HETEROPHASIC POLYPROPYLENE COMPOSITION WITH IMPROVED BALANCE OF PROPERTIES

    公开(公告)号:US20210253836A1

    公开(公告)日:2021-08-19

    申请号:US16973673

    申请日:2019-07-10

    Applicant: BOREALIS AG

    Abstract: The present invention is directed to a heterophasic polypropylene composition having an improved balance of desirable properties, i.e. high stiffness, high toughness, and high transparency. The heterophasic polypropylene composition of the present invention comprises 60.0 to 95.0 wt % of a crystalline propylene homopolymer with a melting temperature Tm1 measured by differential scanning calorimetry of higher than 155° C., 5.0 to 20.0 wt % of an elastomeric ethylene-propylene rubber, and at least one polymeric nucleating agent, wherein the crystalline propylene homopolymer (H-PP) and the elastomeric ethylene-propylene rubber (EPR) have been produced in the presence of a single-site catalyst, wherein the heterophasic polypropylene composition is characterized by a soluble fraction determined in 1,2,4-trichlorobenzene at 40° C. in the range of 5.0 to 20.0 wt %, and wherein the soluble fraction has an ethylene in content in the range of 12.0 to 40.0 wt %. The present invention is further directed to a process for the preparation of the heterophasic polypropylene composition comprising polymerizing propylene in at least three polymerization steps in the presence of a single-site catalyst, wherein the at least one polymeric nucleating agent is introduced either as a master batch by a compounding step or via a prepolymerization step prior to the first polymerization step. The present invention is further directed to an article obtained by extrusion of the heterophasic polypropylene composition, and to a packaging article comprising the extruded article. Finally, the present invention is directed to the use of the heterophasic polypropylene composition for the production of extruded articles such as films or sheets.

    NEW CATALYST SYSTEM FOR PRODUCING POLYETHYLENE COPOLYMERS IN A HIGH TEMPERATURE SOLUTION POLYMERIZATION PROCESS
    12.
    发明申请
    NEW CATALYST SYSTEM FOR PRODUCING POLYETHYLENE COPOLYMERS IN A HIGH TEMPERATURE SOLUTION POLYMERIZATION PROCESS 审中-公开
    用于在高温溶液聚合方法中生产聚乙烯共聚物的新型催化剂体系

    公开(公告)号:US20170037164A1

    公开(公告)日:2017-02-09

    申请号:US15304629

    申请日:2015-04-15

    Applicant: BOREALIS AG

    Abstract: Catalyst system for producing ethylene copolymers in a high temperature solution process, the catalyst system comprising (i) a metallocene complex of formula (I) wherein M is Hf X is a sigma ligand, L is a bridge of the formula —SiR82—, wherein each R8 is independently a C1-C20-hydrocarbyl, tri(C1-C20-alkyl)silyl, C6-C20-aryl, C7-C20-arylalkyl or C7-C20-alkylaryl n is 0, 1 or 2 R1 and R1′ are the same or can be different and can be a linear or branched C1-C6-alkyl group, R2 and R2′ are the same or are different and are a CH2—R9 group, with R9 being H or linear or branched C1-C6-alkyl group R5 and R5′ are the same or are different and can be H or a linear or branched C1-C6-alkyl group or a OR group, wherein R is a C1-C6-alkyl group R6 and R6′ are the same or are different and can be H or a C(R10)3 group, with R10 being the same or different and R10 can be H or a linear or branched C1-C6-alkyl group or R5 and R6 and/or R5′ and R6′ taken together form an unsubstituted 4-7 membered ring condensed to the benzene ring of the indenyl moiety, and R7 and R7′ can be the same or are different and can be H or a linear or branched C1-C6-alkyl group (ii) an aluminoxane cocatalyst and/or (iii) a boron containing cocatalyst and (iv) optionally an aluminium alkyl compound.

    Abstract translation: 用于在高温溶液方法中生产乙烯共聚物的催化剂体系,所述催化剂体系包含(i)式(I)的茂金属络合物,其中MisHf X是σ配体,L是式-SiR 8 2 - 的桥,其中 每个R 3独立地为C 1 -C 20 - 烃基,三(C 1 -C 20 - 烷基)甲硅烷基,C 6 -C 20 - 芳基,C 7 -C 20 - 芳基烷基或C 7 -C 20 - 烷基芳基n 是0,1或2,R 1和R 1'相同或不同,可以是直链或支链C 1 -C 6 - 烷基,R 2和R 2'相同或不同,为 CH 2 -R 9基团,其中R 9为H或直链或支链C 1 -C 6烷基R 5和R 5'相同或不同,并且可以是H或直链或支链C 1 -C 6 - 烷基或OR基团,其中R是C 1 -C 6 - 烷基基团R 6和R 6'相同或不同,并且可以是H或C(R 10)3基团,其中R 10是 相同或不同,R 10可以是H或直链或支链C 1 -C 6烷基或R 5和R 6和/或R 5'和 R 6'一起形成未被取代的4-7元环稠合至茚基部分的苯环,R 7和R 7'可以相同或不同,可以是H或直链或支链C 1 -C (ii)铝氧烷助催化剂和/或(iii)含硼助催化剂和(iv)任选的烷基铝化合物。

    HETEROPHASIC POLYPROPYLENE POLYMER
    13.
    发明申请
    HETEROPHASIC POLYPROPYLENE POLYMER 有权
    异构聚丙烯聚合物

    公开(公告)号:US20160333175A1

    公开(公告)日:2016-11-17

    申请号:US15109855

    申请日:2015-01-06

    Applicant: BOREALIS AG

    Abstract: A heterophasic propylene ethylene copolymer having an MFR2 of 0.5 to 100 g/10m in and obtained using single site catalysis comprising: (i) a propylene homopolymer or propylene ethylene copolymer matrix having up to 4 wt % ethylene; and (ii) an ethylene propylene rubber (EPR) dispersed in the matrix; said heterophasic propylene ethylene copolymer having a xylene cold soluble content (XS) of 20 to 40%; wherein the ethylene content of the xylene cold soluble fraction of said heterophasic propylene ethylene copolymer is between 70 and 90 wt.%; wherein the xylene cold soluble fraction of said heterophasic propylene ethylene copolymer has an intrinsic viscosity (IV) of 3.0 dl/g or more; and wherein the melting enthalpy (AHM) of the heterophasic propylene ethylene copolymer is between 10 and 30 J/g at a temperature of 0 to 130° C.

    Abstract translation: 使用单位点催化得到MFR 2为0.5至100g / 10m的多相丙烯乙烯共聚物,其包含:(i)具有至多4重量%乙烯的丙烯均聚物或丙烯乙烯共聚物基质; 和(ii)分散在基质中的乙丙橡胶(EPR); 所述异相丙烯乙烯共聚物具有20至40%的二甲苯冷可溶物含量(XS); 其中所述多相丙烯乙烯共聚物的二甲苯冷可溶部分的乙烯含量为70-90重量%; 其中所述多相丙烯乙烯共聚物的二甲苯冷可溶部分的特性粘度(IV)为3.0dl / g以上; 并且其中异相丙烯乙烯共聚物的熔融焓(AHM)在0至130℃的温度下为10至30J / g。

    CATALYST
    15.
    发明申请
    CATALYST 审中-公开
    催化剂

    公开(公告)号:US20150329653A1

    公开(公告)日:2015-11-19

    申请号:US14654413

    申请日:2013-12-19

    Applicant: BOREALIS AG

    Abstract: A catalyst in solid particulate form free from an external carrier material comprising (i) a complex of formula (I) wherein M is zirconium or hafnium; each X is a sigma ligand; L is a divalent bridge selected from —R′2C—, —R′2C—CR′2—, —R′2Si—, —R′2Si—SiR′2—, —R′2Ge—, wherein each R′ is independently a hydrogen atom, C1-20-alkyl, tri(C1-20-alkyl)silyl, C6-20-aryl, C7-20-arylalkyl or C7-20-alkylaryl; R2 is a C1-20-hydrocarbyl radical; R2′ is a C1-20-hydrocarbyl radical; R6 is a linear or branched aliphatic C1-20-hydrocarbyl group, SR9 or OR9; R6′ is a linear or branched aliphatic C1-20-hydrocarbyl group, SR9′ or OR9′; with the proviso that neither R6 or R6′ represents a group having a quaternary carbon atom directly attached to the indenyl ring; R9 is a C1-20-hydrocarbyl group; R9′ is a C1-20-hydrocarbyl group; Ar is a C6-12-aryl or C5-12-heteroaryl group optionally carrying one or more substituents R8; Ar′ is a C6-12-aryl or C5-12-heteroaryl group optionally carrying one or more substituents R8′; each R8 is a C1-20-hydrocarbyl group; each R8′ is a C1-20-hydrocarbyl group; and wherein at least two of R2 and R2′; R6 and R6′; or Ar and Ar′ are the same; and (ii) a cocatalyst comprising a compound of a group 13 metal, e.g. Al or boron.

    Abstract translation: 固体颗粒形式的催化剂,其不含外部载体材料,其包含(i)其中M为锆或铪的式(I)配合物; 每个X是σ配体; L是选自-R'2C-,-R'2C-CR'2-,-R'2Si-,-R'2Si-SiR'2-,-R'2Ge-的二价桥,其中每个R' 独立地为氢原子,C 1-20烷基,三(C 1-20烷基)甲硅烷基,C 6-20 - 芳基,C 7-20 - 芳基烷基或C 7-20 - 烷基芳基; R2是C1-20-烃基; R2'是C1-20-烃基; R6是直链或支链脂族C 1-20烃基,SR 9或OR 9; R6'是直链或支链脂族C 1-20烃基,SR 9'或OR 9'; 条件是R6或R6'都不表示具有与茚基环直接连接的季碳原子的基团; R9为C1-20-烃基; R9'是C1-20-烃基; Ar是任选携带一个或多个取代基R 8的C 6-12 - 芳基或C 5-12 - 杂芳基; Ar'是任选携带一个或多个取代基R 8'的C 6-12 - 芳基或C 5-12 - 杂芳基; 每个R 8是C 1-20烃基; 每个R 8'是C 1-20烃基; 并且其中R2和R2'中的至少两个; R6和R6'; 或Ar和Ar'相同; 和(ii)包含第13族金属的化合物的助催化剂,例如 Al或硼。

    CATALYST SYSTEM FOR PRODUCING POLYETHYLENE COPOLYMERS IN A HIGH TEMPERATURE SOLUTION POLYMERIZATION PROCESS

    公开(公告)号:US20200079887A1

    公开(公告)日:2020-03-12

    申请号:US16469617

    申请日:2017-12-12

    Applicant: BOREALIS AG

    Abstract: Catalyst system for producing ethylene copolymers in a high temperature solution process, the catalyst system comprising (i) a metallocene complex of formula (I) wherein: M is Hf or a mixture with Zr, provided that more than 50% by moles of the complex of Formula (I) has M=Hf; X is a sigma ligand; R are the same or different from each other and can be saturated linear or branched C1-C10 alkyl, C6-C10 aryl, C4-C10 heteroaryl, C6-C20 alkylaryl or C6-C20 arylalkyl groups, which can optionally contain up to 2 heteroatoms or silicon atoms; R1 is a C6-C10 aryl or C6-C20 alkylaryl group optionally containing up to 2 heteroatoms or silicon atoms or a C4-C10 heteroaryl group; R2 is a C4-C20 cycloalkyl group, optionally carrying alkyl substituents in beta-positions, of formula (II) in which R′ can be the same or can be different from each other and can be hydrogen or is defined as R and n is 1 to 17 (ii) a boron containing cocatalyst

    CATALYSTS
    18.
    发明申请
    CATALYSTS 审中-公开

    公开(公告)号:US20190308995A1

    公开(公告)日:2019-10-10

    申请号:US16461517

    申请日:2017-11-17

    Applicant: BOREALIS AG

    Abstract: A complex of formula (I) wherein M is zirconium or hafnium; each X independently is a sigma ligand; L is a divalent bridge selected from —R′2C—, —R′2C—CR′2—, —R′2Si—, —R′2Si—SiR′2—, —R′2Ge—, wherein each R′ is independently a hydrogen atom or a C1-C20-hydrocarbyl group optionally containing one or more silicon atoms or heteroatoms of Group 14-16 of the periodic table or fluorine atoms, and optionally two R′ groups taken together can form a ring; R2 and R2′ are each independently a C1-C20 hydrocarbyl group, —OC1-hydrocarbyl group or —SC1-20 hydrocarbyl group; R5 is a —OC1-20 hydrocarbyl group or —SC1-20 hydrocarbyl group, said R5 group being optionally substituted by one or more halo groups; R5′ is hydrogen or a C1-20 hydrocarbyl group; —OC1-20 hydrocarbyl group or —SC1-20 hydrocarbyl group; said C1-20 hydrocarbyl group being optionally substituted by one or more halo groups; R6 and R6′ are each independently a C1-20 hydrocarbyl group; —C1-20 hydrocarbyl group or —SC1-20 hydrocarbyl group; each R1 and R1′ are independently —CH2Rx wherein Rx are each independently H, or a C1-20 hydrocarbyl group, optionally containing heteroatoms.

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