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公开(公告)号：EP0791626A4
公开(公告)日：1998-11-25
申请号：EP96929578
申请日：1996-09-10
Applicant: MITSUI PETROCHEMICAL IND
Inventor： KAGAMI MAMORU , TANAKA YASUO , SUGI MASAHIRO
CPC classification number: C08J5/18 , C08J2323/04 , C08L23/04 , C08L23/0815 , C08L2205/02 , C08L2205/025 , C08L2314/06 , C08L2666/04 , C08L2666/06
Abstract: A flexible resin composition of the invention comprises a polyethylene resin (A) and an ethylene-α-olefin random copolymer (B) comprising ethylene and a C3-C20 α-olefin at a specific ratio, and is characterized in that the MFR and density of the polyethylene resin (A) and the density, intrinsic viscosity, glass transition temperature, crystallinity, molecular weight distribution, B value, and gθ * value of the copolymer (B) lie respectively within specific ranges. This composition is excellent in melt flow characteristics, i.e., moldability, and can give a molded article excellent in the balance between flexibility and heat resistance. An ethylene-α-olefin copolymer resin composition of the invention comprises (A-α) a linear ethylene-α-olefin copolymer comprising ethylene and a C4-C20 α-olefin and (B-α) a long-chain branched ethylene-α-olefin random copolymer comprising ethylene and a C3-C20 α-olefin at a specific ratio, and the density and MFR of the copolymer (A-α) and the density, MFR, intrinsic viscosity, glass transition temperature, crystallinity, molecular weight distribution, B value, and gθ * value of the copolymer (B-α) lie respectively within specific ranges. A film of the invention is made from this resin composition. This ethylene-α-olefin copolymer resin composition is excellent in heat stability and high-speed moldability, and can give a film excellent in mechanical strength properties, low-temperature heat sealability, stability of seal, slip characteristics, antiblocking properties, handleability, and adaptability to high-speed filling in automatic filling and packaging. The obtained film also exhibits these effects.
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公开(公告)号：EP0791627A4
公开(公告)日：1998-11-25
申请号：EP96930377
申请日：1996-09-12
Applicant: MITSUI PETROCHEMICAL IND
Inventor： TANAKA YASUO , KAGAMI MAMORU , SUGI MASAHIRO
CPC classification number: C08J5/18 , C08J2323/08 , C08L23/04 , C08L23/0815 , C08L2205/02 , C08L2314/06 , C08L2666/04
Abstract: A composition comprising 100 parts by weight of a polyethylene resin (A) and 2 to 5000 parts by weight of a linear ethylene-α-olefin random copolymer (B) comprising ethylene and a C6-C20 α-olefin, wherein the polyethylene resin (A) has: (a) an MFR (ASTM D 1238, 190 °C, load of 2.16 kg) of 0.1 to 200 g/10 min and (b) a density of 0.901 to 0.970 g/cm3 and the copolymer (B) has: (a) a density of 0.870 to 0.900 g/cm3, (b) an intrinsic viscosity [θ] of 0.3 to 3.0 dl/g as determined at 135 °C in decalin, (c) a glass transition temperature (Tg) of -50°C or below, (d) a crystallinity of less than 40 % as determined by X-ray diffractometry, (e) a molecular weight distribution (Mw/Mn) of 3.0 or below as determined by GPC, (f) a B value of 1.0 to 1.4 as determined by 13C-NMR spectroscopy according to a specific equation and (g) a g θ* value exceeding 0.95, the g θ* value being a [θ]/[θ]¿blank? ratio wherein [θ] is the above intrinsic viscosity (b) and [θ]blank is the intrinsic viscosity of a linear ethylene-propylene copolymer having the same weight-average molecular weight as that of the copolymer (B) (as determined by the light scattering method) and an ethylene content of 70 mole %. This resin composition can give a molded article excellent in flexibility and tensile characteristics.
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公开(公告)号：EP0682042A4
公开(公告)日：1997-03-26
申请号：EP95901603
申请日：1994-11-29
Applicant: MITSUI PETROCHEMICAL IND
Inventor： UEDA TAKASHI , MIZUNO AKIRA , KAWASAKI MASAAKI , FUKUOKA DAISUKE , KISO YOSHIHISA , TANIZAKI TATSUYA , HASHIMOTO MIKIO , SUGI MASAHIRO , TSUTSUI TOSHIYUKI
IPC: C07C45/46 , C07C49/67 , C07C49/697 , C07F17/00 , C08F4/619 , C08F4/6192 , C08F4/639 , C08F4/6392 , C08F4/642 , C08F4/659 , C08F4/6592 , C08F10/00 , C08F10/06 , C08F110/06 , C08F210/06 , C08F210/16 , C08F210/08
CPC classification number: C08F210/16 , C07C45/46 , C07C49/67 , C07C49/697 , C07F17/00 , C08F4/61908 , C08F4/61912 , C08F4/61927 , C08F4/63912 , C08F4/63927 , C08F4/65908 , C08F4/65912 , C08F4/65916 , C08F4/65927 , C08F10/00 , C08F10/06 , C08F110/06 , C08F210/06 , Y10S526/943 , C08F2500/15 , C08F2500/17 , C08F2500/03 , C08F2500/26 , C08F210/14 , C08F210/08
Abstract: A novel propylene elastomer having such characteristics that: (1) it is composed of 50-95 mole % of units derived from propylene and 50-5 mole % of units derived from 1-butene, (2) it has a triad tracticity (mm faction) of at least 90 % as determined by 13C-NMR spectrometry (in hexachlorobutadiene using tetramethylsilane as the internal standard), (3) it has a limiting viscosity of 0.1-12 dl/g (at 135 °C in decalin), (4) it has a molecular weight distribution (Mw/Mn) of 3 or less, and (5) it has a randomness parameter (B) of 1.0 to 1.5, preferably 1.0 to 1.3. In addition, it is desirable that: (6) it has a melting point (Tm) of 60-140 °C and the following relationship holds between the Tm and the 1-butene unit content (M, mole %): -2.6 M + 130 « Tm « -2.3 M + 155, (7) the following relationship holds between the degree of crystallinity (C) and the 1-butene unit content (M, mole %) C » -1.5 M + 75, the elastomer is excellent in rigidity, heat and scratch resistances, transparency, heat sealability, and blocking resistance. It can be produced by using a specified transition metal compound as the catalyst.
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公开(公告)号：DE69312897T2
公开(公告)日：1998-01-02
申请号：DE69312897
申请日：1993-12-21
Applicant: MITSUI PETROCHEMICAL IND
Inventor： YAMAGUCHI MASAYOSHI , ISHIMOTO AKIO , WAKUMOTO HIROSHI , SUGI MASAHIRO
Abstract: A polypropylene composition comprising 95 - 55 parts by weight of polypropylene (A) and 5 - 45 parts by weight of an ethylene/1-butene random copolymer (B-1) which contains constituent units derived from 1-butene in an amount of 15 to 25 % by mol; and a polypropylene composition comprising 95 - 55 parts by weight of polypropylene (A) and 5 - 45 parts by weight of an ethylene/1-octene random copolymer (B-2) which contains constituent units derived from 1-octene in an amount of 8 to 20 % by mol. Each of the random copolymers (B-1) and (B-2) has an intrinsic viscosity [ eta ] of 1.5 to 3.5 dl/g as measured in decalin, a glass transition temperature (Tg) of not higher than -50 DEG C, a crystallinity of less than 20 % as measured by X-ray diffractometry, a randomness parameter (B value) of 1.0 to 1.4 as measured by C-NMR spectroscopy. With respect to a melting point as measured by a differential scanning calorimeter (DSC) as the main peak, the copolymer (B-1) has a value of not higher than 60 DEG C, while the copolymer (B-2) has a value of not higher than 80 DEG C.
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公开(公告)号：DE69312897D1
公开(公告)日：1997-09-11
申请号：DE69312897
申请日：1993-12-21
Applicant: MITSUI PETROCHEMICAL IND
Inventor： YAMAGUCHI MASAYOSHI , ISHIMOTO AKIO , WAKUMOTO HIROSHI , SUGI MASAHIRO
Abstract: A polypropylene composition comprising 95 - 55 parts by weight of polypropylene (A) and 5 - 45 parts by weight of an ethylene/1-butene random copolymer (B-1) which contains constituent units derived from 1-butene in an amount of 15 to 25 % by mol; and a polypropylene composition comprising 95 - 55 parts by weight of polypropylene (A) and 5 - 45 parts by weight of an ethylene/1-octene random copolymer (B-2) which contains constituent units derived from 1-octene in an amount of 8 to 20 % by mol. Each of the random copolymers (B-1) and (B-2) has an intrinsic viscosity [ eta ] of 1.5 to 3.5 dl/g as measured in decalin, a glass transition temperature (Tg) of not higher than -50 DEG C, a crystallinity of less than 20 % as measured by X-ray diffractometry, a randomness parameter (B value) of 1.0 to 1.4 as measured by C-NMR spectroscopy. With respect to a melting point as measured by a differential scanning calorimeter (DSC) as the main peak, the copolymer (B-1) has a value of not higher than 60 DEG C, while the copolymer (B-2) has a value of not higher than 80 DEG C.
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Patent Agency Ranking
公开(公告)号：DE3876223T2
公开(公告)日：1993-04-01
申请号：DE3876223
申请日：1988-12-14
Applicant: MITSUI PETROCHEMICAL IND
Inventor： SUGI MASAHIRO , NAKAGAWA TAKASI
IPC: B32B27/32 , B65D17/40 , B65D65/40 , B65D77/38 , C08L23/06 , C08L23/08 , C08L23/12 , C09J123/02 , C09J123/08
Abstract: A heat seal material having a plurality of resin surfaces which are positioned face to face and can be heat-fused together, at least one of the resin surfaces being formed of a resin composition comprising (A) 30 to 85% by weight of low-density polyethylene having a density of 0.91 to 0.94 g/cm and a crystallinity of more than 40%, (B) 5 to 40% by weight of polypropylene, and (C) 10 to 40% by weight of a low-crystalline or substantially amorphous ethylene/alpha-olefin copolymer. f
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公开(公告)号：AT75232T
公开(公告)日：1992-05-15
申请号：AT87308964
申请日：1987-10-09
Applicant: MITSUI PETROCHEMICAL IND
Inventor： KIOKA MAMORU , KASHIWA NORIO , SUGI MASAHIRO , TOYOTA AKINORI
IPC: B32B27/32 , C08F2/00 , C08F210/16 , C08L23/14 , C08L23/16
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公开(公告)号：SG54479A1
公开(公告)日：1998-11-16
申请号：SG1997000835
申请日：1997-03-18
Applicant: MITSUI PETROCHEMICAL IND
Inventor： TANAKA YASUO , SUGI MASAHIRO , NAKAGAWA NORIHIKO
Abstract: DISCLOSED IS A POLYPROPYLENE FILM FORMED FROM A POLYPROPYLENE COMPOSITION COMPRISING A 5 TO 60 PARTS BY WEIGHT OF A SPECIFIC ETHYLENE/C5-C20 (ALPHA)-OLEFIN RANDOM COPOLYMER (A) AND 40 TO 95 PART BY WEIGHT OF CRYSTALLINE POLYPROPYLENE (B), THE TOTAL AMOUNT OF SAID COMPONENTS (A) AND (B) BEING 100 PARTS BY WEIGHT. THE ETHYLENE/C5-C20 (ALPHA)-OLEFIN RANDOM COPOLYMER (A) IS A COPOLYMER COMPRISING ETHYLENE AND AN (ALPHA)-OLEFIN OF 5 TO 20 CARBON ATOMS AND HAS THE PROPERTIES: THE DENSITY IS IN THE RANGE OF 0.870 TO 0.900 G/CM3; THE MELT FLOW RATE (MFR, ASTM D 1238, 190?C, LOAD OF 2.16 KG) IS IN THERANGE OF 0.01 TO 50 G/10 MIN; AND THE TEMPERATURE (TM (?C)) AT THE POSITION OF THE MAXIMUM PEAK OF AN ENDOTHERM CURVE OF THIS COPOLYMER MEASURED BY DSC AND THE DENSITY (D (G/CM3)) SATISFY A SPECIFIC RELATION. THE POLYPROPYLENE FILM HAS EXCELLENT TRANSPARENCY, IMPACT RESISTANCE (FILM IMPACT STRENGTH) AND LOW-TEMPERATURE HEAT-SEALING PROPERTIES, AND BESIDES THE FILM SHOWS EXCELLENT TENSILE PROPERTIES, HEAT-SEALING STRENGTH PROPERTIES, BLOCKING RESISTANCE AND SLIP PROPERTIES.
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公开(公告)号：ID16372A
公开(公告)日：1997-09-25
申请号：ID970879
申请日：1997-03-18
Applicant: MITSUI PETROCHEMICAL IND
Inventor： TANAKA YASUO , SUGI MASAHIRO , NAKAGAWA NORIHIKO
Abstract: DISCLOSED IS A POLYPROPYLENE FILM FORMED FROM A POLYPROPYLENE COMPOSITION COMPRISING A 5 TO 60 PARTS BY WEIGHT OF A SPECIFIC ETHYLENE/C5-C20 (ALPHA)-OLEFIN RANDOM COPOLYMER (A) AND 40 TO 95 PART BY WEIGHT OF CRYSTALLINE POLYPROPYLENE (B), THE TOTAL AMOUNT OF SAID COMPONENTS (A) AND (B) BEING 100 PARTS BY WEIGHT. THE ETHYLENE/C5-C20 (ALPHA)-OLEFIN RANDOM COPOLYMER (A) IS A COPOLYMER COMPRISING ETHYLENE AND AN (ALPHA)-OLEFIN OF 5 TO 20 CARBON ATOMS AND HAS THE PROPERTIES: THE DENSITY IS IN THE RANGE OF 0.870 TO 0.900 G/CM3; THE MELT FLOW RATE (MFR, ASTM D 1238, 190?C, LOAD OF 2.16 KG) IS IN THERANGE OF 0.01 TO 50 G/10 MIN; AND THE TEMPERATURE (TM (?C)) AT THE POSITION OF THE MAXIMUM PEAK OF AN ENDOTHERM CURVE OF THIS COPOLYMER MEASURED BY DSC AND THE DENSITY (D (G/CM3)) SATISFY A SPECIFIC RELATION. THE POLYPROPYLENE FILM HAS EXCELLENT TRANSPARENCY, IMPACT RESISTANCE (FILM IMPACT STRENGTH) AND LOW-TEMPERATURE HEAT-SEALING PROPERTIES, AND BESIDES THE FILM SHOWS EXCELLENT TENSILE PROPERTIES, HEAT-SEALING STRENGTH PROPERTIES, BLOCKING RESISTANCE AND SLIP PROPERTIES.
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公开(公告)号：CA2204989A1
公开(公告)日：1997-03-20
申请号：CA2204989
申请日：1996-09-10
Applicant: MITSUI PETROCHEMICAL IND
Inventor： TANAKA YASUO , KAGAMI MAMORU , SUGI MASAHIRO
Abstract: A flexible resin composition of the invention comprises a polyethylene resin (A) and an ethylene-.alpha.-olefin random copolymer (B) comprising ethylene and a C3-C20 .alpha.-olefin at a specific ratio, and is characterized in that the MFR and density of the polyethylene resin (A) and the density, intrinsic viscosity, glass transition temperature, crystallinity, molecular weight distribution, B value, and g * value of the copolymer (B) lie respectively within specific ranges. This composition is excellent in melt flow characteristics, i.e., moldability, and can give a molded article excellent in the balance between flexibility and heat resistance. An ethylene-.alpha.-olefin copolymer resin composition of the invention comprises (A-.alpha.) a linear ethylene-.alpha.-olefin copolymer comprising ethylene and a C4-C20 .alpha.-olefin and (B-.alpha.) a long-chain branched ethylene-.alpha.-olefin random copolymer comprising ethylene and a C3-C20 .alpha.-olefin at a specific ratio, and the density and MFR of the copolymer (A-.alpha.) and the density, MFR, intrinsic viscosity, glass transition temperature, crystallinity, molecular weight distribution, B value, and g * value of the copolymer (B.alpha.) lie respectively within specific ranges. A film of the invention is made from this resin composition. This ethylene-.alpha.-olefin copolymer resin composition is excellent in heat stability and high-speed moldability, and can give a film excellent in mechanical strength properties, low-temperature heat sealability, stability of seal, slip characteristics, antiblocking properties, handleability, and adaptability to high-speed filling in automatic filling and packaging. The obtained film also exhibits these effects.
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