Invention Application
- Patent Title: POLYPROPYLENE COMPOSITION AND MOLDED ARTICLE
-
Application No.: US16981217Application Date: 2019-03-15
-
Publication No.: US20210017367A1Publication Date: 2021-01-21
- Inventor: TAKESHI TSUKAHARA , NOBUYUKI TSURUMI , SHITOSHI KANNO , KUNIO YAMAMOTO , TAKESHI NAKAJIMA
- Applicant: BASELL POLIOLEFINE ITALIA S.R.L.
- Applicant Address: IT MILANO
- Assignee: BASELL POLIOLEFINE ITALIA S.R.L.
- Current Assignee: BASELL POLIOLEFINE ITALIA S.R.L.
- Current Assignee Address: IT MILANO
- Priority: JP2018-050025 20180316
- International Application: PCT/JP2019/012287 WO 20190315
- Main IPC: C08L23/14
- 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 ) .
Public/Granted literature
- US11339280B2 Polypropylene composition and molded article Public/Granted day:2022-05-24
Information query