专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明专利

JPH10139946A ALPHA-OLEFIN/AROMATIC VINYL COMPOUND COPOLYMER COMPOSITION, AND MOLDED ITEM THEREOF 失效
公开(公告)号：JPH10139946A
公开(公告)日：1998-05-26
申请号：JP33751597
申请日：1997-12-08
申请人： MITSUI CHEMICALS INC
发明人： OKADA KEIJI , TAKIMOTO KAZUYUKI , MATSUMOTO TETSUHIRO , MORISONO KENICHI
IPC分类号： C08J5/18 , C08F4/82 , C08F210/00 , C08K5/04 , C08K5/098 , C08L23/02
摘要： PROBLEM TO BE SOLVED: To provide an α-olefin/arom. vinyl compd. copolymer compsn, which does not contain chlorine, has suitable elongation, elasticity, and stickiness, and is excellent in clarity and antifogging properties and persistence thereof, and to provide a molded item produced from the same. SOLUTION: This compsn. contains 99.5-90wt.% α-olefin/arom. vinyl compd. copolymer obtd. by copolymerizing an α-olefin and an arom. vinyl compd. in the presence of a metallocene catalyst and comprising 99.95-70mol% structural units derived from the α-olefin and 0.05-30mol% structural units derived from the arom. vinyl compd. and 0.5-10wt.% antifogging agent. The molded item is obtd. from the compsn.

42. 发明专利

JP2007023171A Ultra-high-molecular-weight polyethylene particulate excellent in heat resistance and method for producing the same 审中-公开
标题翻译：超高分子量聚异丁烯的耐热性优良的方法及其制造方法
公开(公告)号：JP2007023171A
公开(公告)日：2007-02-01
申请号：JP2005208070
申请日：2005-07-19
申请人： Mitsui Chemicals Inc , 三井化学株式会社
发明人： NISHIJIMA SHIGETOSHI , MATSUMOTO TETSUHIRO
IPC分类号： C08F255/02 , C08F2/44 , C08L23/06 , C08L23/12 , C08L23/18
摘要： PROBLEM TO BE SOLVED: To provide an ultra-high-molecular-weight polyethylene particulate excellent in wear resistance, impact resistance, self-lubricating property and heat resistance.
SOLUTION: The ultra-high-molecular-weight polyethylene particulate has a polyethylene content of 50-99 mass%, and at least its surface is made of an ultra-high-molecular-weight polyethylene with a limiting viscosity [η] of ≥5 dl/g. The interior of the particulate comprises an α-olefin polymer chosen from the group consisting of propylene, 3-methyl-1-butene and 4-methyl-1-pentene. In a method for producing the ultra-high-molecular-weight polyethylene particulate, using a catalyst comprising a transition metal catalyst component and an organic metal component, ethylene is first polymerized until it accounts for ≥50 mass% of the total amount of a polymerized product, and the α-olefin polymer chosen from the group consisting of propylene, 3-methyl-1-butene and 4-methyl-1-pentene is subsequently polymerized so that it accounts for the remaining amount of the polymerized product.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供耐磨性，耐冲击性，自润滑性和耐热性优异的超高分子量聚乙烯颗粒。解决方案：超高分子量聚乙烯颗粒的聚乙烯含量为50-99质量％，至少其表面由极限粘度[η]的超高分子量聚乙烯制成， ≥5dl / g。颗粒的内部包含选自丙烯，3-甲基-1-丁烯和4-甲基-1-戊烯的α-烯烃聚合物。在使用含有过渡金属催化剂成分和有机金属成分的催化剂的超高分子量聚乙烯粒子的制造方法中，首先使乙烯聚合直至聚合的聚合物的总量的≥50质量％产物，并且选自丙烯，3-甲基-1-丁烯和4-甲基-1-戊烯的α-烯烃聚合物随后聚合，从而占聚合产物的剩余量。版权所有（C）2007，JPO＆INPIT

43. 发明公开

EP0869146A4 ETHYLENE COPOLYMER COMPOSITION AND MOLDINGS 失效
标题翻译：乙烯共聚物组合物及成型化合物
公开(公告)号：EP0869146A4
公开(公告)日：2000-11-08
申请号：EP97944181
申请日：1997-10-20
申请人： MITSUI CHEMICALS INC
发明人： OKADA KEIJI , TAKIMOTO KAZUYUKI , MATSUMOTO TETSUHIRO , MORIZONO KEN-ICHI
IPC分类号： C08L23/06 , C08L23/08 , C08L23/16
CPC分类号： C08L23/06 , C08L23/08 , C08L23/0815 , C08L23/0838 , C08L2205/02 , C08L2666/04
摘要： The present invention provides a copolymer composition based on ethylene which exhibits an adequate extensible flexibility and an ability for adhering onto various surfaces and which is superior in the transparency, strength, restorability from strain, blocking resistance and processibility and has no content of chlorine, as well as formed products made thereof, such as films, sheets, pipes and tubes, wherein said copolymer composition comprises (A) 10 - 90 % by weight of a copolymer of ethylene with an aromatic vinyl compound and/or an alpha - olefin, which has a degree of crystallinity of at least 10 % but less than 90 % and an intrinsic viscosity Ä eta AÜ of 1 - 10 dl/g and (B) 10 - 90 % by weight of a homopolymer of ethylene or a copolymer of ethylene with an aromatic vinyl compound and/or an alpha -olefin, which has a degree of crystallinity higher than 10 % but not higher than 90 % and an intrinsic viscosity Ä eta BÜ of 0.1 - 2 dl/g wherein at least one of the above ethylenic copolymer (A) and the ethylenic polymer (B) has the copolymerized aromatic vinyl compound and wherein the ratio of Ädegree of crystallinity of (A)/degreee of crystallinity of (B)Ü is less than 1 and the ratio of Ä eta AÜ/Ä eta BÜ is greater than 1.

44. 发明公开

EP0870801A4 ALPHA-OLEFIN/AROMATIC VINYL COPOLYMER COMPOSITION AND MOLDINGS THEREOF 失效
标题翻译： APLHA烯烃/芳族乙烯基共聚物和模塑的组成THEREOF
公开(公告)号：EP0870801A4
公开(公告)日：1999-12-08
申请号：EP97940348
申请日：1997-09-11
申请人： MITSUI CHEMICALS INC
发明人： OKADA KEIJI , TAKIMOTO KAZUYUKI , MATSUMOTO TETSUHIRO , MORIZONO KEN-ICHI
IPC分类号： C08K5/00 , C08K5/10 , C08K5/103 , C08L23/02 , C08L25/08
CPC分类号： C08K5/103 , C08K5/0008 , C08K5/10 , C08L23/02
摘要： The present invention provides a composition containing an alpha -olefin/aromatic vinyl compound copolymer, which has no chlorine content and can bring about formed products, such as films, sheets, pipes and tubes, exhibiting a moderate extensible elasticity and ability for adhering onto various surfaces together with superior properties in the transparency, fogging resistance, durablility of the fogging resistance and ability for restoring from strain. The composition comprises 99.5 - 90 weight % of a copolymer (A) of an alpha -olefin and an aromatic vinyl compound, the copolymer (A) being composed of 99.95 - 70 mole % of the structural unit derived from the alpha -olefin and 0.05 - 30 mole % of the structural unit derived from the aromatic vinyl compound and 0.5 - 10 weight % of an anti-fogging agent (B). -o

45. 发明专利

JP2002053615A ETHYLENE (CO)POLYMER AND ITS USE 失效
公开(公告)号：JP2002053615A
公开(公告)日：2002-02-19
申请号：JP2000384224
申请日：2000-12-18
申请人： MITSUI CHEMICALS INC
发明人： TAKAHASHI MAMORU , KASAI TETSUSHI , MATSUKAWA NAOTO , TSURU KAZUTAKA , MITANI MAKOTO , FUJITA TERUNORI , OTSUGI SHIRO , MATSUMOTO TETSUHIRO , TSUTSUI TOSHIYUKI
IPC分类号： 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
摘要： PROBLEM TO BE SOLVED: To provide an ethylene (co)polymer excellent in moldability and capable of providing a molded product excellent in mechanical strengths and fatigue characteristics, and further to provide a use thereof. SOLUTION: This ethylene (co)polymer is an ethylene homopolymer or a copolymer of the ethylene and a 4-20C α-olefin, and has

46. 发明专利

JP2002053614A ETHYLENE (CO)POLYMER AND ITS USE 失效
公开(公告)号：JP2002053614A
公开(公告)日：2002-02-19
申请号：JP2000384223
申请日：2000-12-18
申请人： MITSUI CHEMICALS INC
发明人： TAKAHASHI MAMORU , KASAI TETSUSHI , MATSUKAWA NAOTO , TSURU KAZUTAKA , MITANI MAKOTO , FUJITA TERUNORI , OTSUGI SHIRO , MATSUMOTO TETSUHIRO , TSUTSUI TOSHIYUKI
IPC分类号： 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
摘要： PROBLEM TO BE SOLVED: To provide an ethylene (co)polymer excellent in moldability and capable of providing a molded product excellent in mechanical strengths, and further to provide a use thereof. SOLUTION: This ethylene (co)polymer is an ethylene homopolymer or a copolymer of the ethylene and a 4-20C α-olefin, has

47. 发明专利

JP2000239312A CATALYST FOR POLYMERIZING OLEFIN AND OLEFIN POLYMERIZATION USING THE SAME 失效
公开(公告)号：JP2000239312A
公开(公告)日：2000-09-05
申请号：JP36279999
申请日：1999-12-21
申请人： MITSUI CHEMICALS INC
发明人： MATSUKAWA NAOTO , TSURU KAZUTAKA , NITAHARA MASATOSHI , SAITO JUNJI , MATSUMOTO TETSUHIRO , HAYASHI TETSUO , NAKANO TAKASHI , TANAKA EIJI , MITANI MAKOTO , FUJITA TERUNORI
IPC分类号： C08F10/00 , C08F4/64 , C08F4/659
摘要： PROBLEM TO BE SOLVED: To prepare a catalyst for polymerizing olefins, having high polymerizing reactivity at a high temperature and useful for polymerizing ethylene or the like by including a specific transition metal compound. SOLUTION: This catalyst is prepared by including a transition metal compound [e.g. a compound of formula II (wherein, tBu is t-butyl; nOctadecyl is n-octadecyl) or the like] of formula I [wherein, M is a transition metal of group IV-V; (m) is 1-5; Q is N or C having a substituent R2; A is O, S, N having a substituent R5 or the like; R1 is an aromatic hydrocarbon, an (alicyclic hydrocarbon-substituted) aliphatic hydrocarbon or the like; R2 to R5 are each H, a hydrocarbon or the like; (n) is a number satisfying the valence of M; X is H, a halogen or the like] in which the net charge parameter of a central metal M is

48. 发明专利

JPH10273557A RUBBER COMPOSITION FOR TIRE TREAD 失效
公开(公告)号：JPH10273557A
公开(公告)日：1998-10-13
申请号：JP33750897
申请日：1997-12-08
申请人： MITSUI CHEMICALS INC
发明人： OKADA KEIJI , TAKIMOTO KAZUYUKI , MORISONO KENICHI , MATSUMOTO TETSUHIRO
IPC分类号： B60C1/00 , C08F210/02 , C08L7/00 , C08L9/00 , C08L21/00 , C08L23/08
摘要： PROBLEM TO BE SOLVED: To obtain a rubber compsn. for tire treads which is excellent in strength properties, abrasion resistance, and braking performance on a wet road and has a low rolling resistance. SOLUTION: This compsn. contains an ethylene-arom. vinyl copolymer rubber and a diene rubber in a wt. ratio of (1/99)-(50/50). The former rubber is produced from ethylene (A), a 3C or higher α-olefin (B), an arom. vinyl compd. (C), and a nonconjugated diene (D) in a molar ratios of A/B and (A+B)/C of (100/0)-(40/60) and (99/1)-(85/15), respectively.

49. 发明专利

JPH10245457A ETHYLENIC COPOLYMER COMPOSITION, AND FILM, SHEET OR TUBE COMPOSED OF THE SAME 失效
公开(公告)号：JPH10245457A
公开(公告)日：1998-09-14
申请号：JP33753997
申请日：1997-12-08
申请人： MITSUI CHEMICALS INC
发明人： OKADA KEIJI , TAKIMOTO KAZUYUKI , MORISONO KENICHI , MATSUMOTO TETSUHIRO
IPC分类号： C08L23/08 , C08F4/82 , C08L25/08
摘要： PROBLEM TO BE SOLVED: To provide an ethylenic copolymer composition, having moderate elongation elasticity and tackiness and excellent in transparency, strength, strain recovery properties, blocking resistance and processability without containing chlorine, and to provide a film composed thereof. SOLUTION: The ethylenic copolymer composition and film consisting of the composition comprises (A) 10-90wt.% copolymer having >=10 and 10 and

50. 发明专利

JPH10182748A ETHYLENE-AROMATIC VINYL COMPOUND COPOLYMER FOR ELECTRIC INSULATOR, COMPOSITION FOR ELECTRIC INSULATOR, ELECTRIC WIRE-COVERING MATERIAL COMPRISING THE SAME COPOLYMER AND ELECTRIC WIRE 失效
公开(公告)号：JPH10182748A
公开(公告)日：1998-07-07
申请号：JP33750297
申请日：1997-12-08
申请人： MITSUI CHEMICALS INC
发明人： OKADA KEIJI , TAKIMOTO KAZUYUKI , MATSUMOTO TETSUHIRO , MORISONO KENICHI
IPC分类号： C08L23/08 , C08F4/82 , C08F210/02 , H01B3/44
摘要： PROBLEM TO BE SOLVED: To obtain the subject copolymer having a specific composition and crystallinity and reduced breakdown voltage drop caused by repeated impulses an useful for an electric wire, etc., by copolymerizing ethylene with an aromatic vinyl compound by using a metallocene catalyst. SOLUTION: This ethylene.aromatic vinyl compound copolymer contains 0.05-3mol% of a structural unit derived from an aromatic vinyl compound and has >=40% crystallinity and reduced breakdown voltage drop caused from repeated impulses with enlarged applying times of the repeated impulses till generating the insulation breakdown and useful for a covering materiel of an electric wire, etc. The copolymer is obtained by ethylene with an aromatic vinyl compound (e.g. styrene) in the presence of a metallocene catalyst comprising a bridge-type metallocene compound [e.g. isopropylidene bis(indenyl) zirconium dichloride].

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式