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    Polysaccharides grafted with aliphatic polyesters derived from cyclic esters
    46.
    发明授权
    Polysaccharides grafted with aliphatic polyesters derived from cyclic esters 失效
    用衍生自环酯的脂肪族聚酯接枝的多糖

    公开(公告)号：US5616671A

    公开(公告)日：1997-04-01

    申请号：US632291

    申请日：1996-04-15

    申请人： Ramani Narayan ,  Philippe Dubois ,  Mohan Krishnan

    发明人： Ramani Narayan ,  Philippe Dubois ,  Mohan Krishnan

    IPC分类号： C08B31/04 ,  C08G63/664 ,  C08L3/06 ,  C08L67/04 ,  C08L101/00 ,  C08G16/00

    CPC分类号： C08L67/04 ,  C08B31/04 ,  C08G63/664 ,  C08L101/00 ,  C08L3/06

    摘要： Novel synthetic pathways to derive aliphatic polyester-grafted polysaccharides from cyclic ester monomers, preferably, poly(.epsilon.-caprolactone) and starch. Different reaction schemes lead to compositions with various levels of grafting. The grafting reactions were conducted using bulk monomer and an organometallic polymerization agent (catalyst or initiator) such as metal alkoxides initiators which were generated in-situ by the reaction of metal alkyls with hydroxyl groups of the polysaccharide. The grafting reactions were characterized by very fast reaction times of the order of a few minutes to effect complete conversion of monomer. Biodegradable compositions, particularly using these poly(.epsilon.-caprolactone)-grafted starch are described for use in film applications.

    摘要翻译： 从环酯单体，优选聚（ε-己内酯）和淀粉衍生脂族聚酯接枝多糖的新型合成途径。 不同的反应方案导致具有各种水平的接枝的组合物。 接枝反应使用本体单体和有机金属聚合剂（催化剂或引发剂）如金属醇盐引发剂进行，其通过金属烷基与多糖的羟基的反应原位产生。 接枝反应的特征是非常快的几分钟的反应时间以实现单体的完全转化。 特别是使用这些聚（ε-己内酯）移植淀粉的生物可降解组合物被描述用于膜应用中。

    Interpenetrating polymer networks derived from silylated triglyceride oils and polysiloxanes
    47.
    发明授权
    Interpenetrating polymer networks derived from silylated triglyceride oils and polysiloxanes 有权
    衍生自甲硅烷基化甘油三酸酯油和聚硅氧烷的互穿聚合物网络

    公开(公告)号：US09000103B2

    公开(公告)日：2015-04-07

    申请号：US13965495

    申请日：2013-08-13

    申请人： Ramani Narayan ,  Daniel Gravier ,  Sudhanwa Dewasthale ,  Elodie Halbot

    发明人： Ramani Narayan ,  Daniel Gravier ,  Sudhanwa Dewasthale ,  Elodie Halbot

    IPC分类号： C08L83/04 ,  C08G77/38 ,  C08K3/36 ,  C08J3/24 ,  C08K3/40 ,  C08K7/14

    CPC分类号： C08G77/38 ,  C08G77/50 ,  C08J3/246 ,  C08J2383/04 ,  C08J2391/00 ,  C08K3/36 ,  C08K3/40 ,  C08K7/14 ,  C08L83/04

    摘要： A composition of matter comprising an interpenetrating polymer network of a combination of a silanol-containing polysiloxane phase and a silylated triglyceride oil phase. The two phases are mixed and covalently bound to each other via siloxane crosslinks. A method for producing interpenetrating polymer networks. The method comprises providing triglycerides from oils or fats and reacting the triglycerides with a reactive silane to form a silylated triglyceride oil. The silylated triglyceride oil and a silanol terminated polysiloxane are emulsified with water in a predetermined ratio. Thereafter, crosslinking agents are added and the water is removed from the emulsions providing siloxane crosslinks between the two intimately mixed immiscible phases.

    摘要翻译： 包含含硅烷醇聚硅氧烷相和甲硅烷基化甘油三酸酯油相的组合的互穿聚合物网络的物质组合物。 两相通过硅氧烷交联而相互混合并共价结合。 一种制备互穿聚合物网络的方法。 该方法包括从油或脂肪中提供甘油三酯，并使甘油三酯与反应性硅烷反应以形成甲硅烷基化甘油三酸酯油。 甲硅烷基化甘油三酸酯油和硅烷醇封端的聚硅氧烷以预定比例的水乳化。 此后，加入交联剂，并从乳液中除去水，从而在两个密实混合的不混溶相之间提供硅氧烷交联。