 200%, (e) a tensile strength at break of 10 MPa or more, and (f) a GME 60280 scratch resistance of less than 1.2 DL at a scratching load of 5 Newtons.
Inventors:
JIANG PEIJUN (US)
DEKMEZIAN ARMENAG (US)
FLENDRIG JOSEPH GUSTAAF MARIE (BE)
DEKMEZIAN ARMENAG (US)
FLENDRIG JOSEPH GUSTAAF MARIE (BE)
Application Number:
PCT/US2009/068104
Publication Date:
September 10, 2010
Filing Date:
December 15, 2009
Export Citation:
Assignee:
EXXONMOBIL CHEM PATENTS INC (US)
JIANG PEIJUN (US)
DEKMEZIAN ARMENAG (US)
FLENDRIG JOSEPH GUSTAAF MARIE (BE)
JIANG PEIJUN (US)
DEKMEZIAN ARMENAG (US)
FLENDRIG JOSEPH GUSTAAF MARIE (BE)
International Classes:
C08J5/00; C08L23/12
Domestic Patent References:
| WO2004060994A1 | 2004-07-22 |
Foreign References:
| US6635715B1 | 2003-10-21 | |||
| EP0206515A1 | 1986-12-30 | |||
| KR960003817B1 | 1996-03-22 |
Attorney, Agent or Firm:
BELL, Catherine, L. et al. (Law TechnologyP.O. Box 214, Baytown TX, US)
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