Multi-layer articles including a fluoroplastic layer

Details Multi-layer articles including a fluoroplastic layer Multi-layer articles including a fluoroplastic layer

B - Operations, Transporting

32

B

B32B 27/08 (2006.01) C08F 214/18 (2006.01) F16L 11/04 (2006.01) F16L 11/127 (2006.01)

Patent

CA 2417730

A multi-layer article featuring a fluoroplastic layer bonded to a non- fluorinated polymer layer in which the fluoroplastic has a melting point of at least 200.ordm.C and contains interpolymerized units of at least TFE and VDF, the amount of VDF being at least 0.1% by weight, but less than than 20% by weight. Also useful are fluoroplastics containing at least TFE and VDF in which the amount of VDF units is between 0.1 and 15% by weight. Such polymers may optionally have melting points greater than 200.ordm.C.

L'invention concerne un article multicouche comprenant une couche en plastique fluoré liée à une couche polymère non fluorée dans laquelle le plastique fluoré présente un point de fusion d'au moins 200.ordm.C et contient des unités interpolymérisées constituées aumoins de TFE et de VDF, le taux de VDF étant d'au moins 0,1 % en poids, mais inférieur à 20 % en poids. Des plastiques fluorés sont également utiles, lesquels plastiques fluorés contiennent au moins du TFE et du VDF, le taux d'unités de VDF étant situé entre 0,1 et 15 % en poids. Ces polymères peuvent éventuellement présenter des points de fusion supérieurs à 200.ordm.C.

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