申请人:Bayer Aktiengesellschaft
公开号:US04879408A1
公开(公告)日:1989-11-07
Diisocyanates and isomer mixtures of diisocyanates corresponding to the formula ##STR1## in which R.sup.1, R.sup.2, m and n are as defined herein are produced by phosgenating diamines and isomer mixtures of diamines corresponding to the formula ##STR2## in which R.sup.1, R.sup.2, m and n are as defined herein. These diisocyanates which are liquid at room temperature and highly compatible with polyols are particularly useful in the production of polyurethanes.
Diisocyanates和其同分异构体混合物对应于公式##STR1## 中定义的R.sup.1,R.sup.2,m和n的产物,通过对应于公式##STR2## 中定义的R.sup.1,R.sup.2,m和n的二胺和同分异构体混合物进行光气化制备。这些在室温下为液体且与聚醚相容性极高的二异氰酸酯在生产聚氨酯方面特别有用。