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1. 发明授权

US4477656A Method for removing sodium salts from polyphosphazene polymer solutions 失效
标题翻译：从聚磷腈聚合物溶液中除去钠盐的方法
公开(公告)号：US4477656A
公开(公告)日：1984-10-16
申请号：US572271
申请日：1984-01-20
申请人： Trent F. Longo , Vispi R. Sagar , Mark L. Stayer
发明人： Trent F. Longo , Vispi R. Sagar , Mark L. Stayer
IPC分类号： C08G79/02 , C08G79/04
CPC分类号： C08G79/025
摘要： An improved method for removing sodium salts from mixtures of such salts and polyaryloxyphosphazene or polyalkoxyphosphazene or polyalkoxyaryloxyphosphazene polymer solutions is provided. The method involves first treating the mixture with an acid to neutralize any excess alkoxide or aryloxide. Then, water is added to the mixture to extract the sodium salts therefrom resulting in an at least partial separation of the mixture into a polyphosphazene polymer solution phase and a brine phase comprising water and the sodium salts. Following addition of the water to the mixture, a sulfated fatty acid ester of a natural non-petroleum based oil is added to the mixture to effect a more complete separation of the mixture into the polyphosphazene polymer solution phase and the brine phase. The polyphosphazene polymer solution phase is then separated from the brine phase.
摘要翻译：提供了一种用于从这些盐与聚芳基磷腈或聚烷氧基磷腈或聚烷氧基氧基磷腈聚合物溶液的混合物中除去钠盐的改进方法。该方法首先用酸处理混合物以中和任何过量的醇盐或芳氧化物。然后，将水加入到混合物中以从其中提取钠盐，从而将混合物至少部分分离成聚磷腈聚合物溶液相和包含水和钠盐的盐水相。在向混合物中加入水之后，向混合物中加入天然非石油基油的硫酸化脂肪酸酯，以使混合物更完全分离成聚磷腈聚合物溶液相和盐水相。然后将聚磷腈聚合物溶液相与盐水相分离。

2. 发明授权

US5433924A Method and apparatus for feeding a catalyst 失效
标题翻译：用于进料催化剂的方法和装置
公开(公告)号：US5433924A
公开(公告)日：1995-07-18
申请号：US220895
申请日：1994-03-31
申请人： Vispi R. Sagar , Scott K. Jackson
发明人： Vispi R. Sagar , Scott K. Jackson
IPC分类号： B01D39/20 , B01D46/00 , B01D46/24 , B01J8/00 , C08F2/00 , C08F2/34 , C08F10/00 , B01J8/08 , B65G53/36
CPC分类号： B01D46/2403 , B01D39/2034 , B01D39/2044 , B01D46/0012 , B01J8/002 , C08F10/00 , B01D2265/025
摘要： A catalyst feed system is described for intermittent delivery of supported and/or prepolymerized supported catalyst to a polymerization reactor. The system incorporates valves with cylindrical sealing surfaces as well as a venting stage incorporating a filter arranged such that it is self-cleaning.
摘要翻译：描述了催化剂进料系统用于将负载和/或预聚合的负载催化剂间歇递送到聚合反应器。该系统包括具有圆柱形密封表面的阀门以及包括过滤器的通风台，其布置成使其自清洁。

3. 发明授权

US5595950A Polymerization catalyst systems, their production and use 失效
标题翻译：聚合催化剂体系，其生产和使用
公开(公告)号：US5595950A
公开(公告)日：1997-01-21
申请号：US555349
申请日：1995-11-08
申请人： Vispi R. Sagar , Moses O. Jejelowo
发明人： Vispi R. Sagar , Moses O. Jejelowo
IPC分类号： C08F4/639 , C08F4/6392 , C08F10/00 , C08F4/02
CPC分类号： C08F10/00 , C08F4/63912 , C08F4/63916 , C08F4/6392 , Y10S526/943
摘要： This invention is generally directed toward a supported catalyst system useful for polymerizing olefins. The method for supporting the catalyst of the invention provides for a supported bulky ligand transition metal catalyst which when utilized in a polymerization process substantially reduces the reactor fouling and sheeting particularly in a gas phase polymerization process.
摘要翻译：本发明通常涉及用于聚合烯烃的负载型催化剂体系。支持本发明的催化剂的方法提供了一种负载的大体积配体过渡金属催化剂，其在聚合过程中使用时，特别是在气相聚合方法中，基本上减少了反应器的结垢和压片。

4. 发明授权

US4665152A Curable poly(aryloxyphosphazene) copolymers 失效
标题翻译：可固化聚（芳氧基磷腈）共聚物
公开(公告)号：US4665152A
公开(公告)日：1987-05-12
申请号：US773907
申请日：1985-09-09
申请人： William M. Cole , Joseph A. Dembek, Jr. , Vispi R. Sagar
发明人： William M. Cole , Joseph A. Dembek, Jr. , Vispi R. Sagar
IPC分类号： C08G79/00 , C08G79/02
CPC分类号： C08G79/025
摘要： Low or no chlorine content poly(aryloxyphosphazene) copolymers useful for fireproof foams are surprisingly produced in a one step process without use of excess phenoxide reactant over a shorter than conventional time period by (a) adding linear (NPCl.sub.2).sub.n to a mixture of phenoxides comprising alkali or alkaline earth metal phenoxide, alkylphenoxide and allylphenoxide in quantities such that the total of the phenoxides is the equivalent of the total chlorine atoms in the (NPCl.sub.2).sub.n and allylphenoxide is present in an amount equivalent to from about 2% to about 10% of the chlorine atoms in the (NPCl.sub.2).sub.n ; and (b) reacting the admixture formed in step (a) at a temperature ranging from about 280.degree. F. to about 320.degree. F. for a time period ranging from about 7 hours to about 10 hours.
摘要翻译：用于防火泡沫的低或无氯含量的聚（芳氧基磷腈）共聚物在一步法中令人惊奇地产生，而不用在比常规时间段短的情况下使用过量的酚盐反应物，通过（a）向苯氧化物混合物中加入线性（NPCl 2）包括碱金属或碱土金属酚盐，烷基苯氧基和烯丙基苯酚，其量使得苯酚的总量相当于（NPCl 2）n中的总氯原子和烯丙基苯酚的量相当于约2％至约10％（NPCl2）n中的氯原子的％; 和（b）使步骤（a）中形成的混合物在约280°至约320°F的温度下反应约7小时至约10小时的时间。

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