发明名称 |
Phenol-formaldehyde resin solution containing water soluble alkaline earth metal salt |
摘要 |
A process for preparing a water soluble phenol-formaldehyde resole resin having improved storage stability employs a calcium compound to catalyze the condensation reaction which occurs under basic conditions. Sulfamic acid is used to neutralize the resole solution, yielding a soluble calcium salt which will not settle out of the solution or clog transfer lines or spray nozzles as may a calcium salt precipitated during the neutralization. Glass fiber insulation produced using a binder prepared with the aqueous resole solution shows enhanced thickness recovery and lower odor potential.
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申请公布号 |
US4904516(A) |
申请公布日期 |
1990.02.27 |
申请号 |
US19880142946 |
申请日期 |
1988.01.12 |
申请人 |
CERTAINTEED CORP |
发明人 |
CREAMER, ALBERT W. |
分类号 |
C03C25/10;C04B26/12;C04B41/48;C08G8/00;C08G8/06;C08G8/10;C08G8/28;C08G14/06;C08K5/43;C08L61/04;C08L61/06;C09J161/06 |
主分类号 |
C03C25/10 |
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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