Method for coating a metal strip

Coating processes – Application to opposite sides of sheet – web – or strip – Roller applicator utilized

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427172, 427178, 427209, 427223, 156229, 156322, 156324, B05D 100

Patent

active

059195177

ABSTRACT:
A method and apparatus for extrusion coating both sides of a metal strip. A metal strip, such as aluminum alloy strip, is moved through a pre-conditioner, two extrusion dies, a post-heater and a cooling system. Both sides of the strip are coated with thin coatings of thermoplastic polymers. The coated metal strip is useful for containers, such as cans and can ends, as well as for automobiles, appliances, aerospace, construction and electrical devices.

REFERENCES:
patent: 3206848 (1965-09-01), Rentmeester
patent: 3832962 (1974-09-01), Rolles
patent: 4486497 (1984-12-01), Mizutani
patent: 4517255 (1985-05-01), Kanda et al.
patent: 4614691 (1986-09-01), Inui et al.
patent: 4957820 (1990-09-01), Heyes et al.
patent: 5059460 (1991-10-01), Heyes et al.
patent: 5093208 (1992-03-01), Heyes et al.
patent: 5149389 (1992-09-01), Heyes et al.
patent: 5407702 (1995-04-01), Smith et al.
Thakrar et al., Development of a Dual Extrusion Die, Soc. Plast. Eng., Technical Paper, Vol. 21, pp. 366-369, (1975) (No month avail).

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