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公开(公告)号：JPH0243242A
公开(公告)日：1990-02-13
申请号：JP19505888
申请日：1988-08-04
Applicant: MITSUI PETROCHEMICAL IND
Inventor： TANAKA MUTSUHIRO , SUGI MASAHIRO
IPC: C08L23/08 , C08J5/18 , C08L23/00 , C08L23/10 , C08L23/12 , C08L23/14 , C08L23/16 , C08L23/18 , C08L53/00
Abstract: PURPOSE:To reduce the diameter of dispersed particles of a rubber component in a formed resin compsn. and to improve heat sealing strength, low-temp. impact resistance and transparency by compounding the specified rubber component in a polypropylene resin. CONSTITUTION:The title polypropylene resin is formed of 50-99wt.% polypropylene resin (A) and 1-50wt.% rubber component (B). As this rubber component, a random copolymer compsn. wherein the following random copolymer (i) and (ii) are incorporated with a wt. ratio in the range of 95:5-20:80 is used. An ethylene random copolymer (i) is one selected from random copolymers of ethylene with a 3-20C alpha-olefin having an ethylene content of 60-95mol% and an MFR (at 230 deg.C) of 0.1-50g/10min and a propylene random copolymer (ii) is one selected from random copolymers of propylene with a 2-20C alpha-olefin except propylene having a propylene content of 60-95mol% and an MFR (at 230 deg.C) of 0.1-50g/10min.
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公开(公告)号：JPS6243444B2
公开(公告)日：1987-09-14
申请号：JP7737081
申请日：1981-05-23
Applicant: MITSUI PETROCHEMICAL IND
Inventor： KATO AKIFUMI , SUGA MICHIHARU , SUGI MASAHIRO
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公开(公告)号：JPS61246061A
公开(公告)日：1986-11-01
申请号：JP8747885
申请日：1985-04-25
Applicant: MITSUI PETROCHEMICAL IND
Inventor： SUGI MASAHIRO , TOMINARI KENICHI , NAKAGAWA TAKASHI
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公开(公告)号：JPH06192506A
公开(公告)日：1994-07-12
申请号：JP34216992
申请日：1992-12-22
Applicant: MITSUI PETROCHEMICAL IND
Inventor： YAMAGUCHI MASAYOSHI , ISHIMOTO AKIO , WAKUMOTO HIROSHI , SUGI MASAHIRO
Abstract: PURPOSE:To obtain a polypropylene composition having excellent rigidity, heat resistance and impact resistance, especially impact resistance at low temperature. CONSTITUTION:A polypropylene composition comprises (A) 95-55 pts.wt. polypropylene and (B-1) 5-45 pts.wt. ethylene 1-butene random copolymer having 15-25mol% constituent unit derived from 1-butene or (B-2) 5-45 pts.wt. ethylene 1-octene random copolymer having 8-20mol% constituent unit derived from 1-octene. (B-1) and (B-2) have 1.5-3.5 di/g intrinsic viscosity [gamma] in decalin, (B-1) has C-NMR method.
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公开(公告)号：JPH03203941A
公开(公告)日：1991-09-05
申请号：JP34459589
申请日：1989-12-29
Applicant: MITSUI PETROCHEMICAL IND
Inventor： SUGI MASAHIRO
IPC: C08L23/08 , C08F210/16 , C08L23/00
Abstract: PURPOSE:To obtain a compound useful for various films, having excellent mechanical strength, electrical characteristics, filler packing properties, flexibility and extrusion moldability, comprising two kinds of low crystalline ethylene 1-butene copolymers prepared by using a vanadium-based catalyst. CONSTITUTION:A composition which comprises (A) 30-65wt.% ethylene 1-butene copolymers having 85-92mol% ethylene content and 5-30% crystallinity by X-ray and (B) 70-35wt.% ethylene 1-butene copolymers having 90-95mol% ethylene content and 10-40% crystallinity by X-ray which are prepared by using a vanadium based catalyst wherein a ratio of intrinsic viscosity etaA of component A and intrinsic viscosity of etaB is in a range of 3
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Patent Agency Ranking
公开(公告)号：JPH0324140A
公开(公告)日：1991-02-01
申请号：JP15921089
申请日：1989-06-21
Applicant: MITSUI PETROCHEMICAL IND
Inventor： TANAKA MUTSUHIRO , SUGI MASAHIRO , KINOSHITA KENJIRO
Abstract: PURPOSE:To obtain a resin composition excellent in heat sealing strength, low- temperature impact resistance and transparency by mixing a polypropylene resin composition with a specified random copolymer composition. CONSTITUTION:A resin composition comprising 50-99wt.% polypropylene resin and 1-50wt.% rubber component comprising a random copolymer composition containing a random ethylene copolymer (i) selected from among random ethylene/3-20C alpha-olefin copolymers of an ethylene content of 60-95mol% and an MFR of 0.1-50g/10min (at 230 deg.C) and a random 1-butene copolymer (ii) selected from among random copolymers of 1-butene with a 2-20C alpha-olefin having a 1-butene content of 60-99mol% and an MFR of 0.1-50g/10min (at 230 deg.C) in a weight ratio in the range of 95:5-5:95.
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公开(公告)号：JPH02208339A
公开(公告)日：1990-08-17
申请号：JP2842589
申请日：1989-02-07
Applicant: MITSUI PETROCHEMICAL IND
Inventor： TANAKA MUTSUHIRO , SUGI MASAHIRO
Abstract: PURPOSE:To make it possible to form a highly transparent blow molding of polypropylene resin excellent in low-temperature shock resistance, transparency, surface gloss and color development by mixing a polypropylene resin with a specified rubber component. CONSTITUTION:A single-layer or multi-layer highly transparent blow molding formed from a polypropylene resin composition comprising 50-99wt.% polypropylene resin and 1-50wt.% rubber component. The rubber component is an amorphous or lowly crystalline copolymer composition comprising an amorphous or lowly crystalline ethylene copolymer (i) selected from among amorphous and lowly crystalline copolymers of an ethylene content of 60-95mol% and an MFR (230 deg.C) of 0.1-50g/10min and an amorphous or lowly crystalline propylene copolymer (ii) selected from among amorphous and lowly crystalline copolymers of propylene with a 2-20C alpha-olefin of a propylene content of 60-95mol% and an MFR (230 deg.C) of 0.1-50g/10min in a weight ratio of component (i) to component (ii) of 95:5-20:80.
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公开(公告)号：JPH02135244A
公开(公告)日：1990-05-24
申请号：JP28923488
申请日：1988-11-16
Applicant: MITSUI PETROCHEMICAL IND
Inventor： SUGI MASAHIRO , TANAKA MUTSUHIRO
Abstract: PURPOSE:To obtain the title composition excellent in transparency, low- temperature impact resistance, low-temperature heat sealability, heat seal strength etc., by blending a highly crystalline propylene polymer with a specific propylene-based copolymer. CONSTITUTION:The objective composition comprising (A) 40-95 (pref. 50-90)wt.% of a highly crystalline propylene polymer (or a propylene copolymer containing
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公开(公告)号：JPS62131044A
公开(公告)日：1987-06-13
申请号：JP27076585
申请日：1985-12-03
Applicant: MITSUI PETROCHEMICAL IND
Inventor： SUGI MASAHIRO , TOMINARI KENICHI
IPC: C08L23/08 , C08J5/18 , C08L7/00 , C08L21/00 , C08L23/00 , C08L23/10 , C08L23/14 , C08L23/16 , C08L23/26 , C08L53/00 , C08L101/00
Abstract: PURPOSE:To provide the titled pompsn. which gives a film having excellent moldability, flexibility, stretchability and heat resistance, by blending a specified alpha-olefin random copolymer with a thermoplastic olefin elastomer and a thermoplastic styrene elastomer. CONSTITUTION:A thermoplastic polymer compsn. consists of (i) 15-50wt% ethylene/alpha-olefin random copolymer (A) having a crystallinity of 0-50% and an ethylene content of 55-95% and/or propylene/alpha-olefin random copolymer (B) having a crystallinity of 0-50% and a propylene content of 55-85mol%, (ii) 20-55wt% thermoplastic olefin elastomer (C) partially crosslinked by heat- treating 40-90pts.wt. peroxide-crosslinkable olefin copolymer rubber (a) and 60-10pts.wt. peroxide-decomposable olefin resin (b) and (iii) 20-50wt% arom. monovinyl hydrocarbon/olefin block copolymer.
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公开(公告)号：JPS60231726A
公开(公告)日：1985-11-18
申请号：JP8617884
申请日：1984-05-01
Applicant: MITSUI PETROCHEMICAL IND
Inventor： ANNEN YOSHIAKI , CHIJIMATSU MASANORI , SUGI MASAHIRO , ISHIMOTO TAKEHIRO
Abstract: PURPOSE:To obtain a polyolefin substantially free of residual odor, by treating an odoriferous polyolefin with a gas or its mixture with steam in a specified temperature range. CONSTITUTION:An odoriferous polyolefin is treated with a gas or its mixture with steam at a temperature in the range of 60 deg.C - the softening point of the polymer. By deodorization at 80 deg.C, it is only possible to remove 40% of hexanes (HX) and 20% of esters (RY) from odoriferous polyethylene pellets, but the percentage of removal increases with an increase in the temperature, and reaches the maximum at 100 deg.C. When the temperature is further raised, the percentage of removal decreases again. The maximum percentage of removal is 97.8% for HX and 98.8% for RY. For a common purpose, the temperature is set at 98- 128 deg.C, preferably 105-127 deg.C. No criticality appears between the deodorization effect and the flow rate of a gas, especially, air and/or the flow rate of steam.
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