发明名称 |
Concentrated aqueous solution of phenol and formaldehyde stable at low temperature process for preparing same |
摘要 |
Aqueous solutions of phenol and formaldehyde are stabilized with at least one carbohydrate such as saccharose, glucose, fructose, maltose, starch hydrolysates or molasses. The solutions are condensable and usable for preparing A-stage phenolic resin (resols).
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申请公布号 |
US4370444(A) |
申请公布日期 |
1983.01.25 |
申请号 |
US19810272622 |
申请日期 |
1981.06.11 |
申请人 |
SOCIETA ITALIANA RESINE S.I.R. S.P.A. |
发明人 |
PEZZOLI, SILVESTRO;ROSSI, GIANCARLO |
分类号 |
C07C37/88;C07C45/00;C07C45/86;C07C47/058;C07C67/00;C08G8/00;C08G8/10;(IPC1-7):C08L5/00 |
主分类号 |
C07C37/88 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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