| 发明名称 |
COLOR STABLE PREPOLYMER |
| 摘要 |
The present invention is directed to the stabilization of a prepolymer based on methylene diphenyl isocyanate rich in the 2,4'-isomer It was surprisingly found that the color stability, viscosity and aging characteristics of the prepolymer are improved markedly upon the incorporation therewith of a combination of a certain epoxide compound and a hindered phenol.
|
| 申请公布号 |
CA1338406(C) |
申请公布日期 |
1996.06.18 |
| 申请号 |
CA19890590359 |
申请日期 |
1989.02.07 |
| 申请人 |
BAYER CORPORATION |
发明人 |
POTTER, TERRY A.;PANTONE, RICHARD S.;CARTER, RUSSELL P., JR. |
| 分类号 |
C08G18/10;C08G18/76;C08K5/13;C08K5/1515;(IPC1-7):C08L75/04;C08K5/04;C08K5/15 |
主分类号 |
C08G18/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
