Claims
- 1. A single phase flux composition comprising:
- (a) 1 to 6% by weight pimelic acid,
- (b) 25 to 75% by weight of a first organic solvent, and
- (c) 10 to 35% by weight of a second organic solvent having a higher evaporation temperature than said first organic solvent, said second organic solvent being (i) soluble in said first organic solvent (ii) capable of substantially dissolving the pimelic acid in said composition upon evaporation of said first organic solvent therefrom, and (iii) capable of dissolving any water in said composition in an amount of up to 2% by weight upon evaporation of said first organic solvent therefrom.
- 2. The composition of claim 1, wherein said flux composition contains water in an amount of up to 2% by weight.
- 3. The composition of claim 2, wherein said second solvent is selected from the group consisting of propylene glycol monobutyl ether, propylene glycol monopropyl ether and diethylene glycol monomethyl ether.
- 4. The composition of claim 3, wherein said first organic solvent is selected from the group consisting of isopropanol, n-propanol and benzyl alcohol.
- 5. The composition of claim 1, wherein said second solvent is selected from the group consisting of propylene glycol monobutyl ether, propylene glycol monopropyl ether and diethylene glycol monomethyl ether.
- 6. The composition of claim 5, wherein said first organic solvent is selected from the group consisting of isopropanol, n-propanol and benzyl alcohol.
Parent Case Info
This is a divisional of copending application, Ser. No. 08/251,806 filed on May 31, 1994.
US Referenced Citations (8)
Divisions (1)
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Number |
Date |
Country |
Parent |
251806 |
May 1994 |
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