Invention Grant
- Patent Title: Polymers with low gel content and enhanced gas-fading
- Patent Title (中): 具有低凝胶含量和增强的气体褪色性的聚合物
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Application No.: US12604981Application Date: 2009-10-23
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Publication No.: US08188170B2Publication Date: 2012-05-29
- Inventor: Hayder Zahalka , Michael E. Gelbin , Maurice Power , Jonathan S. Hill
- Applicant: Hayder Zahalka , Michael E. Gelbin , Maurice Power , Jonathan S. Hill
- Applicant Address: US CT Middlebury
- Assignee: Chemtura Corporation
- Current Assignee: Chemtura Corporation
- Current Assignee Address: US CT Middlebury
- Agent Joseph Suhadolnik
- Main IPC: C08K5/34
- IPC: C08K5/34

Abstract:
A polymer stabilizing composition comprising a sterically hindered phenol and a phosphite that provides low gel content and enhanced resistance to gas-fading. The stabilizer composition is particular useful for stabilizing polyethylene homopolymers and copolymers, such as linear low density polyethylenes produced from metallocene catalyst. The sterically hindered phenol is selected from the group consisting of 1,3,5-tris-(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl)isocyanurate, 1,3,5-tris-(3,5-dicyclohexyl-4-hydroxybenzyl)isocyanurate, 1,3,5-tris-(3,5-di-tert-butyl-4-hydroxybenzyl)isocyanurate,1,3,5-tris(4-t-butyl-3-hydroxy-2,6-dimethylbenzyl)-1,3,5-Triazine-2,4,6-(1H,3H,5H)-trione, and 1,3,5-tris-(3,5-di-tert-butyl-4-hydroxybenzyl)-2,4,6-trimethylbenzene. The phosphite preferably is a liquid phosphite composition comprising two or more alkylated aryl phosphites.
Public/Granted literature
- US20100197837A1 POLYMERS WITH LOW GEL CONTENT AND ENHANCED GAS-FADING Public/Granted day:2010-08-05
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