公开(公告)号：EP1003933A1

公开(公告)日：2000-05-31

申请号：EP98939942.3

申请日：1998-08-13

申请人： PENFORD CORPORATION

发明人： LUEBKE, Gary ,  BENTON, Kenneth, Curtis ,  LETUCHY, Yakov

IPC分类号： D21H17/28 ,  D21H19/20 ,  D21H19/54 ,  D21H19/56 ,  D21H21/14 ,  C08G83/00 ,  C08L3/00 ,  C09D103/00 ,  C09J103/00

CPC分类号： C08B31/00 ,  C08F251/00

摘要： The invention provides methods for the preparation of a starch copolymer product which is the reaction product of starch and one or more synthetic monomers capable of undergoing free radical polymerization wherein the reaction product is in the form of an emulsion or dispersion having weight-average particle sizes less than 180 nm as measured by Capillary Hydrodynamic Fractionation. The method includes the steps of: (a) dissolving or colloidally dispersing starch in an aqueous solvent to form a starch solution or dispersion; (b) heating the starch solution or dispersion to a specified temperature range; (c) adding to the starch solution or dispersion a first portion of the synthetic monomer and a free radical initiator for initiation of polymerization of the starch member and the synthetic monomer; and (d) after free radical polymerization of the synthetic monomers has been initiated in the presence of the starch, adding additional portions of synthetic monomers capable of undergoing free radical polymerization to the starch solution or dispersion. The invention also provides improved methods for the preparation of starch copolymer products utilizing wet adhesion monomers and improved industrial and architectural coatings containing the resulting starch copolymer products.

摘要翻译： 本发明提供了制备淀粉共聚物产品的方法，所述淀粉共聚产品是淀粉和一种或多种能够进行自由基聚合的合成单体的反应产物，其中反应产物为具有重均粒径的乳液或分散体形式 通过毛细管流体动力学分馏测量小于180nm。 该方法包括以下步骤：（a）将淀粉溶解或胶体分散在含水溶剂中以形成淀粉溶液或分散体; （b）将淀粉溶液或分散体加热到特定温度范围; （c）向淀粉溶液或分散体中加入合成单体的第一部分和自由基引发剂以引发淀粉成分和合成单体的聚合反应; 和（d）在淀粉存在下引发合成单体的自由基聚合后，向淀粉溶液或分散体中加入能够进行自由基聚合的合成单体的另外部分。 本发明还提供了使用湿粘合单体制备淀粉共聚物产品的改进方法和改进的含有所得淀粉共聚物产品的工业和建筑涂料。