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公开(公告)号：US4960876A
公开(公告)日：1990-10-02
申请号：US288233
申请日：1988-12-22
申请人： Giuseppe Molteni , Carlo Nicora , Attilio Cesaro , Sabrina Pricl
发明人： Giuseppe Molteni , Carlo Nicora , Attilio Cesaro , Sabrina Pricl
摘要： Modified galactomannans are described having a total molar substitution exceeding 0.7 and containing an average of between 0.7 and 4 hydrophilic substituents and between 0.0001 and 0.02 hydrophobic substituents per anhydroglycosidic unit, the molar ratio of hydrophilic to hydrophobic substituents being between 35:1 and 40,000:1.A process for their preparation is also described.When dissolved in water, the compounds of the invention have the property of modifying the rheological properties of aqueous solutions by increasing their viscosity and their suspending properties, thus making them particularly suitable for industrial use in the paint, paper, and ceramic production sectors and as printing aids in the textile field, as aids in the preparation of fluids used in hydrocarbon research and production, and generally in any application in which such properties are required.
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公开(公告)号：US20050143558A1
公开(公告)日：2005-06-30
申请号：US10508320
申请日：2003-03-12
CPC分类号： C08B37/0096
摘要： The present invention relates to highly hydroxyalkylated, glyoxal crosslinked, purified hydroxyalkyl guar useful as additive in the building industry, and to a method for its preparation.
摘要翻译： 本发明涉及在建筑工业中可用作添加剂的高度羟烷基化的乙二醛交联的纯化羟烷基瓜尔胶及其制备方法。
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3.发明申请Enzymatic depolymerisation of carboxymethylcellulose in hydroalcoholic solutions 审中-公开羧甲基纤维素在水醇溶液中的酶解解公开(公告)号：US20060281154A1
公开(公告)日：2006-12-14
申请号：US10564741
申请日：2004-07-14
IPC分类号： C12P19/04 , A61K31/716
摘要： The present invention refers to the procedure for the preparation of aqueous concentrated solutions of low viscosity carboxymethylcellulose by enzymatic depolymerisation of medium viscosity carboxymethylcellulose in the form of dispersed powder in a hydro-alcoholic heterogeneous medium, and to such aqueous concentrated solutions which have Brookfield viscosity, at 20° C. and 20 rpm, comprised between 2000 and 5000 mPa*s. Preferred alcohol-water biphasic systems have from 40% to 50% of alcohol (e.g., ethanol or isopropanol). The aqueous solutions of carboxymethylcellulose produced are stable over time, and their viscosity varies no more than 10% in 3 months.
摘要翻译： 本发明涉及通过在分散粉末形式的中等粘度的羧甲基纤维素在含水异构介质中的酶促解聚制备低粘度羧甲基纤维素水溶液的方法，以及具有布鲁克菲尔德粘度的这种水性浓缩溶液， 在20℃和20rpm下，包括在2000和5000mPa * s之间。 优选的醇 - 水双相系统具有40％至50％的醇（例如乙醇或异丙醇）。 生产的羧甲基纤维素水溶液随时间稳定，3个月内粘度变化不超过10％。
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4.发明申请Building additives based on purified hydrophobically modified hydroxyalkyl guar 失效基于纯化的疏水改性羟烷基瓜尔胶的建筑添加剂公开(公告)号：US20050171344A1
公开(公告)日：2005-08-04
申请号：US10508274
申请日：2003-03-12
CPC分类号： C08B37/0096 , C04B24/38 , C04B2103/0079 , C04B2103/44 , C04B20/023
摘要： The present invention relates to highly hydroxyalkylated, glyoxal crosslinked, purified hydrophobically modified hydroxyalkyl guar useful as additive in the building industry, and to a method for its preparation.
摘要翻译： 本发明涉及在建筑工业中可用作添加剂的高度羟烷基化的乙二醛交联的纯化的疏水改性羟烷基瓜尔胶及其制备方法。
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公开(公告)号：US07396924B2
公开(公告)日：2008-07-08
申请号：US10508320
申请日：2003-03-12
CPC分类号： C08B37/0096
摘要： The present invention relates to highly hydroxyalkylated, glyoxal crosslinked, purified hydroxyalkyl guar useful as additive in the building industry, and to a method for its preparation.
摘要翻译： 本发明涉及在建筑工业中可用作添加剂的高度羟烷基化的乙二醛交联的纯化羟烷基瓜尔胶及其制备方法。
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6.发明授权Building additives based on purified hydrophobically modified hydroxyalkyl guar 失效基于纯化的疏水改性羟烷基瓜尔胶的建筑添加剂公开(公告)号：US07355039B2
公开(公告)日：2008-04-08
申请号：US10508274
申请日：2003-03-12
CPC分类号： C08B37/0096 , C04B24/38 , C04B2103/0079 , C04B2103/44 , C04B20/023
摘要： The present invention relates to highly hydroxyalkylated, glyoxal crosslinked, purified hydrophobically modified hydroxyalkyl guar useful as additive in the building industry, and to a method for its preparation.
摘要翻译： 本发明涉及在建筑工业中可用作添加剂的高度羟烷基化的乙二醛交联的纯化的疏水改性羟烷基瓜尔胶及其制备方法。
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