Method for production of medium and high molecular weight polyesters
    1.
    发明专利
    Method for production of medium and high molecular weight polyesters 有权
    生产中高分子量聚酯的方法

    公开(公告)号:JP2013231193A

    公开(公告)日:2013-11-14

    申请号:JP2013142533

    申请日:2013-07-08

    CPC classification number: C08G63/81

    Abstract: PROBLEM TO BE SOLVED: To provide a method which is more conveniently used to produce non-solid products (e.g., polyester coatings) initially before employing pelletized solid polyester resins in consideration of: shortening the cycle time of polyester production; obtaining products in a syrup form; and containing a polymer and a nonreactive carrier.SOLUTION: An oligomer is converted into a polymer by polycondensation at high temperature under high pressure in a nonreactive carrier capable of forming an azeotrope with water, and medium and high molecular weight polyester polymers are produced in a syrup form from an ester oligomer. The oligomerization and polycondensation reactions are monitored using a non-viscometric measurement method.

    Abstract translation: 要解决的问题:提供一种在考虑到缩短聚酯生产的循环时间之前,最初在使用颗粒状固体聚酯树脂之前更方便地用于生产非固体产品(例如聚酯涂层)的方法; 以糖浆形式获得产品; 并含有聚合物和非反应性载体。溶液:通过在高温下高温下在能与水形成共沸物的非反应性载体中进行缩聚,将低聚物转化为聚合物,中高分子量聚酯聚合物 来自酯低聚物的糖浆形式。 使用非粘度测量方法监测低聚和缩聚反应。

    PROCESS FOR MANUFACTURING MEDIUM AND HIGH MOLECULAR WEIGHT POLYESTERS
    2.
    发明申请
    PROCESS FOR MANUFACTURING MEDIUM AND HIGH MOLECULAR WEIGHT POLYESTERS 审中-公开
    制造中高分子量聚酯的方法

    公开(公告)号:WO2009102314A3

    公开(公告)日:2010-06-24

    申请号:PCT/US2008053221

    申请日:2008-02-06

    CPC classification number: C08G63/78

    Abstract: Medium and high molecular weight polyester polymers are prepared in syrup form from an ester oligomer. The oligomer is converted to the polymer by polycondensation at atmospheric pressure and elevated temperature in a nonreactive carrier capable of forming an azeotrope with water. The ester oligomerization or polycondensation reactions desirably are monitored using a non-viscometric technique. The process has a rapid cycle time. The syrup contains the polymer and nonreactive carrier, and may more conveniently be used to make initially non-solid products such as polyester coatings than is the case when employing pelletized solid polyester resins.

    Abstract translation: 中等和高分子量聚酯聚合物由糖浆形式由酯低聚物制备。 通过在大气压和升高的温度下在能与水形成共沸物的非反应性载体中缩聚将低聚物转化成聚合物。 酯低聚或缩聚反应期望使用非粘度技术监测。 该过程具有快速的循环时间。 糖浆含有聚合物和非反应性载体,与使用造粒的固体聚酯树脂的情况相比,可以更方便地用于制备最初的非固体产品如聚酯涂层。

    6.
    发明专利
    未知

    公开(公告)号:BRPI0714014A2

    公开(公告)日:2012-12-04

    申请号:BRPI0714014

    申请日:2007-07-09

    Abstract: The present invention provides a coating composition, a method of coating a substrate, and a coated substrate, (e.g., a coated cemented fiberboard article). In preferred embodiments the coating composition includes one or more latex polymers and an aliphatic epoxy resin system. The coating composition can include one or more coating compositions that may be applied in one or more layers. A coated article comprising a cement fiberboard substrate and a coating system applied to the substrate is also provided. The article includes a first coating system applied to the substrate, wherein the first coating system includes an aliphatic epoxy resin system having an aqueous dispersion of polymer particles, optionally a silicate additive, and optionally one or more olefinic compounds and initiator for same. The first coating system preferably includes one or more coating compositions that may be applied in one or more layers. In a preferred embodiment, the first coating system is applied to all the surfaces of the substrate (e.g., the front side, back side and edges of a board). The coated substrate may then be coated with other optional coatings, e.g., decorative or protective topcoats.

    PROCESO PARA FABRICAR POLIESTERES DE PESO MOLECULAR MEDIO Y ALTO.

    公开(公告)号:MX2010008605A

    公开(公告)日:2010-08-31

    申请号:MX2010008605

    申请日:2008-02-06

    Abstract: Se preparan polímeros de poliéster de peso molecular medio y alto en forma de jarabe a partir de un oligómero de éster. El oligómero es convertido al polímero mediante policondensación a presión atmosférica y temperatura elevada en un portador no reactivo capaz de formar un azeótropo con agua. Las reacciones de oligomerización de éster o policondensación son monitoreadas deseablemente usando una técnica no viscométrica. El proceso tiene un tiempo de ciclo rápido. El jarabe contiene el polímero y portador no reactivo, y puede usarse más convenientemente para hacer productos no sólidos inicialmente, tales como recubrimientos de poliéster que es el caso cuando se emplean resinas de poliéster sólidas pelletizadas.

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