公开(公告)号：US6077960A

公开(公告)日：2000-06-20

申请号：US440245

申请日：1999-11-15

申请人： Hao-Jan Ling ,  Kan-Nan Chen ,  Jian-Zei Lai ,  Yun-Shan Lin

发明人： Hao-Jan Ling ,  Kan-Nan Chen ,  Jian-Zei Lai ,  Yun-Shan Lin

IPC分类号： C07D403/14 ,  C08G18/02 ,  C08G18/08 ,  C08G18/12 ,  C08G18/28 ,  C08G18/80

CPC分类号： C07D403/14 ,  C08G18/027 ,  C08G18/0823 ,  C08G18/12 ,  C08G18/2865

摘要： A novel uretedione derivative used as a curing agent for aqueous-based polyurethane and a process for producing the same are disclosed. The uretedione derivative contains uretedione and aziridine functional groups which are active toward the amino and the carboxy groups of hydrolyzed polyurethane in an aqueous phase.

摘要翻译： 公开了一种用作水基聚氨酯固化剂的新型脲二酮衍生物及其制备方法。 脲二酮衍生物含有在水相中对水解的聚氨酯的氨基和羧基具有活性的脲二酮和氮丙啶官能团。

公开(公告)号：US06291554B1

公开(公告)日：2001-09-18

申请号：US09430055

申请日：1999-10-29

申请人： Tsorng-Wen Chen ,  Jen-Taut Yeh ,  Kan-Nan Chen ,  Yun-Shan Lin

发明人： Tsorng-Wen Chen ,  Jen-Taut Yeh ,  Kan-Nan Chen ,  Yun-Shan Lin

IPC分类号： C08K320

CPC分类号： C08L63/00 ,  C08G59/42 ,  C08G59/4207 ,  C08G59/4284 ,  C08L79/02 ,  C08L2666/04

摘要： Disclosed is an anionic, self-emulsified aqueous epoxy resin dispersion prepared through the semi-esterification reaction between a dicarboxylic acid anhydride and the secondary hydroxy group of an epoxy resin, followed by neutralization of the carboxylic acid thus introduced into the epoxy resin with a tertiary amine and then adding only water, without the need of any emulsifier, to the resulting hydrophilic amine salt of the carboxylic acid. The stable aqueous epoxy resin contains both carboxyl and epoxy groups which are reactive functional groups. Also disclosed is a “single-pack” curable aqueous epoxy resin system “cross-linkable” at normal temperature prepared by adding a compound containing polyaziridine as a cross-linking agent into the aqueous epoxy resin dispersion. Upon drying, the liberated carboxyl group in the aqueous epoxy resin reacts with the polyaziridine to form an amino ester via a ring opening reaction. The amino group further reacts with the epoxy group of the epoxy resin to run another cross linking reaction to complete a “double cross-linking”. The novel double cross-linking process according to the present invention also can be used in a hybrid resin obtained by blending the aqueous epoxy resin dispersion and other carboxyl- or epoxy-containing aqueous resins, to cure the hybrid resin.

摘要翻译： 公开了通过二羧酸酐和环氧树脂的仲羟基之间的半酯化反应制备的阴离子，自乳化的水性环氧树脂分散体，然后将由此引入到环氧树脂中的羧酸中和 然后仅向所得羧酸的亲水胺盐中加入水，而不需要任何乳化剂。 稳定的水性环氧树脂含有作为反应性官能团的羧基和环氧基团。 还公开了通过将含有作为交联剂的聚氮丙啶的化合物添加到水性环氧树脂分散体中而制备的在常温下“可交联”的“单组分”可固化水性环氧树脂体系。 干燥后，水性环氧树脂中的游离羧基与聚氮丙啶反应，通过开环反应形成氨基酯。 氨基还与环氧树脂的环氧基进行反应，进行另一个交联反应，从而完成“双重交联”。 根据本发明的新型双交联方法也可以用于通过混合水性环氧树脂分散体和其它含羧基或环氧基的含水树脂而获得的杂化树脂，以固化杂化树脂。