Unsaturated polyesters prepared from a dicarboxylic acid and dib

Details Unsaturated polyesters prepared from a dicarboxylic acid and dib Unsaturated polyesters prepared from a dicarboxylic acid and dib

1980-09-22

1983-05-17

Lieberman, Allan

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

Synthetic resins

From carboxylic acid or derivative thereof

528275, 528306, C08G 6330, C08G 6338

Patent

active

043841090

ABSTRACT:
Unsaturated esters can be prepared from dicarboxylic acids and dibromoneopentyl glycol with improved resin color in a shorter reaction time with minimal corrosion of metallic reaction vessels and with a net energy saving by the process using an aryl sulfonic acid as the esterification catalyst and following completion of the reaction neutralizing the acid catalyst.

REFERENCES:
patent: 1860164 (1932-05-01), Alsem
patent: 2646416 (1953-07-01), Parker
patent: 3640964 (1972-02-01), Stewart et al.
patent: 3891605 (1975-06-01), Larsen et al.
patent: 4003961 (1977-01-01), Stevens et al.
patent: 4067856 (1978-01-01), Muntz et al.
patent: 4175072 (1979-11-01), Parr et al.
patent: 4184035 (1980-06-01), Goins
patent: 4264745 (1981-04-01), Foucht

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