公开(公告)号：US20070054997A1

公开(公告)日：2007-03-08

申请号：US10574729

申请日：2004-10-07

申请人： Peter Pierini ,  Shaun Pirtle

发明人： Peter Pierini ,  Shaun Pirtle

IPC分类号： C08K5/15

CPC分类号： C08J5/18 ,  C08F110/06 ,  C08J2323/10 ,  C08K5/0083 ,  C08K5/51 ,  C08L23/10 ,  Y10T428/31797 ,  Y10T428/31913 ,  Y10T428/3192 ,  Y10T428/31935 ,  Y10T428/31938 ,  C08F2500/12 ,  C08F2500/03 ,  C08F2500/15 ,  C08F2500/26

摘要： The invention is directed to a polypropylene resin, which is suitable for manufacturing an air quenched blown film. The resin has a melt flow rate of greater than 5 g/10 min, less than 2% xylene solubles, a pentad isotacticity of greater than 95%, an isotactic pentad/triad ratio of greater than 95%, a crystallinity of at least 65%, and a crystallization temperature of at least 127° The polypropylene resin contains from 500 ppm to 2500 ppm of a nucleator/clarifier additive. A quenched blown film made from resin exhibits a crystallization onset temperature of at least 116° C. and a crystallization half-life time of less 4.1 seconds or less when tested using fast DSC analysis with a scan rate of 200° C./minute.

摘要翻译： 本发明涉及一种适用于制造空气淬火吹塑薄膜的聚丙烯树脂。 该树脂的熔体流动速率大于5g / 10min，二甲苯可溶物低于2％，五单体全同立构规整度大于95％，全同立构五单元组/三单元组比大于95％，结晶度至少为65 ％，结晶温度至少为127°聚丙烯树脂含有500ppm至2500ppm的成核剂/澄清剂添加剂。 使用快速DSC分析以200℃/分钟的扫描速率进行测试时，由树脂制成的骤冷吹塑薄膜的结晶起始温度至少为116℃，结晶半衰期为4.1秒以下。

公开(公告)号：US20070082191A1

公开(公告)日：2007-04-12

申请号：US10579429

申请日：2004-11-29

申请人： Wenbin Liang ,  David Ramsey ,  Staci DeKunder ,  Kalyan Sehanobish ,  Jesus Nieto ,  John Presa ,  Shaun Pirtle

发明人： Wenbin Liang ,  David Ramsey ,  Staci DeKunder ,  Kalyan Sehanobish ,  Jesus Nieto ,  John Presa ,  Shaun Pirtle

IPC分类号： B32B27/08 ,  B32B27/32

CPC分类号： B32B7/02 ,  B32B27/08 ,  B32B27/32 ,  B32B2323/04 ,  B32B2323/10 ,  B32B2553/00 ,  C08J5/18 ,  C08J2323/02 ,  Y10T428/26 ,  Y10T428/264 ,  Y10T428/265 ,  Y10T428/31909 ,  Y10T428/31938

摘要： Stretch films which exhibit good puncture and impact resistance while also exhibiting resistance to defect propagation are desired. The films of the present invention have an ultimate stretch of at least 200 percent, a dart impact strength of at least about 700 gms/mil and a catastrophic failure stretch of at least 95 percent of the elongation to break value (CF of 5 or less). The films preferably comprise at least 3 layers and preferably comprise at least 50 percent by weight of polyethylene polymers.

摘要翻译： 期望具有良好的穿刺和抗冲击性，同时具有抗缺陷传播性能的拉伸膜。 本发明的薄膜具有至少200％的极限拉伸强度，至少约700gms / mil的飞镖冲击强度和破裂伸长率的至少95％的灾难性破坏拉伸（CF为5或更小） ）。 膜优选包含至少3层，优选包含至少50重量％的聚乙烯聚合物。

公开(公告)号：US20120219814A1

公开(公告)日：2012-08-30

申请号：US13372773

申请日：2012-02-14

申请人： Eric Vignola ,  Daniel Purpura ,  Paul Tas ,  Jamie Marler ,  Shaun Pirtle

发明人： Eric Vignola ,  Daniel Purpura ,  Paul Tas ,  Jamie Marler ,  Shaun Pirtle

IPC分类号： B32B27/32 ,  B29C39/00 ,  B32B38/00 ,  C08K3/22 ,  B32B37/14 ,  C08L23/08 ,  C08L31/04 ,  C08L9/00 ,  B29C47/00 ,  C08L23/06

CPC分类号： C08L23/04 ,  B32B27/08 ,  B32B27/32 ,  B32B2264/0235 ,  C08L23/00 ,  C08L23/06 ,  C08L23/0853 ,  C08L23/10 ,  C08L25/04 ,  C08L31/04 ,  C08L35/06 ,  C08L2023/42 ,  C08L2205/03 ,  Y10T428/31938

摘要： Methods of improving polyethylene stretch film that include providing interpolymer resin particles, forming a polyethylene blend composition by blending from about 0.1 to about 10 percent by weight based on the weight of the blend composition of interpolymer resin particles into one or more polyethylene resins; and forming a film from the polyethylene blend composition. The interpolymer resin particles contain a styrenic polymer intercalated within a first polyolefin, where the first polyolefin is present at from about 20% to about 80% by weight based on the weight of the particles, and the styrenic polymer is present at from about 20% to about 80% by weight based on the weight of the particles.

摘要翻译： 改进聚乙烯拉伸膜的方法，其包括提供互聚物树脂颗粒，通过将共聚物树脂颗粒的共混物组合物的重量相混合为一种或多种聚乙烯树脂而形成聚乙烯共混物组合物约0.1-约10％ 并由聚乙烯共混组合物形成薄膜。 互聚物树脂颗粒含有嵌入在第一聚烯烃内的苯乙烯聚合物，其中第一聚烯烃以基于颗粒重量的约20％至约80％重量存在，苯乙烯类聚合物的存在量为约20％ 至约80重量％，基于颗粒的重量。