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:
May. 16, 1995
Filed:
Nov. 05, 1992
Minoru Ishida, Osaka, JP;
Shoji Shiraishi, Hyogo, JP;
Nippon Paint Co., Ltd., Osaka, JP;
Abstract
A method for degreasing iron, zinc or aluminum metal or an alloy comprising two or more of these metals to be processed by bringing a degreasing solution in contact with the metal to be processed, wherein said degreasing solution contains an alkali silicate, a water-soluble polycarboxylate and a nonionic surfactant and is controlled so as to satisfy the following 1, 2, 3 and 4 conditions. 1 The pH value of the degreasing solution is 10.5 or more. 2 The concentration of an alkali silicate is 100 ppm or more upon converting into the Si element and satisfactory for the following (a) equation:
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile