Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1981-05-08
1982-10-12
Simmons, David A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156172, 156195, 15624413, 138141, 138 44, 138146, 138DIG3, 428 36, 428265, 428421, 428522, B65C 3100
Patent
active
043537634
ABSTRACT:
Disclosed is a process for producing a composite tubular member of two or more plastic materials. The product tubular member is leach and acid resistant and has inner and outer layers of thermoplastic material and an intermediate layer of a thermosetting resins. The process comprises the steps of: disposing a first layer of a thermoplastic material about a heated winding element for forming the inner layer, wherein the first layer is formed of polyvinylidene fluoride; fusing overlapping adjacent edges of the layer of polyvinylidene fluoride; disposing a second intermediate layer of a thermosetting resin about the inner layer of polyvinylidene fluoride; disposing a third outer layer of polypropylene about the second layer of the thermosetting resin; and fusing the outer layer of polypropylene to the intermediate and inner layers of the thermosetting resin and the polyvinylidene fluoride, respectively.
REFERENCES:
patent: 2748805 (1956-06-01), Winstead
patent: 3452506 (1969-07-01), Broerman
patent: 4104095 (1978-08-01), Shaw
Henze GmbH
Simmons David A.
Striker Michael J.
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