公开(公告)号：US20060148920A1

公开(公告)日：2006-07-06

申请号：US11027442

申请日：2004-12-30

申请人： Michael Musgrave ,  John Ashbaugh ,  Lu Kelly

发明人： Michael Musgrave ,  John Ashbaugh ,  Lu Kelly

IPC分类号： B29C44/34

CPC分类号： C08J9/0023 ,  C08J2323/12 ,  C08K5/0083 ,  C08L23/10 ,  C08L2203/14 ,  C08L23/12

摘要： Alicyclic carboxylates, such as alicyclic norbonane sodium dicarboxylate, may be used in relatively small amounts as crystallization nucleating agents for foamed polypropylene. The alicyclic carboxylates give improved cell structures at lower proportions than conventional crystallization nucleating agents. The use of alicyclic carboxylate crystallization nucleating agents together with conventional nucleating agents may help give lower density polypropylene foams across a broader melt temperature range.

摘要翻译： 作为泡沫聚丙烯的结晶成核剂，可以使用较少量的脂环族羧酸盐，例如脂肪族二羰基二羧酸钠二羧酸钠。 脂环羧酸盐以比常规结晶成核剂更低的比例提供改善的细胞结构。 使用脂环羧酸酯结晶成核剂与常规成核剂一起可能有助于在更宽的熔融温度范围内产生较低密度的聚丙烯泡沫。

公开(公告)号：US20060189749A1

公开(公告)日：2006-08-24

申请号：US11295378

申请日：2005-12-06

申请人： Mike Musgrave ,  Lu Kelly ,  Mark Murphy

发明人： Mike Musgrave ,  Lu Kelly ,  Mark Murphy

IPC分类号： A61K9/16

CPC分类号： C08F210/16 ,  C08F4/65912 ,  C08F4/65927 ,  C08F10/00 ,  C08F210/06 ,  C08L23/12 ,  C08L23/142 ,  Y10S526/943 ,  C08F4/65916 ,  C08L2666/06 ,  C08F2500/12 ,  C08F2500/21 ,  C08F2500/26

摘要： A composition that may be useful for thermoforming and blow molding applications comprises a metallocene catalyzed propylene-ethylene random copolymer having an ethylene content of from about 0.1 to about 1.5 weight percent based on the copolymer, and exhibits a flexural modulus of at least about 1,100 MPa, a haze of less than about 40 percent, a melt flow of from about 1.0 dg/min to about 3.0 dg/min, and a xylene solubles content from about 0.2 weight percent to about 1.0 weight percent based on the copolymer. A process for preparing the copolymer and articles prepared therefrom are also disclosed. The composition's properties may make it particularly desirable for applications such as bottles, syringes and containers such as those used for food and medical purposes.

公开(公告)号：US20070202285A1

公开(公告)日：2007-08-30

申请号：US11012499

申请日：2004-12-15

申请人： Douglas Burmaster ,  Owen Hodges ,  J. Lumus ,  Lu Kelly ,  Mark Murphy

发明人： Douglas Burmaster ,  Owen Hodges ,  J. Lumus ,  Lu Kelly ,  Mark Murphy

IPC分类号： B32B27/08

CPC分类号： C08F210/06 ,  C08F210/16 ,  C08J5/00 ,  C08J2323/16 ,  C08L23/142 ,  Y10T428/1352 ,  Y10T428/1397 ,  C08F2500/12 ,  C08F2500/15 ,  C08F2500/26

摘要： Molded articles are prepared from propylene-ethylene copolymers and exhibiting improved clarity and strength properties. Articles prepared include bottles and other thin-walled articles. The articles are prepared using an isotactic propylene-ethylene random copolymer resin having an ethylene content of from about 0.5 to about 3 percent by total weight of copolymer, with a xylene solubles content of less than about 1.5 percent. The injection molded article may exhibit less than about 20 percent haze, as determined by ASTM D1003, at a thickness of about 0.08 inch (2.03 mm). Articles may also be prepared from similar copolymers having an ethylene content greater than about 3 percent by total weight of copolymer, with a xylene solubles content of less than about 4 percent by total weight of copolymer. These articles may exhibit less than about 13 percent haze, as determined by ASTM D1003, at a thickness of about 0.08 inch (2.03 mm).

摘要翻译： 模制品由丙烯 - 乙烯共聚物制备，并具有改进的透明度和强度性能。 制作的文章包括瓶子和其他薄壁物品。 制品使用全同立构丙烯 - 乙烯无规共聚物树脂制备，其乙烯含量为共聚物总重量的约0.5％至约3％，二甲苯可溶物含量小于约1.5％。 注射成型制品可以表现出小于约20％的雾度，如ASTM D1003所测定，厚度约为0.08英寸（2.03mm）。 制品也可以由共聚物的总重量大于约3重量％的相似共聚物制备，二甲苯可溶物含量小于共聚物总重量的约4重量％。 根据ASTM D1003测定，这些制品的厚度可以低于约13％，厚度约为0.08英寸（2.03mm）。

公开(公告)号：US20050154096A1

公开(公告)日：2005-07-14

申请号：US10973646

申请日：2004-10-26

申请人： Lu Kelly ,  Joseph Schardl ,  Mark Miller ,  Vincent Barre ,  James Lumus

发明人： Lu Kelly ,  Joseph Schardl ,  Mark Miller ,  Vincent Barre ,  James Lumus

IPC分类号： C08J3/20 ,  B29C45/00 ,  B29C47/00 ,  B29C67/24 ,  C08L23/04 ,  C08L23/08 ,  C08L23/12 ,  C08L91/00 ,  C08J3/00

CPC分类号： C08L23/12 ,  B29C45/0001 ,  B29C47/0004 ,  B29C47/0021 ,  B29C47/0023 ,  B29C67/24 ,  B29K2023/12 ,  C08L23/0815 ,  C08L91/00 ,  C08L2205/03 ,  C08L2207/12 ,  C08L2666/06 ,  C08L2666/02

摘要： Syndiotactic polypropylene blends having a unique set of mechanical properties may be prepared by blending syndiotactic polypropylene with a high molecular weight mineral oil, an ultra low density polyethylene, or both. The syndiotactic polypropylene blends of the present invention have been found to have reduced flexural modulus, reduced haze, improved impact strength and shorter injection molding cycle times. It has been determined that the addition of about 5 to about 10 percent high molecular weight mineral oil to a syndiotactic polypropylene can decrease flexural modulus values by about 25 to about 30 percent. Moreover, the addition of up to about 10 percent mineral oil to the syndiotactic polypropylene material does not show signs of bleeding or impair clarity, in fact, percent haze values are slightly improved with the addition of mineral oil. Additionally, injection molding cycle time optimization shows an improvement of about 12 seconds in overall cycle time utilizing a syndiotactic polypropylene blend with 5% mineral oil in comparison to a syndiotactic polypropylene without mineral oil. The syndiotactic polypropylene blends according to the present invention may be further processed according to accepted practices to make cast films, blown films, injection molded parts, blow molded containers, and other articles using basic plastics fabrication techniques as known in the art.

公开(公告)号：US20060128842A1

公开(公告)日：2006-06-15

申请号：US11012315

申请日：2004-12-15

申请人： Douglas Burmaster ,  Owen Hodges ,  J. Lumus ,  Lu Kelly ,  Mark Murphy

发明人： Douglas Burmaster ,  Owen Hodges ,  J. Lumus ,  Lu Kelly ,  Mark Murphy

IPC分类号： C08K5/09

CPC分类号： C08K5/0008 ,  C08K5/0083 ,  Y10S526/943 ,  C08L23/10

摘要： A polypropylene composition comprises an isotactic polypropylene homopolymer resin that is suitable to form an injected molded article exhibiting less than about 60% haze, as determined by ASTM D1003, at a thickness of 0.05 inch without clarity-enhancing agents. The polypropylene composition has particular application to injection molded articles and may have a melt flow rate of from about 0.1 g/10 min to about 150 g/10 min as determined by ASTM D-1238, Procedure B. The resin may be prepared using a metallocene catalyst, and the composition may include clarity-enhancing agents for even greater clarity improvements.

摘要翻译： 聚丙烯组合物包含全同立构聚丙烯均聚物树脂，其适于形成注射成型制品，其通过ASTM D1003测定显示小于约60％的雾度，厚度为0.05英寸，而没有增透剂。 聚丙烯组合物特别适用于注射成型制品，并且可以具有通过ASTM D-1238程序B测定的约0.1g / 10min至约150g / 10min的熔体流动速率。树脂可以使用 茂金属催化剂，并且组合物可以包括透明度增强剂，用于更加明显的改进。