发明名称 |
PROCESS FOR THE PREPARATION OF POLYURETHANE (UREA) MASSES WHICH CONTAIN FOAM |
摘要 |
PROCESS FOR THE PREPARATION OF POLYURETHANE (UREA) MASSES WHICH CONTAIN FOAM The present invention is directed to a process for the preparation of foam-containing polyurethane (urea) masses comprising reacting an isocyanate prepolymer containing cation groups with water in the presence of fillers. The isocyanate prepolymer is prepared by first i) reacting a polyisocyanate with a first polyol which contains partly or completely quaternized tertiary nitrogen, said polyol being prepared by reacting a tertiary amine containing compound with from 3 to 8 moles of propylene oxide per mol of nitrogen to thereby form a semi-isocyanate prepolymer and then ii) reacting said semi-isocyanate prepolymer with a second polyol different from said first polyol, to form said isocyanate prepolymer.
|
申请公布号 |
CA2031094(A1) |
申请公布日期 |
1991.06.20 |
申请号 |
CA19902031094 |
申请日期 |
1990.11.29 |
申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
MAYER, EDUARD;DIETRICH, MANFRED;MECKEL, WALTER |
分类号 |
C08J9/02;C08G18/08;C08G18/50;C08G18/80;(IPC1-7):C08G18/10 |
主分类号 |
C08J9/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|