US4025037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for soldering an electrocoated substrate
Assignee: Mitsubishi Electric Corp
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Filing: 1975-05-28
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Granted: 1977-05-24
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Expires: 1995-05-28
Abstract
Abstract A process for soldering a metal substrate coated with an electrodeposited non-peelable coating comprising 35-65 wt parts of methacryl ester, 10-40 wt parts of acrylonitrile, 2-15 wt parts of methacrylic acid, 3-10 wt parts of acrylamide and/or vinyl acetate, in 100 parts of resin.
Inventors
- 👤 Kyoichi Shibayama
- 👤 Hiroshi Ono
- 👤 Eiki Jidai
- 👤 Hideo Saeki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:40
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/44; C09D5/4407; C09D5/4411; B; B23; B23K; B23K35/00; B23K35/22; B23K35/226; H; H01; H01B; H01B13/00; H01B13/06; H01B13/065; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/447; H01B7/00; H01B7/17; H01B7/18; Y; Y10; Y10S; Y10S228/00; Y10S228/904
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
70 words
In a method of soldering a coated metal substrate, the improvement which comprises applying solder onto said coated metal substrate wherein the coating thereon is an electrodeposited water-dispersed varnish of a copolymer of 30- 65 wt. parts of methacrylic ester, 10-40 wt. parts of acrylonitrile, 2-15 wt. parts of methacrylic acid and 3-30 wt. parts of an alkoxyacrylamide, vinyl acetate or a mixture thereof, per 100 parts of said varnish.
Claim 2
Dependent Claim
70 words
In a method of soldering a coated metal substrate, the improvement which comprises applying solder onto said coated metal substrate wherein the coating thereon is an electrodeposited water-dispersed varnish of a copolymer of 30- 65 wt. parts of methacrylic ester, 10-40 wt. parts of acrylonitrile, 2-15 wt. parts of methacrylic acid and 3-30 wt. parts of an alkoxyacrylamide, vinyl acetate or a mixture thereof, per 100 parts of said varnish.
Claim 3
Dependent Claim
14 words
The method of claim 1 wherein said water-dispersed varnish is prepared by emulsion copolymerization.
Claim 4
Dependent Claim
16 words
The method of claim 1, wherein said resin has an average molecular weight of 10,000- 500,000.
Claim 5
Dependent Claim
18 words
The method of claim 1, wherein said alkoxyacrylamide is N-n-butoxymethyl acrylamide, N-ethoxymethyl acrylamide, N-n-propoxymethyl acrylamide or N-n-butoxyethyl acrylamide.
Claim 6
Dependent Claim
29 words
The method of claim 1, wherein said methacrylic ester is the iso-butyl, sec-butyl, n-butyl, n-propyl, ethyl, iso-propyl, n-octyl, n-hexyl, tert-butyl, n-amyl, iso-amyl, n-heptyl or methyl ester of methacrylic acid.
References Cited (Backward Citations)
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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) | 1980-05-23 | 1980-11-22 | 1981-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-23 | 1984-11-22 | 1985-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-23 | 1988-11-22 | 1989-05-24 | $7700.00 | Window Closed / Lapsed |