초록 ▼

A multi-layer article comprises a fluoropolymer layer comprising interpolymerized units derived from vinylidene fluoride, and a melt-processable, substantially non-fluorinated polymer layer comprising a polyamide, polyimide, polyurethane, or a carboxyl, anhydride, or imide functionalized polyolefin.

A multi-layer article comprises a fluoropolymer layer comprising interpolymerized units derived from vinylidene fluoride, and a melt-processable, substantially non-fluorinated polymer layer comprising a polyamide, polyimide, polyurethane, or a carboxyl, anhydride, or imide functionalized polyolefin. The non-fluorinated polymer layer further contains an aliphatic di-, or polyamine which provides increased adhesion between the fluoropolymer layer and the non-fluorinated polymer layer.

대표청구항 ▼

[ We claim:] [1.] A multi-layer composition comprising a first layer comprising fluoropolymer, a second layer comprising a melt-processable, substantially non-fluorinated polymer, and an aliphatic di- or polyamine of less than 1,000 molecular weight, wherein said fluoropolymer comprises interpolymer

[ We claim:] [1.] A multi-layer composition comprising a first layer comprising fluoropolymer, a second layer comprising a melt-processable, substantially non-fluorinated polymer, and an aliphatic di- or polyamine of less than 1,000 molecular weight, wherein said fluoropolymer comprises interpolymerized units derived from vinylidene fluoride, said substantially non-fluorinated polymer is a polyamide, polyimide, polyurethane, or a carboxyl, anhydride, or imide functional polyolefin, substantially all of said amine is located in said second layer, and said amine is present in an amount sufficient to increase the adhesion between said layers compared to compositions without said di- or polyamine.