Patent US4253769A successfully refreshed from Google Patents.
Patent US5725935A successfully refreshed from Google Patents.
US5725935A
Expired / Lapsed
US
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Signage articles and methods of making same
Assignee: 3M Co
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Filing: 1996-09-26
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Granted: 1998-03-10
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Expires: 2016-09-26
Abstract
Abstract The present invention discloses signage articles having a layer of fused dry toner powder which is fused by employing a tacky pressure-sensitive adhesive and low compression. Suitable tacky pressure-sensitive adhesives include alkyl acrylate polymers or copolymers, alkyl vinyl ether polymers or copolymers, polyisobutylene, polybutadiene, and butadiene-styrene copolymers. Such signage articles further comprise a transparent cover layer disposed over the fused dry toner powder-bearing surface. Also disclosed are methods of forming signage articles, one method comprising the steps of applying dry toner powder to a first substrate surface, applying a composition including a tacky pressure-sensitive adhesive to a second substrate surface, and laminating the two substrates to admix the dry toner powder and the tacky pressure-sensitive adhesive. Either the first or second substrate may be the transparent cover layer of the resulting signage article.
Inventors
- 👤 J. Sundar Rajan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:04
CPC Classifications
G; G03; G03G; G03G13/00; G03G13/20; G03G13/14; G03G13/16; G03G15/00; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/234; Y10T428/24; Y10T428/24802; Y10T428/25; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2996; Y10T428/2998; Y10T428/31504; Y10T428/31507; Y10T428/31551; Y10T428/31678; Y10T428/31855; Y10T428/31942; Y10T428/31971; Y10T428/31993
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
101 words
A signage article comprising: a) a first substrate having first and second major surfaces; b) fused dry toner powder adhered to the first surface of the first substrate, the fused dry toner powder comprising a colorant and a binder, the binder comprising a first adhesive that is non-tacky at about 25° C.; and c) a second substrate adhered by an adhesive layer to the fused dry toner powder and first surface of the first substrate, the adhesive layer comprising a second adhesive that is transparent and tacky at 25° C., at least one of the first and second substrates being transparent.
Claim 2
Dependent Claim
101 words
A signage article comprising: a) a first substrate having first and second major surfaces; b) fused dry toner powder adhered to the first surface of the first substrate, the fused dry toner powder comprising a colorant and a binder, the binder comprising a first adhesive that is non-tacky at about 25° C.; and c) a second substrate adhered by an adhesive layer to the fused dry toner powder and first surface of the first substrate, the adhesive layer comprising a second adhesive that is transparent and tacky at 25° C., at least one of the first and second substrates being transparent.
Claim 3
Dependent Claim
19 words
Article in accordance with claim 1 wherein the fused dry toner powder is in the form of alphanumeric symbols.
Claim 4
Dependent Claim
33 words
Article in accordance with claim 1 wherein the first substrate is selected from the group consisting of metal, wood, plastic, fibrous sheeting, retroreflective sheeting, and combinations thereof, and the second substrate is transparent.
Claim 5
Dependent Claim
14 words
Article in accordance with claim 3 wherein the fibrous sheeting is paper or cardboard.
Claim 6
Dependent Claim
14 words
Article in accordance with claim 3 wherein the retroreflective sheeting comprises retroreflective cube-corner elements.
Claim 7
Dependent Claim
24 words
Article in accordance with claim 3 wherein the first substrate is selected from the group consisting of encapsulated-lens retroreflective sheeting and enclosed-lens retroreflective sheeting.
Claim 8
Dependent Claim
60 words
Article in accordance with claim 1 wherein the first adhesive is selected from the group consisting of polymers in the general classes of polyesters, epoxies, polyalkylacrylates, polyalkylmethacrylates, polyurethanes, cellulose esters, polycarbonates, polyolefins, polyvinyl acetals, fluorine-containing polymers, ionomers, ionomeric copolymers and copolymers of styrene with n-butylmethacrylate, n-butylacrylate, butadiene and copolymers of ethylene or propylene and vinylacetate, acrylic acid or methacrylic acid.
Claim 9
Dependent Claim
67 words
Article in accordance with claim 1 wherein the second adhesive is selected from the group consisting of alkylacrylate polymers and copolymers; copolymers of alkylacrylates with acrylic acid; terpolymers of alkylacrylates, acrylic acid, and vinyl-lactates; vinyl ether polymers and copolymers; polyisoalkylenes; polyalkyldienes; alkyldiene-styrene copolymers; styrene-isoprene-styrene block copolymers; polydialkylsiloxanes; polyalkylphenylsiloxanes; natural rubbers; synthetic rubbers; chlorinated rubbers; latex crepe; rosin; cumarone resins; alkyd polymers; and polyacrylate esters and mixtures thereof.
Claim 10
Dependent Claim
147 words
A signage article comprising: (a) a liner; (b) a first adhesive layer having first and second major surfaces, the first surface removably adhered to the liner; (c) a plastic film layer having first and second major surfaces, the first major surface adhered to the second major surface of the adhesive layer; (d) a retroreflective layer having first and second surfaces, the first surface bonded to the second major surface of the film layer; (e) a plurality of areas of fused dry toner powder adhered to the second surface of the retroreflective layer, the fused dry toner powder comprising a colorant and a binder, the binder comprising a first adhesive that is non-tacky at about 25° C.; and (f) a second adhesive layer adhered to the fused dry toner powder and second surface of the retroreflective layer, the second adhesive layer being transparent and tacky at 25° C.
Claim 11
Dependent Claim
147 words
A signage article comprising: (a) a liner; (b) a first adhesive layer having first and second major surfaces, the first surface removably adhered to the liner; (c) a plastic film layer having first and second major surfaces, the first major surface adhered to the second major surface of the adhesive layer; (d) a retroreflective layer having first and second surfaces, the first surface bonded to the second major surface of the film layer; (e) a plurality of areas of fused dry toner powder adhered to the second surface of the retroreflective layer, the fused dry toner powder comprising a colorant and a binder, the binder comprising a first adhesive that is non-tacky at about 25° C.; and (f) a second adhesive layer adhered to the fused dry toner powder and second surface of the retroreflective layer, the second adhesive layer being transparent and tacky at 25° C.
Claim 12
Dependent Claim
72 words
Article in accordance with claim 9 wherein the first surface of the retroreflective layer is defined by a plurality of concavities, a first portion of the concavities filled with and adhered to the second major surface of the plastic film layer, a second portion of the concavities not filled with or adhered to the second major surface of the plastic film layer, the second surface of the retroreflective layer being substantially smooth.
Claim 13
Dependent Claim
18 words
Article in accordance with claim 10 wherein the concavities of the retroreflective layer are defined by cube-corner elements.
Claim 14
Dependent Claim
34 words
Article in accordance with claim 10 wherein the retroreflective layer comprises a laminate of polymethylmethacrylate sheeting and polycarbonate layer, the polymethylmethacrylate sheeting forming the smooth surface, the polycarbonate layer forming the plurality of concavities.
Claim 15
Dependent Claim
24 words
Article in accordance with claim 9 wherein said retroreflective layer is selected from the group consisting of enclosed-lens retroreflective sheeting and encapsulated-lens retroreflective sheeting.
Claim 16
Dependent Claim
16 words
Article in accordance with claim 9 wherein the first adhesive layer further comprises the second adhesive.
Claim 17
Dependent Claim
40 words
Article in accordance with claim 14 wherein the first and second adhesive layers comprise a tacky copolymer of a major portion of isooctyl acrylate and a minor portion of acrylic acid, and wherein the first adhesive is a non-tacky acrylate.
Claim 18
Dependent Claim
26 words
Article in accordance with claim 15 wherein the tacky copolymer comprises about 95.5 weight percent of isooctyl acrylate and about 4.5 weight percent of acrylic acid.
Claim 19
Dependent Claim
48 words
Article in accordance with claim 15 wherein the article further comprises a transparent protective layer adhered by the second adhesive layer to the fused dry toner powder and the second surface of the retroreflective layer wherein the transparent protective layer comprises a copolymer of ethylene and acrylic acid.
Claim 20
Dependent Claim
34 words
The signage article of claim 9, wherein said article further comprises a transparent protective layer adhered to the fused dry toner powder and second surface of the retroreflective layer by said second adhesive layer.
References Cited (Backward Citations)
US2407680A
Cited
US2684301A
Cited
USRE24906E
Cited
US3190178A
Cited
US3684348A
Cited
US3857731A
Cited
US4025159A
Cited
US4311723A
Cited
GB2126389A
Cited
US4644966A
Cited
JPS60115958A
Cited
DE3515191A1
Cited
US4714656A
Cited
US5064272A
Cited
US4767659A
Cited
US4840863A
Cited
US4966829A
Cited
US4938563A
Cited
US4758952A
Cited
US4844976A
Cited
EP0309588A1
Cited
DE3714288A1
Cited
US4896943B1
Cited
US4896943A
Cited
US5066098A
Cited
US4801193A
Cited
US4895428A
Cited
US4959265A
Cited
EP0424131A1
Cited
US5085918A
Cited
EP0457544A1
Cited
US5286544A
Cited
EP0501403A2
Cited
US5266432A
Cited
US5294490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-03-09 | 2001-09-08 | 2002-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-03-09 | 2005-09-08 | 2006-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-03-09 | 2009-09-08 | 2010-03-10 | $7700.00 | Window Closed / Lapsed |