Unsaturated homo- and/or copolymerizable polyesters

Details Unsaturated homo- and/or copolymerizable polyesters Unsaturated homo- and/or copolymerizable polyesters

1986-01-30

1987-09-01

Ivy, C. Warren

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

Synthetic resins

From carboxylic acid or derivative thereof

528296, 528303, 528306, 528307, 525440, 525 33, 525 34, C08G 6352, C08G 6354, C08G 6368, C08G 6376

Patent

active

046910026

ABSTRACT:
The invention relates to unsaturated homo- and/or copolymerizable polyesters which have been prepared from an alcohol component comprising a multivalent alcohol, a carboxylic acid component comprising a multivalent carboxylic acid and optionally, hydroxycarboxylic acids or their derivatives capable of forming esters, and an acid component selected from the group consisting of maleic acid, fumaric acid, itaconic acid, mesaconic acid, aconitic acid, their derivatives capable of forming esters and mixtures thereof. As part of the alcohol coponent, hydroxylated polybutadiene with an average molecular weight of 2400 to 3000 and a hydroxy-functionality of 2.2 to 2.4 is condensed into the polyester. The polyesters exhibit useful flow anomalies which are due to their molecular structure.

REFERENCES:
patent: 3515772 (1970-06-01), Lubowitz
patent: 4355123 (1982-10-01), Dudgeon
patent: 4370446 (1983-01-01), Toyoda
patent: 4477653 (1984-10-01), Hegemann

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