Acid agent and process for producing the same

Details Acid agent and process for producing the same Acid agent and process for producing the same

C - Chemistry, Metallurgy

08

G

260/502.6

C08G 16/02 (2006.01) C08L 61/06 (2006.01) C08L 61/34 (2006.01)

Patent

CA 1092150

ACID AGENT AND PROCESS FOR PRODUCING THE SAME Abstract of the Disclosure An acid agent comprises a liquid water-insoluble product of concurrent reaction of: (a) one mole of an oxy-(R)-methyl derivative of phenol in which 0.4-2.0 moles of HO-CH(R)-groups are present per one mole of phenol, wherein R=H-, CH3-, or (b) one mole of phenol and 0.3-2.0 moles of an aldehyde and (c) 0.03-100.0 moles of an aryl sulphonic acid, having an acid number from 10 to 300 Image with maximum water content 35% by weight. The process of reacting said components is conducted in a flow reactor during 0.1-10 minutes at 50-150°C. The acid agent according to the invention may be modified with other substances, such as amines, alcohols, acids to impart additional useful properties thereto. The acid agent has low viscosity, low corrosive activity, improves the strength of phenol-formadehyde resins cured therewith by 30% and lowers their water absorption capacity by 2-10 times.

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