公开(公告)号：EP1595897A4

公开(公告)日：2008-01-16

申请号：EP04711698

申请日：2004-02-17

Applicant: MITSUI CHEMICALS INC

Inventor： TAKAHASHI MAMORU ,  OKAMOTO MASAHIKO ,  KASAI TETSUJI ,  TOHI YASUSHI ,  OTSUZUKI SHIRO ,  NAGANO SHINICHI ,  FUNABARA YASUO ,  AKASHI TAKAHIRO

IPC: C08F210/16 ,  C08F210/02

CPC classification number: C08F297/08 ,  C08F210/16 ,  C08F297/083 ,  Y10S526/943 ,  C08F210/14 ,  C08F2500/02 ,  C08F2500/04 ,  C08F2500/17

Abstract: An ethylene polymer which contains 0.01 to 1.20 % by mole of constituent units derived from an α-olefin having 6 to 10 carbon atoms and which exhibits in the cross fractionation chromatography (CFC) the following characteristic: (1) the weight-average molecular weight (Mw) of the components eluted in the temperature range of 73 to 76°C does not exceed 4,000 or (2) the relationship (Eq-1) is satisfied: Sx / Stotal

公开(公告)号：EP1241194A4

公开(公告)日：2004-12-22

申请号：EP01954350

申请日：2001-07-26

Applicant: MITSUI CHEMICALS INC

Inventor： KASHIWA NORIO ,  KOJOH SHINICHI ,  MATSUO SHINGO ,  SAITO JUNJI ,  FUJITA TERUNORI ,  MITANI MAKOTO ,  TAKAHASHI MAMORU ,  SATO YASUO

IPC: C08F4/02 ,  C08F4/60 ,  C08F4/658 ,  C08F10/00 ,  C08F10/02 ,  C08F110/02 ,  C08F210/16 ,  C08F255/00 ,  C08F255/02 ,  C08F290/00 ,  C08F290/04 ,  C08F290/06

CPC classification number: C08F290/06 ,  C08F4/65912 ,  C08F4/6592 ,  C08F10/00 ,  C08F10/02 ,  C08F110/02 ,  C08F210/16 ,  C08F255/00 ,  C08F255/02 ,  C08F290/00 ,  C08F290/042 ,  C08F2420/02 ,  C08F4/64048 ,  C08F2500/12 ,  C08F2500/03 ,  C08F2500/09 ,  C08F2500/20 ,  C08F2500/11 ,  C08F210/14 ,  C08F4/65904

Abstract: A polymer characterized by having a melt tension (MT (g)) substantially equal to or lower than that of a polymer which is substantially equal in repeating units of the backbone and in molecular weight, molecular-weight distribution, and crystallinity and by having a flow activation energy (Ea (KJ/mol)) higher by at least 5 KJ/mol than the Ea value of that polymer. A preferred example of the polymer is one which comprises 50 to 100 mol% repeating units derived from ethylene and 0 to 50 mol% repeating units derived from an a-olefin having 3 to 20 carbon atoms, satisfies a specific relationship between flow activation energy (Ea (KJ/mol)) and a-olefin content (C (wt.%)), and satisfies a specific relationship between melt tension (MT (g)) and melt flow rate (MFR (g/10 min)). This branched polyolefin is excellent in moldability and mechanical strength.

公开(公告)号：EP1264848A4

公开(公告)日：2004-10-27

申请号：EP01951996

申请日：2001-07-24

Applicant: MITSUI CHEMICALS INC

Inventor： MURAKAMI HIDETATSU ,  TAKAHASHI MAMORU ,  IKENAGA SHIGENOBU

IPC: C08F4/659 ,  C08F4/6592 ,  C08F210/16 ,  C08L23/02 ,  C08L23/08 ,  C08F210/02

CPC classification number: C08L23/02 ,  C08F4/65912 ,  C08F4/6592 ,  C08F210/16 ,  C08L23/0815 ,  C08L2314/06 ,  Y10S526/905 ,  C08F4/65908 ,  C08L2666/04 ,  C08F2500/08 ,  C08F2500/12 ,  C08F2500/26 ,  C08F210/06

Abstract: A copolymer (A-1) of ethylene and an a-olefin having 3 to 20 carbon atoms, characterized in that: the melt index (MI2) at 190°C under a load of 2.16kg is 0.0001 to 1000g/10 min, the density is 0.899g/cm3 or below, the vinyl content of the copolymer and MI2 satisfy the relationship [c]: (the number of vinyl groups per 1000 carbon atoms) ≤ 0.018038 + 0.003259 x log (MI2) [c] and the vinylidene content of the copolymer and MI2 satisfy the relationship [d]: (the number of vinylidene groups per 1000 carbon atoms) ≤ 0.018038 + 0.003259 x log (MI2) [d] This copolymer (A-1) is excellent in mechanical properties, processability in molding, heat stability in molding and processing, and thermal aging resistance, and useful as moldings including film and sheeting, resin modifier, or rubbery elastomer.

Abstract translation: 本发明的乙烯共聚物是乙烯和碳原子数3〜20的α-烯烃的共聚物（A-1），具有以下性质：（a）在190℃的负荷下的熔体指数（MI2） 2.16kg在0.0001〜1000g / 10min的范围内，（b）密度不大于0.899g / cm 3，（c）聚合物的乙烯基量与MI2之间的关系满足以下 表达式（c）：（乙烯基组数：乙烯基数/ 1000个碳原子数）≤0.018038+ 0.003259xlog（MI2）和（d） 亚乙烯基量和聚合物的MI2满足以下表达式（d）：

公开(公告)号：EP0982362A4

公开(公告)日：2002-03-06

申请号：EP99909181

申请日：1999-03-10

Applicant: MITSUI CHEMICALS INC

Inventor： TAKAHASHI MAMORU ,  NAKAGAWA TAKASHI ,  SUGIMURA KENJI ,  YOSHITSUGU KEN

IPC: C08F4/642 ,  C08L23/08 ,  D01F6/30 ,  H01B3/44 ,  C08F210/16 ,  C08J5/18 ,  C08J9/04 ,  C08L23/06 ,  H01B7/18

CPC classification number: H01B3/441 ,  C08L23/0815 ,  C08L2314/06 ,  D01F6/30 ,  C08L2666/04

Abstract: An ethylene copolymer composition excellent in transparency, mechanical strength, and moldability. The composition comprises: an ethylene/C6-8 α-olefin copolymer in which the melt tension (MT) and the melt flow rate (MFR) satisfy the relationship 9.0xMFR-0.65⊃MT⊃2.2xMFR-0.84 and the flow activation energy ((E¿a)x10?-4 J/molK), the number of carbon atoms of the α-olefin in the copolymer (C), and the content of the α-olefin in the copolymer (x mol%) satisfy the relationship (0.039Ln(C-2)+0.0096)xx+2.87∫E¿ax10?-4≤(0.039Ln(C-2)+0.1660)xx+2.87 and which through inflation gives a film having a haze satisfying a specific relationship; and a low-density polyethylene obtained by a high-pressure radical process. The composition is usable as moldings such as films, sheets, packaging materials, injection moldings, foam moldings, and fibers, which are excellent in any of mechanical strength, heat resistance, and transparency.

公开(公告)号：EP1162211A4

公开(公告)日：2002-10-30

申请号：EP00939081

申请日：2000-06-16

Applicant: MITSUI CHEMICALS INC

Inventor： TAKAHASHI MAMORU ,  KASAI TETSUJI ,  SAITO JUNJI ,  MATSUKAWA NAOTO ,  TSURU KAZUTAKA ,  MITANI MAKOTO ,  FUJITA TERUNORI ,  OTSUZUKI SHIRO ,  MATSUMOTO TETSUHIRO ,  TSUTSUI TOSHIYUKI

IPC: C08J5/00 ,  C08F4/64 ,  C08F4/642 ,  C08F4/659 ,  C08F4/6592 ,  C08F10/00 ,  C08F10/02 ,  C08F110/02 ,  C08F210/16 ,  C08F255/02 ,  C08L23/04 ,  C08L23/08 ,  C08L51/06 ,  C08L101/00 ,  C08F255/00

CPC classification number: C08F255/02 ,  C08F10/00 ,  C08F10/02 ,  C08F110/02 ,  C08F210/16 ,  C08L23/04 ,  C08L23/0815 ,  C08L2205/02 ,  C08L2205/025 ,  C08F4/64048 ,  C08L2666/04 ,  C08F2500/10 ,  C08F2500/17 ,  C08F2500/12 ,  C08F2500/03 ,  C08F2500/07 ,  C08F2500/11 ,  C08F2500/14 ,  C08F210/14 ,  C08F210/08

Abstract: Ethylene (co)polymers excellent in moldability, mechanical characteristics and so on and suitable for various moldings, particularly pipes. For example, ethylene homopolymers or ethylene/C4-C20 α-olefin copolymers, wherein the number of methyl branches is less than 0.1 per 1000 carbon atoms as determined by 13C-NMR and the Mw/Mn ratio is 1.8 or above but below 4.5 as determined by GPC; and ethylene homopolymers or ethylene/C¿3?-C20 α-olefin copolymers, wherein the melt tension (MT) and the swelling ratio (SR) satisfy the relationship: log(MT) > 12.9 - 7.15 x SR, and the intrinsic viscosity ([θ]) and the melt flow rate (MFR) satisfy the relationship: [θ] > 1.85 x MFR?-0.192¿ in the case of MFR 1.85 x MFR-0.213 in the case of MFR ≥ 1.

公开(公告)号：EP1086963A4

公开(公告)日：2002-07-03

申请号：EP99907888

申请日：1999-03-10

Applicant: MITSUI CHEMICALS INC

Inventor： TAKAHASHI MAMORU ,  NAKAGAWA TAKASHI ,  SUGIMURA KENJI ,  YOSHITSUGU KEN

IPC: C08F4/642 ,  C08L23/08 ,  D01F6/30 ,  H01B3/44 ,  C08F210/16 ,  C08J5/18 ,  C08J9/04 ,  C08L23/06 ,  C08L23/16 ,  H01B7/18

CPC classification number: H01B3/441 ,  C08L23/0815 ,  C08L2203/12 ,  C08L2203/202 ,  C08L2205/02 ,  C08L2314/06 ,  D01F6/30 ,  C08L2666/04

Abstract: The present invention is intended to obtain molded products such as films, sheets, packaging materials, injection molded products, expansion molded products and fibers which are excellent in mechanical strength, heat resistance or transparency. These molded products comprise an ethylene/ alpha -olefin copolymer (A) or an ethylene copolymer composition (A'). The ethylene/ alpha -olefin copolymer (A) is a copolymer of ethylene and an alpha -olefin of 6 to 8 carbon atoms and has the following properties: the melt tension and MFR satisfy a specific relation; the flow activation energy determined from a shift factor of time-temperature superposition of the flow curve, the carbon atom number of the alpha -olefin in the copolymer and the alpha -olefin content in the copolymer satisfy a specific relation; and the haze of a film having a thickness of 30 mu m produced by inflation molding of the copolymer satisfies a specific relation. The ethylene copolymer composition (A') has substantially the same components and components ratio as those of the copolymer (A), comprises (B) a copolymer of ethylene and an alpha -olefin of 6 to 8 carbon atoms and (C) a copolymer of ethylene and an alpha -olefin of 6 to 8 carbon atoms, and has a specific relation between MFR of the copolymer (C) and MFR of the copolymer (B).