Method of limiting rate of heat evolution during acid-...

Details Method of limiting rate of heat evolution during acid-... Method of limiting rate of heat evolution during acid-...

C - Chemistry, Metallurgy

08

G

402/31

C08G 8/20 (2006.01) C08G 8/04 (2006.01) C08G 8/24 (2006.01) C08G 59/08 (2006.01) C08L 61/12 (2006.01)

Patent

CA 1218495

ABSTRACT OF THE DISCLOSURE Large-scale preparation of branched novolacs by the acid catalyzed, exothermic condensation of methylol-reactive phenols with polymethylol diphenols is made practical by first carrying out the reaction on a scale which permits temperature control simply by cooling and then separately adding more of the premixed reactants and the catalyst at rates such that the temperature of the reaction mixture can readily be controlled.

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