Invention Grant
- Patent Title: Propylene polymers
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Application No.: US14437868Application Date: 2013-11-25
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Publication No.: US10100183B2Publication Date: 2018-10-16
- Inventor: Jeanne M. MacDonald , Antonios Doufas , Jerome Sarrazin , William M. Ferry , Charles J. Ruff , Rahul R. Kulkarni , Derek W. Thurman , Cynthia A. Mitchell
- Applicant: ExxonMobil Chemical Patents Inc.
- Applicant Address: US TX Baytown
- Assignee: ExxonMobil Chemical Patents Inc.
- Current Assignee: ExxonMobil Chemical Patents Inc.
- Current Assignee Address: US TX Baytown
- Agent Kevin M. Faulkner
- Priority: EP13160927 20130325
- International Application: PCT/US2013/071577 WO 20131125
- International Announcement: WO2014/088857 WO 20140612
- Main IPC: C08L23/12
- IPC: C08L23/12 ; C08J5/18 ; D01F6/06

Abstract:
This invention relates in one aspect to propylene polymers comprising propylene, said polymers having a melt flow rate (MFR, ASTM 1238, 230° C., 2.16 kg) of 10 dg/min to 25 dg/min; a Dimensionless Stress Ratio/Loss Tangent Index R2 at 190° C. from 1.5 to 28; an average meso run length determined by 13C NMR of at least 70 or higher; and an MFR MFR Ratio of at least 1.0 and optionally, a Loss Tangent, tan δ, at an angular frequency of 0.1 rad/s at 190° C. from 14 to 100. The inventive propylene polymer compositions are useful in in molded articles and non-woven fibers and fabrics.
Public/Granted literature
- US20150274907A1 Propylene Polymers Public/Granted day:2015-10-01
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