Heat-resistant injection-moldable copolyester resins and resin b

Details Heat-resistant injection-moldable copolyester resins and resin b Heat-resistant injection-moldable copolyester resins and resin b

1992-05-08

1993-02-23

Kight, III, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528298, 528301, 528302, 528307, 528308, C08G 6313

Patent

active

051891409

ABSTRACT:
A heat-resistant moldable copolyester resin is the copolymerization reaction product of a diol monomer component comprised mainly of 1,4-cyclohexanedimethanol, and an acid monomer component which includes first and second carboxylic acid comonomers. The first acid comonomer is a napthalenedicarboxylic acid or an ester-forming derivative thereof, while the second acid comonomer is 4,4'-diphenyldicarboxylic acid or an ester-forming derivative thereof. The first and second comonomers are present in amounts which satisfy the molar fraction ratio:

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