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:
Feb. 16, 1999
Filed:
Jan. 15, 1997
Applicant:
Inventors:
Mikiyuki Ichiba, Fukuyama, JP;
Hiroshi Kubo, Fukuyama, JP;
Yoshinori Yomura, Fukuyama, JP;
Takeshi Miura, Ohmiya, JP;
Kazuyuki Suda, Ohmiya, JP;
Assignees:
NKK Corporation, Tokyo, JP;
LeaRonal Japan Inc., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25D / ;
U.S. Cl.
CPC ...
205302 ; 205253 ; 205254 ; 106-125 ;
Abstract
An additive for an acidic tinplating bath comprises: an additive ingredient (A) prepared by adding oxypropylene to polyoxyethylene glycol and having an average molecular weight ranging from 3000 to 18000; an additive ingredient (B) prepared by adding oxypropylene to polyoxyethylene glycol and having an average molecular weight ranging from 300 to 1500; and the additive ingredient (A) and the additive ingredient (B) having a weight ratio of the additive ingredient (A) to the additive ingredient (B) being from 97/3 to 40/60.