公开(公告)号：US09670346B2

公开(公告)日：2017-06-06

申请号：US15126512

申请日：2015-12-09

申请人： MITSUI CHEMICALS, INC.

发明人： Keita Itakura ,  Akiko Odawara ,  Satoru Kinouchi ,  Tateo Takashima ,  Ryoichi Tsunori ,  Tomoaki Matsugi ,  Yasushi Yanagimoto ,  Tatsuya Nakamura

IPC分类号： C08F210/16 ,  C08L23/10 ,  C08L23/14 ,  C08L23/12 ,  C08F255/02

CPC分类号： C08L23/12 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65927 ,  C08F210/16 ,  C08F255/02 ,  C08F290/042 ,  C08L23/08 ,  C08L23/10 ,  C08L23/14 ,  C08L23/16 ,  C08F210/02 ,  C08L51/06 ,  C08F10/06 ,  C08F4/64048 ,  C08F4/6492 ,  C08F4/6543 ,  C08F4/6565 ,  C08F110/02 ,  C08F2500/02 ,  C08F2500/03 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/17 ,  C08F210/08

摘要： An object of the present invention is to provide a propylene-based resin composition capable of providing a molded article having an excellent balance between rigidity and impact resistance. The object can be achieved by a propylene-based resin composition including an olefin-based resin characterized by including a grafted ethylene-based copolymer having an ethylene polymer as a side chain.

公开(公告)号：US11292899B2

公开(公告)日：2022-04-05

申请号：US16620152

申请日：2018-06-29

申请人： MITSUI CHEMICALS, INC. ,  PRIME POLYMER CO., LTD.

发明人： Yasuhiro Kai ,  Naoya Noda ,  Kenji Michiue ,  Keita Itakura

IPC分类号： C08F10/06 ,  C08F210/06 ,  C08F210/16 ,  C08L23/12 ,  C07F7/28 ,  C08F110/06

摘要： An object of the present invention is to provide a highly heat resistant and highly rigid propylene-based polymer having unprecedentedly high stereoregularity. The propylene-based polymer of the present invention satisfies requirements (1) to (4) and preferably requirement (5): (1) an average meso chain length is 800 to 100,000; (2) a MFR is 0.5 to 1,000 g/10 minutes; (3) a ratio of Mw to Mn, Mw/Mn, as measured by GPC is 4.2 to 20; (4) when the ratio of a component which elutes at a temperature of 122° C. or more as measured by temperature rising elution fractionation (TREF) is A % by weight and the melt flow rate of the requirement (2) is B g/10 minutes, 100≥A≥20×EXP(−0.01×B); (5) an amount of a component soluble in n-decane at 23° C. is 0.01 to 2% by weight.

公开(公告)号：US09771448B2

公开(公告)日：2017-09-26

申请号：US15128012

申请日：2015-03-26

申请人： MITSUI CHEMICALS, INC.

发明人： Yasushi Yanagimoto ,  Tomoaki Matsugi ,  Akihiko Iwashita ,  Tatsuya Nakamura ,  Keita Itakura ,  Ryoichi Tsunori

IPC分类号： C08F290/04 ,  C08F293/00

CPC分类号： C08F290/042 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65927 ,  C08F255/02 ,  C08F290/04 ,  C08F293/00 ,  C08F2420/01 ,  C08F2420/02 ,  C08L51/06 ,  C08L55/00 ,  C08F110/06 ,  C08F4/6543 ,  C08F4/6565 ,  C08F210/06 ,  C08F210/16 ,  C08F2500/17 ,  C08F2500/20 ,  C08F210/08

摘要： An olefin resin having requirements (I) to (VI) is provided: (I) a grafted olefin polymer containing a main chain with an ethylene/α-olefin copolymer and a side chain with a propylene polymer; (II) the ratio P wt % of propylene polymer is from 5 to 60 wt %; (III) when the ratio of the amount of a component(s) having a peak temperature of a differential elution curve as measured by CFC using o-dichlorobenzene of less that 65° C., to the amount of (β) taken as E wt %, the value a represented by an equation (Eq-1), is 1.4 or more; (IV) the melting point (Tm) is 120 to 165° C. and the glass transition temperature (Tg) is −80 to −30° C., as measured by DSC; (V) the hot xylene-insoluble content is less than 3 wt %; and, (VI) the limiting viscosity as measured in decalin at 135° C. is 0.5 to 5.0 dl/g.