公开(公告)号：US5773155A

公开(公告)日：1998-06-30

申请号：US485534

申请日：1995-06-07

申请人： Lawrence T. Kale ,  Pradeep Jain ,  David C. Kelley ,  Deepak R. Parikh ,  Sharon L. Baker ,  Osborne K. McKinney

发明人： Lawrence T. Kale ,  Pradeep Jain ,  David C. Kelley ,  Deepak R. Parikh ,  Sharon L. Baker ,  Osborne K. McKinney

IPC分类号： B29C47/00 ,  B29C47/02 ,  B32B27/08 ,  B32B27/32 ,  B32B37/15 ,  C08F4/659 ,  C08F4/6592 ,  C08F10/00 ,  C08F10/02 ,  C08F110/00 ,  C08F110/02 ,  C08F210/16 ,  C08G83/00 ,  C08J5/18 ,  C08L23/02 ,  C08L23/04 ,  C08L23/06 ,  C08L23/08 ,  C08L23/16 ,  C08J5/00

CPC分类号： C08J5/18 ,  B29C47/0004 ,  B29C47/02 ,  B32B27/08 ,  B32B27/32 ,  B32B27/322 ,  B32B37/153 ,  C08F10/00 ,  C08F10/02 ,  C08F210/16 ,  C08G83/003 ,  C08L23/04 ,  C08L23/0815 ,  C08L23/16 ,  B29C47/00 ,  B29C47/0016 ,  B29K2023/06 ,  B29K2023/0641 ,  B29K2023/083 ,  B29K2995/0022 ,  C08F110/00 ,  C08F110/02 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/6592 ,  C08J2303/08 ,  C08J2323/04 ,  C08J2323/08 ,  C08L2205/02 ,  C08L23/02 ,  C08L23/06 ,  C08L2314/06 ,  Y10T428/31913 ,  Y10T428/31935 ,  Y10T428/31938

摘要： An ethylene polymer extrusion composition having high draw down and substantially reduced neck-in, a process for making such a composition and a process of using such a composition to prepare extrusion coatings, extrusion profiles and extrusion cast films are disclosed. The ethylene polymer extrusion composition is made of 75-95 weight percent of at least one ethylene .alpha.-olefin interpolymer and 5-25 weight percent of at least one high pressure ethylene polymer characterized as having high melt strength and a broad, bimodal molecular weight distribution. In profiles, coatings or films, the composition can be used as sealant, adhesive or abuse resistance layers.

公开(公告)号：US5773106A

公开(公告)日：1998-06-30

申请号：US487819

申请日：1995-06-07

申请人： Jacquelyn A. deGroot ,  Pradeep Jain ,  Lonnie G. Hazlitt ,  Seema V. Karande ,  Laura K. Mergenhagen ,  Dan G. Moldovan ,  Kenneth B. Stewart ,  Nicole F. Whiteman

发明人： Jacquelyn A. deGroot ,  Pradeep Jain ,  Lonnie G. Hazlitt ,  Seema V. Karande ,  Laura K. Mergenhagen ,  Dan G. Moldovan ,  Kenneth B. Stewart ,  Nicole F. Whiteman

IPC分类号： B65D81/34 ,  B29C47/00 ,  B29K23/00 ,  B29L9/00 ,  B32B27/32 ,  B65D1/00 ,  B65D65/40 ,  C08F110/02 ,  C08F210/08 ,  C08F210/16 ,  C08J5/18 ,  C08L23/04 ,  C08L23/06 ,  C08L23/08 ,  C08L23/16 ,  C09J123/08 ,  B29D31/00

CPC分类号： C08L23/06 ,  B29C47/0004 ,  B29C47/0021 ,  B29C47/0026 ,  B32B27/32 ,  B32B27/322 ,  C08J5/18 ,  C08L23/0815 ,  C09J123/0815 ,  C08F110/02 ,  C08F210/16 ,  C08J2323/04 ,  C08J2323/08 ,  C08L2205/02 ,  C08L2314/06 ,  Y10T428/1334 ,  Y10T428/1352 ,  Y10T428/1393 ,  Y10T428/1397 ,  Y10T428/24992 ,  Y10T428/2826 ,  Y10T428/31913

摘要： The subject invention provides a polymer mixture having high heat resistivity, low hexane extractive and controllably lower or higher modulus. The mixture is comprised of at least one first substantially linear ethylene polymer, Component (A), and at least one second ethylene polymer which is a homogeneously branched polymer, heterogeneously branched linear polymer or a non-short chain branched linear polymer. When fabricated into film, the mixture is characterized by a heat seal initiation temperature which is substantially lower than its Vicat softening point as well as a high ultimate hot tack strength. When fabricated as a molded article, the mixture is characterized by high microwave warp distortion while maintaining a lower modulus. The polymer mixture is particularly well-suited for use in multilayer film structures as a sealant layer for such applications as cook-in packages, hot-fill packages, and barrier shrink films. In molding applications, the mixture is well-suited as freezer-to-microwave food storage containers and lids which maintain good flexibility at low temperature to allow easy openability of such containers.

摘要翻译： 本发明提供了具有高耐热性，低己烷萃取和可控地更低或更高模量的聚合物混合物。 该混合物由至少一种第一基本上线性的乙烯聚合物，组分（A）和至少一种第二乙烯聚合物组成，其是均匀支化的聚合物，非均匀支化的线性聚合物或非短链支化的线型聚合物。 当制成膜时，混合物的特征在于热封起始温度明显低于其维卡软化点以及高极限热粘性强度。 当制造成模制品时，混合物的特征在于高的微波翘曲变形，同时保持较低的模量。 聚合物混合物特别适合用于多层膜结构，作为诸如煮熟包装，热填充包装和阻挡收缩膜之类的应用的密封剂层。 在成型应用中，该混合物非常适合作为冷冻至微波食品储存容器和盖子，其在低温下保持良好的柔韧性，以允许这种容器容易打开。