Novolak compounds useful as adhesion promoters for epoxy resins

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

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525480, 525484, 525486, 525523, 525533, 528141, 528144, 528153, 528154, 528155, C08G 812, C08L 6300, C08L 6302

Patent

active

058591532

ABSTRACT:
A composition useful as a powder coating comprises an epoxy resin and a novolak compound or resin having a structure obtained from the reaction of a substituted phenol such as cresol and an aldehyde to form a substituted bis(hydroxymethyl) phenol intermediate which is then reacted with a polyhydroxyphenol containing adjacent hydroxyl groups such as catechol to yield a polyhydroxyphenol-endcapped novolak compound or resin.

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