US3647520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron beam cross-linking of coating compositions containing ethylene unsaturated carboxylic acid copolymers and a melamine composition
Assignee: Continental Can Co Inc
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Filing: 1970-07-06
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Granted: 1972-03-07
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Expires: 1990-07-06
Abstract
Abstract A process for coating articles wherein a thin film containing a mixture of a copolymer of ethylene and an ethylenically unsaturated carboxylic acid and a melamine composition is applied to the surface of the article and the film mixture cross-linked to form a hardened coating by irradiation with a beam of highenergy electrons.
Inventors
- 👤 Vishnu J Gor
- 👤 Ernesto H Manuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:39
CPC Classifications
B; B05; B05D; B05D3/00; B05D3/06; B05D3/068; C; C09; C09D; C09D123/00; C09D123/02; C09D123/04; C09D123/08; Y; Y10; Y10S; Y10S260/00; Y10S260/31
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
37 words
The process of claim 1 wherein the copolymer is comprised of about 75 to about 90 weight percent of ethylene and about 10 to about 25 weight percent of the Alpha , Beta -ethylenically unsaturated carboxylic acid.
Claim 2
Dependent Claim
17 words
The process of claim 1 wherein the Alpha , Beta -ethylenically unsaturated carboxylic acid is acrylic acid.
Claim 3
Dependent Claim
11 words
The process of claim 1 wherein the melamine composition is melamine.
Claim 4
Dependent Claim
13 words
The process of claim 1 wherein the melamine composition is a melamine/formaldehyde condensate.
Claim 5
Dependent Claim
14 words
The process of claim 1 wherein the melamine composition is an alkylated melamine/formaldehyde condensate.
Claim 6
Dependent Claim
16 words
The process of claim 1 wherein the melamine composition is the hexamethyl ether of hexamethylol melamine
Claim 7
Dependent Claim
19 words
The process of claim 1 wherein the deposited film is irradiated with a dosage of 0.1 to 10 megarads.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |