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    • 1. 发明授权
    • Impact-modified thermoplastic polyolefins and articles fabricated
therefrom
    • 冲击改性的热塑性聚烯烃及其制造的制品
    • US6140420A
    • 2000-10-31
    • US204008
    • 1998-12-01
    • Kalyan SehanobishLarry A. MeiskeShaofu WuPak-Wing Steve Chum
    • Kalyan SehanobishLarry A. MeiskeShaofu WuPak-Wing Steve Chum
    • C08J3/20C08F10/02C08L23/00C08L23/08C08L23/12C08L23/16C08L51/00C08L101/00C08F8/30
    • C08L23/12C08L101/00C08L23/16C08L23/0815C08L2314/06Y10T428/1352
    • Melt processible thermoplastic compositions and method for making them are described, these compositions comprising a thermoplastic polymer resin matrix selected from the group consisting of thermoplastic polyurethanes, polyvinyl chlorides, styrenics, engineering thermoplastics, and polyolefins, at least about 25 percent (by weight based on the total composition) of an elastomeric impact modifier dispersed as discrete particles in the thermoplastic matrix (a); and at least about 10 percent (by weight based on the total composition) of at least one homogeneous linear or substantially linear ethylene polymer dispersed as discrete particles in at least the impact modifier (b), the ethylene polymer having a molecular weight distribution less than 3.5 and a density of at least 0.04 g/cm.sup.3 higher than the density of the impact modifier component (b), wherein the elastic modulus of the thermoplastic component (a) is at least 200 times greater than the elastic modulus of the impact modifier component (b). These thermoplastic compositions have improved processability. Processes for fabricating articles from them are described. The articles made with these compositions have improved properties such as low temperature impact strength, improved percent elongation to break, greater stiffness, and improved weld line strength, making them useful for applications requiring both strength and flexibility in low temperature environments, such as automotive components and facia.
    • 描述了可熔融加工的热塑性组合物及其制备方法,这些组合物包含选自热塑性聚氨酯,聚氯乙烯,苯乙烯,工程热塑性塑料和聚烯烃的热塑性聚合物树脂基体,至少约25%(以 分散在热塑性基体(a)中的离散颗粒的弹性体抗冲改性剂的总组成); 至少约10%(基于总组合物的重量计)至少一种均匀的直链或基本上线性的乙烯聚合物,其至少在至少抗冲改性剂(b)中分散成分散的颗粒,乙烯聚合物的分子量分布小于 3.5,并且比冲击改性剂组分(b)的密度高至少0.04g / cm 3的密度,其中热塑性组分(a)的弹性模量是冲击改性剂组分(a)的弹性模量的至少200倍 (b)。 这些热塑性组合物具有改善的加工性能。 描述从它们制造制品的方法。 用这些组合物制成的制品具有改进的性能,例如低温冲击强度,改善的断裂延伸百分比,更大的刚度和更好的焊接线强度,使得它们可用于在低温环境中要求强度和柔性的应用,例如汽车部件 和面。
    • 2. 发明授权
    • Impact-modified thermoplastic polyolefins and articles fabricated
therefrom
    • 冲击改性的热塑性聚烯烃及其制造的制品
    • US5861463A
    • 1999-01-19
    • US741648
    • 1996-10-31
    • Kalyan SehanobishShaofu WuLarry A. MeiskePak-Wing Steve Chum
    • Kalyan SehanobishShaofu WuLarry A. MeiskePak-Wing Steve Chum
    • C08J3/20C08F10/02C08L23/00C08L23/08C08L23/12C08L23/16C08L51/00C08L101/00C08F30/00
    • C08L23/12C08L101/00C08L23/16C08L23/0815C08L2314/06Y10T428/1352
    • Melt processible thermoplastic compositions and method for making them are described, these compositions comprising a) a polypropylene matrix, b) at least about 25 percent (by weight based on the total composition) of an elastomeric impact modifier dispersed as discrete particles in the polypropylene matrix (a); and c) at least about 10 percent (by weight based on the total composition) of at least one homogeneous linear or substantially linear ethylene polymer dispersed as discrete particles in at least the impact modifier (b), the ethylene polymer having a molecular weight distribution less than 3.5 and a density of at least 0.04 g/cm.sup.3 higher than the density of the impact modifier component (b), wherein the elastic modulus of the polypropylene (a) is at least 200 times greater than the elastic modulus of the impact modifier component (b).These thermoplastic compositions have improved processability. Processes for fabricating articles from them are described. The articles made with these compositions have improved properties such as low temperature impact strength, improved percent elongation to break, greater stiffness, and improved weld line strength, making them useful for applications requiring both strength and flexibility in low temperature environments, such as automotive components and facia.
    • 描述了可熔融加工的热塑性组合物及其制备方法,这些组合物包含a)聚丙烯基体,b)至少约25重量%(基于总组合物的重量)作为分散颗粒分散在聚丙烯基体中的弹性体抗冲改性剂 (一个); 和至少一种在至少一种抗冲改性剂(b)中作为离散颗粒分散的均匀线性或基本上线性的乙烯聚合物的至少约10重量%(基于总组合物计)),乙烯聚合物具有分子量分布 小于3.5,并且比冲击改性剂组分(b)的密度高至少0.04g / cm 3的密度,其中聚丙烯(a)的弹性模量比冲击改性剂的弹性模量大至少200倍 组分(b)。 这些热塑性组合物具有改善的加工性 描述从它们制造制品的方法。 用这些组合物制成的制品具有改进的性能,例如低温冲击强度,改善的断裂延伸百分比,更大的刚度和更好的焊接线强度,使得它们可用于在低温环境中要求强度和柔性的应用,例如汽车部件 和面。
    • 8. 发明授权
    • Method for preparing transition metal component of Ziegler-Natta
catalysts
    • 制备齐格勒 - 纳塔催化剂的过渡金属组分的方法
    • US4661465A
    • 1987-04-28
    • US894406
    • 1986-08-07
    • Ricardo Fuentes, Jr.Gary R. MarchandLarry A. Meiske
    • Ricardo Fuentes, Jr.Gary R. MarchandLarry A. Meiske
    • C08F4/62C08F10/00C08F4/64C08F4/68
    • C08F10/00
    • A method for preparing Ziegler catalysts is disclosed wherein a mixture (A) containing the product resulting from mixing in an inert hydrocarbon diluent (1) a hydrocarbon soluble magnesium alkyl compound in said hydrocarbon solvent, (2) an aliphatic alcohol or carbon dioxide and (3) a titanium compound is reacted with (B) a reducing halide source in said hydrocarbon solvent. Components (A) and (B) are mixed at a constant initial temperature. When the magnesium concentration in component (A) and the metal concentration in component (B) are relatively low, the resultant polymer has a relatively narrow particle size distribution whereas when said concentration is relatively high, the resultant polymer has a relatively broad particle size distribution. When the ratio of the number of moles of aliphatic alcohol:total number of hydrocarbyl groups attached to the metal atom in component (1) is relatively low, the resultant polymer has a relatively small average particle size. When the ratio of the number of moles of aliphatic alcohol:total number of hydrocarbyl groups attached to the metal atom in component (1) is relatively high, the resultant polymer has a relatively large average particle size.
    • 公开了一种制备齐格勒催化剂的方法,其中含有在惰性烃稀释剂(1)中混合产物的混合物(1)烃溶剂中的烃溶性烷基镁化合物,(2)脂族醇或二氧化碳和( 3)钛化合物与(B)还原卤化物源在所述烃溶剂中反应。 组分(A)和(B)在恒定的初始温度下混合。 当组分(A)中的镁浓度和组分(B)中的金属浓度相对较低时,所得聚合物具有相对窄的粒度分布,而当所述浓度相对较高时,所得聚合物具有相对宽的粒度分布 。 当脂肪族醇的摩尔数:组分(1)中与金属原子相连的烃基的总数相对较低时,所得聚合物的平均粒径相对较小。 当脂肪族醇的摩尔数:组分(1)中与金属原子相连的烃基的总数相对较高时,所得聚合物的平均粒径相对较大。
    • 9. 发明申请
    • POLYMER COMPOSITIONS, METHODS OF MAKING THE SAME, AND ARTICLES PREPARED FROM THE SAME
    • 聚合物组合物,其制备方法和由其制备的制品
    • US20120116021A1
    • 2012-05-10
    • US13377916
    • 2010-07-14
    • Wenbin LiangBrian W. WaltherTimothy E. ClayfieldArnis U. PaeglisSherrika D. DanielLarry A. Meiske
    • Wenbin LiangBrian W. WaltherTimothy E. ClayfieldArnis U. PaeglisSherrika D. DanielLarry A. Meiske
    • C08L47/00
    • C08L23/16C08F297/06C08L2205/02C08L2666/08C08L2666/06
    • The invention provides a composition comprising a first composition, which first composition comprises the following: A) a first interpolymer comprising, in polymerized form, ethylene, an α-olefin and a nonconjugated polyene; B) a second interpolymer comprising, in polymerized form, ethylene, an α-olefin and a nonconjugated polyene; and wherein the first composition has an [(ML(1+4, 125° C.))/Mw(conv)]*1000 greater than 0.429 mole/g. The invention also provides a composition comprising a first composition, which first composition comprises the following: A) a first interpolymer comprising, in polymerized form, ethylene, an α-olefin and a nonconjugated polyene; B) a second interpolymer comprising, in polymerized form, ethylene, an α-olefin and a nonconjugated polyene; and wherein the first composition has a Mooney Viscosity (ML, 1+4, 125° C.) greater than, or equal to, 70, and has a low shear viscosity (11 at 0.1 rad/sec) less than, or equal to, 100,000 Pa·sec. The invention also provides a composition comprising a first composition, which first composition comprises the following: A) a first interpolymer comprising, in polymerized form, ethylene, an α-olefin and a nonconjugated polyene; B) a second interpolymer comprising, in polymerized form, ethylene, an α-olefin and a nonconjugated polyene; and wherein the first composition has a Mooney Viscosity (ML(1+4, 125° C.)) greater than, or equal to, 70, and has an [Mw(abs)]/[Mw(conv)] less than 1.2.
    • 本发明提供一种包含第一组合物的组合物,其第一组合物包含以下物质:A)第一共聚物,其包含聚合形式的乙烯,α-烯烃和非共轭多烯; B)第二共聚体,其包含聚合形式的乙烯,α-烯烃和非共轭多烯; 并且其中所述第一组合物具有大于0.429摩尔/ g的[(ML(1 + 4,125℃))/ Mw(conv)] * 1000。 本发明还提供一种包含第一组合物的组合物,其第一组合物包含以下物质:A)以聚合形式包含乙烯,α-烯烃和非共轭多烯的第一共聚体; B)第二共聚体,其包含聚合形式的乙烯,α-烯烃和非共轭多烯; 并且其中第一组合物具有大于或等于70的门尼粘度(ML,1 + 4,125℃),并且具有小于或等于70的低剪切粘度(11弧度/秒) ,100,000Pa·秒。 本发明还提供一种包含第一组合物的组合物,其第一组合物包含以下物质:A)以聚合形式包含乙烯,α-烯烃和非共轭多烯的第一共聚体; B)第二共聚体,其包含聚合形式的乙烯,α-烯烃和非共轭多烯; 并且其中第一组合物具有大于或等于70的门尼粘度(ML(1 + 4,125℃)),并且具有小于1.2的[Mw(abs)] / [Mw(conv)) 。