Patent US3865641A successfully refreshed from Google Patents.
US3865641A
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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 08:03
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.
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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 |