Metal deforming – With 'coating' of work
Patent
1997-11-03
1999-10-12
Simmons, David A.
Metal deforming
With 'coating' of work
428622, 428626, 428458, 220 6222, 156215, 427409, B21D 2228, B32B 1508
Patent
active
059641134
ABSTRACT:
A method of producing a resin-coated steel sheet for drawn-and-ironed cans. The resin-coated steel sheet has a steel sheet with a tin-coat on each side and a resin layer of a first crystalline thermoplastic polyester resin on one of the tin-coats and a second non-crystalline thermoplastic polyester resin on the first crystalline thermoplastic polyester resin. The first crystalline thermoplastic polyester resin has an alloying ratio of: 50.ltoreq.alloying ratio<100. The second non-crystalline thermoplastic polyester resin has an alloying ratio of 0<alloying ratio<50. The method includes thermal fusion of a mixture of 95-5 percent by weight of a crystalline polyester resin and 5-95 percent of a non-crystalline polyester resin to produce the first crystalline thermoplastic polyester resin and the second non-crystalline thermoplastic polyester resin. The first crystalline thermoplastic polyester resin and the second non-crystalline thermoplastic polyester resin are coated onto the tin-coated steel sheet using two-layer extrusion T-die and then cooled quickly.
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Hiraoka Takashi
Niimi Hiroji
Wake Ryousuke
Yoshihara Ryoichi
Gray Linda L.
Mitsui Chemicals Inc.
Nippon Steel Corporation
Simmons David A.
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