Patent US3848755A successfully refreshed from Google Patents.
US3607344A
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Fluorescent coatings
Assignee: Wyomissing Corp
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Filing: 1967-11-17
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Granted: 1971-09-21
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Expires: 1987-11-17
Abstract
Abstract Maximum effectiveness of fluorescent dyes in coatings is achieved by fusing or casting a fluorescent dye-impregnated resin into a continuous light-reflective and emissive film. Exceptionally pure colors are obtained due to the absence of any extraneous or different film-forming resins and high reflectivity is achieved due to the absence of discrete dye-impregnated resin particles that present irregular surfaces to cause a random scattering of incident light. In those instances where comparatively brittle resin systems are used to coat flexible substrates, special methods are provided for tightly adhering these resins to the substrate.
Inventors
- 👤 Michael F Baumann
- 👤 Eugene H Reich
- 👤 Charles E Coco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:35
CPC Classifications
B; B44; B44F; B44F1/00; B44F1/02; B44F1/04; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/24868; Y10T428/24884; Y10T428/24893; Y10T428/24901; Y10T428/31504; Y10T428/31855; Y10T428/31859; Y10T428/3187; Y10T428/31873; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31906
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
24 words
A flexible substrate according to claim 1, wherein the resin is selected from the class consisting of modified sulfonamides and alcohol modified urea formaldehydes.
Claim 2
Dependent Claim
38 words
A flexible substrate according to claim 1, wherein a second coating layer is applied over the continuous film, which second layer consists essentially of a dispersion of discrete particles of the fluoresceNt pigment held in transparent resinous matrix.
Claim 3
Dependent Claim
43 words
A flexible substrate according to claim 1, wherein a tie coat is applied to the substrate to improve the adhesion of the light reflective and emissive coating, the tie coat being selected from the class consisting of acrylic resins, vinyl-toluylene copolymers, and latexs.
Claim 4
Dependent Claim
35 words
A flexible substrate according to claim 1, wherein the light reflective and emissive coating is overprinted with a similar coating layer having different color values than the base coating in order to form process colors.
Claim 5
Independent Claim
81 words
A method for applying a glossy, vivid fluorescent coating which comprises dissolving a pigment in a solvent, applying the solution to a flexible substrate, and evaporating the solvent to form a continuous film of pigment characterized in that the pigment consists essentially of a resin impregnated with a fluorescent dye and the resin is selected from those that are receptive to the fluorescent dyes, do not interfere with the fluorescent of the dye, and provide a high degree of light fastness.
Claim 6
Dependent Claim
44 words
A method for forming a vivid, fluorescent matte finish coating on a flexible substrate comprising the step of applying to the surface of the coating of claim 5, a second coating layer consisting essentially of a dispersion of discrete particles of the fluorescent pigment.
Claim 7
Dependent Claim
37 words
A method for forming vivid, fluorescent coatings of process colors which comprises the step of overprinting the coating of claim 5, with a second similar coating that has a different color value than does the base coating.
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) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |