Title:
METHODS AND APPARATUS FOR PRODUCTION OF COMPOSITE-COATED RIGID FLAT-ROLLED SHEET METAL SUBSTRATE
Document Type and Number:
WIPO Patent Application WO2004101839
Kind Code:
A3
Abstract:
Methods and apparatus for producing composite-coated rigid flat-rolled sheet metal substrate in which thermoplastic polymeric materials are selected and combined for dual-layer molten-film extrusion presenting a first-contracting tie-layer and an externally-located finish-layer which are simultaneously extruded for a single substrate surface at-a-time; in which tie-layer selection includes an ethylene-glycol modified PET, requiring a substrate-surface temperature between 230°F and 300°F, and a maleic-anhydride modified polyethylene free of any substrate-surface heating requirement; the tie-layer provides sufficient green-strength-adhesion for a finish-layer selected from PBT, PET, and a combination of PBT and PET; each substrate-surface is separately activated for desired adhesion and separately polymeric coated; dual-surface finishing-processing is carried-out by remelting the coated polymeric materials for completing bonding of the dual polymeric layers on each inorganic-metallic protectively-coated surface of the substrate.
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Inventors:
SINSEL JOHN A (US)
LOEN MARK A (US)
SPECKHALS KENNETH H (US)
LOEN MARK A (US)
SPECKHALS KENNETH H (US)
Application Number:
PCT/US2004/014352
Publication Date:
July 28, 2005
Filing Date:
May 07, 2004
Export Citation:
Assignee:
ISG TECHNOLOGIES INC (US)
SINSEL JOHN A (US)
LOEN MARK A (US)
SPECKHALS KENNETH H (US)
SINSEL JOHN A (US)
LOEN MARK A (US)
SPECKHALS KENNETH H (US)
International Classes:
B05D1/00; B32B15/08; B32B37/15; C23C2/00; C23C; (IPC1-7): B32B31/00
Foreign References:
| US4941935A | 1990-07-17 | |||
| US5919517A | 1999-07-06 | |||
| US5674633A | 1997-10-07 | |||
| US20010009718A1 | 2001-07-26 | |||
| US20020168532A1 | 2002-11-14 | |||
| US20030031859A1 | 2003-02-13 |
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