Butene-1/4-vinylcyclohexene copolymer
    1.
    发明授权
    Butene-1/4-vinylcyclohexene copolymer 失效
    丁烯-1 / 4-乙烯基环己烯共聚物

    公开(公告)号:US4405772A

    公开(公告)日:1983-09-20

    申请号:US391202

    申请日:1982-06-23

    IPC分类号: C08F210/08 C08F236/20

    CPC分类号: C08F236/20 C08F210/08

    摘要: Solid copolymers of butene-1 and 4-vinylcyclohexene prepared by copolymerizing the monomers in the presence of a titanium halide coordination catalyst have an unobvious balance of properties including a broader molecular weight distribution, shorter crystallization half-time, greater isotacticity and greater crystallinity than butene-1 homopolymers prepared with identical catalysts.

    摘要翻译: 通过在卤化钛配位催化剂存在下共聚单体制备的丁烯-1和4-乙烯基环己烯的固体共聚物具有非常显着的性能平衡,包括比丁烯更宽的分子量分布,更短的结晶半衰期,更大的全同立构规整度和更大的结晶度 -1均聚物用相同的催化剂制备。

    Olefin polymerization
    3.
    发明授权
    Olefin polymerization 失效
    烯烃聚合

    公开(公告)号:US4451633A

    公开(公告)日:1984-05-29

    申请号:US409744

    申请日:1982-08-19

    摘要: Completely polymerizing olefinic monomer feed, in contact with a coordination catalyst suitable for olefin polymerization, in a mold having the shape of the article, at conditions under which the polymer is produced as a coherent, useful article in the shape of the interior of the mold, and removing the article from the mold. This method permits the production of polyolefin articles which are difficult or impossible to produce from polyolefin powder or pellets by conventional methods, such as articles of polyolefins of such high molecular weight that the polymer would not be processable by a melt process; articles containing extremely high filler loading; articles containing interconnected reinforcement; and articles from molds which require substantial flows through narrow passages.

    摘要翻译: 在适合于烯烃聚合的配位催化剂接触的烯烃单体进料在具有制品形状的模具中,在聚合物生产为模具内部形状的相干有用制品的条件下完全聚合 ,并将物品从模具中取出。 该方法允许生产由聚烯烃粉末或颗粒通过常规方法难以或不可能生产的聚烯烃制品,例如聚合物不能通过熔融方法加工的高分子量聚烯烃制品; 含有极高填料载量的物品; 包含互连钢筋的物品; 和来自模具的物品,其需要大量流动通过狭窄的通道。

    Use of viscosity as an in-line diagnostic for high internal phase
emulsion generation
    4.
    发明授权
    Use of viscosity as an in-line diagnostic for high internal phase emulsion generation 失效
    使用粘度作为高内相乳液生成的在线诊断

    公开(公告)号:US5394738A

    公开(公告)日:1995-03-07

    申请号:US185654

    申请日:1994-01-24

    摘要: A lightweight absorbent foam is produced using a high internal phase emulsion (HIPE), the production of which incorporates the use of capillary viscosity measurements as an in-line diagnostic for HIPE quality. The in-line diagnostics yield measurements of viscosity slope and amplitude. These measurements offer several advantages for monitoring emulsion quality, including stable high resolution measurement of hardware-independent parameters of the whole flow, without the need for sampling.

    摘要翻译: 使用高内相乳液(HIPE)生产轻质的吸收性泡沫,其生产包括使用毛细管粘度测量作为HIPE质量的在线诊断。 在线诊断产生粘度斜率和振幅的测量。 这些测量提供了监测乳液质量的几个优点,包括稳定的高分辨率测量整个流程的硬件无关参数,无需采样。

    Process for preparing low density porous crosslinked polymeric materials
    5.
    发明授权
    Process for preparing low density porous crosslinked polymeric materials 失效
    制备低密度多孔交联聚合物材料的方法

    公开(公告)号:US5358974A

    公开(公告)日:1994-10-25

    申请号:US159072

    申请日:1993-11-29

    摘要: In a process for the preparation of a low density porous crosslinked polymeric material by polymerizing a water-in-oil high internal phase emulsion, curing time of the monomers in the emulsion can be reduced without adversely affecting polymer properties by first advancing one or more of the monomers. All or a portion of the monomers are advanced in the presence of an advancement initiator or a free-radical-producing radiation source for about 5% to about 95% of the time effective to form a solid. Then, a water-in-oil high internal phase emulsion is formed with the advanced monomers and optionally additional monomers or the advanced monomers are added to a water-in-oil high internal phase emulsion containing other monomers. The emulsions containing the advanced monomers are cured. The process provides an improved method to incorporate volatile monomers in the porous polymeric material. The curing time is further reduced by carrying out the polymerization and crosslinking in the presence of a alkylperoxycarbonate or a alkylperoxycarboxylate polymerization initiator that is branched at the 1-position and/or the .alpha.-position.

    摘要翻译: 在通过聚合油包水高内相乳液制备低密度多孔交联聚合物材料的方法中,可以降低乳液中单体的固化时间,而不会不利地影响聚合物性质,首先推进一种或多种 单体。 全部或部分单体在提前引发剂或自由基产生辐射源存在下进行,约有效形成固体的约5%至约95%。 然后,将高级单体和任选的另外的单体或先进的单体加入到含有其它单体的油包水高内相乳液中形成油包水高相内乳液。 含有先进单体的乳液被固化。 该方法提供了将挥发性单体引入多孔聚合物材料中的改进方法。 通过在1位和/或α位上分支的过氧化碳酸烷基酯或烷基过氧羧酸酯聚合引发剂的存在下进行聚合和交联进一步降低固化时间。

    Process for preparing low density porous crosslinked polymeric materials
    6.
    发明授权
    Process for preparing low density porous crosslinked polymeric materials 失效
    制备低密度多孔交联聚合物材料的方法

    公开(公告)号:US5290820A

    公开(公告)日:1994-03-01

    申请号:US99018

    申请日:1993-07-29

    摘要: In a process for the preparation of a low density porous crosslinked polymeric material by polymerizing a water-in-oil high internal phase emulsion, curing time of the monomers in the emulsion can be reduced without adversely affecting polymer properties by first advancing one or more of the monomers. All or a portion of the monomers are advanced in the presence of an advancement initiator or a free-radical-producing radiation source for about 5% to about 95% of the time effective to form a solid. Then, a water-in-oil high internal phase emulsion is formed with the advanced monomers and optionally additional monomers or the advanced monomers are added to a water-in-oil high internal phase emulsion containing other monomers. The emulsions containing the advanced monomers are cured. The process provides an improved method to incorporate volatile monomers in the porous polymeric material. The curing time is further reduced by carrying out the polymerization and crosslinking in the presence of a alkylperoxycarbonate or a alkylperoxycarboxylate polymerization initiator that is branched at the 1-position and/or the .alpha.-position.

    摘要翻译: 在通过聚合油包水高内相乳液制备低密度多孔交联聚合物材料的方法中,可以降低乳液中单体的固化时间,而不会不利地影响聚合物性质,首先推进一种或多种 单体。 全部或部分单体在提前引发剂或自由基产生辐射源存在下进行,约有效形成固体的约5%至约95%。 然后,将高级单体和任选的另外的单体或先进的单体加入到含有其它单体的油包水高内相乳液中形成油包水高相内乳液。 含有先进单体的乳液被固化。 该方法提供了将挥发性单体引入多孔聚合物材料中的改进方法。 通过在1位和/或(α)位上分支的过氧化碳酸烷基酯或烷基过氧羧酸酯聚合引发剂的存在下进行聚合和交联进一步降低固化时间。

    Methyl alkylation of toluene using basic zeolite catalysts
    7.
    发明授权
    Methyl alkylation of toluene using basic zeolite catalysts 失效
    使用碱性沸石催化剂甲苯烷基化甲苯

    公开(公告)号:US5015796A

    公开(公告)日:1991-05-14

    申请号:US450799

    申请日:1989-12-14

    IPC分类号: B01J29/06 C07C2/86

    摘要: This invention relates to a process for the alkylation of methylbenzene to produce ethylbenzene and styrene. In this process methylbenzene and methanol are contacted with a catalyst formed from a zeolite and an alkali(ne earth) metal compound wherein said compound is selected from alkaline earth metal compound and a mixture of alkaline earth metal compound and alkali metal compound and wherein the sum of the amount of the alkali(ne earth) metal in the compound plus any metal cation exchanged into the zeolite is in excess of that required to provide a fully metal cation-exchanged zeolite.

    摘要翻译: 本发明涉及甲苯烷基化生产乙苯和苯乙烯的方法。 在该方法中,甲苯和甲醇与由沸石和碱(ne earth)金属化合物形成的催化剂接触,其中所述化合物选自碱土金属化合物和碱土金属化合物与碱金属化合物的混合物,其中总和 化合物中加上任何金属阳离子交换成沸石的碱金属(碱土金属)的量超过提供完全金属阳离子交换的沸石所需的量。

    Termination of anionic polymerization using hydrocarbon terminating
agents
    8.
    发明授权
    Termination of anionic polymerization using hydrocarbon terminating agents 失效
    使用烃终止剂终止阴离子聚合

    公开(公告)号:US5194530A

    公开(公告)日:1993-03-16

    申请号:US929747

    申请日:1992-08-17

    IPC分类号: C08C19/44 C08F2/38 C08F2/42

    CPC分类号: C08F2/42 C08C19/44

    摘要: This is an improvement upon a process which comprises anionically polymerizing monomers with an anionic polymerization initiator in a suitable solvent thereby creating a living polymer. The improvement comprises terminating the polymerization by the addition of a terminating agent selected from the group consisting of hydrocarbons containing a C-H group where the carbon is connected directly to a triply-bound carbon, hydrocarbons containing a C-H group where the carbon is connected directly to two doubly-bound carbons and hydrocarbons containing a C-H group where the carbon is connected directly to at least 2 aromatic rings, whereing none of said hydrocarbons contain additional aliphatic unsaturation.

    摘要翻译: 这是对包括阴离子聚合单体与阴离子聚合引发剂在合适溶剂中的方法的改进,从而产生活性聚合物。 改进包括通过加入终止剂终止聚合,所述终止剂选自包含CH基团的碳,其中碳直接连接至三键结合的碳,含有CH基团的碳直接连接到两个碳上 双键结合的碳和含有CH基团的烃,其中碳直接连接到至少2个芳环上,其中所述烃不含有另外的脂族不饱和键。

    Process for cracking paraffins to olefins
    9.
    发明授权
    Process for cracking paraffins to olefins 失效
    将烯烃裂解成烯烃的方法

    公开(公告)号:US5159128A

    公开(公告)日:1992-10-27

    申请号:US803764

    申请日:1991-12-05

    IPC分类号: B01J23/02 B01J29/08 C07C4/06

    摘要: This invention is a process for the catalytic cracking of parafins to produce olefins in high yield while minimizing production of aromatics. The catalyst used is a zeolite in combination with an alkali(ne earth) metal compound wherein the sum of the amount of the alkali(ne earth) metal in the compound plus any metal cation exchanged into the zeolite is in excess of that required to provide a fully metal cation-exchanged zeolite.

    摘要翻译: 本发明是一种在最小化芳族化合物生产的同时以高产率催化裂解石蜡以生产烯烃的方法。 所使用的催化剂是与碱(ne earth)金属化合物组合的沸石,其中化合物中加入的任何金属阳离子中的碱金属(ne earth)金属的总和超过提供 完全金属阳离子交换的沸石。