C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
117/95
C23C 22/00 (2006.01) B05D 1/36 (2006.01) B05D 7/16 (2006.01) C09D 167/00 (2006.01)
Patent
CA 1243563
HEAT RESISTANT PRECOATED STEEL SHEET AND PROCESS FOR THE PRODUCTION THEREOF Abstract of the Disclosure A heat resistant precoated steel sheet suitable for use in the manufacture of a muffler of an automobile exhaust gas system comprising: a hot dip aluminized steel sheet, a chromate pretreatment layer formed on at least one surface of said hot dip aluminized steel sheet and having a chromium pick- -up of 10 to 50 mg/m2, a primer coat formed on said pretreatment layer and comprising a cured polyamide imide resin and 8 to 52 parts by weight, based on 100 parts by weight of said resin, of strontium chromate intimately admixed with said resin, and a top coat formed on said primer coat and comprising a cured silicone-modified polyester resin with a modification degree of from 30 to 50 % and o to 32 parts by weight, based on 100 parts by weight of said resin, of aluminum scale in- timately admixed with said resin.
500711
Masuhara Kenichi
Wakabayashi Kouji
Yamayoshi Kazuo
Nisshin Steel Co. Ltd.
Riches Mckenzie & Herbert Llp
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