PROCESS FOR THE PRODUCTION OF PROPYLENE RANDOM COPOLYMERS FOR INJECTION MOULDING APPLICATIONS
    2.
    发明申请
    PROCESS FOR THE PRODUCTION OF PROPYLENE RANDOM COPOLYMERS FOR INJECTION MOULDING APPLICATIONS 有权
    用于注射成型应用的丙烯随机共聚物生产工艺

    公开(公告)号:US20120088086A1

    公开(公告)日:2012-04-12

    申请号:US13138489

    申请日:2010-03-01

    摘要: Process for the production of polypropylene random copolymers containing 2.5 to 5.0 wt % of ethylene as comonomer and having an MFR2 in accordance with ISO 1 133 (230° C., 2.16 kg load) of ≧25 g/10 min to 100 g/10 min and a hexane-solubles content, determined according to FDA CFR 21 §177.1520 below 5 wt %, said process comprising the step of polymerizing propylene and ethylene in the presence of a catalyst system comprising (i) a Ziegler-Natta procatalyst which contains a trans-esterification product of a lower alcohol and a phthalic ester as internal donor and (ii) an organometallic cocatalyst and (iii) an external donor represented by formula (I) or (II) Si(OCH2CH3)3(NR1R2) (I) or Si(OCH3)2(CH3(cyclohexyl) (II) wherein R1 and R2 can be the same or different and represent a hydrocarbon group having 1 to 12 carbon atoms, the polypropylene random copolymers with a low level of odour and taste themselves and their use for injection moulding applications, preferably for thin-wall packaging for food packaging in non-cooking applications and for medical packaging.

    摘要翻译: 含有2.5-5.0重量%乙烯作为共聚单体并具有根据ISO 1 133(230℃,2.16kg负荷)的MFR 2为≥25g/ 10min至100g / 10的聚丙烯无规共聚物的方法 min和根据FDA CFR 21§177.1520低于5wt%测定的己烷可溶物含量,所述方法包括在催化剂体系存在下聚合丙烯和乙烯的步骤,所述催化剂体系包含(i)齐格勒 - 纳塔前催化剂,其含有 作为内给体的低级醇和邻苯二甲酸酯的酯交换反应产物和(ii)有机金属助催化剂和(iii)由式(I)或(II)Si(OCH 2 CH 3)3(NR 1 R 2)(I)表示的外给体, 或Si(OCH 3)2(CH 3(环己基)(II))其中R 1和R 2可以相同或不同,表示具有1至12个碳原子的烃基,本身具有低水平气味和味道的聚丙烯无规共聚物和 它们用于注塑应用,优选用于薄壁包装 在非烹饪应用和医疗包装中的食品包装老化。

    Process for the production of propylene random copolymers for injection moulding applications
    4.
    发明授权
    Process for the production of propylene random copolymers for injection moulding applications 有权
    用于注塑成型应用的丙烯无规共聚物的生产方法

    公开(公告)号:US08822021B2

    公开(公告)日:2014-09-02

    申请号:US13138489

    申请日:2010-03-01

    摘要: Process for the production of polypropylene random copolymers containing 2.5 to 5.0 wt % of ethylene as comonomer and having an MFR2 in accordance with ISO 1 133 (230° C., 2.16 kg load) of ≧25 g/10 min to 100 g/10 min and a hexane-solubles content, determined according to FDA CFR 21 §177.1520 below 5 wt %, said process comprising the step of polymerizing propylene and ethylene in the presence of a catalyst system comprising (i) a Ziegler-Natta procatalyst which contains a trans-esterification product of a lower alcohol and a phthalic ester as internal donor and (ii) an organometallic cocatalyst and (iii) an external donor represented by formula (I) or (II) Si(OCH2CH3)3(NR1R2) (I) or Si(OCH3)2(CH3(cyclohexyl) (II) wherein R1 and R2 can be the same or different and represent a hydrocarbon group having 1 to 12 carbon atoms, the polypropylene random copolymers with a low level of odor and taste themselves and their use for injection molding applications, preferably for thin-wall packaging for food packaging in non-cooking applications and for medical packaging.

    摘要翻译: 含有2.5-5.0重量%乙烯作为共聚单体并具有根据ISO 1 133(230℃,2.16kg负荷)的MFR 2为≥25g/ 10min至100g / 10的聚丙烯无规共聚物的方法 min和根据FDA CFR 21§177.1520低于5wt%测定的己烷可溶物含量,所述方法包括在催化剂体系存在下聚合丙烯和乙烯的步骤,所述催化剂体系包含(i)齐格勒 - 纳塔前催化剂,其含有 作为内给体的低级醇和邻苯二甲酸酯的酯交换反应产物和(ii)有机金属助催化剂和(iii)由式(I)或(II)Si(OCH 2 CH 3)3(NR 1 R 2)(I)表示的外给体, 或Si(OCH 3)2(CH 3(环己基)(II))其中R 1和R 2可以相同或不同,表示具有1至12个碳原子的烃基,本身具有低水平气味和味道的聚丙烯无规共聚物和 它们用于注塑应用,优选用于薄壁包装 用于非烹饪应用和医疗包装中的食品包装。