公开(公告)号：US20210253837A1

公开(公告)日：2021-08-19

申请号：US17253435

申请日：2019-06-19

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： TAKESHI NAKAJIMA ,  KAZUHIKO SAKAI ,  KUNIO YAMAMOTO ,  MASASHI UCHIDA

IPC: C08L23/12

Abstract: A polypropylene composition made from or containing (i) component (1) made from or containing a propylene homopolymer or copolymer containing 0 to 0.5% by weight of an ethylene-derived unit; (ii) component (2) made from or containing an ethylene/propylene copolymer containing 15 to 30% by weight of an ethylene-derived unit; and (iii) 0.01 to 1.0 parts by weight of a crystal nucleating agent based on a total of 100 parts by weight of component (1) and component (2); wherein 1) the Mw/Mn value of xylene insolubles (XI) is in the range of 6 to 20, 2) the weight ratio of component (1) to component (2) is in the range of 82:18 to 90:10, 3) the intrinsic viscosity of xylene solubles (XSIV) is in the range of 2.5 to 3.4 dl/g, 4) the MFR (at 230° C. under a load of 2.16 kg) is in the range of 3 to 10 g/10 min.

公开(公告)号：US20210388192A1

公开(公告)日：2021-12-16

申请号：US17285838

申请日：2019-10-17

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： TAKESHI NAKAJIMA ,  KUNIO YAMAMOTO ,  MASASHI UCHIDA

IPC: C08L23/12

Abstract: A polypropylene composition made from or containing: (i) component (1) made from or containing a propylene homopolymer or copolymer containing 0 to 0.5% by weight of an ethylene-derived unit; and (ii) component (2) made from or containing an ethylene/propylene copolymer containing 65 to 85% by weight of an ethylene-derived unit; wherein 1) the Mw/Mn value of xylene insolubles (XI) of the polypropylene composition as measured by GPC is in the range of 6 to 20, 2) the weight ratio of component (1) to component (2) is in the range of 70:30 to 85:15, 3) the intrinsic viscosity of xylene solubles (XSIV) of the polypropylene composition is in the range of 1.0 to 3.0 dl/g, and 4) the MFR (at 230° C. under a load of 2.16 kg) of the polypropylene composition is in the range of 3 to 15 g/10 min.

公开(公告)号：US20210017367A1

公开(公告)日：2021-01-21

申请号：US16981217

申请日：2019-03-15

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： TAKESHI TSUKAHARA ,  NOBUYUKI TSURUMI ,  SHITOSHI KANNO ,  KUNIO YAMAMOTO ,  TAKESHI NAKAJIMA

IPC: C08L23/14 ,  C08L23/08

Abstract: A polypropylene composition made from or containing: (i) component (1) made from or containing a propylene/ethylene copolymer containing more than 1.5% by weight and not more than 4% by weight of an ethylene-derived unit; (ii) component (2) made from or containing an ethylene/propylene copolymer containing 65 to 87% by weight of an ethylene-derived unit; and (iii) 0.01 to 0.5 parts by weight of a crystal nucleating agent, based on a total of 100 parts by weight of component (1) and component (2); wherein the polypropylene composition has 1) weight ratio of component (1) to component (2) is in the range of 80:20 to 90:10, 2) intrinsic viscosity of xylene solubles (XSIV) in the range of 0.8 to 1.4 dl/g, 3) MFR (at 230° C. under a load of 2.16 kg) in the range of 5 to 15 g/10 min., 4) viscosity ratio in the range of 0.40 to 0.80 where Viscosity   ratio = XSIV Intrinsic   viscosity   of   component   ( 1 ) .

公开(公告)号：US20170198125A1

公开(公告)日：2017-07-13

申请号：US15321321

申请日：2015-06-08

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： TAKESHI TSUKAHARA ,  NOBUYUKI TSURUMI ,  SHITOSHI KANNO ,  KUNIO YAMAMOTO ,  TAKESHI NAKAJIMA

IPC: C08L23/12

Abstract: The present disclosure generally relates to a heterophasic polypropylene composition comprising 68-76% by weight of a propylene homopolymer or copolymer matrix, 24-32% by weight of an ethylene-propylene copolymer, and a nucleating agent. In some embodiments, the composition has an intrinsic viscosity of the xylene soluble (XSIV) fraction at room temperature of up to 1.3 dl/g and a melt flow rate (230° C., 2.16 kg) of 30 to 70 g/10 min. The compositions disclosed herein can be used in molded articles, using techniques such as thin wall injection molding, that are endowed with excellent impact behavior.