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
    • 81. 发明授权
    • Process for the dewaxing of hydrocarbon fractions
    • 烃馏分脱蜡方法
    • US4572779A
    • 1986-02-25
    • US579171
    • 1984-02-10
    • Kazuyoshi IwayamaTakehisa InoueKimio SatoNorio HayakawaMasaki Fujii
    • Kazuyoshi IwayamaTakehisa InoueKimio SatoNorio HayakawaMasaki Fujii
    • C10G73/02B01J29/40B01J29/70C01B39/38C10G45/64
    • C10G45/64B01J29/40B01J29/70C01B39/38B01J2229/26B01J2229/42
    • A process for improving the fluidity of hydrocarbon fractions by dewaxing thereof. In the present process, hydrocarbon fractions are contacted with hydrogen in the presence of a specific type of catalyst, thereby lowering the pour point of the hydrocarbon fraction. The catalyst comprises a specific type of zeolite which is defined by a specific X-ray diffraction pattern and which has a predetermined range of mesitylene adsorption of not less than 1.6 wt %. The zeolite catalyst is obtained by providing an aqueous reaction mixture of SiO.sub.2, Al.sub.2 O.sub.3, an alkaline source as OH.sup.-, and a carboxyl group-containing organic compound having the following composition:______________________________________ SiO.sub.2 /Al.sub.2 O.sub.3 20-60 H.sub.2 O/SiO.sub.2 5-100 OH.sup.- /SiO.sub.2 0.1-0.35 ______________________________________ and reacting the mixture until crystals are produced. Advantageously, the ratio of the carboxyl group-containing organic compound to aluminum oxide is about 1.0 to 100.
    • 通过脱蜡改善烃馏分的流动性的方法。 在本方法中,在特定催化剂存在下,使烃馏分与氢接触,从而降低烃馏分的倾点。 该催化剂包括由特定的X射线衍射图定义并且具有不小于1.6重量%的均三甲苯吸附的预定范围的特定类型的沸石。 沸石催化剂通过提供SiO 2,Al 2 O 3,碱性源作为OH-的含水反应混合物和具有以下组成的含羧基的有机化合物获得:-SiO 2 / Al 2 O 3 20-60 -H 2 O / SiO 2 5-100 -OH- / SiO 2 0.1-0.35 - 并使混合物反应直至产生晶体。 有利地,含羧基的有机化合物与氧化铝的比例为约1.0至100。
    • 83. 发明授权
    • Propylene copolymers
    • 丙烯共聚物
    • US4308361A
    • 1981-12-29
    • US152605
    • 1980-05-23
    • Masaki FujiiMitsutaka Miyabayashi
    • Masaki FujiiMitsutaka Miyabayashi
    • C08F210/06C08F297/08C08F210/14C08F293/00
    • C08F210/06C08F297/08
    • A copolymer of propylene and a straight-chain .alpha.-olefin of 5 to 12 carbon atoms is characterized in that: its intrinsic viscosity is 0.3 to 15 dl./g. (at 135.degree. C., in decalin); it contains 3 to 30 percent by weight of the .alpha.-olefin; and when it is subjected to successive extraction with o-dichlorobenzene at 40.degree. C. and 80.degree. C., the quantities, fusion peak temperatures, and content of the .alpha.-olefin of the resulting fractions are respectively within specific limits of values. A preferred copolymer contains about 0.5 to 50 percent of a propylene homopolymer block and about 99.5 to 50 percent of a random copolymer block of propylene and a straight chain .alpha.-olefin having 5 to 12 carbon atoms.
    • 丙烯与5-12个碳原子的直链α-烯烃的共聚物的特征在于:其特性粘度为0.3-15dl / g。 (在135℃,在十氢化萘中); 它含有3-30重量%的α-烯烃; 当在40℃和80℃下用邻二氯苯进行连续萃取时,得到的馏分的数量,熔融峰温度和α-烯烃的含量分别在特定的值范围内。 优选的共聚物包含约0.5至50%的丙烯均聚物嵌段和约99.5至50%的丙烯无规共聚物嵌段和具有5至12个碳原子的直链α-烯烃。