US4107013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultraviolet curable latexes
Assignee: Lilly Industries Inc
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Filing: 1976-12-13
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Granted: 1978-08-15
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Expires: 1996-12-13
Abstract
Abstract An improved ultraviolet curable aqueous latex paint suitable for use as coil coatings comprises a high molecular weight primary latex binder in combination with minor amounts of an emulsified low molecular weight cross-linking agent adapted to cross-link the high molecular weight latex particles upon exposure to ultraviolet energy.
Inventors
- 👤 Vincent Daniel McGinniss
- 👤 Robert Joseph Seidewand
- 👤 James Robert Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:13
CPC Classifications
C; C08; C08F; C08F265/00; C08F265/04; C08L; C08L51/00; C08L51/003
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
156 words
An ultraviolet curable aqueous latex coating composition, comprising: an aqueous latex mixture of a high molecular weight polymer and a low molecular weight cross-linking polymer wherein the mixture contains between 5% and 35% of said low molecular weight cross-linking polymer and between 1% and 5% of an ultraviolet sensitizer based on the combined weight of the cross-linking polymer and the high molecular weight polymer; said high molecular weight polymer being a latex containing polymer particles having an average molecular weight greater than 100,000, said high molecular weight polymer particles comprising a core polymer of copolymerized ethylenically unsaturated monomers and a shell polymer portion of copolymerized difunctional monomers containing unreated allyl surface groups preferentially orientated on polymer particle surfaces; said low molecular weight cross-linking polymer having a molecular weight between about 300 and 3,000 and containing ethylenically unsaturation for cross-linking with the allyl surface groups on said high molecular weight polymer particles upon exposure to ultraviolet energy.
Claim 2
Dependent Claim
156 words
An ultraviolet curable aqueous latex coating composition, comprising: an aqueous latex mixture of a high molecular weight polymer and a low molecular weight cross-linking polymer wherein the mixture contains between 5% and 35% of said low molecular weight cross-linking polymer and between 1% and 5% of an ultraviolet sensitizer based on the combined weight of the cross-linking polymer and the high molecular weight polymer; said high molecular weight polymer being a latex containing polymer particles having an average molecular weight greater than 100,000, said high molecular weight polymer particles comprising a core polymer of copolymerized ethylenically unsaturated monomers and a shell polymer portion of copolymerized difunctional monomers containing unreated allyl surface groups preferentially orientated on polymer particle surfaces; said low molecular weight cross-linking polymer having a molecular weight between about 300 and 3,000 and containing ethylenically unsaturation for cross-linking with the allyl surface groups on said high molecular weight polymer particles upon exposure to ultraviolet energy.
Claim 3
Dependent Claim
35 words
The composition in claim 1 wherein the latex mixture contains 10% to 30% of said low molecular weight cross-linking polymer based upon the combined weight of the cross-linking polymer and the high molecular weight polymer.
Claim 4
Dependent Claim
40 words
The composition in claim 1 wherein the high molecular weight polymer particles contain a shell portion produced by co-reacting between about 4% and 20allyl esters of alpha-beta unsaturated carboxylic acids based on the copolymerized difunctional monomer forming the shell portion.
Claim 5
Dependent Claim
23 words
The composition in claim 1 wherein the ultraviolet sensitizer is incorporated into the low molecular weight cross-linking polymer phase of the latex mixture.
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) | 1981-08-14 | 1982-02-13 | 1982-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-14 | 1986-02-13 | 1986-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-14 | 1990-02-13 | 1990-08-15 | $7700.00 | Window Closed / Lapsed |