High-molecular unsaturated polyester resin

Details High-molecular unsaturated polyester resin High-molecular unsaturated polyester resin

1992-03-13

1993-10-19

Acquah, Samuel A.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528272, 528279, 528302, 528303, 528306, 528308, 5283086, 525437, C08F 2000

Patent

active

052546438

ABSTRACT:
An unsaturated alkyd having a number-average molecular weight of at least 5000 obtained by esterification and then deglycolization reaction of (a) at least 10 mol % of an .alpha., .beta.-unsaturated polybasic acid or an anhydride thereof relative to 100 mol % of the total polybasic acid including any saturated or non-.alpha., .beta.-unsaturated polybasic acid (or anhydride thereof) and (b) at least 50 mol % of a polyhydroxy alcohol having a boiling point of 300.degree. C. or less at 760 mmHg relative to 100 mol % of the total polyhydroxy alcohol summed up with another polyhydroxy alcohol not defined above. The polyester resin can be widely used in a various applications by employing the excellent physical properties thereof.

REFERENCES:
patent: 3539441 (1970-11-01), Rabenold
patent: 5091465 (1992-02-01), Dana et al.

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