Resin-coated steel sheet for drawn-and-ironed cans and drawn-and

Details Resin-coated steel sheet for drawn-and-ironed cans and drawn-and Resin-coated steel sheet for drawn-and-ironed cans and drawn-and

1994-03-18

1998-02-03

Simmons, David A.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428622, 428458, 220457, B32B 1508

Patent

active

057142734

ABSTRACT:
A resin-coated steel sheet for drawn-and-ironed cans and a method of producing the resin-coated steel sheet. 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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Mitchel Shen and Hiromichi Kawai, "Properties and Structure of Polymeric Alloys", AICHE Journ., vol. 24, #1, Jan. 1978.
Metal Finishing Guidebook Directory, 43rd Annual Edition, pp. 510-513, 1975.
Miura et al., Chemical Abstracts, vol. No. 82, Item No. 157925w, 1975.
World Patent Index, Abstract of JP 1145137A, AN No. 89-209344, 1989.

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