US3715211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and product of cold sealing an anodized aluminum article by a photo-polymerization process
Assignee: Horizons Inc
•
Filing: 1971-02-01
•
Granted: 1973-02-06
•
Expires: 1991-02-01
Abstract
Abstract A method of cold sealing an anodized aluminum article comprising photopolymerizing a cross-linked polymer in situ in the pores of the surface of the anodized layer on the article and the product produced thereby are described.
Inventors
- 👤 H Quaintance
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:27
CPC Classifications
B; B05; B05D; B05D3/00; B05D3/06; B05D7/00; B05D7/14; B05D7/16; C; C25; C25D; C25D11/00; C25D11/02; C25D11/04; C25D11/18; C25D11/24; C25D11/246; B05D2202/00; B05D2202/20; B05D2202/25; B05D3/068
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
73 words
A method of improving the properties of an anodized aluminum article which comprises: applying to the porous surface of an unsealed anodized aluminum layer a photopolymerizable liquid composition comprising at least one polymerizable acrylic monomer, and at least one crosslinking agent; and cold sealing the porous surface of said article by exposing said composition to a suitable dose of radiation thereby photopolymerizing the composition in the pores of the surface of said article.
Claim 2
Independent Claim
73 words
A method of improving the properties of an anodized aluminum article which comprises: applying to the porous surface of an unsealed anodized aluminum layer a photopolymerizable liquid composition comprising at least one polymerizable acrylic monomer, and at least one crosslinking agent; and cold sealing the porous surface of said article by exposing said composition to a suitable dose of radiation thereby photopolymerizing the composition in the pores of the surface of said article.
Claim 3
Dependent Claim
29 words
The method of claim 1 wherein the anodized article contains a developed and fixed silver image in the pores of said article prior to application of said polymerizable composition.
Claim 4
Dependent Claim
13 words
The method of claim 1 wherein the crosslinking agent is a difunctional monomer.
Claim 5
Dependent Claim
15 words
The method of claim 1 wherein the polymerizable composition also includes a sensitizer or initiator.
Claim 6
Dependent Claim
16 words
The method of claim 1 wherein photopolymerization is the result of exposure to ultra violet radiation.
Claim 7
Dependent Claim
18 words
The method of claim 1 wherein the photopolymerizable composition comprises acrylamide, N,N''-methylenebisacrylamide and a solvent for said acrylamides.
Claim 8
Dependent Claim
34 words
A cold sealed anodized article in which the pores of the porous anodized surface layer are filled with a cross-linked copolymer of at least one photopolymerizable acrylic monomer and at least one cross-linking agent.
Claim 9
Dependent Claim
34 words
A cold sealed anodized article in which the pores of the porous anodized surface layer are filled with a cross-linked copolymer of at least one photopolymerizable acrylic monomer and at least one cross-linking agent.
Claim 10
Dependent Claim
25 words
A cold sealed anodized article according to claim 7 in which the photopolymerizable monomer impregnated in the pores is a mixture of acrylamides and acrylonitrile.
Claim 11
Dependent Claim
26 words
A cold sealed anodized article according to claim 7 in which a developed and fixed silver image is in the pores along with the crosslinked copolymer.
Claim 12
Dependent Claim
28 words
A cold Sealed anodized article according to claim 7 in which the crosslinked polymer is a copolymer of at least one acrylic monomer and a difunctional crosslinking agent.
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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) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |