Improved spandex compositions

Details Improved spandex compositions Improved spandex compositions

C - Chemistry, Metallurgy

08

G

C08G 18/48 (2006.01) C08G 18/12 (2006.01) C08G 18/32 (2006.01) C08G 18/66 (2006.01) D01F 6/70 (2006.01)

Patent

CA 2454138

The invention provides an improved spandex that is prepared from a polyurethane that is the reaction product of organic diisocyanates, polymeric glycols, and polyols that have an aromatic functionality, such as alkoxylated phenols. The spandex has improved resistance to high temperature dyeing with minimal loss of physical properties, such as elastic recovery.

L'invention concerne un spandex amélioré préparé à partir d'un polyuréthanne qui est le produit de la réaction de diisocyanates organiques, de glycols polymères et de polyols qui ont une fonctionnalité aromatique, par exemple les phénols alcoxylés. Le spandex présente une meilleure résistance à la teinture à haute température avec un minimum de perte au niveau des propriétés physiques, par exemple la reprise élastique.

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