| 发明名称 |
PROCESS FOR PREPARING PHENOLIC BINDER |
| 摘要 |
A phenolic binder for glass fibers is prepared using an aqueous mixture including a phenol-formaldehyde resole resin, modified with urea in the presence of ammonia. The urea and ammonia are added after the basic mixture including the resole resin has been neutralized. The urea-modified resole resin shows greater stability than urea-modified resole prepared without ammonia.
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| 申请公布号 |
CA2068242(A1) |
申请公布日期 |
1992.11.10 |
| 申请号 |
CA19922068242 |
申请日期 |
1992.05.08 |
| 申请人 |
COVENTRY, KATHLEEN H.;SEGAL, DAVID A. |
发明人 |
COVENTRY, KATHLEEN H.;SEGAL, DAVID A. |
| 分类号 |
D06M15/41;C03C25/10;C03C25/34;C08G8/00;C08G8/28;C08G14/06;C08G14/08;C08J5/08;C08L61/10;C08L61/34;D06M13/02;D06M13/322;D06M13/402;D06M13/432;D06M13/51;D06M13/513;D06M101/00;(IPC1-7):C08G8/28;C03C25/02;C08L61/14 |
主分类号 |
D06M15/41 |
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