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:
Apr. 17, 2001
Filed:
Dec. 17, 1998
Applicant:
Inventor:
Cavan Hugh O'Driscoll, Selby, GB;
Assignee:
MacDermid, Inc., Waterbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D 3/32 ; C25D 7/06 ; H01B 1/02 ; C23C 1/600 ;
U.S. Cl.
CPC ...
C25D 3/32 ; C25D 7/06 ; H01B 1/02 ; C23C 1/600 ;
Abstract
There is a disclosed composition suitable for use in a process for electroplating surfaces with tin, comprising: a) one or more acids selected from sulphuric acid, sulphamic acid, aryl sulphonic acids, alkyl sulphonic acids and alkanol sulphonic acids, b) one or more addition agents comprising a mono-, di- or tri-substituted phenol (each optionally alkyoxylated) or a mixture of two or more such compounds, in which at least one of the substituents includes a secondary, tertiary or quaternary nitrogen atom, c) a tin source and d) water. There is also disclosed a method of tin plating using the composition of this invention.