公开(公告)号：US06342580B1

公开(公告)日：2002-01-29

申请号：US09495928

申请日：2000-02-02

申请人： Henri Laurent ,  Thierry Dreyfus ,  Chantal Poulet ,  Serge Quillet

发明人： Henri Laurent ,  Thierry Dreyfus ,  Chantal Poulet ,  Serge Quillet

IPC分类号： C08F600

CPC分类号： C08F6/00 ,  C08G69/48 ,  C08G73/0286 ,  D21H17/55 ,  D21H21/20 ,  G03C1/79

摘要： A process for obtaining aminopolyamide-epichlorohydrin resins with a 1,3-dichloro-2-propanol content which is undetectable by ordinary means of vapor-phase chromatography. The process consists of passing the products resulting from the successive condensation of aminopolyamides and epichlorohydrin through two columns of activated carbon. In this way, aqueous resins are obtained which are free of toxic products, and which are particularly valuable as wet strength additives in the manufacture of papers for medical, cosmetic or food contact uses.

摘要翻译： 得到1,3-二氯-2-丙醇含量的氨基多酰胺 - 表氯醇树脂的方法，其通过气相色谱法是不可检测的。 该方法包括将由氨基聚酰胺和表氯醇连续缩合得到的产物通过两列活性炭。 以这种方式，获得了无毒产品的水性树脂，并且在制造用于医疗，化妆品或食品接触用途的纸张中作为湿强度添加剂是特别有价值的。