Elastomeric polyurethane film containing dispersed discrete aggr

Details Elastomeric polyurethane film containing dispersed discrete aggr Elastomeric polyurethane film containing dispersed discrete aggr

1978-06-14

1980-01-08

Woo, Jay H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

252408, 260 18TN, 264236, 2642102, 2642106, 264211, 428 1, C09K 334

Patent

active

041827007

ABSTRACT:
Polyurethane elastomer films containing dispersed discrete aggregates of liquid crystals can be produced with improved color response. The liquid crystal aggregates are dispersed in uncured polyurethane elastomer precursors which are cured as a film. After the curing process has commenced but before the curing process has been completed, the partially cured film is subjected to shear stresses to change the shape of the partially cured material which thereafter is allowed to complete the cure in the altered shape.

REFERENCES:
patent: 3872050 (1975-03-01), Benton et al.

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