Polyethylene terephthalate-containing laminate
AssigneePepsiCo, Inc.
InventorSaid K. Farha
Life of this patent
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Abstract
A first laminate which includes a first layer of a phenoxy-type thermoplastic, a second layer of an amorphous thermoplastic copolyester and a third layer of polyethylene terephthalate. A second laminate includes a first layer of a composition of a phenoxy-type thermoplastic and an amorphous thermoplastic copolyester and a second layer of polyethylene terephthalate. Preferably, these laminates are annular with the first layer being the outer ply. Plastic bottle preforms and plastic bottles are commercially important applications of the preferred embodiment wherein an annular laminate is employed.
Claims27
A laminate comprising a first layer of a phenoxy-type thermoplastic selected from the group consisting of a poly(hydroxy ether), a poly(hydroxy ester ether) and a poly(hydroxy amino ether), a second layer of an amorphous thermoplastic copolyester and a third layer of polyethylene terephthalate.
A laminate comprising a first layer of a composition which includes a phenoxy-type thermoplastic selected from the group consisting of a poly(hydroxy ether), a poly(hydroxy ester ether) and a poly(hydroxy amino ether) and an amorphous thermoplastic copolyester and a second layer of polyethylene terephthalate.
An annular laminate comprising an outer layer of a phenoxy-type thermoplastic selected from the group consisting of a poly(hydroxy ether), a poly(hydroxy ester ether) and a poly(hydroxy amino ether), an intermediate layer of an amorphous thermoplastic copolyester and an inner layer of polyethylene terephthalate.
An annular laminate comprising an outer layer of a composition of a phenoxy-type thermoplastic and an amorphous thermoplastic copolyester and an inner layer of polyethylene terephthalate.
Dependencies are inferred from the claim text.