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1. 发明授权

US08247497B2 Polymer molding compositions 有权
标题翻译：聚合物模塑组合物
公开(公告)号：US08247497B2
公开(公告)日：2012-08-21
申请号：US11578983
申请日：2005-05-05
申请人： Debra R. Wilson , William J. Michie, Jr. , Spyro P. Petsalis
发明人： Debra R. Wilson , William J. Michie, Jr. , Spyro P. Petsalis
IPC分类号： C08L23/00 , C08L23/04 , C08K5/00
CPC分类号： C08L23/06 , C08L23/0815 , C08L2205/02 , C08L2205/025 , C08L2666/06
摘要： The invention relates to formulated compositions which can be easily formed into bottle caps, without the need for a liner, while still maintaining pressure requirements, such as for carbonated beverages. The compositions may include an ethylene polymer having a density in the range of from about 0.947 to 0.962 g/cm3, a melt index of from about 1 to about 10 g/10 min., and another ethylene polymer having a density in the range of from about 0.912 to 0.932 g/cm3, a melt index of from about 0.25 to about 6 g/10 min., wherein the two ethylene polymers have a density difference of equal to or greater than 0.03 g/cm3. In other cases, the composition may include a single component resin with a density in the 0.935-0.955 g/cm3 range with a melt index in the range of 0.3-1.2 g/10 minutes, and wherein the resin comprises a polyethylene polymer.
摘要翻译：本发明涉及配制的组合物，其可以容易地形成瓶盖，而不需要衬垫，同时仍然保持压力要求，例如用于碳酸饮料。组合物可以包括密度在约0.947至0.962g / cm 3范围内的乙烯聚合物，熔体指数为约1至约10g / 10分钟，而另一种乙烯聚合物的密度范围为约0.912至0.932g / cm 3，熔体指数为约0.25至约6g / 10min，其中两种乙烯聚合物具有等于或大于0.03g / cm 3的密度差。在其它情况下，组合物可以包括密度在0.935-0.955g / cm 3范围内的单组分树脂，熔体指数在0.3-1.2g / 10分钟的范围内，并且其中树脂包含聚乙烯聚合物。

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