发明名称 |
metodo para melhorar a estabilidade de bolha de uma composição de polietileno apropriada para processo de extrusão de pelicula expandida |
摘要 |
The instant invention provides a method for improving the bubble stability of a polyethylene composition suitable for blown film extrusion process. The method for improving the bubble stability of a polyethylene composition suitable for blown film extrusion process comprises the steps of: (1) providing a polyethylene composition having a density in the range of 0.900 g/cm3 to 0.970 g/cm3 and an relaxation spectrum index (RSI) value in the range of 10 to 100; (2) oxygen tailoring said polyethylene composition; (3) thereby forming an oxygen tailored polyethylene composition, wherein the RSI value of the said oxygen tailored polyethylene composition increases from 10% to 300% of its initial value; (4) thereby improving the bubble stability of said polyethylene composition. |
申请公布号 |
BR112012017676(A2) |
申请公布日期 |
2016.04.05 |
申请号 |
BR20121117676 |
申请日期 |
2011.01.17 |
申请人 |
DOW GLOBAL TECHNOLOGIES LLC |
发明人 |
ANTHONY C. NEUBAUER;WILLIAM J. MICHIE JR. |
分类号 |
B29C47/00;B29C47/88;B29C55/28;C08F8/00;C08F8/06;C08F8/50;C08F10/02;C08F110/02;C08J5/18;C08L23/04 |
主分类号 |
B29C47/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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