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公开(公告)号：CA2193916A1
公开(公告)日：1997-06-29
申请号：CA2193916
申请日：1996-12-24
Applicant: MITSUI PETROCHEMICAL IND
Inventor： TAKAHASHI MAMORU , NAKAGAWA TAKASI , OHGIZAWA MASAAKI
IPC: C08J5/14 , B29C48/305 , B29K23/00 , B29L7/00 , C08F4/659 , C08F4/6592 , C08F210/16 , C08J5/18
Abstract: Disclosed is an ethylene/.alpha.-olefin copolymer having the properties: the density and the melt flow rate are each in the specific range; the melt tension and the melt flow rate satisfy the specific relation; the flow index and the melt flow rate satisfy the specific relation; the quantity fraction of a decane-soluble component of the copolymer and the density satisfy the specific relation; the temperature at the maximum peak position of an endotherm curve of the copolymer measured by a differential scanning calorimeter and the density satisfy the specific relation; the endotherm curve of the copolymer measured by a differential scanning calorimeter has two or more melting point peaks, and the temperature at the position of the maximum peak and the temperature at the position of the peak on the lowest temperature side satisfy the specific relation; and a component which is eluted at a temperature of not lower than 100 .degree.C in a temperature rising elution fractionation test (TREF) exists in the copolymer, and the amount of the eluted component is in the specific range. This ethylene/.alpha.-olefin copolymer shows excellent moldability and is capable of producing molded products of excellent transparency and mechanical strength.
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公开(公告)号：CA1335956C
公开(公告)日：1995-06-20
申请号：CA585596
申请日：1988-12-12
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/cm3 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.
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公开(公告)号：CA2010319A1
公开(公告)日：1990-08-20
申请号：CA2010319
申请日：1990-02-19
Applicant: MITSUI PETROCHEMICAL IND
Inventor： YAMAMOTO YOHZOH , NAKAGAWA TAKASI
Abstract: A foamable polymer compositor comprising [A] at least one cyclo-olefin resin selected from the group consisting of (A-1) ring-opened polymers derived from cyclo-olefins represented by the following general formula [I], (A-2) ring-opened copolymers derived from the cyclo-olefins of general formula [I], (A-3) hydrogenation products of the ring-opened polymers (A-1), (A-4) hydrogenation products of the ring-opened copolyers (A-2), and (A-5) addition polymers of the cycloolefins of general formula [I] with ethylene, and (B) a blowing agent, wherein n is 0 or a.positive integer; R1 to R12, independently from each other, represent an atom or a.group selected from the class consisting of a hydrogen atom, halogen atoms and hydrocarbon groups; R9 to R12 may be linked to each other to form a monocyclic or polycyclic hydrocarbon group; and R9 and R10, or R11 and R12 may each form an alkylidene group.
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公开(公告)号：HK112293A
公开(公告)日：1993-10-29
申请号：HK112293
申请日：1993-10-21
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：AT82732T
公开(公告)日：1992-12-15
申请号：AT88311841
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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Patent Agency Ranking
公开(公告)号：CA2010320A1
公开(公告)日：1990-08-20
申请号：CA2010320
申请日：1990-02-19
Applicant: MITSUI PETROCHEMICAL IND
Inventor： YAMAMOTO YOHZOH , NAKAGAWA TAKASI
Abstract: A sheet or a film composed of at least one cyclo-olefin polymer selected from the group consisting of ring-opened polymers derived from at least one cyclo-olefin of formula (I)~~~ (see formula I) wherein R1 to R12, independently from each other, represent a member selected from the class consisting of a hydrogen atom, halogen atoms and hydrocarbon groups; two of R9 to R12 may be linked to each other together with the carbon atoms to which they are bonded to form a monocyclic or polycyclic group which may contain a double bond; R9 and R10, or R11 and R12 may each form an alkylidene group together with the carbon atoms to which they are bonded; and n is 0 or a positive integer, ring-opened copolymers derived from the cyclo-olefins of formula (I), hydrogenation products of said polymer or copolymers and addition polymers of the cyclo-olefins of formula (I) with ethylene, said cyclo-olefin polymer having an intrinsic viscosity ¢~!, measured in decalin at 135 .degree.C, of 0.01 to 10 dl/g and a softening temperature of at least 70 .degree.C.
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公开(公告)号：DE69031715D1
公开(公告)日：1998-01-02
申请号：DE69031715
申请日：1990-02-20
Applicant: MITSUI PETROCHEMICAL IND
Inventor： YAMAMOTO YOHZOH , NAKAGAWA TAKASI
Abstract: A foamable polymer composition is disclosed, comprising (a) at least one cyclo-olefin resin [A] selected from: (A-1) ring-opened polymers derived from cyclo-olefins represented by the following general formula [I], (A-2) ring-opened copolymers derived from the cyclo-olefins of general formula [I], (A-3) hydrogenation products of the ring-opened polymers (A-1), (A-4) hydrogenation products of the ring-opened copolymers (A-2), and (A-5) addition polymers of the cyclo-olefins of general formula [I[ with ethylene, wherein n is 0 or a positive integer; each of R to R independently represents hydrogen, a halogen or an aliphatic, alicyclic or aromatic hydrocarbon group; two of R to R may be linked to each other to form, together with the carbon atoms to which they are attached, a monocyclic or polycyclic hydrocarbon group; or R and R , or R and R together form an alkylidene group; and [b] a blowing agent. The composition may be expanded to form porous polymeric articles having a variety of applications
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公开(公告)号：DE69028560T2
公开(公告)日：1997-03-06
申请号：DE69028560
申请日：1990-02-20
Applicant: MITSUI PETROCHEMICAL IND
Inventor： YAMAMOTO YOHZOH , NAKAGAWA TAKASI
Abstract: A sheet or a film is disclosed formed of at least one cyclo-olefin polymer selected from ring-opened polymers derived from at least one cyclo-olefin of formula (I) wherein n is 0 or a positive integer, and each of R to R independently represents hydrogen, a halogen or an aliphatic, aromatic or alicyclic hydrocarbon group; two of R to R form, together with the carbon atoms to which they are bonded, a monocyclic or polycyclic group which may contain a double bond; or R and R , or R and R form an alkylidene group together with the carbon atoms to which they are bonded; ring-opened copolymers derived from the cyclo-olefins of formula (I), hydrogenation products of said polymers or copolymers and addition polymers of the cyclo-olefins of formula (I) with ethylene, said cyclo-olefin polymer having an intrinsic viscosity [ eta ], measured in decalin at 135 DEG C, of 0.01 to 10 dl/g and a softening temperature of at least 70 DEG C. Sheets and films of the invention have good properties of elongation resistance, ease of tearing and chemical resistance as well as providing an effective gas barrier
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公开(公告)号：AT143029T
公开(公告)日：1996-10-15
申请号：AT90301789
申请日：1990-02-20
Applicant: MITSUI PETROCHEMICAL IND
Inventor： YAMAMOTO YOHZOH , NAKAGAWA TAKASI
Abstract: A sheet or a film is disclosed formed of at least one cyclo-olefin polymer selected from ring-opened polymers derived from at least one cyclo-olefin of formula (I) wherein n is 0 or a positive integer, and each of R to R independently represents hydrogen, a halogen or an aliphatic, aromatic or alicyclic hydrocarbon group; two of R to R form, together with the carbon atoms to which they are bonded, a monocyclic or polycyclic group which may contain a double bond; or R and R , or R and R form an alkylidene group together with the carbon atoms to which they are bonded; ring-opened copolymers derived from the cyclo-olefins of formula (I), hydrogenation products of said polymers or copolymers and addition polymers of the cyclo-olefins of formula (I) with ethylene, said cyclo-olefin polymer having an intrinsic viscosity [ eta ], measured in decalin at 135 DEG C, of 0.01 to 10 dl/g and a softening temperature of at least 70 DEG C. Sheets and films of the invention have good properties of elongation resistance, ease of tearing and chemical resistance as well as providing an effective gas barrier
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公开(公告)号：DE69216019T2
公开(公告)日：1997-06-05
申请号：DE69216019
申请日：1992-09-11
Applicant: MITSUI PETROCHEMICAL IND
Inventor： YAMAMOTO SANAEHIRO , KIMURA TOSHIO , NAKAGAWA TAKASI , TOYOTA AKINORI
Abstract: A composition comprising:[A] (a-4) a graft-modified cycloolefin resin obtainable by graft-modifying with a graft monomer at least one cycloolefin polymer selected from(a-1) a random copolymer of ethylene and a cycloolefin represented by formula [I]; wherein, n is 0 or 1; m is 0 or a positive integer; q is 0 or 1; R¹ to R¹⁸, and R a and R b are each independently a hydrogen atom, a halogen atom or a hydrocarbon group; R¹⁵ to R¹⁸ may be linked to each other to form a monocyclic or polycyclic group, and the monocyclic or polycyclic group may have a double bond; and R¹⁵ and R¹⁶, or R¹⁷ and R¹⁸ may form an alkylidene group,(a-2) a ring-opening homopolymer or copolymer of a cycloolefin represented by formula [I], and(a-3) a hydrogenation product of said ring-opening homopolymer or copolymer;[B] (b-1) an elastomer having a tensile modulus at 23°C of 0.1 to 2,000 kg/cm², a glass transition temperature of not higher than 0°C and a crystallinity of not more than 30%, in an amount of 0.5 to 50 parts by weight based on 100 parts by weight of the graft-modified cycloolefin resin (a-4); and[C] a polyamide resin in an amount of 5 to 300 parts by weight based on 100 parts by weight of the graft-modified cycloolefin resin (a-4).
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