Process for preparing aromatic polyesters from diphenols

Details Process for preparing aromatic polyesters from diphenols Process for preparing aromatic polyesters from diphenols

1974-08-05

1976-08-03

Lee, Lester L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 47XA, 260 49, 260860, C08G 6318, C08G 6326

Patent

active

039728528

ABSTRACT:
In a process of preparing aromatic polyesters from (A) aromatic dicarboxylic acids and (B) diphenols by the solid phase polymerization method, the speed of the solid phase polymerization reaction can be enhanced to a marked degree by copolymerizing (C) an aliphatic dihydroxy compound, and in this case the amounts in which the components (B) and (C) are used, based on (A), being 70 - 105 mol % of (B) and 1 - 50 mol % of (C), with the total amount of (B) and (C) corresponding to 100 - 130 mol % of (A).

REFERENCES:
patent: 2595343 (1952-05-01), Drewitt et al.
patent: 3395119 (1968-07-01), Blaschke et al.
patent: 3398120 (1968-08-01), Hindersinn et al.
patent: 3433770 (1969-03-01), Shima et al.
patent: 3444141 (1969-05-01), Shima
patent: 3525715 (1970-08-01), Hrach et al.
patent: 3801547 (1974-04-01), Hoeschele

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