Multi-layer articles including a fluoroplastic layer
Assignee3M Innovative Properties Company
InventorsAttila Molnar, Edward E. Parsonage, Denis D. Duchesne, Tatsuo Fukushi
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Abstract
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° 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° C.
Claims37
A multi-layer article comprising (A) a first polymer layer comprising a fluoroplastic having a uni-modal molecular weight distribution and a melting point of at least 200° C. that includes interpolymerized units derived from vinylidene fluoride and tetrafluoroethylene in which the amount of vinylidene fluoride units is at least 0.1% by weight but less than 20% by weight, wherein said first polymer layer is a fluoroplastic layer, and (B) a second polymer layer bonded to said first polymer layer comprising a non-fluorinated polymer.
A multi-layer article comprising (A) a first polymer layer comprising a fluoroplastic that includes interpolymerized units derived from vinylidene fluoride and tetrafluoroethylene in which the amount of vinylidene fluoride units is between 0.1 and 15% by weight, said fluoroplastic having a uni-modal molecular weight distribution, wherein said first polymer layer is a fluoroplastic layer, and (B) a second polymer layer bonded to said first polymer layer comprising a non-fluorinated polymer.
A multi-layer article comprising (A) a first fluoroplastic polymer layer having a uni-modal molecular weight distribution and a melting point of at least 200° C. that comprises a fluoroplastic having interpolymerized units derived from vinylidene fluoride and tetrafluoroethylene in which the amount of vinylidene fluoride units is at least 0.1% by weight but less than 20% by weight, and (B) a second polymer layer bonded to said first polymer layer comprising a non-fluorinated polymer.
A multi-layer article comprising (A) a first layer that consists essentially of a fluoroplastic polymer having a uni-modal molecular weight distribution and a melting point of at least 200° C. that includes interpolymerized units derived from vinylidene fluoride and tetrafluoroethylene in which the amount of vinylidene fluoride units is at least 0.1% by weight and less than 20% by weight, wherein said first polymer layer is a fluoroplastic layer, and (B) a second polymer layer bonded to said first polymer layer, said second polymer layer comprising a non-fluorinated polymer.
A multi-layer article comprising (A) a first polymer layer comprising a fluoroplastic having a uni-modal molecular weight distribution and a melting point of at least 200° C. that includes interpolymerized units derived from vinylidene fluoride and tetrafluoroethylene in which the amount of vinylidene fluoride units is at least 0.1% by weight but less than 20% by weight, wherein said first polymer layer is a fluoroplastic layer, and (B) a second polymer layer bonded to said first polymer layer comprising a non-fluorinated polymer, further comprising a bonding layer comprising a polyamine having a molecular weight of greater than 1000 between said first and second polymer layers.
Dependencies are inferred from the claim text.