Method for improving magnesium oxide steel coatings using non-aqueous solvents
First Claim
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1. A slurry for use in the initial coating of silicon steel prior to high temperature annealing which results is a decrease in tight magnesia consisting essentially of:
- (a) 0.1-20%, by weight, magnesium oxide; and
(b) the balance a non-aqueous solvent in which said magnesium oxide is insoluble wherein the solvent is selected from the group consisting of ethylene glycol mono butyl ether, ethylene glycol, and isopropyl alcohol.
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Abstract
This invention is directed to non-aqueous magnesium oxide slurries and the use thereof to coat silicon steels prior to high temperature annealing.
8 Citations
1 Claim
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1. A slurry for use in the initial coating of silicon steel prior to high temperature annealing which results is a decrease in tight magnesia consisting essentially of:
- (a) 0.1-20%, by weight, magnesium oxide; and
(b) the balance a non-aqueous solvent in which said magnesium oxide is insoluble wherein the solvent is selected from the group consisting of ethylene glycol mono butyl ether, ethylene glycol, and isopropyl alcohol.
- (a) 0.1-20%, by weight, magnesium oxide; and
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Current AssigneeMarine Magnesium Company A Partnership of PA
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Original AssigneeCalgon Carbon Corporation (Kuraray Company Limited)
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InventorsHowe, Michael W.
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Primary Examiner(s)Silverbert, Sam
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Application NumberUS07/176,572Time in Patent Office298 DaysField of Search148/6.14 R, 148/113US Class Current106/287.23CPC Class CodesC21D 1/70 while heating or quenchingC23C 24/00 Coating starting from inorg...H01F 1/14783 with insulating coating
