Polyamine, carboxylic acid flux composition and method of soldering
US8434667B2 · kind B2 · utility
3Cited by
30References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2011 |
| Grant date | May 7, 2013 |
| Priority date | — |
| Expiry date | Sep 30, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2101/42
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A flux composition is provided, comprising, as initial components: a carboxylic acid; and, a polyamine fluxing agent represented by formula I:with the proviso that when the polyamine fluxing agent represented by formula I is according to formula Ia:then zero to three of R1, R2, R3 and R4 is(are) a hydrogen. Also provided is a method of soldering an electrical contact using the flux composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.