Process for producing particulate novolac resins and aqueous...

C - Chemistry – Metallurgy – 08 – G

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400/1310, 402/40

C08G 8/04 (2006.01) C08J 3/16 (2006.01) C08L 61/06 (2006.01)

Patent

CA 1216697

33 PROCESS FOR PRODUCING PARTICULATE NOVOLAC RESINS AND AQUEOUS DISPERSIONS ABSTRACT OF THE DISCLOSURE Particulate novolac resins and aqueous dispersions are produced by condensing phenol with aldehyde using acid catalysis. Following neutralization, particulate novolac resin is formed by adding protective colloid to the aqueous mixture. Resin particle isolation can be aided by dephenolation.

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