会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 6. 发明授权
    • Catalyst for polyester production, process for producing polyester using the catalyst, polyester obtained by the process, and uses of the polyester
    • 用于聚酯生产的催化剂,使用催化剂生产聚酯的方法,通过该方法获得的聚酯和聚酯的用途
    • US06346070B1
    • 2002-02-12
    • US09470664
    • 1999-12-22
    • Takeshi OhmatsuzawaFujito EharaHideshi HoriKazuo ToyotaKenzaburou FukutaniJunichi ImutaAkiyoshi ShimizuTakayuki OnogiSeiji NodaMasayuki SakaiShoji HiraokaKoji NakamachiMichio TsugawaSatoru Miyazoe
    • Takeshi OhmatsuzawaFujito EharaHideshi HoriKazuo ToyotaKenzaburou FukutaniJunichi ImutaAkiyoshi ShimizuTakayuki OnogiSeiji NodaMasayuki SakaiShoji HiraokaKoji NakamachiMichio TsugawaSatoru Miyazoe
    • C08G6378
    • C08G63/85C08G63/183C08G63/82C08G63/88
    • The present invention provides a catalyst for polyester production capable of producing a polyester with high catalytic activity and a process for producing a polyester using the catalyst. The catalyst for polyester production comprises a solid titanium compound which is obtained by dehydro-drying a hydrolyzate obtained by hydrolysis of a titanium halide and which has a molar ratio (OH/Ti) of a hydroxyl group (OH) to titanium (Ti) exceeding 0.09 and less than 4. The present invention also provides a method to obtain a polyester having a small increase of the acetaldehyde content during the molding. This method comprises bringing a polyester, which is obtained by the use of a titanium compound catalyst and in which the reaction has been completed, into contact with a phosphoric ester aqueous solution or the like having a concentration of not less than 10 ppm in terms of phosphorus atom. The present invention further provides a polyester having excellent transparency and tint and molded products of the polyester such as a blow molded article, a film, a sheet and a fiber. The polyester is obtained by polycondensing an aromatic dicarboxylic acid or an ester-forming derivative thereof and an aliphatic diol or an ester-forming derivative thereof in the presence of a catalyst for polyester production which comprises a polycondensation catalyst component comprising a solid titanium compound and a co-catalyst component comprising a magnesium compound. This polyester has a titanium content of 1 to 100 ppm, a magnesium content of 1 to 200 ppm and a weight ratio (Mg/Ti) of magnesium to titanium of not less than 0.01.
    • 本发明提供一种能够生产具有高催化活性的聚酯的聚酯制造催化剂和使用该催化剂生产聚酯的方法。 用于聚酯生产的催化剂包括固体钛化合物,其通过脱水干燥由卤化钛水解得到的水解产物并且具有羟基(OH)与钛(Ti)的摩尔比(OH / Ti)超过钛 0.09以上且低于4.本发明还提供一种在成型时获得乙醛含量增加少的聚酯的方法。 该方法包括使通过使用钛化合物催化剂获得的反应已完成的聚酯与浓度不小于10ppm的磷酸酯水溶液等接触,换算为 磷原子。 本发明还提供一种聚酯,其具有优异的透明度和色调,并且聚酯的成型产品如吹塑制品,薄膜,片材和纤维。 在聚酯制造用催化剂的存在下,通过将芳香族二羧酸或其成酯性衍生物和脂肪族二醇或其成酯衍生物缩聚得到聚酯,该催化剂包括含有固体钛化合物的缩聚催化剂组分和 助催化剂组分包含镁化合物。 该聚酯的钛含量为1〜100ppm,镁含量为1〜200ppm,镁与钛的重量比(Mg / Ti)为0.01以上。
    • 7. 发明授权
    • Olefin polymerization catalyst, process for preparing olefin polymer,
and olefin polymer
    • 烯烃聚合催化剂,制备烯烃聚合物的方法和烯烃聚合物
    • US6004897A
    • 1999-12-21
    • US683068
    • 1996-07-16
    • Junichi ImutaMasayasu YoshidaYasushi Tohi
    • Junichi ImutaMasayasu YoshidaYasushi Tohi
    • C07F17/00C08F4/42C08F4/64C08F4/642C08F4/659C08F4/6592C08F10/00C08F110/02C08F110/06C08F210/16
    • C07F17/00C08F10/00C08F110/02C08F110/06C08F210/16C08F4/65908C08F4/65912C08F4/65916C08F4/65927Y10S526/943
    • 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. ##STR1## wherein, M is a transition metal of Group IVB, at least one of R.sup.1 is an aryl group and the remainder is hydrogen or the like, R.sup.2 is hydrogen, an alkyl group or the like, R.sup.3 and R.sup.4 are each hydrogen, an alkyl group or the like, R.sup.6 is hydrogen, an alkyl group or the like, R.sup.7 is hydrogen, an alkyl group or the like, any one of R.sup.8 and R.sup.9 is an alkyl group, and X.sup.1 and X.sup.2 are each halogen, a hydrocarbon group or the like.
    • 本发明的烯烃聚合催化剂由下式(I)表示的ⅣB族过渡金属化合物和有机铝氧化合物或与过渡金属化合物反应形成离子对的化合物形成。 在使用该催化剂的本发明的烯烃聚合方法或由下式(II)表示的IVB族过渡金属化合物和有机铝氧化合物或与过渡金属化合物反应形成离子的化合物形成的催化剂 可以以高聚合活性获得具有高分子量的烯烃(共)聚合物,并且即使使用少量共聚单体,也可以获得具有高共聚单体含量的烯烃共聚物。 其中,M是IVB族的过渡金属,R 1中的至少一个是芳基,其余是氢等,R 2是氢,烷基等,R 3和R 4各自是氢,烷基 R 6为氢,烷基等,R 7为氢,烷基等,R 8和R 9中的任一个为烷基,X 1和X 2各自为卤素,烃基或 喜欢。