Robust Resin For Solvent-Free Emulsification
    1.
    发明申请
    Robust Resin For Solvent-Free Emulsification 有权
    坚固的无溶剂乳化树脂

    公开(公告)号:US20130245197A1

    公开(公告)日:2013-09-19

    申请号:US13423851

    申请日:2012-03-19

    CPC分类号: C08G63/12 C08G63/78

    摘要: A branched polyester suitable for use in solvent-free emulsification, the branched polyester having a first original weight average molecular weight before undergoing solvent-free emulsification and a second weight average molecular weight after undergoing solvent-free emulsification, wherein the branched polyester has a structure that limits degradation of the polyester during solvent-free emulsification to less than about 20 percent of the first original weight average molecular weight, wherein the branched polyester comprises a compound of the formula described.

    摘要翻译: 一种适用于无溶剂乳化的支化聚酯,在进行无溶剂乳化之前具有第一原始重均分子量的支链聚酯和进行无溶剂乳化后的第二重均分子量,其中支化聚酯具有结构 这限制了无溶剂乳化期间聚酯的降解至小于第一原始重均分子量的约20%,其中支化聚酯包括所述式的化合物。

    PRODUCTION OF POLYESTERS IN A CONTINUOUS PACKED-BED REACTOR USING IMMOBILIZED ENZYME CATALYSTS
    10.
    发明申请
    PRODUCTION OF POLYESTERS IN A CONTINUOUS PACKED-BED REACTOR USING IMMOBILIZED ENZYME CATALYSTS 有权
    使用固定化酶催化剂在连续包装反应器中生产聚酯

    公开(公告)号:US20100081076A1

    公开(公告)日:2010-04-01

    申请号:US12240421

    申请日:2008-09-29

    IPC分类号: G03G9/087 C12P7/62 C08G63/00

    摘要: In accordance with various embodiments, there is a method of making a polyester. The method can include providing a monomer solution, the monomer solution including one or more cyclic esters in a concentration ranging from about 1 to about 100% and one or more solvents in a concentration ranging from about 99% to about 0%. The method of making a polyester can also include providing a packed-bed reactor including one or more immobilized enzymes, wherein the packed-bed reactor has an inlet and an outlet. The method can further include circulating the monomer solution through the packed-bed reactor to generate a solution enriched with polyester, such that the one or more immobilized enzymes convert the one or more cyclic esters to polyester in the packed-bed reactor during circulation and collecting the solution enriched with polyester exiting through the outlet.

    摘要翻译: 根据各种实施方案,有一种制备聚酯的方法。 该方法可以包括提供单体溶液,所述单体溶液包含浓度范围为约1至约100%的一种或多种环酯和浓度范围为约99%至约0%的一种或多种溶剂。 制备聚酯的方法还可以包括提供包含一种或多种固定化酶的填充床反应器,其中填充床反应器具有入口和出口。 该方法还可以包括使单体溶液循环通过填充床反应器以产生富含聚酯的溶液,使得一个或多个固定化酶在循环和收集期间将填料床反应器中的一种或多种环酯转化为聚酯 富含聚酯的溶液通过出口排出。