POLYFUNCTIONAL DIMETHYLNAPHTHALENE FORMALDEHYDE RESIN, AND PROCESS FOR PRODUCTION THEREOF
申请人:Kita Seiji
公开号:US20100324255A1
公开(公告)日:2010-12-23
The present invention provides a polyfunctional dimethylnaphthalene formaldehyde resin which is polyfunctional, rich in reactivity and useful as a variety of raw materials to be modified, specifically a dimethylnaphthalene formaldehyde resin obtained by allowing (1) one kind or two or more kinds of a dimethylnaphthalene having one methyl group on each of two benzene rings in a naphthalene ring thereof and selected from the group consisting of 1,5-dimethylnaphthalene, 1,6-dimethylnaphthalene, 2,6-dimethylnaphthalene, 1,7-dimethylnaphthalene, 1,8-dimethylnaphthalene and 2,7-dimethylnaphthalene; and (2) formaldehyde to react with each other in the presence of water and an acid catalyst, the polyfunctional dimethylnaphthalene formaldehyde resin having a mean value of the number of hydrogen atoms substituted by the reaction among the six hydrogen atoms directly bonded on the naphthalene ring in the dimethylnaphthalene of from 1.8 to 3.5.
本发明提供了一种多功能的二甲基萘甲醛树脂,它具有多种功能、反应性丰富,并可用作各种原材料的改性,具体地说,是通过使(1)一种或两种或更多种在萘环中的两个苯环上各有一个甲基基团的二甲基萘,所选自1,5-二甲基萘、1,6-二甲基萘、2,6-二甲基萘、1,7-二甲基萘、1,8-二甲基萘和2,7-二甲基萘的群组中;和(2)甲醛在水和酸催化剂存在下相互反应得到的二甲基萘甲醛树脂,该多功能的二甲基萘甲醛树脂的六个直接连接在二甲基萘的萘环上的氢原子被反应取代的平均值为1.8至3.5。