Metal deforming – With 'coating' of work
Patent
1983-11-14
1986-01-07
Robinson, Ellis P.
Metal deforming
With 'coating' of work
427358, 427386, 4273882, 4284258, 428418, 428458, 428463, 528 45, B21B 4500, B32B 2740
Patent
active
045627142
ABSTRACT:
A precoat metal, which has been prepared by coating a metal plate with a composition comprising (i) at least one member selected from the group consisting of (a) bis(isocyanatomethyl)cyclohexane and/or its adduct blocked with a blocking agent and (b) an isocyanate blocked with ethyleneimine and (ii) a polyol resin, and heating the thus coated metal plate to cure the coating material.
Such film, when applied as a coating to a metal plate is completely free from yellowing and thermal degradation, and also exhibits increased hardness as well as a high flexural strength, staining resistance and chemical resistance.
The precoat metal is advantageously utilized in construction materials, for example, roof decking and wall panels; and materials for light electrical appliances such as refrigerators and radios and TV, vending machine cabinets etc.
REFERENCES:
patent: 3350362 (1967-10-01), Potts
patent: 3676402 (1972-07-01), Matsui
patent: 3694389 (1972-09-01), Levy
patent: 3830785 (1974-08-01), Matsui
patent: 4046744 (1977-09-01), Jenkins
patent: 4082634 (1978-04-01), Chang
patent: 4089844 (1978-05-01), Tsou
patent: 4163094 (1979-07-01), Turpin
patent: 4238592 (1980-12-01), Schmitt
patent: 4284572 (1981-08-01), Stanley
patent: 4301053 (1981-11-01), Wolfrey
Nasu Kohji
Okamura Masanori
Tanaka Michio
Robinson Ellis P.
Takeda Chemical Industries Ltd.
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