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1. 发明授权

US06812289B2 Cast stretch film of interpolymer compositions 有权
标题翻译：互聚物组合物的拉伸膜
公开(公告)号：US06812289B2
公开(公告)日：2004-11-02
申请号：US10200814
申请日：2002-07-22
申请人： Jozef J. I. Van Dun , Jacquelyn A. deGroot , Pradeep Jain , Kalyan Sehanobish , Pak-Wing S. Chum
发明人： Jozef J. I. Van Dun , Jacquelyn A. deGroot , Pradeep Jain , Kalyan Sehanobish , Pak-Wing S. Chum
IPC分类号： C08L2300
CPC分类号： B32B27/32 , Y10S526/943
摘要： This invention relates to cast films prepared from interpolymer compositions comprising; (A) a substantially linear ethylene/&agr;-olefin interpolymer present in the composition in an amount of from about 10 to about 100% by weight based on the combined weight of Components A and B; and (B) a heterogeneous interpolymer present in the composition in an amount of from about 0 to about 90% by weight based on the combined weight of Components A and B; and wherein said interpolymer composition has an I10/I2 value of −1.2−1.3* log(I2) The interpolymer compositions are useful in cast stretch film manufacture with the resulting cast films having an excellent balance of strength and processability.
摘要翻译：本发明涉及由互聚物组合物制备的流延膜，其包含：（A）组合物中基本上线性的乙烯/α-烯烃互聚物，其量为约10至约100重量％，基于组分A和 B; 和（B）基于组分A和B的组合重量，组合物中存在的异构互聚物的量为约0至约90重量％; 并且其中所述互聚物组合物的I 10 / I 2值<约10.0，并且其特征在于具有100rad / s的粘度和满足以下关系之一的弛豫时间（τ）;或所述互聚物组合物可用于铸塑拉伸膜制造出具有优异的强度和加工性能的所得流延薄膜。

2. 发明授权

US06451916B1 Broad MWD, compositionally uniform ethylene interpolymer compositions, process for making the same and article made therefrom 有权
标题翻译：宽MWD，组成均匀的乙烯互聚物组合物，其制备方法和由其制成的制品
公开(公告)号：US06451916B1
公开(公告)日：2002-09-17
申请号：US09943853
申请日：2001-08-31
申请人： Kenneth W. Anderson , Pak-Wing S. Chum , David A. Eversdyk , Lonnie G. Hazlitt , Pradeep Jain , Kalyan Sehanobish , Li-Min Tau
发明人： Kenneth W. Anderson , Pak-Wing S. Chum , David A. Eversdyk , Lonnie G. Hazlitt , Pradeep Jain , Kalyan Sehanobish , Li-Min Tau
IPC分类号： C08F800
CPC分类号： B01J8/0015 , B01J19/2435 , C08F10/02 , C08F110/02 , C08F210/16 , C08J5/18 , C08J2323/08 , C08L23/04 , C08L2205/02 , Y10T428/31909 , Y10T428/31913 , Y10T428/31938 , C08F2/001 , C08L2666/04 , C08F2500/04 , C08F2500/12 , C08F2500/26 , C08F210/14
摘要： The present invention pertains to a continuous process and polymerization system characterized by separate injection of catalyst and make-up feed, an ethylene interpolymer composition characterized as having broad molecular weight distribution (MWD) and optimized compositional uniformity, a process for making such a composition and a fabricated article made from such composition. The novel composition is characterized as having a melt flow ratio, I10/I2, from 8 to 30, a Mw/Mn of greater than 4 as determined by gel permeation chromatography, a melt index, I2, from 0.01 to 1000 grams/10 minutes, preferably greater that 0.1 to 10 grams/10 minutes, and a density less than 0.945 g/cm3. The novel composition exhibits good processibility and improved toughness properties, especially excellent film tear and impact resistance, and is particularly well-suited for use in applications such as high performance trash can liners and heavy duty shipping bags.
摘要翻译：本发明涉及连续工艺和聚合体系，其特征在于分别注入催化剂和补充进料，特征在于具有宽分子量分布（MWD）和优化的组成均匀性的乙烯互聚物组合物，制备这种组合物的方法和由这种组合物制成的制成品。该新型组合物的特征在于具有通过凝胶渗透色谱法测定的熔体流动比I10 / I2，8至30，Mw / Mn大于4，熔体指数I 2为0.01至1000克/ 10分钟，优选为0.1〜10克/ 10分钟，密度小于0.945g / cm 3。该新型组合物显示出良好的加工性和改进的韧性，特别优异的膜撕裂和抗冲击性，并且特别适合用于高性能垃圾桶衬里和重型运输袋等应用中。

3. 发明授权

US06319989B1 Broad MWD, compositionally uniform ethylene interpolymer compositions, process for making the same and article made therefrom 有权
标题翻译：宽MWD，组成均匀的乙烯互聚物组合物，其制备方法和由其制成的制品
公开(公告)号：US06319989B1
公开(公告)日：2001-11-20
申请号：US09463207
申请日：2000-01-20
申请人： Kenneth W. Anderson , Pak-Wing S. Chum , David A. Eversdyk , Lonnie G. Hazlitt , Pradeep Jain , Kalyan Sehanobish , Li-Min Tau
发明人： Kenneth W. Anderson , Pak-Wing S. Chum , David A. Eversdyk , Lonnie G. Hazlitt , Pradeep Jain , Kalyan Sehanobish , Li-Min Tau
IPC分类号： C08F800
CPC分类号： C08J5/18 , B01J8/0015 , B01J19/2435 , C08F10/02 , C08F110/02 , C08F210/16 , C08J2323/08 , C08L23/04 , C08L2205/02 , C08F2/001 , C08L2666/04 , C08F2500/04 , C08F2500/12 , C08F2500/26 , C08F210/14
摘要： The present invention pertains to a continuous process and polymerization system characterized by separate injection of catalyst and make-up feed, an ethylene interpolymer composition characterized as having broad molecular weight distribution (MWD) and optimized compositional uniformity, a process for making such a compostion and a fabricated article made from such composition. The novel composition is characterized as having a melt flow ratio, I10/I2, from 8 to 30, a Mw/Mn of greater than 4 as determined by gel permeation chromatography, a melt index, I2, from 0.01 to 1000 grams/10 minutes, preferably greater that 0.1 to 10 grams/10 minutes, and a density less than 0.945 g/cm3. The novel composition exhibits good processibility and improved toughness properties, especially excellent film tear and impact resistance, and is particularly well-suited for use in applications such as high performance trash can liners and heavy duty shipping bags.
摘要翻译：本发明涉及连续工艺和聚合体系，其特征在于分别注入催化剂和补充进料，特征在于具有宽分子量分布（MWD）和优化的组成均匀性的乙烯互聚物组合物，制备这种组合物的方法和由这种组合物制成的制成品。该新型组合物的特征在于具有通过凝胶渗透色谱法测定的熔体流动比I10 / I2，8至30，Mw / Mn大于4，熔体指数I 2为0.01至1000克/ 10分钟，优选为0.1〜10克/ 10分钟，密度小于0.945g / cm 3。该新型组合物显示出良好的加工性和改进的韧性，特别优异的膜撕裂和抗冲击性，并且特别适合用于高性能垃圾桶衬里和重型运输袋等应用中。

4. 发明授权

US5874139A Multilayer polyolefin with balanced sealant properties 失效
标题翻译：具有平衡密封胶性能的多层聚烯烃
公开(公告)号：US5874139A
公开(公告)日：1999-02-23
申请号：US748321
申请日：1996-11-13
申请人： Luc Bosiers , Jacquelyn A. deGroot , Lawrence T. Kale , Pak-Wing S. Chum
发明人： Luc Bosiers , Jacquelyn A. deGroot , Lawrence T. Kale , Pak-Wing S. Chum
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 , B29D23/00 , B32B7/02 , B32B27/08
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 generally provides a multilayer structure that includes a polymer mixture made from at least two polymer component materials. The invention particularly pertains to a multilayer structure containing an improved sealant layer and a polypropylene layer, wherein the sealant layer is made from a homogeneously branched ethylene polymer having particular molecular weight characteristics and a second ethylene polymer. The sealant layer has balanced properties such low heat seal and hot tack initiation temperature, a high hot tack strength and a broad hot tack seal window. The multilayer structure is particularly useful as a biaxially oriented polypropylene (BOPP) packaging film structure.
摘要翻译：本发明通常提供一种多层结构，其包括由至少两种聚合物组分材料制成的聚合物混合物。本发明特别涉及包含改进的密封剂层和聚丙烯层的多层结构，其中密封剂层由具有特定分子量特性的均匀支化的乙烯聚合物和第二乙烯聚合物制成。密封剂层具有低热封和热粘着点引发温度，高粘性强度和宽热粘性密封窗的平衡性能。多层结构作为双轴取向聚丙烯（BOPP）包装膜结构特别有用。

5. 发明授权

US5231151A Silica supported transition metal catalyst 失效
标题翻译：二氧化硅负载过渡金属催化剂
公开(公告)号：US5231151A
公开(公告)日：1993-07-27
申请号：US854175
申请日：1992-03-20
申请人： Lee Spencer , Brian W. S. Kolthammer , Miriam P. Ripplinger , Jeffrey J. Wooster , Pak-Wing S. Chum , Jacquelyn A. deGroot
发明人： Lee Spencer , Brian W. S. Kolthammer , Miriam P. Ripplinger , Jeffrey J. Wooster , Pak-Wing S. Chum , Jacquelyn A. deGroot
IPC分类号： C08J5/18 , B29C55/02 , B29K23/00 , B29L7/00 , C08F4/646 , C08F4/658 , C08F4/685 , C08F10/00 , C08F210/00 , C08F210/02 , C08F210/16
CPC分类号： C08F10/00 , Y10S428/91 , Y10T428/26 , Y10T428/31855
摘要： A transition metal containing catalyst useful for the polymerization of .alpha.-olefins is prepared by (A) forming in an inert atmosphere which excludes oxygen and moisture a slurry of (1) a porous inorganic oxide support material selected from the group consisting of silica, alumina, or a combination of silica and alumina, said support material containing not greater than about 5 millimoles of hydroxyl groups per gram of support material and a particle size not greater than about 10 microns and a surface area of from about 50 to about 800 m.sup.2 /g in an inert organic liquid medium; (B) mixing said slurry with (2) an alkoxide and stirring the resultant mixture at a temperature of from about -20.degree. C. to about 120.degree. C. for a time sufficient to saturate the surface of the support material; (C) mixing the product form (B) with (3) a titanium compound or a combination of a titanium compound and (4) a vanadium compound and stirring the resultant mixture at a temperature of from about -20.degree. C. to about 120.degree. C. for a time sufficient to allow complete reaction of the titanium compound and the vanadium compound with the organomagnesium moieties remaining on the solid support; (D) mixing the product from (C) with an inert organic solution of (5) a Group IIIA metal alkyl halide at a temperature of from about -20.degree. C. to about 120.degree. C. for a time sufficient to complete the reduction of the titanium and vanadium, if present, compounds to their final oxidation state.
摘要翻译：用于α-烯烃聚合的含过渡金属的催化剂通过以下步骤制备：（A）在惰性气氛中形成不含氧和水分的淤浆（1）多孔无机氧化物载体材料，其选自二氧化硅，氧化铝，或二氧化硅和氧化铝的组合，所述载体材料每克载体材料含有不大于约5毫摩尔羟基，粒度不大于约10微米，表面积为约50至约800平方米/ g在惰性有机液体介质中; （B）将所述浆料与（2）醇盐混合并在约-20℃至约120℃的温度下搅拌所得混合物足以使载体材料表面饱和的时间; （C）将产品形式（B）与（3）钛化合物或钛化合物和（4）钒化合物的组合混合并在约-20℃至约120℃的温度下搅拌所得混合物在足以允许钛化合物和钒化合物与残留在固体载体上的有机镁部分完全反应的时间; （D）将来自（C）的产物与（5）IIIA族金属烷基卤的惰性有机溶液在约-20℃至约120℃的温度下混合足以完成还原的时间的钛和钒（如果存在）化合物达到其最终氧化态。

6. 发明授权

US5487938A Silica supported transition metal catalyst 失效
标题翻译：二氧化硅负载过渡金属催化剂
公开(公告)号：US5487938A
公开(公告)日：1996-01-30
申请号：US336947
申请日：1994-11-10
申请人： Lee Spencer , Brian W. S. Kolthammer , Miriam P. Ripplinger , Jeffrey J. Wooster , Pak-Wing S. Chum , Jacquelyn A. deGroot
发明人： Lee Spencer , Brian W. S. Kolthammer , Miriam P. Ripplinger , Jeffrey J. Wooster , Pak-Wing S. Chum , Jacquelyn A. deGroot
IPC分类号： C08J5/18 , B29C55/02 , B29K23/00 , B29L7/00 , C08F4/646 , C08F4/658 , C08F4/685 , C08F10/00 , C08F210/00 , C08F210/02 , C08F210/16 , B32B7/12
CPC分类号： C08F10/00 , Y10S428/91 , Y10T428/26 , Y10T428/31855
摘要： A transition metal containing catalyst useful for the polymerization of .alpha.-olefins is prepared by (A) forming in an inert atmosphere which excludes oxygen and moisture a slurry of (1) a porous inorganic oxide support material selected from the group consisting of silica, alumina, or a combination of silica and alumina, said support material containing not greater than about 5 millimoles of hydroxyl groups per gram of support material and a particle size not greater than about 10 microns and a surface area of from about 50 to about 800 m.sup.2 /g in an inert organic liquid medium; (B) mixing said slurry with (2) an alkoxide and stirring the resultant mixture at a temperature of from about -20.degree. C. to about 120.degree. C. for a time sufficient to saturate the surface of the support material; (C) mixing the product form (B) with (3) a titanium compound or a combination of a titanium compound and (4) a vanadium compound and stirring the resultant mixture at a temperature of from about -20.degree. C. to about 120.degree. C. for a time sufficient to allow complete reaction of the titanium compound and the vanadium compound with the organomagnesium moieties remaining on the solid support; (D) mixing the product from (C) with an inert organic solution of (5) a Group IIIA metal alkyl halide at a temperature of from about -20.degree. C. to about 120.degree. C. for a time sufficient to complete the reduction of the titanium and vanadium, if present, compounds to their final oxidation state. Ethylene/alpha-olefin copolymers which have greater than 17 percent high density fraction and a M.sub.w /M.sub.n ratio of less than about 3.6 are shown to be useful in making cast films which have good stretchability and good puncture resistance. Copolymers of the present invention having the specified properties are especially useful in making the films.
摘要翻译：用于α-烯烃聚合的含过渡金属的催化剂通过以下步骤制备：（A）在惰性气氛中形成不含氧和水分的淤浆（1）多孔无机氧化物载体材料，其选自二氧化硅，氧化铝，或二氧化硅和氧化铝的组合，所述载体材料每克载体材料含有不大于约5毫摩尔羟基，粒度不大于约10微米，表面积为约50至约800平方米/ g在惰性有机液体介质中; （B）将所述浆料与（2）醇盐混合并在约-20℃至约120℃的温度下搅拌所得混合物足以使载体材料表面饱和的时间; （C）将产品形式（B）与（3）钛化合物或钛化合物和（4）钒化合物的组合混合并在约-20℃至约120℃的温度下搅拌所得混合物在足以允许钛化合物和钒化合物与残留在固体载体上的有机镁部分完全反应的时间; （D）将来自（C）的产物与（5）IIIA族金属烷基卤的惰性有机溶液在约-20℃至约120℃的温度下混合足以完成还原的时间的钛和钒（如果存在）化合物达到其最终氧化态。显示出具有大于17％的高密度分数和小于约3.6的Mw / Mn比的乙烯/α-烯烃共聚物可用于制备具有良好的拉伸性和良好的耐穿刺性的流延薄膜。具有特定性质的本发明的共聚物在制备膜中特别有用。

7. 发明授权

US06172173B2 Silica supported transition metal catalyst 失效
标题翻译：二氧化硅负载过渡金属催化剂
公开(公告)号：US06172173B2
公开(公告)日：2001-01-09
申请号：US08946785
申请日：1997-10-08
申请人： Lee Spencer , Brian W. S. Kolthammer , Miriam P. Ripplinger , Jeffrey J. Wooster , Pak-Wing S. Chum , Jacquelyn A. deGroot
发明人： Lee Spencer , Brian W. S. Kolthammer , Miriam P. Ripplinger , Jeffrey J. Wooster , Pak-Wing S. Chum , Jacquelyn A. deGroot
IPC分类号： C08F1014
CPC分类号： C08L23/04 , C08F110/02 , C08L23/0815 , C08L2205/02 , C08L2205/025 , C08L2308/00 , C08L2314/02 , C08L2666/04 , C08F2500/08 , C08F2500/12 , C08F2500/24
摘要： A polymer produced by a transition metal containing catalyst useful for the polymerization of &agr;-olefins is prepared by (A) forming in an inert atmosphere which excludes oxygen and moisture a slurry of (1) a porous inorganic oxide support material selected from the group consisting of silica, alumina, or a combination of silica and alumina, said support material containing not greater than about 5 millimoles of hydroxyl groups per gram of support material and a particle size not greater than about 10 microns and a surface area of from about 50 to about 800 m2/g in an inert organic liquid medium; (B) mixing said slurry with (2) an alkoxide and stirring the resultant mixture at a temperature of from about −20° C. to about 120° C. for a time sufficient to saturate the surface of the support material; (C) mixing the product form (B) with (3) a titanium compound or a combination of a titanium compound and (4) a vanadium compound and stirring the resultant mixture at a temperature of from about −20° C. to about 120° C. for a time sufficient to allow complete reaction of the titanium compound and the vanadium compound with the organomagnesium moieties remaining on the solid support; (D) mixing the product from (C) with an inert organic solution of (5) a Group IIIA metal alkyl halide at a temperature of from about −20° C. to about 120° C. for a time sufficient to complete the reduction of the titanium and vanadium, if present, compounds to their final oxidation state. Ethylene/alpha-olefin copolymers which have greater than 17 percent high density fraction and a Mw/Mn ratio of less than about 3.6 are shown to be useful in making cast films which have good stretchability and good puncture resistance. Copolymers of the present invention having the specified properties are especially useful in making the films.
摘要翻译：由用于α-烯烃聚合的含过渡金属的催化剂制备的聚合物是通过（A）在惰性气氛中形成的，其中不包括氧气和水分，（1）多孔无机氧化物载体材料的浆料选自的二氧化硅，氧化铝或二氧化硅和氧化铝的组合，所述载体材料每克载体材料含有不大于约5毫摩尔羟基，粒径不大于约10微米，表面积为约50至在惰性有机液体介质中约800m 2 / g; （B）将所述浆料与（2）醇盐混合并在约-20℃至约120℃的温度下搅拌所得混合物足以使载体材料表面饱和的时间; （C）将产品形式（B）与（3）钛化合物或钛化合物和（4）钒化合物的组合混合并在约-20℃至约120℃的温度下搅拌所得混合物在足以允许钛化合物和钒化合物与残留在固体载体上的有机镁部分完全反应的时间; （D）将来自（C）的产物与（5）IIIA族金属烷基卤的惰性有机溶液在约-20℃至约120℃的温度下混合足以完成还原的时间的钛和钒（如果存在）化合物达到其最终氧化态。显示出具有大于17％的高密度分数和小于约3.6的Mw / Mn比的乙烯/α-烯烃共聚物可用于制备具有良好的拉伸性和良好的耐穿刺性的流延薄膜。具有特定性质的本发明的共聚物在制备膜中特别有用。

8. 发明授权

US6005053A Polyolefin elastomer blends exhibiting improved properties 失效
标题翻译：表现出改进性能的聚烯烃弹性体共混物
公开(公告)号：US6005053A
公开(公告)日：1999-12-21
申请号：US784681
申请日：1997-01-22
申请人： Deepak R. Parikh , Pak-Wing S. Chum , Rajen M. Patel , Klye G. Kummer , Pradeep Jain , Thomas J. McKeand, Jr. , Ronald P. Markovich , Timothy E. Clayfield , Wasif Ahmed Khan
发明人： Deepak R. Parikh , Pak-Wing S. Chum , Rajen M. Patel , Klye G. Kummer , Pradeep Jain , Thomas J. McKeand, Jr. , Ronald P. Markovich , Timothy E. Clayfield , Wasif Ahmed Khan
IPC分类号： C08L23/04 , C08L23/08 , C08L91/00 , C08L33/02
CPC分类号： C08L23/0815 , C08L2205/02 , C08L91/00
摘要： Polymer mixtures are disclosed which comprise at least one homogeneously branched ethylene polymer (A) and at least one ethylene polymer (B) having a crystallinity which is at least 7% greater than the crystallinity of polymer (A) with certain provisos. A process for making a molded article using the disclosed polymer mixtures is disclosed as well as films, film layers, coatings and molded articles formed from those mixtures. These mixtures have several advantages over polymer compositions of the prior art, including improved properties at elevated temperatures such as improved softening point under load, improved hardness, improved toughness, improved 100% modulus of elasticity, improved compression set, improved ability to prevent oil bleed out at lower temperatures when the mixture contains oil and reduced injection molding cycle time. The mixtures retain their performance advantages even when substantial amounts of additives such as oil and filler are incorporated into the mixture. The mixtures may also be crosslinked after they are formed into the shape of an article to form vulcanized elastomeric products. The polymer mixtures have utility in a variety of applications.
摘要翻译：公开了包含至少一种均匀支化的乙烯聚合物（A）和至少一种乙烯聚合物（B）的聚合物混合物，其结晶度比聚合物（A）的结晶度大至少7％，具有某些条件。公开了使用所公开的聚合物混合物制备模塑制品的方法以及由这些混合物形成的薄膜，薄膜层，涂层和模塑制品。这些混合物具有优于现有技术的聚合物组合物的几个优点，包括在升高的温度下改进的性能，例如负载下改进的软化点，改进的硬度，改进的韧性，改进的100％弹性模量，改进的压缩永久变形，改进的防止油渗出的能力当混合物含有油和降低注塑周期时，在较低的温度下出来。即使将大量的添加剂如油和填料加入到混合物中，混合物也保持其性能优势。在混合物形成制品的形状以形成硫化的弹性体产品之后，它们也可以交联。聚合物混合物可用于各种应用。

9. 发明授权

US06906141B2 Polymer blend and fabricated article made from diverse ethylene interpolymers 失效
标题翻译：由不同乙烯互聚物制成的聚合物共混物和制造品
公开(公告)号：US06906141B2
公开(公告)日：2005-06-14
申请号：US10790337
申请日：2004-03-01
申请人： Pak-Wing S. Chum , Kurt W. Swogger , Thomas Oswald , Pradeep Jain
发明人： Pak-Wing S. Chum , Kurt W. Swogger , Thomas Oswald , Pradeep Jain
IPC分类号： C08F210/16 , C08J5/18 , C08L23/04 , C08L23/08 , C08F8/00 , B32B27/08 , C08L23/00 , D02G3/00
CPC分类号： C08L23/0815 , C08F210/16 , C08J5/18 , C08J2323/08 , C08L23/04 , C08L2205/02 , C08L2314/06 , Y10T428/1334 , Y10T428/1345 , Y10T428/2913 , Y10T428/2929 , Y10T428/31913 , C08L2666/04 , C08F210/14 , C08F2500/03 , C08F2500/09 , C08F2500/08 , C08F2500/12 , C08F2500/26
摘要： Polymer blends are described that include at least one first ethylene interpolymer and at least one second ethylene interpolymer wherein the difference in the number of carbon atoms in the comonomer of the first interpolymer and the comonomer of the second interpolymer is at least two, wherein the first interpolymer and/or the second interpolymer has molecular weight distribution of from about 1.8 to about 2.8; and wherein the polymer blend has a density greater than or equal to 0.90 g/cm3. Articles made from such blends are also disclosed.
摘要翻译：描述了包含至少一种第一乙烯互聚物和至少一种第二乙烯互聚物的聚合物共混物，其中第一互聚物的共聚单体和第二互聚物的共聚单体中的碳原子数的差异为至少两个，其中第一互聚物和/或第二互聚物的分子量分布为约1.8至约2.8; 并且其中所述聚合物共混物的密度大于或等于0.90g / cm 3。还公开了由这种共混物制成的制品。

10. 发明授权

US08541077B2 Oriented multi-layer shrink labels 有权
标题翻译：定向多层收缩标签
公开(公告)号：US08541077B2
公开(公告)日：2013-09-24
申请号：US12093891
申请日：2006-11-02
申请人： Rajen M. Patel , Debra H. Niemann , Pak-Wing S. Chum , Moris Amon , Evgueni Rozenbaoum , Chia-Hsi Chu
发明人： Rajen M. Patel , Debra H. Niemann , Pak-Wing S. Chum , Moris Amon , Evgueni Rozenbaoum , Chia-Hsi Chu
IPC分类号： B65B53/00 , B32B1/02 , B32B1/08 , B32B27/08 , B32B27/30 , B32B27/32 , B32B27/36
CPC分类号： G09F3/04 , B32B7/12 , B32B27/08 , B32B27/302 , B32B27/304 , B32B27/32 , B32B27/36 , B32B2274/00 , B32B2307/514 , B32B2307/702 , B32B2307/72 , B32B2307/736 , B32B2519/00 , Y10T428/1328 , Y10T428/1334 , Y10T428/1341 , Y10T428/1352 , Y10T428/1386 , Y10T428/1393 , Y10T428/24942 , Y10T428/254 , Y10T428/31786 , Y10T428/31794 , Y10T428/31797 , Y10T428/31855 , Y10T428/31913 , Y10T428/3192 , Y10T428/31924 , Y10T428/31938
摘要： The present invention relates to a multi-layer oriented shrink film comprising at least one skin layer comprising a polystyrene material and at least one core layer comprising a polyolefin layer. The films are preferably primarily oriented in either the machine or the cross direction. These films are ideally suited for use as a shrink label which can be applied either as a CD shrink sleeve or applied using a continuous roll process. The films ideally have an overall density of less than 1.0 g/cm3, to facilitate recycling efforts.
摘要翻译：本发明涉及一种多层定向收缩膜，其包含至少一层包含聚苯乙烯材料的表皮层和至少一层包含聚烯烃层的芯层。膜优选主要在机器或横向方向上定向。这些膜理想地适合用作收缩标签，其可以作为CD收缩套筒使用，或者使用连续辊式方法施加。这些膜理想地具有小于1.0g / cm 3的总密度，以便于再循环。

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