Preparation process of phenol aralkyl resins

Details Preparation process of phenol aralkyl resins Preparation process of phenol aralkyl resins

1998-12-03

2000-10-03

Truong, Duc

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528205, 528503, 568626, 568628, 568715, 261128, 210150, C08G 6538

Patent

active

061275115

ABSTRACT:
A preparation process of phenol aralkyl resin from phenol compound and aralkyl compound by controlling the temperature of reaction mass in the range of 70 to 240.degree. C. and simultaneously controlling the temperature of vapor phase potion and vapor-liquid interface portion of manufacturing equipment so as to keep the wall surface of the vapor phase portion and vapor-liquid interface portion in a wet state. The invention can prevent scale adhesion to the interior of manufacturing equipment, remarkably reduce the number of washing and scale removing procedures on the manufacturing equipment, and enable efficient manufacture of phenol aralkyl resin. When the phenol aralkyl resin obtained is used for a molding material, molded articles having excellent heat resistance and high reliability can be provided.

REFERENCES:
patent: 5618984 (1997-04-01), Kowabata et al.

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