US3865641A
Expired / Lapsed
US
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Compositions for use in soldering stainless steels
Assignee: Lake Chemical Co
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Filing: 1972-01-14
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Granted: 1975-02-11
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Expires: 1992-01-14
Abstract
Abstract Soldering compositions for use in soldering stainless steels comprising an intimate mixture of a particulate or powdered solder for use in soldering stainless steels and an amine-type inhibiting agent and, desirably, a wetting agent. The compositions are adapted to be mixed with a soldering flux such as a phosphoric acid for use in soldering stainless steels.
Inventors
- 👤 Lester Aronberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:28
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/02; B23K35/0222; B23K35/0244; B23K35/24; B23K35/26; B23K35/262; B23K35/36; B23K35/3601; B23K35/3611
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
65 words
A SOLDERING COMPOSITION FOR USE IN SOLDERING STAINLESS STEELS CONSISTING ESSENTIALLY OF AN INTIMATE MIXTURE OF FROM ABOUT 95 TO ABOUT 98 PERCENT, BY WRIGHT, OF A SOLDER IN PARTICULATE FROM FOR USE IN SOLDERING STAINLESS STEELS AND FROM ABOUT 5 TO ABOUT 2 PERCENT, BY WEIGHT, OF AN INHIBITING AGENT EFFECTIVE TO INHIBIT THE ACTION OF A PHOSPHOROUS-CONTAINING ACID USED IN SOLDERING STAINLESS STEELS.
Claim 2
Dependent Claim
65 words
A SOLDERING COMPOSITION FOR USE IN SOLDERING STAINLESS STEELS CONSISTING ESSENTIALLY OF AN INTIMATE MIXTURE OF FROM ABOUT 95 TO ABOUT 98 PERCENT, BY WRIGHT, OF A SOLDER IN PARTICULATE FROM FOR USE IN SOLDERING STAINLESS STEELS AND FROM ABOUT 5 TO ABOUT 2 PERCENT, BY WEIGHT, OF AN INHIBITING AGENT EFFECTIVE TO INHIBIT THE ACTION OF A PHOSPHOROUS-CONTAINING ACID USED IN SOLDERING STAINLESS STEELS.
Claim 3
Dependent Claim
16 words
A composition as claimed in claim 1 which includes a small amount of a wetting agent.
Claim 4
Dependent Claim
16 words
A composition as claimed in claim 1 wherein the inhibiting agent is a nitrogen-containing inhibiting agent.
Claim 5
Dependent Claim
64 words
A composition as claimed in claim 3 wherein the nitrogen-containing inhibiting agent is selected from the group consisting of 5- and 11-mole ethylene oxide adducts of dehydroabietylamine; polyalkoxylated mono- and diamines having a C8-C22 aliphatic hydrocarbon substituted on the nitrogen and containing from 2 to 50 ethylene oxide groups; fatty acid amide condensates; alkyl amino-alkyl phosphates; urea; and alkyl, aryl and alkaryl substituted ureas.
Claim 6
Dependent Claim
23 words
A composition as claimed in claim 1 wherein the particles comprising the solder have a mesh size of about 90 to about 150.
Claim 7
Dependent Claim
79 words
A composition for use in soldering stainless steels comprising a mixture of (a) an intimate mixture consisting essentially of from about 95 to about 98 percent, by weight, of a solder in particulate form for use in Soldering stainless steels and from about 5 to about 2 percent, by weight, of an inhibiting agent effective to inhibit the action of a phosphorous-containing acid used in soldering stainless steels, and (b) an acid flux comprising at least one phosphorous-containing acid.
Claim 8
Dependent Claim
79 words
A composition for use in soldering stainless steels comprising a mixture of (a) an intimate mixture consisting essentially of from about 95 to about 98 percent, by weight, of a solder in particulate form for use in Soldering stainless steels and from about 5 to about 2 percent, by weight, of an inhibiting agent effective to inhibit the action of a phosphorous-containing acid used in soldering stainless steels, and (b) an acid flux comprising at least one phosphorous-containing acid.
Claim 9
Dependent Claim
20 words
A compositin as claimed in claim 6 wherein the ratio of (a) to (b) is about 1:1 to about 4:1.
Claim 10
Dependent Claim
14 words
A composition as claimed in claim 6 wherein the acid flux is orthophosphoric acid.
Claim 11
Dependent Claim
36 words
A composition as claimed in claim 6 wherein the acid flux is a composition comprising, as essential ingredients, a major proportion of orthophosphoric acid and a minor proportion of finely divided copper or a copper salt.
Claim 12
Dependent Claim
39 words
A method of making a powdered solder-flux composition for use in soldering stainless steels comprising forming a powdered solder-inhibiting composition as claimed in claim 1, and admixing therewith a flux comprising at least one phosphorous-containing acid to said composition.
Claim 13
Dependent Claim
23 words
A method according to claim 10 wherein the ratio of the powdered solder-inhibiting composition to the flux is about 1:1 to about 4:1.
Claim 14
Dependent Claim
12 words
A method according to claim 10 wherein the flux is orthophosphoric acid.
Claim 15
Dependent Claim
18 words
In the soldering of stainless steels, the improvement which comprises utilizing a composition as claimed in claim 1.
Claim 16
Dependent Claim
18 words
In the soldering of stainless steels, the improvement which comprises utilizing a composition as claimed in claim 6.
Claim 17
Dependent Claim
31 words
In the soldering of stainless steel in which a soldering flux is used, the improvement which comprises utilizing a powdered solder-flux composition made in accordance with the method of claim 10.
References Cited (Backward Citations)
US1882734A
Cited
US1882567A
Cited
US2508501A
Cited
US2480723A
Cited
US2581820A
Cited
US2547771A
Cited
US2772192A
Cited
US3597285A
Cited
US3660127A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |