公开(公告)号：US09982120B2

公开(公告)日：2018-05-29

申请号：US15117320

申请日：2015-02-04

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： Takeshi Nakajima ,  Kazuhiko Sakai ,  Minoru Kuriyama ,  Masanori Maruyama

IPC: C08L23/12 ,  C08F210/06 ,  C08J5/18 ,  C08L23/10 ,  C08K5/00 ,  C08L23/16

CPC classification number: C08L23/12 ,  C08F210/06 ,  C08J5/18 ,  C08J2323/10 ,  C08J2323/12 ,  C08J2423/08 ,  C08K5/0083 ,  C08L23/10 ,  C08L23/16 ,  C08L2203/16 ,  C08L2203/30 ,  C08L2205/02 ,  C08L2207/02 ,  C08L2314/02 ,  C08L23/08 ,  C08F210/16 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/26 ,  C08F2/001

Abstract: The present disclosure relates to a heterophasic polypropylene compositions comprising 78-85% by weight of a propylene homopolymer or copolymer matrix with up to 2.0% by weight of ethylene units, 15-22% by weight of an elastomeric ethylene-propylene copolymer and a clarifying agent. The composition has an intrinsic viscosity of the xylene soluble fraction at room temperature of from 0.5 to 1.5 dl/g and a melt flow rate (230° C., 2.16 kg) of 0.5 to 10 g/10 min. The compositions of the present disclosure can be used to prepare sheets for thermoforming applications.

公开(公告)号：US11319431B2

公开(公告)日：2022-05-03

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: C08L23/16 ,  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.