Invention Grant
US08476392B2 Polymerization processes using metallocene catalysts, their polymer products and end uses
有权
使用茂金属催化剂，其聚合物产品和最终用途的聚合方法
- Patent Title: Polymerization processes using metallocene catalysts, their polymer products and end uses
- Patent Title (中): 使用茂金属催化剂，其聚合物产品和最终用途的聚合方法
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Application No.: US12910482Application Date: 2010-10-22
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Publication No.: US08476392B2Publication Date: 2013-07-02
- Inventor: Rainer Kolb , Agapios K. Agapiou , James M. Farley , Eric J. Markel , Bruce J. Savatsky , Christopher R. Davey , Richard B. Pannell
- Applicant: Rainer Kolb , Agapios K. Agapiou , James M. Farley , Eric J. Markel , Bruce J. Savatsky , Christopher R. Davey , Richard B. Pannell
- Applicant Address: US TX Houston
- Assignee: Univation Technologies, LLC
- Current Assignee: Univation Technologies, LLC
- Current Assignee Address: US TX Houston
- Agent Jennifer A. Schmidt; Leandro Arechederra, III; Kristina Leavitt
- Main IPC: C08F4/76
- IPC: C08F4/76 ; C08F4/64 ; C08F210/02
Abstract:
A process for the production of an ethylene alpha-olefin copolymer is disclosed, the process including polymerizing ethylene and at least one alpha-olefin by contacting the ethylene and the at least one alpha-olefin with a metallocene catalyst in at least one gas phase reactor at a reactor pressure of from 0.7 to 70 bar and a reactor temperature of from 20° C. to 150° C. to form an ethylene alpha-olefin copolymer. The resulting ethylene alpha-olefin copolymer may have a density D of 0.927 g/cc or less, a melt index (I2) of from 0.1 to 100 dg/min, a MWD of from 1.5 to 5.0. The resulting ethylene alpha-olefin copolymer may also have a peak melting temperature Tmax second melt satisfying the following relation: Tmax second melt>D*398−245.
Public/Granted literature
- US20110040041A1 Polymerization Processes Using Metallocene Catalysts, Their Polymer Products and End Uses Public/Granted day:2011-02-17
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