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:
Jul. 07, 1987
Filed:
Jul. 11, 1985
Applicant:
Inventors:
Nobuhiro Ayukawa, Kanagawa, JP;
Yasuhiko Konishi, Kanagawa, JP;
Assignee:
Nippon Dacro Shamrock Co., Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B / ; C07C / ; C11D / ; C23G / ;
U.S. Cl.
CPC ...
148-62 ; 106 1405 ; 134 40 ; 148 / ; 252100 ; 252104 ; 252143 ; 252147 ; 252170 ; 252171 ; 570117 ;
Abstract
A non-aqueous chromating treatment solution comprising a chlorofluorocarbon solvent, chromic acid anhydride, an alcohol solubilizer, and an organic carboxylic acid reaction promotor gives a higher coating amount of chromate film and better corrosion resistance effect.