公开(公告)号：US20210040254A1

公开(公告)日：2021-02-11

申请号：US16966089

申请日：2019-01-30

Applicant: BOREALIS AG

Inventor： Auli NUMMILA-PAKARINEN ,  Tua SUNDHOLM ,  Hannu Kalervo TAHVANAINEN ,  Valeria POLIAKOVA

IPC: C08F255/10 ,  C08F210/16 ,  C08F210/08 ,  C08F222/06

Abstract: The invention provides a multimodal linear low density polyethylene (LLDPE) which has been grafted with an acidic grafting agent to form a grafted LLDPE (g-LLDPE), wherein said LLDPE is a copolymer of ethylene and at least one α-olefin comonomer and wherein said LLDPE has an MFR2 of 0.05 to 50 g/10 min, preferably 0.05 to 10 g/10 min.

公开(公告)号：US20160280900A1

公开(公告)日：2016-09-29

申请号：US15026741

申请日：2014-12-18

Applicant: BOREALIS AG

Inventor： Jouni PURMONEN ,  Leif LEIDEN ,  Norbert JANSEN ,  Tua SUNDHOLM

IPC: C08L23/14 ,  F16L58/18 ,  F16L13/02

CPC classification number: C08L23/14 ,  C08L2203/18 ,  C08L2205/025 ,  C08L2207/02 ,  C08L2310/00 ,  F16L13/0272 ,  F16L58/181 ,  C08L23/16 ,  C08L51/06 ,  C08L23/12 ,  C08L23/0815

Abstract: Heterophasic polypropylene composition having an MFR2 (2.16 kg, 230° C.) of 3.0 to 7.0 g/10 min, determined according to ISO 1 133, and a Vicat A50 softening temperature of more than 110° C. measured according to DIN EN ISO 306 at 10 N on an injection moulded test specimen with the dimensions of 80×10×4 mm3 and a heat rate of 50° C./h including a propylene random copolymer matrix phase (A), and an ethylene-propylene copolymer rubber phase (B) dispersed within the matrix phase, wherein the heterophasic polypropylene composition has a fraction soluble in p-xylene at 23° C. (XCS fraction), and a fraction insoluble in p-xylene at 23° C. (XCU fraction), said heterophasic polypropylene composition having a tensile modulus of 450 to 850 MPa when measured according to ISO 527-2 at 23° C. temperature with an elongation rate of 1 mm/min on injection moulded test specimens type 1A prepared according to ISO 1873-2; and a normalized maleic anhydride index IMA equal to or less than 0.036 μm−1.

Abstract translation: 根据ISO 1 133测定的具有3.0-7.0g / 10min的MFR 2（2.16kg，230℃）和大于110℃的Vicat A50软化温度的多相聚丙烯组合物根据DIN EN ISO 306在10N，尺寸为80×10×4mm 3，加热速率为50℃/ h的注射成型试样，包括丙烯无规共聚物基质相（A）和乙烯 - 丙烯共聚物橡胶相 （B）分散在基质相中，其中多相聚丙烯组合物在23℃下具有可溶于对二甲苯的馏分（XCS馏分）和在23℃下不溶于对二甲苯的馏分（XCU馏分）， 所述多相聚丙烯组合物当根据ISO 527-2在23℃温度下测量时的拉伸模量为450-850MPa，拉伸速率为1mm / min，根据ISO 1873-2制备的注塑试样1A ; 和归一化的马来酸酐指数IMA等于或小于0.036μm-1。