Propylene-based terpolymer composition for pipes

    公开(公告)号:US12291627B2

    公开(公告)日:2025-05-06

    申请号:US17263338

    申请日:2019-07-22

    Abstract: The invention relates to a polypropylene composition comprising a terpolymer composition comprising (A) a first terpolymer fraction containing propylene, ethylene and 1-hexene, wherein the first terpolymer fraction has a melt flow rate of 0.005 to 0.20 dg/min determined by ISO 1133-1:2011 (230° C., 2.16 kg) and (B) a second terpolymer fraction containing propylene, ethylene and 1-hexene, wherein the second terpolymer fraction has a melt flow rate of 0.30 to 70 dg/min determined by ISO 1133-1:2011 (230° C., 2.16 kg), wherein the first terpolymer fraction is prepared using a first set of reaction conditions, the second terpolymer fraction is prepared using a second set of reaction conditions and the first and second set of reaction conditions are different, wherein the polypropylene composition (i) has a melt flow rate of 0.10 to 0.70 dg/min determined by ISO 1133-1:2011 (230° C., 2.16 kg), (ii) has a content of ethylene derived units in the range from 1.6 to 3.0 wt %; (iii) has a content of 1-hexene derived units in the range from 1.7 to 4.0 wt %; and (iv) has a ratio of the content of ethylene derived units to the content of 1-hexene derived units in the composition of at least 0.70.

    CATALYST SYSTEM FOR POLYMERIZATION OF AN OLEFIN
    17.
    发明申请
    CATALYST SYSTEM FOR POLYMERIZATION OF AN OLEFIN 审中-公开
    用于烯烃聚合的催化剂体系

    公开(公告)号:US20160333121A1

    公开(公告)日:2016-11-17

    申请号:US15105873

    申请日:2014-12-19

    Abstract: The present invention relates to a process for the preparation of a catalyst system suitable for olefin polymerization wherein the external electron donor is n-propyltriethoxysilane, and a catalyst system obtained or obtainable by said process. The invention also relates to a process for preparing a polyolefin using said catalyst system. The invention further relates to a polyolefin, in particular polyprolyene, obtainable by such a process, and shaped articles manufactured from such a polymer. The polymers produced using the catalyst system exhibit low volatiles and therefore have a reduced environmental and health impact.

    Abstract translation: 本发明涉及一种制备适用于烯烃聚合的催化剂体系的方法,其中外电子给体是正丙基三乙氧基硅烷,以及通过所述方法获得或可获得的催化剂体系。 本发明还涉及使用所述催化剂体系制备聚烯烃的方法。 本发明还涉及通过这种方法获得的聚烯烃,特别是聚丙烯烯,以及由这种聚合物制成的成型制品。 使用催化剂体系制备的聚合物表现出低挥发性,因此具有降低的环境和健康影响。

    CATALYST SYSTEM FOR POLYMERIZATION OF AN OLEFIN
    18.
    发明申请
    CATALYST SYSTEM FOR POLYMERIZATION OF AN OLEFIN 有权
    用于烯烃聚合的催化剂体系

    公开(公告)号:US20160311950A1

    公开(公告)日:2016-10-27

    申请号:US15106061

    申请日:2014-12-19

    Abstract: A process for the preparation of a catalyst system for olefin polymerization, including: A) providing said procatalyst obtainable via a process comprising: i) contacting a compound R4zMgX42-z with an alkoxy- or aryloxy-containing silane compound to give a first intermediate reaction product, ii) optionally contacting the solid product obtained in step i) with at least one activating compound selected from an activating electron donor or metal alkoxide compound; iii) contacting the first or second intermediate reaction product, with a halogen-containing Ti-compound and optionally an internal electron donor to obtain the procatalyst; and B) contacting the procatalyst with a co-catalyst and at least diethylaminotriethoxysilane as the external donor. Further disclosed is a catalyst system obtained by the process; a process for preparing a polyolefin by contacting at least one olefin with the catalyst system; a polyolefin obtained thereby; a composition comprising a propylene-ethylene copolymer; a shaped article thereof; and use of polyolefin.

    Abstract translation: 一种制备用于烯烃聚合的催化剂体系的方法,包括:A)提供可通过以下方法获得的所述主催化剂,所述方法包括:i)使化合物R4zMgX42-z与含烷氧基或芳氧基的硅烷化合物接触,得到第一中间反应 产品,ii)任选地使步骤i)中获得的固体产物与选自活化电子给体或金属醇盐化合物的至少一种活化化合物接触; iii)使第一或第二中间反应产物与含卤素的Ti化合物和任选的内部电子给体接触以获得前催化剂; 和B)使前催化剂与助催化剂和至少二乙基氨基三乙氧基硅烷作为外给体接触。 进一步公开了通过该方法获得的催化剂体系; 通过使至少一种烯烃与催化剂体系接触来制备聚烯烃的方法; 由此获得的聚烯烃; 包含丙烯 - 乙烯共聚物的组合物; 其成型制品; 并使用聚烯烃。

    POLYPROPYLENE COMPOSITION FOR NON-PRESSURIZED PIPES

    公开(公告)号:US20200332102A1

    公开(公告)日:2020-10-22

    申请号:US16956187

    申请日:2018-12-18

    Abstract: The invention relates to a polypropylene composition comprising a propylene homopolymer or propylene-ethylene copolymer having an ethylene content of at most (1.0) wt % based on the propylene-ethylene copolymer, wherein the amount of propylene homopolymer or propylene-ethylene copolymer is at least (98) wt %, for example at least (98.5) wt %, preferably at least (99) wt %, more preferably at least (99.5), for example at least (99.75) wt % based on the polypropylene composition, wherein the polypropylene composition has a melt flow rate in the range of (0.10) to less than (0.70) dg/min as measured according to ISO1133 (2.16 kg/230° C.), an Mw/Mn in the range from (7.0) to (13.0), wherein Mw stands for the weight average molecular weight and Mn stands for the number average weight, an Mz/Mn is in the range from (20) to (50), wherein Mz stands for the z-average molecular weight and wherein Mw, Mn and Mz are measured according to ASTM (D6474-12).

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