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公开(公告)号：KR860002050B1
公开(公告)日：1986-11-20
申请号：KR820005115
申请日：1982-11-12
Applicant: MITSUI PETROCHEMICAL IND
Inventor： KASHIWA NORIO , TOYOTA AKINORI
IPC: C08F4/00 , C08F4/42 , C08F4/60 , C08F4/64 , C08F10/06 , C08F210/06 , C08F297/00 , C08F297/08
Abstract: This invention relates to propylene block copolymer which has excellent mechanical strength, esp. at low temp.. Total preparing process is composed of two steps. In the first step, propylene containing 0-5 mole% of other olefin is polymerized. The first step catalyst is composed of solid titanium catalyst, organic aluminium compd. and organo silicon compd.. In the second step, propylene, ethylene and other olefin are polymerized to form a copolymer with first step product. This process produces propylene block copolymer in high catalytic efficiency.
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公开(公告)号：EP0324856A4
公开(公告)日：1989-03-22
申请号：EP87907676
申请日：1987-11-19
Applicant: MITSUI PETROCHEMICAL IND
Inventor： TSUTSUI TOSHIYUKI , TOYOTA AKINORI , KASHIWA NORIO
CPC classification number: C08F10/00 , C08F4/65912 , C08F4/6592 , Y10S526/943 , C08F4/6428
Abstract: A process for polymerizing olefin, which comprises using a catalyst composed of a compound of transition metal of the group IVB of the periodic table, such as zirconium, aluminoxane formed from trimethylaluminum, and aluminoxane wherein at least one hydrocarbyl group other than n-alkyl group is bound to the aluminum atom. This process enables polymerization of olefin with excellent polymerization activity even when the amount of aluminoxane prepared from expensive trimethylaluminum is reduced. The produced polymer has a comparatively large molecular weight.
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公开(公告)号：EP0314797A4
公开(公告)日：1989-09-19
申请号：EP88903383
申请日：1988-04-19
Applicant: MITSUI PETROCHEMICAL IND
Inventor： KIOKA MAMORU , KASHIWA NORIO , TSUTSUI TOSHIYUKI , TOYOTA AKINORI
IPC: C08F4/62 , C08F4/642 , C08F4/659 , C08F4/6592 , C08F10/00
CPC classification number: C08F10/00 , C08F4/65912 , C08F4/65916 , C08F4/6592 , Y10S526/904 , Y10S526/943 , C08F4/6028
Abstract: A process for polymerizing or copolymerizing an olefin in the presence of an olefin polymerization catalyst prepared from: (A) a compound of a transition metal belonging to the group IVB of the periodic table, or (A') a solid catalyst component comprising a compound of a transition metal belonging to the group IVB of the periodic table supported on a particulate carrier; (B) aluminoxane; and (C) an organoaluminum compound represented by general formula (I): R1mAl(OR2)3-m or (II): R3nAl[OSiR43]3-n (wherein R1, R2 and R3 each represents a hydrocarbyl group, R4 represents a hydrocarbyl group, an alkoxy group or an aryloxy group, and m and n each represents a positive number of 0
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公开(公告)号：EP0287666A4
公开(公告)日：1988-11-07
申请号：EP87906209
申请日：1987-09-24
Applicant: MITSUI PETROCHEMICAL IND
Inventor： TSUTSUI TOSHIYUKI , TOYOTA AKINORI , KASHIWA NORIO
IPC: C08F4/64 , C08F4/642 , C08F4/659 , C08F4/6592 , C08F10/00 , C08F110/02 , C08F210/16 , C08F210/18
CPC classification number: C08F210/16 , C08F4/65912 , C08F4/65916 , C08F4/6592 , C08F4/65922 , C08F10/00 , C08F110/02 , C08F210/18 , C08F4/6428 , C08F2500/03 , C08F2500/12 , C08F2500/18 , C08F210/06 , C08F210/14 , C08F2500/08 , C08F2500/25
Abstract: A process for polymerizing olefin which comprises using a catalyst comprising a transition metal catalyst component, an aluminoxane component, and an organo-aluminum component. In this process, a catalyst containing a reduced amount of the above-described aluminoxane is used to attain an excellent polymerization activity. This process affords a polymer with a narrow molecular weight distribution, while it affords an olefin copolymer having a narrow molecular weight distribution and a narrow composition distribution in a copolymerization of two or more olefins.
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公开(公告)号：EP0276323A4
公开(公告)日：1989-11-07
申请号：EP87904741
申请日：1987-07-20
Applicant: MITSUI PETROCHEMICAL IND
Inventor： KIOKA MAMORU , TOYOTA AKINORI , KASHIWA NORIO
IPC: C08F4/64 , C08F4/42 , C08F4/60 , C08F10/06 , C08F210/06 , C08F297/08 , C08L23/10 , C08L23/16
CPC classification number: C08F297/083 , C08L23/10 , C08L23/16 , C08L2205/02 , C08L2666/04
Abstract: A process for preparing a propylene copolymer having excellent flow properties with an MFR value of 10 g/10 min or above. This process comprises a first polymerization step composed of at least two stages and a subsequent polymerization step. An important point in this process is control of the limiting viscosity of a crystalline propylene polymer obtained in the first stage of the first polymerization step and that of a crystalline polymer obtained in the final stage.
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Patent Agency Ranking
公开(公告)号：EP0279863A4
公开(公告)日：1988-08-29
申请号：EP87905645
申请日：1987-08-26
Applicant: MITSUI PETROCHEMICAL IND
Inventor： KIOKA MAMORU , TOYOTA AKINORI , KASHIWA NORIO , TSUTSUI TOSHIYUKI
IPC: C08F4/64 , C08F4/642 , C08F4/659 , C08F4/6592 , C08F10/00 , C08F110/02
CPC classification number: C08F10/00 , C08F4/65912 , C08F4/65916 , C08F4/6592 , C08F4/65925 , C08F110/02 , C08F2500/03 , C08F2500/18 , C08F2500/24
Abstract: The catalyst for polymerizing alpha-olefin comprises a component of a carrier having provided thereon a transition metal compound and an aluminoxane. The carrier is one having been treated with an organometallic compound, a halogen-containing silicon compound or an aluminoxane or an olefin prepolymer prepared by using these two components. The catalyst enables production of a spherical polymer having good particle size distribution and excellent bulk density when employed in slurry polymerization process or gas phase polymerisation process, particularly in the latter process. In addition, the catalyst provides a polymer having a narrow molecular weight distribution and, when applied to copolymerization of two or more olefins, it shows such an excellent polymerization activity that it provides an olefin copolymer having a narrow molecular weight distribution and a narrow composition distribution.
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公开(公告)号：CA2091963C
公开(公告)日：2000-01-18
申请号：CA2091963
申请日：1993-03-18
Applicant: YAZAKI CORP , MITSUI PETROCHEMICAL IND
Inventor： YAMAMOTO SANEHIRO , SUGIYAMA KAZUTO , TOYOTA AKINORI , AMIMOTO YOSHIKATSU , IKEJIRI FUMITOSHI , KATO TETSUO , KANDA MASAHIRO
IPC: C08K5/13 , C08K5/36 , C08K5/372 , C08L23/26 , C08L77/00 , C08L77/06 , C08L77/10 , H01B3/30 , H01R13/46 , C08L33/02 , C08L51/06 , C08L51/08
Abstract: The resin composition of the invention comprises as resin components specific aromatic polyamide (A) in an amount of 50 to 85 o by weight, a specific graft-modified polymer (B) in an amount of 10 to 40 % by weight and aliphatic polyamide (C) in an amount of 1 to 15 % by weight, and further comprises plural antioxidants comprising a hindered phenol type antioxidant (D) having a molecular weight of not less than 500 and a TGA 10 % weight loss temperature of not lower than 300 .degree.C and a sulfur type antioxidant (E) having a molecular weight of not less than 600 and a TGA 10 o weight loss temperature of not lower than 280 .degree.C. In this resin composition, the total amount of (D) and (E) is in the range of 0.2 to 4 parts by weight per 100 parts by weight of the resin components, and a weight ratio between (D) and (E) is in-the range of 1 : 5 to 5 . 1. The connector of the invention has housing formed from the above-mentioned resin composition. The resin composition of the invention shows excellent heat resistance. The connector of the invention is lightweight and is excellent in heat resistance, water resistance and chemical resistance.
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公开(公告)号：DE3855955T2
公开(公告)日：1997-11-20
申请号：DE3855955
申请日：1988-04-19
Applicant: MITSUI PETROCHEMICAL IND
Inventor： KIOKA MAMORU , KASHIWA NORIO , TSUTSUI TOSHIYUKI , TOYOTA AKINORI
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公开(公告)号：DE3855955D1
公开(公告)日：1997-08-07
申请号：DE3855955
申请日：1988-04-19
Applicant: MITSUI PETROCHEMICAL IND
Inventor： KIOKA MAMORU , KASHIWA NORIO , TSUTSUI TOSHIYUKI , TOYOTA AKINORI
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公开(公告)号：AT154943T
公开(公告)日：1997-07-15
申请号：AT88903383
申请日：1988-04-19
Applicant: MITSUI PETROCHEMICAL IND
Inventor： KIOKA MAMORU , KASHIWA NORIO , TSUTSUI TOSHIYUKI , TOYOTA AKINORI
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