METHODS FOR PREPARING STABLE UREA FORMALDEHYDE POLYVINYL ALCOHOL COLLOIDS

• 收藏
• 分享

专利权人:

Hexion Research Belgium SA

发明人:

ZHANG, Yingchao,SNOVER, David A.

申请号：

EP20150824891

公开号：

EP3172181(A4)

申请日:

2015.07.23

申请国别(地区):

欧洲专利局

年份:

2018

代理人:

摘要：

The mechanical properties of urea formaldehyde resins may be improved by incorporating therein polyvinyl alcohol. The polyvinyl alcohol may be incorporated during pre-mixing, mid mixing, and/or post mixing of the resin components. Resins prepared using polyvinyl alcohol are particularly desirable in articles requiring improved mechanical strength and water resistance, as compared to similar resins prepared without the polyvinyl alcohol such as shingles.

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/