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Phenol-formaldehyde resole resins, method of manufacture, methods of use, and articles formed therefrom
Phenol-formaldehyde resole resins, method of manufacture, methods of use, and articles formed therefrom
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机译:酚醛甲阶酚醛树脂,制造方法,使用方法以及由其形成的制品
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摘要
A composition is disclosed, which comprises a hydroxyaromatic-aldehyde resole resin comprising an aldehyde and a hydroxyaromatic compound, modified with a urea-aldehyde condensate. The hydroxyaromatic-aldehyde resole resin is prepared without ammonia or a primary amine and the composition does not contain a triazone or a substituted triazone compound. The composition has improved premix stability, improved cure efficiency, comparable tensile strength, and lower volatiles than the hydroxyaromatic-aldehyde resole resin unmodified with a urea-aldehyde condensate. Also disclosed are articles prepared therefrom.
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