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:
Jun. 28, 1983
Filed:
Jun. 22, 1981
Paul Spekman, Jr, Bloomington, MN (US);
Fremont Industries, Inc., Shakopee, MN (US);
Abstract
A preparation of an aqueous pre-treatment working solution for ferrous metals, wherein the composition includes in its formulation a composite alkaline builder including sodium hydroxide, sodium metasilicate, and sodium carbonate, water conditioners including sodium tripolyphosphate and tetrasodium ethylenediaminetetraacetate, a brightener consisting of alpha-sodium glucoheptonate dihydrate, a surfactant including a mixture of the sodium salt of petroleum sulfonic acid and linear ethoxylated alcohol organic phosphate ester complex, and a modified straight chain aliphatic polyether, and an emulsion coupling agent consisting of hexylene glycol. The formulation may be utilized at a temperature which is only very slightly or modestly elevated above ambient, and may be cooled so as to demulsify the soil retaining oils prior to disposal.