Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Silicon dioxide – silicic acid – orthosilicate – or...
Reexamination Certificate
2011-06-07
2011-06-07
Caldarola, Glenn (Department: 1771)
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Silicon dioxide, silicic acid, orthosilicate, or...
C508S484000, C508S171000, C508S154000
Reexamination Certificate
active
07956019
ABSTRACT:
To provide a lubricant for hot plastic working which is excellent in lubricating properties, feedability and operability and will produce no adverse affects on the corrosion resistance of the products.A lubricant for hot plastic working which is characterized in that the composition is comprised of, in an anhydrous condition, 50 to 80% by mass of iron oxide, 20 to 50% by mass of sodium silicate and 1 to 20% by mass of calcium oxide and that the total content of the impurities of zinc oxide, lead oxide and copper oxide is not higher than 5% by mass, where the content of the stabilizer is not counted. This lubricant is suited for use in lubricating guide shoes in piercing-rolling of high-Cr steel species.
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International Preliminary Report on Patentability in corresponding PCT/JP2007/055140 issued Sep. 16, 2008.
International Search Report in corresponding PCT/JP2007/055140 issued Jun. 17, 2007.
Written Opinion in corresponding PCT/JP2007/055140 issued Jun. 17, 2007.
Nakanishi Tetsuya
Saito Ken-ichi
Caldarola Glenn
Goloboy Jim
Marshall & Gerstein & Borun LLP
Sumitomo Metal Industries Ltd.
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