IMPROVED ALKANOLYSIS PROCESS AND METHOD FOR SEPARATING CATALYST FROM PRODUCT MIXTURE AND APPARATUS THEREFOR
    11.
    发明申请
    IMPROVED ALKANOLYSIS PROCESS AND METHOD FOR SEPARATING CATALYST FROM PRODUCT MIXTURE AND APPARATUS THEREFOR 审中-公开
    用于分离产物混合物中的催化剂的改进的碱溶解方法和方法及其装置

    公开(公告)号:WO2013191987A1

    公开(公告)日:2013-12-27

    申请号:PCT/US2013/045412

    申请日:2013-06-12

    Abstract: The present invention provides an improved process and apparatus for alkanolysis of polytetramethylene ether diacetate to polytetraalkylene ether glycol in the presence of a C1 to C4 alkanol and an alkali or alkaline earth metal catalyst wherein the catalyst component of the product mixture comprising polytetraalkylene ether glycol, alkanol and catalyst, essentially free of the alkanol acetate by-product, e.g., methyl acetate is removed by contacting the mixture in the absence of added water with certain ion exchange resin at specified contact conditions. The invention further provides a highly efficient method for removing the catalyst component of a mixture comprising polytetraalkylene ether glycol, alkanol and alkali or alkaline earth metal catalyst by contacting the mixture in the absence of added water with certain ion exchange resin at specified contact conditions,

    Abstract translation: 本发明提供了在C1至C4链烷醇和碱金属或碱土金属催化剂存在下将聚四亚甲基醚二乙酸酯分解成聚四亚乙基醚二醇的改进方法和装置,其中产物混合物的催化剂组分包含聚四亚乙基醚二醇,链烷醇 和催化剂,基本上不含链烷醇乙酸酯副产物,例如,在特定接触条件下,通过在不加入水的情况下将某些离子交换树脂与混合物接触来除去乙酸甲酯。 本发明还提供了一种用于通过在不存在加入水的情况下将混合物与特定的离子交换树脂在特定的接触条件下接触来除去包含聚四亚烷基醚二醇,链烷醇和碱金属或碱土金属催化剂的混合物的催化剂组分的高效方法,

    IMPROVED METHOD FOR PREVENTING PRESSURE BUILD UP IN A CATALYST SEPARATION SYSTEM
    12.
    发明申请
    IMPROVED METHOD FOR PREVENTING PRESSURE BUILD UP IN A CATALYST SEPARATION SYSTEM 审中-公开
    用于防止在催化分离系统中建立压力的改进方法

    公开(公告)号:WO2013006287A1

    公开(公告)日:2013-01-10

    申请号:PCT/US2012/043737

    申请日:2012-06-22

    CPC classification number: C08G65/2696 Y02P20/584

    Abstract: A method for preventing pressure build-up across a catalyst separation in a polyether polyol reactor comprising the steps of feeding reactants that comprise a monomer or co-monomers to be polymerized to form the polyether polyol into a continuous feed reactor, flowing the product stream through a catalyst separation system within the reactor, wherein the catalyst separation system is comprised of a plurality of filters, wherein each filter comprises an outer surface and an inner surface defined by a plurality of spaced-apart elements, and wherein the distance between the spaced-apart elements is smaller than the minor dimension of the suspended catalyst and recovering the filtered polyether polyol product and catalyst fines from the reactor outlet.

    Abstract translation: 一种用于防止在聚醚多元醇反应器中催化剂分离的压力累积的方法,包括以下步骤:将包含待聚合的单体或共聚单体的反应物进料到连续进料反应器中,使产物流通过 反应器内的催化剂分离系统,其中催化剂分离系统由多个过滤器组成,其中每个过滤器包括由多个间隔开的元件限定的外表面和内表面,并且其中, 分离的元素小于悬浮催化剂的次要尺寸,并从反应器出口回收过滤的聚醚多元醇产物和催化剂细粒。

    VARIABLE PRESSURE DROP UP FLOW-PRE-POLYMERIZER (UFPP) SYSTEMS AND METHODS
    13.
    发明申请
    VARIABLE PRESSURE DROP UP FLOW-PRE-POLYMERIZER (UFPP) SYSTEMS AND METHODS 审中-公开
    可变压力下降流量预聚合器(UFPP)系统和方法

    公开(公告)号:WO2012170351A2

    公开(公告)日:2012-12-13

    申请号:PCT/US2012/040745

    申请日:2012-06-04

    Abstract: Disclosed are processes and systems for manufacturing polyethylene terephthalate (PET) and pre-polymer. The processes and systems use a variable pressure drop up-flow-pre-polymerizer configuration. The pressure profile in the UFPP can be selected to beneficially change the relative reaction rates of the polymerization and esterification reactions. This design maximizes the esterification carried out in the UFPP, while still producing a pre-polymer with the optimum carboxyl end groups concentration {e.g., about 30 μ equiv./g to 60 μ equiv./g) to maximize finisher productivity. This can result in a reduction of the size and cost of the esterifier required for a given plant throughput.

    Abstract translation: 公开了用于制造聚对苯二甲酸乙二醇酯(PET)和预聚物的方法和系统。 过程和系统使用可变的压降上升预聚合器配置。 可以选择UFPP中的压力分布,有利地改变聚合和酯化反应的相对反应速率。 该设计最大化了在UFPP中进行的酯化,同时仍然产生具有最佳羧基端基浓度(例如约30μ当量/ g至60μ当量/ g)的预聚物,以最大化最终生产率。 这可能导致给定工厂产量所需的酯化剂的尺寸和成本的降低。

    PRODUCTION OF AROMATIC CARBOXYLIC ACIDS
    14.
    发明申请
    PRODUCTION OF AROMATIC CARBOXYLIC ACIDS 审中-公开
    生产芳香羧酸

    公开(公告)号:WO2012071150A2

    公开(公告)日:2012-05-31

    申请号:PCT/US2011/059073

    申请日:2011-11-03

    Abstract: Disclosed are processes and systems for the improved production of aromatic carboxylic acids, such as purified terephthalic acid. The processes result in the use of a smaller distillation device to more efficiently recover the carboxylic acid solvent throughout various stages of the PTA process when compared to known processes. The smaller distillation device is achieved by using downstream water treatment devices and organic compound extraction devices to further separate organic compounds from the aqueous byproduct streams.

    Abstract translation: 公开了用于改进生产芳族羧酸的方法和系统,例如纯化的对苯二甲酸。 当与已知方法相比时,该方法导致使用较小的蒸馏装置以更有效地回收PTA方法的各个阶段的羧酸溶剂。 较小的蒸馏装置通过使用下游水处理装置和有机化合物提取装置来进一步从含水副产物流中分离有机化合物来实现。

    BIO-BASED TERPOLYMERS AND PROCESS OF MAKING THE SAME
    15.
    发明申请
    BIO-BASED TERPOLYMERS AND PROCESS OF MAKING THE SAME 审中-公开
    基于生物的TERPOLYMERS及其制备方法

    公开(公告)号:WO2011094673A2

    公开(公告)日:2011-08-04

    申请号:PCT/US2011/023147

    申请日:2011-01-31

    Abstract: Polyamide terpolymer compositions, which contain biobased monomers and are suitable for making shaped articles, are disclosed. Comprised of three monomeric species polymerized randomly, including hexamethylene diamine, adipic acid and a bio-based monomer, the compositions are easier to process and have better dye uniformity than polyamides formed from melt-blended biobased components, and are comparable in dyeability, color fastnessand appearance retention performance to non-biobased polyamide copolymers.

    Abstract translation: 公开了含有生物基单体并且适于制成成形制品的聚酰胺三元共聚物组合物。 包含六种亚甲基二胺,己二酸和生物基单体随机聚合的三种单体物质,其组成比由熔融共混的生物基组分形成的聚酰胺更容易加工并且具有更好的染料均匀性,并且在染色性,色牢度和 对非生物基聚酰胺共聚物的外观保持性能。

    AQUEOUS SILSESQUIOXANE DISPERSIONS HAVING LOW CONCENTRATIONS OF REACTION BYPRODUCTS
    18.
    发明申请
    AQUEOUS SILSESQUIOXANE DISPERSIONS HAVING LOW CONCENTRATIONS OF REACTION BYPRODUCTS 审中-公开
    具有低反应性浓度的水性硅油分散体

    公开(公告)号:WO2010105071A2

    公开(公告)日:2010-09-16

    申请号:PCT/US2010/027008

    申请日:2010-03-11

    Abstract: Methods of making a composition are disclosed, which comprises: i) forming a dispersion of particles comprising: a) silica, b) a non- volatile cation, and c) water, wherein the non-volatile cation is not ammonium; ii) adding at least one organosilyl coupling agent of formula R 1 -(R 2 -O) 3 -Si where R 1 is selected from the group consisting of a substituted alkyl and unsubstituted alkyl, and R 2 is selected from the group consisting of methyl, ethyl, propyl and butyl, wherein the substituted alkyl of R 1 is not aminoalkyl; iii) reacting the organosilyl coupling agent with the dispersion of particles to form a mixture comprising a silsesquioxane and an alcohol; and iv) removing the alcohol from the mixture by vacuum distillation, wherein final concentration of the alcohol is about 1% by weight or less of the total mixture. Further disclosed are compositions comprising an aqueous dispersion comprising silsesquioxane, a non- volatile cation and an alcohol, and methods of using the composition.

    Abstract translation: 公开了制备组合物的方法,其包括:i)形成颗粒分散体,其包括:a)二氧化硅,b)非挥发性阳离子,和c)水,其中所述非挥发性阳离子不是铵; ii)加入至少一种式R1-(R2-O)3-Si的有机甲硅烷基偶联剂,其中R1选自取代的烷基和未取代的烷基,R2选自甲基,乙基, 丙基和丁基,其中R 1的取代的烷基不是氨基烷基; iii)使有机甲硅烷基偶联剂与颗粒分散体反应形成包含硅倍半氧烷和醇的混合物; 和iv)通过真空蒸馏从混合物中除去醇,其中醇的最终浓度为总混合物的约1重量%或更少。 进一步公开的是包含含有倍半硅氧烷,非挥发性阳离子和醇的水分散体的组合物和使用该组合物的方法。

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