Invention Grant
US08093335B2 Thermoplastic polyolefin in-reactor blends and molded articles therefrom
有权
热塑性聚烯烃反应器内共混物及其模塑制品
- Patent Title: Thermoplastic polyolefin in-reactor blends and molded articles therefrom
- Patent Title (中): 热塑性聚烯烃反应器内共混物及其模塑制品
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Application No.: US12638843Application Date: 2009-12-15
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Publication No.: US08093335B2Publication Date: 2012-01-10
- Inventor: Peijun Jiang , Armenag H. Dekmezian , Joseph Gustaaf M. Flendrig
- Applicant: Peijun Jiang , Armenag H. Dekmezian , Joseph Gustaaf M. Flendrig
- Applicant Address: US TX Houston
- Assignee: ExxonMobil Chemical Patents Inc.
- Current Assignee: ExxonMobil Chemical Patents Inc.
- Current Assignee Address: US TX Houston
- Agent Darryl M. Tyus
- Main IPC: C08F8/00
- IPC: C08F8/00 ; C08L23/00 ; C08L23/04

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.
Public/Granted literature
- US20100152360A1 Thermoplastic Polyolefin In-Reactor Blends And Molded Articles Therefrom Public/Granted day:2010-06-17
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