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公开(公告)号：WO2019245058A1
公开(公告)日：2019-12-26
申请号：PCT/JP2019/025266
申请日：2019-06-19
Applicant: BASELL POLIOLEFINE ITALIA S.R.L.
Inventor： NAKAJIMA, Takeshi , SAKAI, Kazuhiko , YAMAMOTO, Kunio , UCHIDA, Masashi
Abstract: Provided is a polypropylene composition having an excellent balance between stiffness and low temperature impact resistance as well as having high flowability and gloss. A polypropylene composition comprising: as component (1), a propylene (co)polymer containing 0 to 0.5% by weight of an ethylene-derived unit; as component (2), an ethylene/propylene copolymer containing 15 to 30% by weight of an ethylene-derived unit; and 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 the polypropylene composition satisfies the following requirements: 1) the Mw/Mn value of xylene insolubles (XI) of the 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 82:18 to 90:10, 3) the intrinsic viscosity of xylene solubles (XSIV) of the composition 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) of the composition is in the range of 3 to 10 g/10 min.
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公开(公告)号：WO2020080555A1
公开(公告)日：2020-04-23
申请号：PCT/JP2019/041813
申请日：2019-10-17
Applicant: BASELL POLIOLEFINE ITALIA S.R.L.
Inventor： NAKAJIMA, Takeshi , YAMAMOTO, Kunio , UCHIDA, Masashi
Abstract: Provided is a polypropylene composition that is capable of giving an injection- molded article having high gloss and excellent balance between stiffness and low temperature impact resistance by maintaining flowability. A polypropylene composition comprising: as component (1), a propylene (co)polymer containing 0 to 0.5% by weight of an ethylene-derived unit; and as component (2), an ethylene/propylene copolymer containing 65 to 85% by weight of an ethylene-derived unit; wherein the polypropylene composition satisfies the following requirements: 1) the Mw/Mn value of xylene insolubles (XI) of the 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 composition is in the range of 1.0to 3.0 dl/g, 4) the MFR (at 230°C under a load of 2.16 kg) of the composition is in the range of 3 to 15 g/10 min.
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公开(公告)号：EP3867285A1
公开(公告)日：2021-08-25
申请号：EP19809195.1
申请日：2019-10-17
Applicant: Basell Poliolefine Italia S.r.l.
Inventor： NAKAJIMA, Takeshi , YAMAMOTO, Kunio , UCHIDA, Masashi
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公开(公告)号：EP3810661A1
公开(公告)日：2021-04-28
申请号：EP19745304.6
申请日：2019-06-19
Applicant: Basell Poliolefine Italia S.r.l.
Inventor： NAKAJIMA, Takeshi , SAKAI, Kazuhiko , YAMAMOTO, Kunio , UCHIDA, Masashi
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