Copolyetherester

Details Copolyetherester Copolyetherester

1997-08-01

2000-04-04

Mosley, Terressa

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

Synthetic resins

From carboxylic acid or derivative thereof

528298, 528308, 5283086, 5283087, 428 369, 525437, C08G 6302

Patent

active

060463023

ABSTRACT:
The invention relates to a novel copolyether-ester containing hard segments derived from at least one low-molecular-weight glycol and at least two dicarboxylic acids, or esters thereof, chosen from the group comprising 2,6-naphthalenedicarboxylic acid, 4,4'-diphenyldicarboxylic acid and terephthalic acid, which contains, if desired, isophthalic acid, and containing soft segments derived from the group comprising poly(alkylene oxides).
The copolyetherester according to the invention has improved properties at high temperature while retaining the properties at low temperature.

REFERENCES:
patent: 4292151 (1981-09-01), Inata et al.
patent: 4937314 (1990-06-01), Greene
patent: 5116937 (1992-05-01), Greene
patent: 5128185 (1992-07-01), Greene
patent: 5162455 (1992-11-01), Greene

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