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    • 2. 发明授权
    • Anionic polymerization of cis- and trans-1,3-pentadiene from a mixture
of saturated and unsaturated hydrocarbons
    • 来自饱和和不饱和烃的混合物的顺式和反式-1,3-戊二烯的阴离子聚合
    • US4482771A
    • 1984-11-13
    • US559525
    • 1983-12-08
    • John W. BozzelliKent S. DennisFelipe A. Donate
    • John W. BozzelliKent S. DennisFelipe A. Donate
    • C08F4/46C08F36/00C08F36/04C08F240/00C07C1/16C07C2/02C07C2/74
    • C08F36/045
    • 1,3-Pentadiene is polymerized in an inert gaseous atmosphere from a mixture of saturated and unsaturated hydrocarbon molecules. At least 50 percent by weight of said molecules have 5 carbon atoms. An anionic polymerization initiator in conjunction with an organic polar solvent is used to effect polymerization. Cyclopentadiene, active hydrogen compounds and other polymerization-terminating compounds may be inactivated and separated from the mixture of hydrocarbon compounds before starting polymerization. As an alternative, inactivation and separation of cyclopentadiene, active hydrogen compounds and polymerization-terminating compounds may be omitted provided the anionic polymerization initiator is employed in an amount to (a) inactivate such compounds and (b) initiate polymerization of 1,3-pentadiene.The polymer of 1,3-pentadiene so prepared is then hydrogenated or functionalized by further reaction.
    • 1,3-丁二烯在惰性气体气氛中由饱和和不饱和烃分子的混合物聚合。 所述分子的至少50重量%具有5个碳原子。 使用与有机极性溶剂结合的阴离子聚合引发剂进行聚合。 在开始聚合之前,可以将环戊二烯,活性氢化合物和其它聚合终止化合物失活并与烃化合物的混合物分离。 作为替代方案,可以省略环戊二烯,活性氢化合物和聚合终止化合物的灭活和分离,只要阴离子聚合引发剂的用量为(a)灭活这些化合物和(b)引发1,3-戊二烯的聚合 。 然后将如此制备的1,3-戊二烯的聚合物通过进一步的反应氢化或官能化。
    • 4. 发明授权
    • Gelled organic liquid and method for making
    • 凝胶状有机液体及其制备方法
    • US4847318A
    • 1989-07-11
    • US146940
    • 1988-01-22
    • Kent S. Dennis
    • Kent S. Dennis
    • B01J19/06C08J3/09
    • C08J3/09B01J19/06C08J2353/00
    • An effective method for gelling certain organic liquids. The invention, in one embodiment, comprises forming a solution of the organic liquids and an amount of a triblock copolymer of relatively moderate molecular weight, having poly(4-vinylpyridene) end blocks and a small amount of a salt of a transition metal. In another embodiment, the invention comprises forming a solution of the organic liquids and an amount of a triblock copolymer of relatively moderate molecular weight, having poly(4-vinylpyridene) end blocks and a small amount of an acid. Such gelled liquids are useful as pipe line pigs, in automobile lacquers and in charcoal lighter fluids.
    • 一种有效的方法来胶凝某些有机液体。 在一个实施方案中,本发明包括形成有机液体溶液和一定量的具有相对中等分子量的三嵌段共聚物,其具有聚(4-乙烯基亚
      甲基)端嵌段和少量过渡金属的盐。 在另一个实施方案中,本发明包括形成有机液体溶液和一定量的具有相对中等分子量的三嵌段共聚物,其具有聚(4-乙烯基亚
      甲基)端嵌段和少量的酸。 这种胶凝液体可用作管线猪,汽车漆和木炭轻质液体。
    • 5. 发明授权
    • Preparation of triblock copolymers
    • 三嵌段共聚物的制备
    • US4839430A
    • 1989-06-13
    • US33444
    • 1987-04-01
    • Kent S. Dennis
    • Kent S. Dennis
    • C08F297/02
    • C08F297/023Y10S525/901Y10S525/941
    • Block copolymers are prepared by providing an initial anionically polymerizable monomer portion; anionically polymerizing the initial monomer portion to provide polymer chains with living ends, and contacting the polymer chains with m-bis(phenylethenyl)benzene (PEB), a coupling agent, to bring about substantial coupling. In preferred embodiments the polymer chain living ends are capped with an .alpha.-alkylstyrene or a ring-alkyl substituted .alpha.-alkylstyrene, wherein the .alpha.-alkyl groups contain between about 1 to about 20 carbon atoms, and the ring-alkyl groups have at least 2 carbon atoms. The coupling agents employed with the capped polymer chain living ends include PEB, p-dibromoxylene, terephthaloyl chloride, 1,4-dibromobutene; and the multifunctional epoxides, multifunctional isocyanates, multifunctional aziridines, multifunctional aldehydes, multifunctional ketones, multifunctional anhydrides, multifunctional esters, and polyhalides.
    • 通过提供初始的阴离子可聚合单体部分制备嵌段共聚物; 阴离子聚合初始单体部分以提供具有活性末端的聚合物链,并使聚合物链与偶联剂m-双(苯基苯基)苯(PEB)接触,以实现基本上的偶联。 在优选的实施方案中,聚合物链活性末端用α-烷基苯乙烯或环烷基取代的α-烷基苯乙烯封端,其中α-烷基含有约1至约20个碳原子,并且环烷基至少具有 2个碳原子。 与封端的聚合物链活性物质一起使用的偶联剂包括PEB,对二溴代苯,对苯二甲酰氯,1,4-二溴丁烯; 多官能异氰酸酯,多官能氮丙啶,多官能醛,多官能酮,多官能酸酐,多官能酯,多卤化物等多功能环氧化物。
    • 6. 发明授权
    • Preparation of triblock copolymers
    • 三嵌段共聚物的制备
    • US4885343A
    • 1989-12-05
    • US318788
    • 1989-03-03
    • Kent S. Dennis
    • Kent S. Dennis
    • C08F297/02
    • C08F297/023Y10S525/901Y10S525/941
    • Block copolymers are prepared by providing an initial anionically polymerizable monomer portion; anionically polymerizing the initial monomer portion to provide polymer chains with living ends, and contacting the polymer chains with m-bis(phenyletheynl)benzene (PEB), a coupling agent, to bring about substantial coupling. In preferred embodiments the polymer chain living ends are capped with an .alpha.-alkylstyrene or a ring-alkyl substituted .alpha.-alkylstyrene, wherein the .alpha.-alkyl groups contain between about 1 to about 20 carbon atoms. and the ring-alkyl groups have at least 2 carbon atoms. The coupling agents employed with the capped polymer chain living ends include PEB, p-dibromoxylene, terephthaloyl chloride, 1,4-dibromobutene; and the multifunctional epoxides, multifunctional isocyanates, multifunctional aziridines, multifunctional aldehydes, multifunctional ketones, multifunctional anhydrides, multifunctional esters, and polyhalides.
    • 通过提供初始的阴离子可聚合单体部分制备嵌段共聚物; 阴离子聚合初始单体部分以提供具有活性末端的聚合物链,并使聚合物链与m-双(苯乙烯)苯(PEB),偶联剂接触,以实现基本上的偶联。 在优选的实施方案中,聚合物链活性端被α-烷基苯乙烯或环烷基取代的α-烷基苯乙烯封端,其中α-烷基含有约1至约20个碳原子。 并且环 - 烷基具有至少2个碳原子。 与封端的聚合物链活性物质一起使用的偶联剂包括PEB,对二溴代苯,对苯二甲酰氯,1,4-二溴丁烯; 多官能异氰酸酯,多官能氮丙啶,多官能醛,多官能酮,多官能酸酐,多官能酯,多卤化物等多功能环氧化物。
    • 8. 发明授权
    • Transparent impact-resistant polystyrene structure
    • 透明抗冲击聚苯乙烯结构
    • US4100227A
    • 1978-07-11
    • US784483
    • 1977-04-04
    • Corwin J. BredewegKent S. DennisCharles E. Lyons
    • Corwin J. BredewegKent S. DennisCharles E. Lyons
    • C08F14/00C08F279/00C08F279/02C08L7/00C08L21/00C08L23/00C08L25/00C08L51/00C08L51/02C08L77/00C08L101/00
    • C08F279/02
    • An improved resinous structure is disclosed. The structure has a transparent resinous matrix of polystyrene, a light absorbance (optical density) at 640 millimicrons wave length which is not more than 0.10 when the structure has a thickness of 10 mils. The structure contains a discontinuous phase of a diene rubber in a proportion of about five to twelve parts by weight per hundred parts by weight of the structure. The rubber is present in the form of particles having an average diameter not exceeding about 2 microns. The particles are of a cellular nature and principally of a closed-cell configuration. The cell walls of the particles are not more than about 0.15 microns in thickness. The rubber particles contain occluded therein a polymer of a composition generally identical to the matrix polymer. Such resinous bodies are transparent, impact resistant, and suitable for many packaging applications.
    • 公开了一种改进的树脂结构。 该结构具有透明的聚苯乙烯树脂基质,640μm波长的吸光度(光密度),当该结构的厚度为10密耳时不超过0.10。 该结构包含二烯橡胶的不连续相,其比例为每100重量份结构约5至12重量份。 橡胶以平均直径不超过约2微米的颗粒的形式存在。 颗粒具有细胞性质并且主要是闭孔构型。 颗粒的细胞壁的厚度不超过约0.15微米。 橡胶颗粒中含有与基质聚合物基本相同的组合物的聚合物。 这种树脂体是透明的,耐冲击的,并且适用于许多包装应用。
    • 9. 发明授权
    • Preparation of triblock copolymers
    • 三嵌段共聚物的制备
    • US4956415A
    • 1990-09-11
    • US433649
    • 1989-11-07
    • Kent S. Dennis
    • Kent S. Dennis
    • C08F297/02
    • C08F297/023Y10S525/901Y10S525/941
    • Block copolymers are prepared by providing an initial anionically polymerizable monomer portion; anionically polymerizing the initial monomer portion to provide polymer chains with living ends, and contacting the polymer chains with m-bis(phenylethenyl)benzene (PEB), a coupling agent, to bring about substantial coupling. In preferred embodiments the polymer chain living ends are capped with an .alpha.-alkylstyrene or a ring-alkyl substituted .alpha.-alkylstyrene, wherein the .alpha.-alkyl groups contain between about 1 to about 20 carbon atoms, and the ring-alkyl groups have at least 2 carbon atoms. The coupling agents employed with the capped polymer chain living ends include PEB, p-dibromoxylene, terephthaloyl chloride, 1,4-dibromobutene; and the multifunctional epoxides, multifunctional isocyanates, multifunctional aziridines, multifunctional aldehydes, multifunctional ketones, multifunctional anhydrides, multifunctional esters, and polyhalides.
    • 通过提供初始的阴离子可聚合单体部分制备嵌段共聚物; 阴离子聚合初始单体部分以提供具有活性末端的聚合物链,并使聚合物链与偶联剂m-双(苯基苯基)苯(PEB)接触,以实现基本上的偶联。 在优选的实施方案中,聚合物链活性末端用α-烷基苯乙烯或环烷基取代的α-烷基苯乙烯封端,其中α-烷基含有约1至约20个碳原子,并且环烷基至少具有 2个碳原子。 与封端的聚合物链活性物质一起使用的偶联剂包括PEB,对二溴代苯,对苯二甲酰氯,1,4-二溴丁烯; 多官能异氰酸酯,多官能氮丙啶,多官能醛,多官能酮,多官能酸酐,多官能酯,多卤化物等多功能环氧化物。