Liquid crystal copolyethers from 7-oxa-bicyclo-(2,2,1)-heptane

Details Liquid crystal copolyethers from 7-oxa-bicyclo-(2,2,1)-heptane Liquid crystal copolyethers from 7-oxa-bicyclo-(2,2,1)-heptane

1987-09-11

1989-10-17

Kight, John

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

Synthetic resins

From heterocyclic reactant containing as ring atoms oxygen,...

528409, 528412, 528417, C08G 6508, C08G 6524

Patent

active

048748382

ABSTRACT:
The present invention relates to copolyethers comprising copolymers of 7,oxa-bicyclo(2,2,1)heptane, and its alkyl-derivatives, with one or more cycloaliphatic ethers, comprising from 2 to 4 carbon atoms in their ring. These copolyethers show an anisotropic behavior in the molten state, and therefore have liquid-crystal properties.

REFERENCES:
patent: 3417033 (1968-12-01), Weissermel et al.

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