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:
Mar. 08, 1994
Filed:
Jul. 30, 1992
Applicant:
Inventors:
Kuniaki Otsuka, Osaka, JP;
Eiichi Torikai, Yao, JP;
Shigemitsu Kawagishi, Suita, JP;
Kazuyoshi Okuno, Ashiya, JP;
Assignee:
Okuno Chemical Industries Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
106-128 ; 106-105 ;
Abstract
An electroless palladium plating composition which comprises (1) 0.001-0.1 mol/l of a palladium compound, (2) 0.01-1 mol/l of a hypophosphite compound, (3) 0.01-5 mol/l of at least one member selected from the group consisting of ammonia and alkylamine compounds, (4) 0.01-20 mg/l of high-molecular weight polyethyleneimine having molecular weight of 300 to 100000 and (5) 0.01-10 g/l of an aliphatic alkyenylamine, and which is used at a pH in the range of 5-10.