公开(公告)号：EP0704462A4

公开(公告)日：1996-08-07

申请号：EP95914558

申请日：1995-04-11

Applicant: MITSUI PETROCHEMICAL IND

Inventor： UEDA TAKASHI ,  HASHIMOTO MIKIO ,  KAWASAKI MASAAKI ,  FUKUOKA DAISUKE ,  IMUTA JUNICHI

IPC: C08F2/00 ,  C08F297/08 ,  C08L23/04 ,  C08L23/08 ,  C08L23/10 ,  C08F10/06 ,  C08F4/60 ,  C08F297/06 ,  C08L23/14

CPC classification number: C08F297/083 ,  C08F297/08 ,  C08L23/0815 ,  C08L23/10 ,  Y10S526/943 ,  C08L2666/06

Abstract: A process for producing a propylene polymer composition by conducting a multi-stage polymerization comprising the step (a) of producing a propylene (co)polymer (a) and the step (b) of producing an ethylene copolymer (b) in an arbitrary order in the presence of a transition metal compound (A) containing a ligand having a cyclopentadienyl skeleton and a compound (B) capable of activating the compound (A) and also in the presence, in the step (b), of the polymer produced in the preceding step (a), in which process the obtained polymer composition contains 20-90 wt. % of the (co)polymer (a) and 80-10 wt. % of the copolymer (b) and has a melt flow rate of 0.01-500 g/10 min as measured at a temperature of 230 °C under a load of 2.16 kg. This process can provide a propylene polymer composition having an excellent balance among rigidity, heat resistance and impact resistance.

Abstract translation: 一种通过进行多阶段聚合生产丙烯聚合物组合物的方法，该方法包括以任意顺序生产丙烯（共）聚合物（a）和生产乙烯共聚物（b）的步骤（b）的步骤 在含有具有环戊二烯基骨架的配体和能够活化化合物（A）的化合物（B）的过渡金属化合物（A）的存在下，以及在步骤（b）中存在的 在前面的步骤（a）中，在该方法中，所得聚合物组合物含有20-90wt。 （共）聚合物（a）和80-10wt。 共聚物（b）的％，并且在230℃的温度和2.16kg的负荷下测得的熔体流动速率为0.01-500g / 10分钟。 该方法可以提供刚性，耐热性和耐冲击性之间具有优异平衡的丙烯聚合物组合物。

公开(公告)号：EP0704463A4

公开(公告)日：1996-08-07

申请号：EP95914559

申请日：1995-04-11

Applicant: MITSUI PETROCHEMICAL IND

Inventor： UEDA TAKASHI ,  HASHIMOTO MIKIO ,  KAWASAKI MASAAKI ,  FUKUOKA DAISUKE ,  IMUTA JUNICHI

IPC: C08F2/00 ,  C08F2/20 ,  C08F4/60 ,  C08F10/06 ,  C08F210/06 ,  C08F210/16 ,  C08F297/08 ,  C08F297/06 ,  C08L23/08 ,  C08L23/14

CPC classification number: C08F297/086 ,  C08F4/65912 ,  C08F10/06 ,  C08F210/06 ,  C08F210/16 ,  C08F2/001 ,  C08F2500/12 ,  C08F2500/17 ,  C08F210/08 ,  C08F210/14 ,  C08F110/06 ,  C08F4/6492 ,  C08F4/65927

Abstract: A process for producing a propylene polymer composition by conducting a multi-stage polymerization comprising the step (a) of producing a propylene (CO) polymer (a), the step (b) of producing a propylene-olefin copolymer (b), and the step (c) of producing an ethylene-olefin copolymer (c) in an arbitrary order in the presence of a transition metal compound (A) containing a ligand having a cyclopentadienyl skeleton and a compound (B) capable of activating the compound (A) and also in the presence, in the steps (b) and (c) of the polymers produced in the preceding steps, in which process the obtained polymer composition contains 20-90 wt.% of the co(polymer) (a), 5-75 wt.% of the copolymer (b), and 5-75 wt.% of the copolymer (c) and has a melt flow rate of 0.01-500 g/10 min. as measured at a temperature of 230 °C under a load of 2.16 kg. This process can provide a propylene polymer composition having an excellent balance among rigidity, heat resistance and impact resistance.

公开(公告)号：EP0646624A4

公开(公告)日：1996-03-20

申请号：EP94904013

申请日：1994-01-11

Applicant: MITSUI PETROCHEMICAL IND

Inventor： HASHIMOTO MIKIO ,  UEDA TAKASI ,  KAWASAKI MASAAKI ,  MORIYA SATORU ,  MIZUNO AKIRA ,  FUKUOKA DAISUKE ,  IMUTA JUNICHI ,  HIROSE KEIJI ,  SAITO JUNJI ,  KISO YOSHIHISA

IPC: C08F4/642 ,  C08L23/08 ,  C08L23/10 ,  C08L23/12 ,  C08L23/14 ,  C08L23/16 ,  C08L23/00 ,  C08L101/00

CPC classification number: C08L23/12 ,  C08L23/0815 ,  C08L23/10 ,  C08L23/142 ,  C08L23/16 ,  C08L2205/02 ,  C08L2314/06 ,  C08L2666/04

Abstract: A propylene polymer composition composed of a propylene polymer (A1) produced by using a metallocene catalyst and having a melt flow rate (MFR) of 0.01-30 g/10 min, a propylene polymer (A2) having an MFR of 30-1,000 g/10 min and, if necessary, a flexible polymer, wherein the ratio of the MFR of the polymer (A2) to that of the polymer (A1) is at least 30. A propylene polymer composition composed of a propylene polymer produced by using a titanium catalyst and having an MFR of 0.01-30 g/10 min, the above polymer (A2) and, if necessary, a flexible polymer. A propylene polymer composition composed of a propylene polymer produced by using a titanium catalyst and having an MFR of 0.01-50 g/10 min and an ethylene-olefin random copolymer produced by using a metallocene catalyst. A propylene polymer composition composed of a propylene polymer produced by using a catalyst containing a specified metallocene compound and at least one synthetic resin selected from among a propylene polymer other than the above propylene polymer, an olefin elastomer and an olefin polymer. All of the above polymer compositions are excellent in heat resistance, mechanical strengths and tensile elongation at break and are suitable for producing various structural materials of automobiles, household electric appliances, etc., daily necessities, films, sheets, and so forth.

公开(公告)号：CA2181307A1

公开(公告)日：1997-01-18

申请号：CA2181307

申请日：1996-07-16

Applicant: MITSUI PETROCHEMICAL IND

Inventor： IMUTA JUNICHI ,  YOSHIDA MASAYASU ,  TOHI YASUSHI

IPC: C07F17/00 ,  C08F4/42 ,  C08F4/64 ,  C08F4/642 ,  C08F4/659 ,  C08F4/6592 ,  C08F10/00 ,  C08F110/02 ,  C08F110/06 ,  C08F210/16 ,  C08F10/02 ,  C08F10/06

Abstract: The olefin polymerization catalyst of the invention is formed from a Group IVB transition metal compound represented by the following formula (I) and an organoaluminum oxy-compound or a compound which reacts with the transition metal compound to form an ion pair. In the olefin polymerization process of the invention using this catalyst or a catalyst formed from a Group IVB transition metal compound represented by the following formula (II) and an organoaluminum oxy-compound or a compound which reacts with the transition metal compound to form an ion pair, an olefin (co)polymer having a high molecular weight can be obtained with high polymerization activities, and besides an olefin copolymer having a high comonomer content can be obtained even if a comonomer is used in a small amount. (I) (II) wherein, M is a transition metal of Group IVB, at least one of R1 is an aryl group and the remainder is hydrogen or the like, R2 is hydrogen, an alkyl group or the like, R3 and R4 are each hydrogen, an alkyl group or the like, R6 is hydrogen, an alkyl group or the like, R7 is hydrogen, an alkyl group or the like, any one of R8 and R9 is an alkyl group, and X1 and X2 are each halogen, a hydrocarbon group or the like.

公开(公告)号：HU210053B

公开(公告)日：1995-01-30

申请号：HU395390

申请日：1990-06-22

Applicant: MITSUI PETROCHEMICAL IND

Inventor： KIHARA NORIAKI ,  IMUTA JUNICHI ,  ORI AIICHIRO

IPC: A61K31/415 ,  A61P27/02 ,  A61P27/06 ,  C07D405/06

Abstract: Process for preparing imidazole derivatives of the general formula (II) : wherein R and R independently are loweralkyl, by desulfurizing a mercaptoimidazole derivative of the general formula (I) : wherein R and R are as defined above, with nitric acid optionally in the presence of a nitrite. The compounds of the formula (II) are useful for the treatment of glaucoma.

公开(公告)号：CA2125247A1

公开(公告)日：1994-12-08

申请号：CA2125247

申请日：1994-06-06

Applicant: MITSUI PETROCHEMICAL IND

Inventor： FUKUOKA DAISUKE ,  TASHIRO TAKASHI ,  KAWAAI KOJI ,  SAITO JUNJI ,  UEDA TAKASHI ,  KISO YOSHIHISA ,  MIZUNO AKIRA ,  KAWASAKI MASAAKI ,  ITOH MASAAKI ,  IMUTA JUNICHI ,  FUJITA TERUNORI ,  NITABARU MASATOSHI ,  YOSHIDA MASAYASU ,  HASHIMOTO MIKIO

IPC: C07C45/46 ,  C07C49/67 ,  C07C49/697 ,  C07F17/00 ,  C08F4/60 ,  C08F4/602 ,  C08F4/619 ,  C08F4/6192 ,  C08F4/64 ,  C08F4/642 ,  C08F4/659 ,  C08F4/6592 ,  C08F10/00 ,  C08F10/06 ,  C08F110/06 ,  C08F210/06 ,  C08F210/16 ,  C07F7/00 ,  C07F9/00 ,  C07F11/00 ,  C08F4/42

Abstract: The novel transition metal compound of the invention is represented by the following formula (I): (see formula I) wherein M is a transition metal; R1 is a hydrocarbon group of 2 to 6 carbon atoms, R2 is an aryl group of 6 to 16 carbon atoms; X1 and X2 are each a halogen atom or the like; and Y is a divalent hydrocarbon group, a divalent silicon-containing group or the like. An olefin polymerization catalyst component of the present invention comprises the aforementioned transition metal compound. An olefin polymerization catalyst of the present invention comprises the aforementioned olefin polymerization catalyst component. The propylene homopolymer, the propylene copolymer and the propylene elastomer according to the present invention have such properties that the triad tacticity of propylene units chain is high, a proportion of the inversely units based on the 2,1-insertion of propylene monomer is in the specific range, and the intrinsic viscosity [.pi.], as measured in decahydronaphthalene at 135.degree.C, is in the specific range.

公开(公告)号：ES2021140B3

公开(公告)日：1991-10-16

申请号：ES88301314

申请日：1988-02-17

Applicant: MITSUI PETROCHEMICAL IND

Inventor： TAN HIORAKI ,  KATO KOJI ,  IMUTA JUNICHI ,  KIHARA NORIAKI

IPC: C07C319/20 ,  C07C67/00 ,  C07C313/00 ,  C07C323/44 ,  C07D233/54 ,  C07D233/64

公开(公告)号：CA2020232C

公开(公告)日：1996-11-19

申请号：CA2020232

申请日：1990-06-29

Applicant: MITSUI PETROCHEMICAL IND

Inventor： FUKUOKA DAISUKE ,  ISHITOKU TAKESHI ,  TAKAHASHI KATSUYA ,  TASHIRO TAKASHI ,  IMUTA JUNICHI ,  TAN HIROAKI ,  ISHIGURO MASAHARU ,  KIHARA NORIAKI ,  MUKAIYAMA TERUAKI

IPC: C07D311/20 ,  C07D311/58

Abstract: Process for preparing polyalkyl-2-alkoxy-7-hydroxychroman derivative of the general formula(V): (V) wherein R1 denotes lower primary alkyl, R2 denotes hydrogen or lower primary alkyl and R3 denotes loweralkyl, by reacting resorcin with either an aliphatic ketone of the general formula(I): (I) wherein R1 and R2 are as defined above, and an alcohol of the formula(II): R3OH (II) wherein R3 is as defined above, in the presence of an acid catalyst, or an aliphatic ketone acetal of the general formula(III): (III) wherein R1, R2 and R3 are as defined above, in the presence of an acid catalyst.

公开(公告)号：CA2157399A1

公开(公告)日：1995-10-12

申请号：CA2157399

申请日：1995-04-11

Applicant: MITSUI PETROCHEMICAL IND

Inventor： UEDA TAKASHI ,  HASHIMOTO MIKIO ,  KAWASAKI MASAAKI ,  FUKUOKA DAISUKE ,  IMUTA JUNICHI

IPC: C08F2/00 ,  C08F2/20 ,  C08F4/60 ,  C08F10/06 ,  C08F210/06 ,  C08F210/16 ,  C08F297/08 ,  C08F297/06

Abstract: A process for preparing a propylene polymer composition comprising conducting multistage polymerization including a step (a) for preparing a propylene (co)polymer (a), a step (b) for preparing a propylene-olefin copolymer (b) and a step (c) for preparing an ethylene-olefin copolymer (c) in the presence of (A) a transition metal compound and (B) a compound activating the transition metal compound (A), in which the steps (a), (b) and (c) may be carried out in any order, each of the second and subsequent stage polymerizations is carried out in the presence of a polymer or polymers obtained by the preceding stage or stages respectively, and the resulting propylene polymer composition contains the propylene (co)polymer (a) in an amount of 20 to 90 % by weight, the propylene-olefin copolymer (b) in an amount of 5 to 75 % by weight and the ethylene-olefin copolymer (c) in an amount of 5 to 75 % by weight, and has MFR, as measured at 230 .degree.C under a load of 2.16 kg, of 0.01 to 500 g/10 min. The process according to the invention can prepare a propylene polymer composition having excellent rigidity, heat resistance and impact resistance.

公开(公告)号：DE69008431D1

公开(公告)日：1994-06-01

申请号：DE69008431

申请日：1990-06-22

Applicant: MITSUI PETROCHEMICAL IND

Inventor： ORI AIICHIRO ,  IMUTA JUNICHI ,  KIHARA NORIAKI C O MITSUI PETR

IPC: A61K31/415 ,  A61P27/02 ,  A61P27/06 ,  C07D405/06

Abstract: Process for preparing imidazole derivatives of the general formula (II) : wherein R and R independently are loweralkyl, by desulfurizing a mercaptoimidazole derivative of the general formula (I) : wherein R and R are as defined above, with nitric acid optionally in the presence of a nitrite. The compounds of the formula (II) are useful for the treatment of glaucoma.