公开(公告)号：US20070098937A1

公开(公告)日：2007-05-03

申请号：US11640792

申请日：2006-12-18

申请人： Gregory DeKunder ,  Eric Maziers ,  Brian Cole ,  G. Meredith ,  Gerhard Guenther ,  Walter Jagmin

发明人： Gregory DeKunder ,  Eric Maziers ,  Brian Cole ,  G. Meredith ,  Gerhard Guenther ,  Walter Jagmin

IPC分类号： B32B27/08 ,  C08F110/02 ,  B32B1/08 ,  B29D22/00 ,  B29D23/00 ,  B29C47/00 ,  B29C47/06 ,  B29C49/00

CPC分类号： B32B27/08 ,  B29C47/0004 ,  B29C47/0019 ,  B29C47/0021 ,  B29C47/0023 ,  B29C47/0026 ,  B29C47/003 ,  B29C47/0054 ,  B29C47/043 ,  B29C47/065 ,  B29C49/0005 ,  B29C49/04 ,  B29C51/002 ,  B29K2023/06 ,  B29K2023/0625 ,  B29K2023/0633 ,  B29K2023/0641 ,  B29K2023/065 ,  B29K2023/12 ,  B29K2105/0008 ,  B29K2105/0026 ,  B29K2105/0032 ,  B29K2105/06 ,  B29K2105/256 ,  B29K2995/0022 ,  B29L2023/22 ,  B29L2031/5218 ,  B29L2031/7132 ,  B29L2031/7158 ,  B29L2031/7178 ,  B32B27/20 ,  B32B27/32 ,  B32B27/327 ,  B32B2307/406 ,  B32B2323/04 ,  B32B2439/60 ,  C08F110/02 ,  C08L23/04 ,  C08L23/06 ,  C08L23/0815 ,  C08L2203/10 ,  C08L2205/02 ,  C08L2314/06 ,  Y10T428/1334 ,  Y10T428/1352 ,  C08L2666/06 ,  C08F2500/17 ,  C08F2500/19 ,  C08F2500/12 ,  C08F2500/13

摘要： The present invention includes an end use article (i.e., an article of manufacture) and a process for making the same, wherein the end use article has a relatively high gloss and exhibits excellent processability over a wide range of processing conditions. The end use article can be formed with glossy polyethylene having an “a” parameter less than or equal to about 0.40, and the glossy polyethylene can be a Metallocene polyethylene. The end use article can have a 60° specular gloss of at least about 40%, or from about 40% to about 80%, or from about 60% to about 80%. The end use article may be pigmented or unpigmented.

公开(公告)号：US20060020063A1

公开(公告)日：2006-01-26

申请号：US10896713

申请日：2004-07-22

申请人： Gerhard Guenther ,  Steven Gray ,  Tim Coffy ,  G. Meredith

发明人： Gerhard Guenther ,  Steven Gray ,  Tim Coffy ,  G. Meredith

IPC分类号： C08K5/49

CPC分类号： C08J5/00 ,  C08K5/005 ,  C08K5/14 ,  C08L27/12

摘要： It has been discovered that the amount of fluoropolymer additive used in a polyethylene resin affects the quality of finish of an article made with free surface polyethylene resins using chromium, Ziegler-Natta or metallocene catalysts. Reducing the amount of fluoropolymer increases the matte nature of the polymer finish, whereas increasing the amount of fluoropolymer increases the gloss nature of the finish. Introducing a peroxide or air in an increasing amount increases the long chain branching (LCB) of the polymer. Introducing an antioxidant in an amount to balance the peroxide amount can improve the melt strength of the polymer, and the amount of antioxidant is balanced with the amount of peroxide and/or air. The resultant polymer density ranges between about 0.960 and 0.962 g/cm3 inclusive, where the molecular weight distribution (MWD) of the polymer is greater than 3 and less than 6.

摘要翻译： 已经发现，聚乙烯树脂中使用的含氟聚合物添加剂的量影响使用铬，齐格勒 - 纳塔或茂金属催化剂的用游离表面聚乙烯树脂制成的制品的表面光洁度。 减少含氟聚合物的量增加了聚合物涂饰的无光泽性质，而增加含氟聚合物的量增加了涂饰的光泽性质。 以增加的量引入过氧化物或空气增加聚合物的长链支化（LCB）。 引入抗氧化剂以达到平衡过氧化物量可以提高聚合物的熔体强度，并且抗氧化剂的量与过氧化物和/或空气的量平衡。 所得聚合物密度在约0.960至0.962g / cm 3之间，其中聚合物的分子量分布（MWD）大于3且小于6。