Inventor
EBARA TAKESHI
JP35 patents
Patents
35 patentsUS4900706AFeb 13, 1990
Process for producing olefin polymers and catalyst used therein
SUMITOMO CHEMICAL CO96 citations94
US5023223AJun 11, 1991
Process for producing highly stereospecific α-olefin polymers
SUMITOMO CHEMICAL CO32 citations93
US4940682AJul 10, 1990
Solid catalyst component for olefin polymerization
SUMITOMO CHEMICAL CO50 citations93
US6337377B1Jan 8, 2002
Process for producing olefin polymers, olefin-polymerizing catalyst and polyproylene for biaxially oriented film produced with said catalyst
SUMITOMO CHEMICAL CO38 citations92
US6127303AOct 3, 2000
Process for producing olefin polymers, olefin-polymerizing catalyst and polypropylene for biaxially oriented film produced with said catalyst
SUMITOMO CHEMICAL CO35 citations92
US5470900ANov 28, 1995
Powder molding process using a thermoplastic elastomer powder
SUMITOMO CHEMICAL CO27 citations92
US4916099AApr 10, 1990
Solid catalyst component for olefin copolymerization and process for olefin copolymerization using said solid catalyst component
SUMITOMO CHEMICAL CO23 citations92
US6639018B2Oct 28, 2003
Polypropylene resin composition and process for producing the same
SUMITOMO CHEMICAL CO23 citations91
US5134104AJul 28, 1992
Liquid catalyst component, catalyst system containing said component and process for producing ethylene-α-olefin copolymer using said catalyst system
SUMITOMO CHEMICAL CO49 citations91
US5051484ASep 24, 1991
Process for producing granular thermoplastic elastomer and granular elastomer
SUMITOMO CHEMICAL CO25 citations90
US5608018AMar 4, 1997
α-olefin polymerization catalyst system and process for producing α-olefin catalyst
SUMITOMO CHEMICAL CO35 citations89
US4983561AJan 8, 1991
Process for producing solid catalyst for use in polymerization of olefins
SUMITOMO CHEMICAL CO23 citations88
US5077250ADec 31, 1991
Olefin polymerization catalyst and process for producing ethylene copolymers
SUMITOMO CHEMICAL CO12 citations73
US7276558B2Oct 2, 2007
Polymer composition and film thereof
SUMITOMO CHEMICAL CO6 citations72
US6822049B2Nov 23, 2004
Propylene-based resin composition and film made of the same
SUMITOMO CHEMICAL CO11 citations72
US6818703B2Nov 16, 2004
Propylene-based resin composition and film made of the same
SUMITOMO CHEMICAL CO8 citations72
US5639537AJun 17, 1997
Polypropylene resin composition for oriented film and oriented film of the composition
SUMITOMO CHEMICAL CO8 citations72
US5039766AAug 13, 1991
Liquid catalyst component, catalyst system containing said component and process for producing ethylene-alpha-olefin copolymer using said catalyst system
SUMITOMO CHEMICAL CO12 citations72
US5473021ADec 5, 1995
Process for producing ethylene-propylene block copolymer
SUMITOMO CHEMICAL CO15 citations69
US5449738ASep 12, 1995
Process for producing ethylene-propylene block copolymer
SUMITOMO CHEMICAL CO17 citations69
US6835791B2Dec 28, 2004
Stretched polypropylene film
SUMITOMO CHEMICAL CO6 citations63
US5143880ASep 1, 1992
Solid catalyst component for use in polymerization of α-olefins
SUMITOMO CHEMICAL CO6 citations63
US6835770B1Dec 28, 2004
Process for producing polyolefin-based resin composition
SUMITOMO CHEMICAL CO3 citations62
US6812287B2Nov 2, 2004
Propylene-based resin composition and heat-shrinkable film
SUMITOMO CHEMICAL CO4 citations62
US6479579B1Nov 12, 2002
Anti-blocking agent master batch
SUMITOMO CHEMICAL CO2 citations62
US6103841AAug 15, 2000
α-olefin polymers, α-olefin-polymerizing catalyst and process for producing α-olefin polymers
SUMITOMO CHEMICAL CO5 citations62
US5215951AJun 1, 1993
Process for producing α-olefin polymer
SUMITOMO CHEMICAL CO4 citations62
US7323252B2Jan 29, 2008
Biaxially oriented multilayer polypropylene film
SUMITOMO CHEMICAL CO4 citations61
US6699574B2Mar 2, 2004
Polypropylene-based resin composition for stretched film, process for producing the same and stretched film
SUMITOMO CHEMICAL CO3 citations61
US5958574ASep 28, 1999
Polyolefin resin composition and oriented film therefrom
SUMITOMO CHEMICAL CO5 citations61
US5189124AFeb 23, 1993
Process for producing α-olefin polymers
SUMITOMO CHEMICAL CO5 citations58
US5166280ANov 24, 1992
Olefin polymerization catalyst and process for producing ethylene copolymers
SUMITOMO CHEMICAL CO1 citations52
US7563847B2Jul 21, 2009
Polymer composition and film thereof
SUMITOMO CHEMICAL CO1 citations51
US5258474ANov 2, 1993
Process for producing α-olefin polymer
SUMITOMO CHEMICAL CO1 citations51
US7273907B2Sep 25, 2007
Polypropylene resin composition and film
SUMITOMO CHEMICAL CO0 citations40