Method for the prevention of hydrolysis of polyesterification ca

Details Method for the prevention of hydrolysis of polyesterification ca Method for the prevention of hydrolysis of polyesterification ca

1982-07-14

1984-02-21

Phynes, Lucille M.

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

Synthetic resins

From carboxylic acid or derivative thereof

528274, 528275, 528279, 528283, 528285, C08G 6304, C08G 6332

Patent

active

044331355

ABSTRACT:
The use of aluminum sulfate as a dessicant for drying the starting materials used in polymerization reactions employing readily hydrolyzable catalysts is disclosed. The aluminum sulfate is allowed to remain in the reaction mixture during polymerization, and, indeed, may advantageously be allowed to remain in the reaction product without any deleterious effect.

REFERENCES:
patent: 3544523 (1970-12-01), Maxion
patent: 3852247 (1974-12-01), Vizurraga

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