Extruded multiple plastic layer coating bonded to the outer surface of a metal tube having an optional non-reactive inne
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B21D-035/00
B23P-019/04
B05D-003/12
출원번호
US-0897369
(1997-07-21)
발명자
/ 주소
Iorio Ralph A.
Davie Robert M.
McDaniel James D.
Mitchell Frank L.
Nie Tao
출원인 / 주소
ITT Industries, Inc.
대리인 / 주소
Twomey
인용정보
피인용 횟수 :
30인용 특허 :
50
초록▼
A multi-layer tube having a metal tube having an outer surface and a zinc layer bonded to the metal tube outer surface. The zinc layer being selected from the group consisting of zinc plating, zinc nickel alloys, zinc cobalt alloys, zinc aluminum alloys, and mixtures thereof. A surface treatment lay
A multi-layer tube having a metal tube having an outer surface and a zinc layer bonded to the metal tube outer surface. The zinc layer being selected from the group consisting of zinc plating, zinc nickel alloys, zinc cobalt alloys, zinc aluminum alloys, and mixtures thereof. A surface treatment layer is bonded to the zinc layer, wherein the surface treatment layer is selected from the group consisting of a zinc/aluminum/rare earth alloy, phosphate, chromate and mixtures thereof. A first polymeric layer is bonded to the surface treatment layer, wherein the first polymeric layer is selected from the group consisting of a thermoplastic elastomer, an ionomer, a nylon, a fluoropolymer, and mixtures thereof. A second polymeric layer is bonded to the first polymeric layer, wherein the second polymeric layer is selected from the group consisting of a nylon, a thermoplastic elastomer, a fluoropolymer, and mixtures thereof. The tube also has a continuous interior layer made of non-reactive material which is preferably made of a polymeric material which is substantially non-reactive in the presence of short chain alcohols. The process for manufacturing the multi-layer tubing of the present invention also includes the steps of positioning a length of non-reactive tubing into the interior of unsealed metal tube, sealing the metal tube with the non-reactive tubing contained within and extruding multiple layers of a melt-processible thermoplastic onto the external surface metal tube the external surface can be pretreated with at least a zinc based coating and a sealant coating on top of the zinc based coating.
대표청구항▼
[ What is claimed is:] [1.] A process for manufacturing a metal tube having an interior surface resistant to interaction with materials to be conveyed therethrough, the method comprising:positioning a length of preformed non-reactive tube composed of essentially solidified material having an externa
[ What is claimed is:] [1.] A process for manufacturing a metal tube having an interior surface resistant to interaction with materials to be conveyed therethrough, the method comprising:positioning a length of preformed non-reactive tube composed of essentially solidified material having an external surface and a predetermined outer diameter within an inner diameter of a metal tube of essentially corresponding length, the metal tube having an unsealed side seam, wherein the inner diameter of the metal tube is greater than said outer diameter of the non-reactive tube;sealing the side seam and reducing the metal tube to an outer diameter essentially equal to the predetermined outer diameter of said preformed non-reactive tube after said length of non-reactive tubing has been positioned within said inner diameter of the metal tube; andextruding multiple layers of a melt-processible thermoplastic including at least a first polymeric layer and a second polymeric layer onto the external surface of the reduced metal tube, wherein the first polymeric layer is selected from the group consisting of a thermoplastic elastomer, an ionomer, a nylon, a fluoropolymer, and mixtures thereof, and the second polymeric layer is selected from the group consisting of a nylon, thermoplastic elastomer, a fluoropolymer, and mixtures thereof.
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이 특허에 인용된 특허 (50)
Barnoach Itzhak (London GB2), Apparatus for forming plastics coated tube.
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Noone David L. (Marsberg MI DEX) Mitchell Frank L. (Rochester MI) Wenig Peter (Marsberg DEX), Multi-layer tubing having electrostatic dissipation for handling hydrocarbon fluids.
Mgge Joachim (Haltern DEX) Rber Stefan (Marl DEX), Multilayer plastic pipe with polyamide inner and outer layers and a linear crystalline polyester intermediate layer.
Bergstrm Christer (Espoo FIX) Von Knorring Johan (Espoo FIX) Karttunen Mikko (Porvoo FIX), Plastic coated steel tube and method for preparing the same.
Decroly Pierre (Rhode-Saint-Gense BEX) Dehennau Claude (Waterloo BEX), Polymeric multilayer structures incorporating a layer of vinyl fluoride or vinylidene fluoride polymer which is bonded t.
Ranalli Franco (4 ; Via Palermo Milan ITX) Ortolani Leone (4 ; Via Palermo Padva ITX) Tisi Quinto (Ferrara ITX), Process for preparing gas-, vapor- and odor-proof coupled and coextruded multilayer articles of thermoplastic material a.
Derroire Georges (Riom FRX) Ragout Bernard (Aubiere FRX), Process for the manufacture of a flexible polymeric structure by extrusion and the flexible structure manufactured there.
McKeen, Laurence Waino; Farnsworth, Kimberly Dawn; Obal, W. Douglas; Mohan, Pidatala K., Process for forming a non-stick surface on the interior surface of a pipe.
McKeen, Laurence Waino; Farnsworth, Kimberly Dawn; Obal, W. Douglas; Mohan, Pidatala K., Process for forming a nonstick surface on the interior surface of a pipe.
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