Fluoroionomer liquid composition

Details Fluoroionomer liquid composition Fluoroionomer liquid composition

C - Chemistry, Metallurgy

08

J

C08J 5/22 (2006.01) C08L 27/12 (2006.01) C08L 27/22 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2705883

The invention pertains to a liquid composition comprising: - at least one fluoroionomer (I) [fluoroionomer (I-1)], said fluoroionomer (I-1) having a heat of fusion comprised between 4 and 20 J/g; - at least one fluoroionomer (I) [fluoroionomer (I-2)], said fluoroionomer (I-2) being substantially amorphous, that is to say having a heat of fusion of less than 4 J/g, and wherein the water extractable fraction of fluorionomer (I-2) is less than 40 % wt, said liquid composition comprising fluoroionomer (I-1) and fluoroionomer (I-2) in a weight ratio (I-1)/(I-2) of at least 2:1.

L'invention porte sur une composition liquide comprenant : - au moins un ionomère fluoré (I) [ionomère fluoré (I-1)], ledit ionomère fluoré (I-1) ayant une chaleur de fusion comprise entre 4 et 20 J/g; - au moins un ionomère fluoré (I) [ionomère fluoré (I-2)], ledit ionomère fluoré (I-2) étant sensiblement amorphe, autrement dit ayant une chaleur de fusion de moins de 4 J/g, et la fraction extractible par l'eau de l'ionomère fluoré (I-2) étant inférieure à 40 % en poids, ladite composition liquide comprenant l'ionomère fluoré (I-1) et l'ionomère fluoré (I-2) dans un rapport pondéral (I-1)/(I-2) d'au moins 2:1.

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