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    Aqueous emulsions of polyvinyl esters containing hydroxypropylguar
    5.
    发明申请
    Aqueous emulsions of polyvinyl esters containing hydroxypropylguar 审中-公开
    含有羟丙基瓜尔胶的聚乙烯酯水乳液

    公开(公告)号：US20060258799A1

    公开(公告)日：2006-11-16

    申请号：US10543068

    申请日：2004-01-21

    申请人： Cristina Rinaldi ,  Marco Bonelli ,  Mauro Pelosi ,  Ugo Pfeiffer ,  Giuseppe Li Bassi

    发明人： Cristina Rinaldi ,  Marco Bonelli ,  Mauro Pelosi ,  Ugo Pfeiffer ,  Giuseppe Li Bassi

    IPC分类号： C08L31/02

    CPC分类号： C08F18/04

    摘要： The present invention refers to a protective colloid for the aqueous emulsion polymerisation of vinyl esters consisting of hydroxypropylguar having a degree of molar substitution from 1 to 4, and a 2% viscosity ranging from 1,000 to 25,000 mPa*s; the aqueous emulsions of polyvinyl esters containing such protective colloid are characterised by the fact the they exhibit improved mechanical stability, high stability to freeze and heath, and were found to be particularly useful for the preparation of paints having marked resistance to water.

    摘要翻译： 本发明涉及由摩尔取代度为1至4，2％粘度范围为1,000至25,000mPa * s的由羟丙基瓜尔基组成的乙烯基酯的水乳液聚合的保护胶体; 含有这种保护胶体的聚乙烯酯的水性乳液的特征在于它们表现出改善的机械稳定性，对冻结和保湿的高稳定性，并且被发现特别可用于制备具有显着抗水性的油漆。

    Glyoxal free purified cationic polygalactomannan
    6.
    发明授权
    Glyoxal free purified cationic polygalactomannan 有权
    无乙二醛纯化阳离子聚半乳甘露聚糖

    公开(公告)号：US08580952B2

    公开(公告)日：2013-11-12

    申请号：US12986785

    申请日：2011-01-07

    申请人： Ugo Pfeiffer ,  Mauro Tenconi ,  Eva Baldaro ,  Valentina Langella ,  Giovanni Floridi ,  Giuseppe Li Bassi

    发明人： Ugo Pfeiffer ,  Mauro Tenconi ,  Eva Baldaro ,  Valentina Langella ,  Giovanni Floridi ,  Giuseppe Li Bassi

    IPC分类号： C08B37/00 ,  C07H1/00 ,  C07H3/00

    CPC分类号： C08B37/0087 ,  C08B37/0096

    摘要： A glyoxal and boron free purified cationic polygalactomannan may be prepared by reacting a polygalactomannan flour, a nonionically derivatized polygalactomannan flour, or a mixture thereof, with a cationising reagent, adjusting the pH to be from about 4 to about 6; cross-linking the cationic with glyoxal, and filtering and water washing the cationic polygalactomannan to produce a glyoxalated purified cationic polygalactomannan containing not more than 70% by weight of water. In some cases it may be desirable to introduce a buffering agent to the glyoxalated purified cationic polygalactomannan to regulate the pH to from 8.0 to about 9.5, when measured at 1% (dry matter) in water. In other cases, it may be desirable to remove water to produce glyoxal free purified cationic polygalactomannan in powder form. Such compounds are particularly useful in personal care products.

    摘要翻译： 乙二醛和无硼纯化的阳离子聚半乳甘露聚糖可以通过使聚半乳甘露聚糖粉末，非离子衍生化的聚半乳甘露聚糖粉末或其混合物与阳离子化试剂反应来制备，将pH调节至约4至约6; 将阳离子与乙二醛交联，并过滤并水洗阳离子聚半乳甘露聚糖以产生含有不超过70重量％水的乙二醛纯化阳离子聚半乳甘露聚糖。 在一些情况下，当在水中以1％（干物质）测量时，可能需要向乙醛酸化的纯化阳离子聚半乳甘露聚糖引入缓冲剂以将pH调节至8.0至约9.5。 在其他情况下，可能需要除去水以产生无乙醛酸的纯化的粉末形式的阳离子聚半乳甘露聚糖。 这些化合物特别适用于个人护理产品。