Preparation of unsaturated polyesters using bis-hydroxyalkyl est

Details Preparation of unsaturated polyesters using bis-hydroxyalkyl est Preparation of unsaturated polyesters using bis-hydroxyalkyl est

1987-10-16

1989-03-14

Kight, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528296, 528297, 528302, 528303, 528304, 528306, 528392, 528396, 525418, 525450, 525451, C08G 6302

Patent

active

048125539

ABSTRACT:
The novel polyesters are prepared by direct esterification of bis-hydroxyalkyl esters of aromatic diacids with unsaturated diacids or their anhydrides. These polyesters differ from the prior art polyesters in that they have alternating structures of saturated and unsaturated esters.

REFERENCES:
patent: 3252941 (1966-05-01), Mayer et al.
patent: 3997511 (1976-12-01), Batzer et al.
patent: 4306056 (1981-12-01), Miyamoto et al.

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