HETEROPHASIC POLYOLEFIN COMPOSITION
    3.
    发明授权
    HETEROPHASIC POLYOLEFIN COMPOSITION 有权
    多相聚烯烃组合

    公开(公告)号:EP2164899B1

    公开(公告)日:2013-12-25

    申请号:EP08784731.5

    申请日:2008-07-11

    IPC分类号: C08L23/10 C08L23/14 C08L23/16

    摘要: The present invention provides a polyolefin composition comprising: (a) a propylene homopolymer component (A), and (b) a propylene random copolymer component (B) comprising repeating units derived from at least one comonomer selected from the group consisting of ethylene and ±-olefin monomers, wherein the random propylene copolymer component (B) has an MFR2 of from 0.5 to 15, and wherein the propylene homopolymer component (A) may comprise up to 1-wt% of at least one comonomer selected from the group consisting of ethylene and ±-olefin monomers, and wherein the MRF2 ratio of component (A)/component (B) is equal to or greater than 5. The present invention further provides a heterophasic polyolefin composition comprising a mixture of the above polyolefin composition as the matrix phase, and a rubber component dispersed therein.

    HETEROPHASIC POLYOLEFIN COMPOSITION
    5.
    发明公开
    HETEROPHASIC POLYOLEFIN COMPOSITION 有权
    多相聚烯烃组合

    公开(公告)号:EP2164899A1

    公开(公告)日:2010-03-24

    申请号:EP08784731.5

    申请日:2008-07-11

    IPC分类号: C08L23/10 C08L23/14 C08L23/16

    摘要: The present invention provides a polyolefin composition comprising: (a) a propylene homopolymer component (A), and (b) a propylene random copolymer component (B) comprising repeating units derived from at least one comonomer selected from the group consisting of ethylene and α-olefin monomers, wherein the random propylene copolymer component (B) has an MFR2 of from 0.5 to 15, and wherein the propylene homopolymer component (A) may comprise up to 1 -wt% of at least one comonomer selected from the group consisting of ethylene and α-olefin monomers, and wherein the MRF2 ratio of component (A)/component (B) is equal to or greater than 5. The present invention further provides a heterophasic polyolefin composition comprising a mixture of the above polyolefin composition as the matrix phase, and a rubber component dispersed therein.

    PROCESS FOR THE PREPARATION OF CREEP-RESISTANT POLYPROPYLENE BLOCK COPOLYMERS
    7.
    发明授权
    PROCESS FOR THE PREPARATION OF CREEP-RESISTANT POLYPROPYLENE BLOCK COPOLYMERS 失效
    用于生产聚丙烯蠕变嵌段共聚物

    公开(公告)号:EP0894103B2

    公开(公告)日:2008-02-27

    申请号:EP97917322.6

    申请日:1997-04-18

    IPC分类号: C08F297/08

    CPC分类号: F16L9/133 F16L57/02

    摘要: The invention relates to a process for the preparation of a polypropylene for e.g. pipe applications, containing from 1.0 to 10.0 % by weight of ethylene or C4-C10- alpha -olefin repeating units and having an MFR2 value of between 0.05 and 0.40 g/10 min by polymerizing propylene and ethylene in the presence of a catalyst system. The creep-resistance of the polypropylene is improved by performing the process by means of the following steps: (a) copolymerizing propylene and ethylene into a random copolymer at 40 to 110 DEG C using: a portion of ethylene or C4-C10- alpha -olefin leading to 1.0 to 10.0 % by weight of ethylene repeating units in said random copolymer; and no or a minimal amount of hydrogen leading to an MFR10 value of between 0.01 and 5.0 g/10 min for said random copolymer, if this step is performed first, or to an MFR2 value for said polypropylene of between 0.05 and 0.40 g/10 min, if this step is performed after step (b); the proportion of random copolymer of this step being from 20 to 80 % by weight of said polypropylene, (b) polymerizing propylene at 40 to 110 DEG C using: no or a minimal portion of ethylene leading to 0.0 to 1.0 % by weight of ethylene repeating units in the polymer resulting from this step; and an amount of hydrogen leading to an MFR2 value for said polypropylene of between 0.05 and 0.40 g/10 min, if this step is performed after step (a); the proportion of polymer of this step being from 80 to 20 % by weight of said polypropylene. The polypropylene can be elastomer modified.

    USE OF A ZIEGLER-NATTA PROCATALYST CONTAINING A TRANSESTERIFICATION PRODUCT OF A LOWER ALCOHOL AND A PHTHALIC ESTER FOR THE PRODUCTION OF REACTOR GRADE THERMOPLASTIC POLYOLEFINS WITH IMPROVED PAINTABILITY
    9.
    发明公开
    USE OF A ZIEGLER-NATTA PROCATALYST CONTAINING A TRANSESTERIFICATION PRODUCT OF A LOWER ALCOHOL AND A PHTHALIC ESTER FOR THE PRODUCTION OF REACTOR GRADE THERMOPLASTIC POLYOLEFINS WITH IMPROVED PAINTABILITY 有权
    USING A一个低级醇的酯交换反应和邻苯二甲酸酯含齐格勒 - 纳塔前催化剂用于生产核质量的热塑性聚烯烃具有改良涂覆性能

    公开(公告)号:EP2222726A1

    公开(公告)日:2010-09-01

    申请号:EP08858103.8

    申请日:2008-11-24

    IPC分类号: C08F10/06 C08F4/651

    摘要: Use of a Ziegler-Natta procatalyst which contains a trans-estehfication product of a lower alcohol and a phthalic ester for the production of reactor grade thermoplastic polyolefins with improved paintability, characterized in that the procatalyst used has been prepared by a) reacting a spray crystallized or emulsion solidified adduct of MgCl2 and a C1-C2 alcohol with TiCI4 b) reacting the product of stage a) with a dialkylphthalate of formula (I): wherein R1' and R2' are independently at least a C5 alkyl under conditions where a transesterification between said C1 to C2 alcohol and said dialkylphthalate of formula (I) takes place to form the internal donor c) washing the product of stage b) or d) optionally reacting the product of step c) with TiCI4, as well as reactor grade thermoplastic polyolefins prepared by using the above described Ziegler-Natta procatalyst, use of these reactor grade thermoplastic polyolefins, molded articles produced from them and a method to improve paintability and/or surface quality of reactor grade thermoplastic polyolefin resin articles.

    摘要翻译: 齐格勒 - 纳塔主催化剂包含低级醇和用于生产具有改进的涂料能力的反应器级热塑性聚烯烃的邻苯二甲酸酯的反式酯化产物,在使用DASS模具原催化剂为特征的使用已经制备由A)反应的喷雾结晶 或乳液固化的MgCl 2加合物和一个C 1 -C 2醇与四氯化钛b)反应阶段a)的产物与式的二烷基邻苯二甲酸酯(I)worin R 1“和R 2”独立地为至少C 5至 条件下的烷基,其中在C 2上醇和式(I)的说二烷基所述C 1之间的酯交换反应发生以形成内部供体,c)洗涤步骤b)的产物或d)任选地反应步骤C的产物)与 的TiCl 4,以及反应器级热塑性通过使用上述齐格勒 - 纳塔主催化剂,使用由它们制备的合成反应器级热塑性聚烯烃模塑制品和所述的方法制备的聚烯烃 证明涂料能力和/或反应器级热塑性聚烯烃树脂物品的表面质量。