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
    • Polymerization process using catalysts comprising chromium on
silica/phosphate support
    • 使用在二氧化硅/磷酸盐载体上包含铬的催化剂的聚合方法
    • US4444963A
    • 1984-04-24
    • US423595
    • 1982-09-27
    • Max P. McDanielMarvin M. Johnson
    • Max P. McDanielMarvin M. Johnson
    • C08F10/00C08F4/02C08F4/24C08F4/62
    • C08F10/00
    • In one embodiment of this invention, a chromium component is supported on a silica/aluminum orthophosphate combination and used with an organometal cocatalyst. In accordance with other embodiments of the invention, the silica/phosphate combination for a chromium catalyst support is produced by either impregnating a silica xerogel with aluminum phosphate or boron phosphate, precipitating aluminum phosphate in the presence of a silica hydrogel, or physically mixing silica and aluminum phosphate xerogels. The resulting catalysts are capable of producing high melt flow olefin polymers and exhibit high activity. The resulting polymers have many unusual and desirable characteristics, such as high density and good environmental stress crack resistance.
    • 在本发明的一个实施方案中,铬组分负载在二氧化硅/正磷酸铝组合上并与有机金属助催化剂一起使用。 根据本发明的其它实施方案,用于铬催化剂载体的二氧化硅/磷酸盐组合是通过用磷酸铝或磷酸硼浸渍二氧化硅干凝胶,在二氧化硅水凝胶的存在下沉淀磷酸铝,或物理混合二氧化硅和 磷酸铝干凝胶。 所得催化剂能够生产高熔体流动的烯烃聚合物并表现出高的活性。 所得到的聚合物具有许多不寻常和期望的特征,例如高密度和良好的耐环境应力开裂性。
    • 84. 发明授权
    • Separation of monoolefins from diolefins
    • 单烯烃与二烯烃的分离
    • US4400564A
    • 1983-08-23
    • US140283
    • 1980-04-14
    • Marvin M. JohnsonDonald C. Tabler
    • Marvin M. JohnsonDonald C. Tabler
    • C07C7/156C07C7/148
    • C07C7/156Y02P20/582
    • A process and apparatus for separating monoolefins from diolefins comprising contacting a mixture of monoolefins and diolefins with a complexing agent selected from the group consisting of copper(I) salts of sulfonic acids and copper(I) salts of dialkylphosphates and a suitable hydrocarbon solvent for the complexing agent under such conditions that the monoolefins and diolefins form complexes with the complexing agent. The monoolefin complex can be separated from the diolefin complex based either on the relative solubilities of the two complexes in the hydrocarbon solvent for the complexing agent or based on the relative strengths of the two complexes.
    • 一种用于从二烯烃分离单烯烃的方法和装置,包括使单烯烃和二烯烃的混合物与选自以下的络合剂接触:选自由磺酸的铜(I)盐和磷酸二烷基酯的铜(I)盐和适用的烃溶剂, 络合剂在单烯烃和二烯烃与络合剂形成络合物的条件下。 可以基于两种络合物在用于络合剂的烃溶剂中的相对溶解度或基于两种络合物的相对强度,将二烯烃络合物与二烯烃络合物分离。
    • 85. 发明授权
    • Phosphate containing support with zerovalent chromium
    • 含有含铬的载体的磷酸盐
    • US4364841A
    • 1982-12-21
    • US221759
    • 1980-12-31
    • Max P. McDanielMarvin M. Johnson
    • Max P. McDanielMarvin M. Johnson
    • C08F4/00C08F4/24C08F4/60C08F10/00C08F4/02C08F4/62
    • C08F10/00
    • In accordance with one embodiment of this invention, a zerovalent chromium compound is introduced onto an activated phosphate-containing support and utilized in conjunction with an organometal cocatalyst, such as a trialkylborane. In accordance with another embodiment of this invention, a phosphate-containing xerogel is formed by removing water from an aluminum phosphate-containing hydrogel by means of azeotropic distillation or washing with a volatile, water miscible organic compound, activated and thereafter zerovalent chromium is incorporated therewith. In other embodiments of this invention, a phosphate-containing support is formed by forming aluminum phosphate from an aluminum alkoxide or from a melt, or by phosphating silica or alumina, or by forming an aluminum phosphate/silica combination. A support thus formed is activated and a zerovalent chromium compound added. The resulting catalysts are capable of giving high melt index, broad molecular weight distribution polymer, which polymer also exhibits other deviations from typical olefin polymers including lower flexural modulus. The catalyst is ideally suited for forming olefin polymers such as ethylene and ethylene copolymers in a slurry system.
    • 根据本发明的一个实施方案,将零价铬化合物引入到活化的含磷酸盐载体上并与有机金属助催化剂如三烷基硼烷结合使用。 根据本发明的另一个实施方案,通过共沸蒸馏或用挥发性水混溶性有机化合物洗涤从含磷酸铝的水凝胶中除去水而形成含磷酸盐的干凝胶,然后活化其中的零价铬 。 在本发明的其它实施方案中,通过由烷氧基铝或熔体形成磷酸铝,或通过磷酸二氧化硅或氧化铝,或通过形成磷酸铝/二氧化硅组合形成含磷酸盐的载体。 如此形成的载体被活化并加入零价铬化合物。 所得到的催化剂能够提供高熔体指数,宽分子量分布的聚合物,该聚合物还表现出与典型烯烃聚合物的其它偏差,包括较低的弯曲模量。 该催化剂理想地适用于在淤浆体系中形成烯烃聚合物如乙烯和乙烯共聚物。