Back to results
US 11,794,288 B2Granted
Rosin-modified product, flux composition, liquid flux, flux cored solder and solder paste
AssigneeSenju Metal Industry Co., Ltd.
InventorToshio Mizowaki
Life of this patent
Estimating the term…
Abstract
A rosin-modified product being a reactant of a rosin or a rosin derivative and an alkanolamine represented by a following Formula (1) NH3-n—(R—OH)n(n≤3); or (1) being produced by a reaction of a rosin or a rosin derivative, an organic acid and an alkanolamine.
Claims8
A flux composition comprising:
- a rosin-modified product being a reaction product of a rosin or a rosin derivative and an alkanolamine represented by a following Formula (1)
- NH3-n—(R—OH)n(n≤3);
- (1)
- a phosphoric acid ester or a phosphonic acid ester;
- and
- a sebacic acid,
- wherein a mixing amount of the phosphoric acid ester or the phosphonic acid ester is 1.0% by weight to 15% by weight based on a total amount of the flux composition,
- wherein a mixing amount of the sebacic acid is more than 0% by weight and 2% or less by weight based on a total amount of the flux;
- and
- wherein the flux composition has an effect to suppress an occurrence of migration.
7 more elements
Dependencies are inferred from the claim text.