Copolyetherester elastomer with cycloaliphatic hard segments

Details Copolyetherester elastomer with cycloaliphatic hard segments Copolyetherester elastomer with cycloaliphatic hard segments

1990-06-07

1991-01-15

Foelak, Morton

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

Synthetic resins

From carboxylic acid or derivative thereof

528300, 528301, 528307, 528308, 525397, 525437, C08G 6302

Patent

active

049855360

ABSTRACT:
An improved thermoplastic, segmented, linear copolyetherester elastomer having hard segments derived from diols and diacids which provide divalent cyclo-aliphatic radicals having a structure depicted by a formula which is ##STR1## Preferably the diol and diacid radicals are each at least 40% trans isomer and either one or the other radical is at least 70% trans isomer. The elastomers are suited for use as rubber-band substitutes, elastic strips, elastic coatings and the like.

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