Low-residual type soldering flux
US5131962A · kind A · utility
7Cited by
7References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1991 |
| Grant date | Jul 21, 1992 |
| Priority date | — |
| Expiry date | Jun 24, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K35/3612
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A soldering flux includes at least one acid component and at least one ester component. The acid component is selected from among dibasic carboxylic acid, hydroxycarboxylic acid and keto carboxylic acid. The ester component is selected from among phosphoric ester, phosphorous ester and hypophosphite ester.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.