The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 23, 1991
Filed:
Apr. 10, 1990
Ernesto Brandolese, Graffignana, IT;
Agip Petroli S.p.A., Rome, IT;
Abstract
Lubricant fluids for the cold-rolling of steel, comprising one or more organic carbonates of general formula (I) ##STR1## where R and R', which can be identical or different, represent a C.sub.6 -C.sub.30 linear or branched alkyl, cycloalkyl or cycloalkyl-alkyl radical, possibly mixed, in a quantity sufficient to provide the composition with the lubricant power necessary for the particular application, with a mineral oil base. These lubricant fluids can be conveniently used in the cold-rolling of any type of steel, either as whole oils or, after adding suitable quantities of emulsifiers, as oil concentrates for forming aqueous emulsions or microemulsions. In addition to possessing all the typical characteristics of rolling fluids, they are also able to minimize the formation of carbon residues and deposits in the subsequent annealing process.