PROPYLENE-BASED TERPOLYMER COMPOSITION FOR PIPES

    公开(公告)号:US20210214540A1

    公开(公告)日:2021-07-15

    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.

    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
    4.
    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。

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