US5156709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fusible white stripe transparency sheets
Assignee: Xerox Corp
•
Filing: 1991-07-30
•
Granted: 1992-10-20
•
Expires: 2011-07-30
Abstract
Abstract A coating composition composed of a polymer pigment combined with an emulsion or latex binder forms a white stripe when coated on a transparency. The white stripe becomes transparent upon fusing.
Inventors
- 👤 Joseph Mammino
- 👤 John G. Van Dusen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:22
CPC Classifications
B; B41; B41M; B41M7/00; B41M7/0027; B41M5/00; B41M5/26; B41M5/36; B41M5/366; G; G03; G03G; G03G7/00; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/25; Y10T428/254
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
35 words
A transparency sheet comprising a transparent substrate bearing an optically detectible stripe which becomes transparent upon application to said transparency sheet of at least one member selected from the group consisting of heat and pressure.
Claim 2
Dependent Claim
35 words
A transparency sheet comprising a transparent substrate bearing an optically detectible stripe which becomes transparent upon application to said transparency sheet of at least one member selected from the group consisting of heat and pressure.
Claim 3
Dependent Claim
23 words
The transparency sheet of claim 1, wherein said optically detectable stripe is formed from a composition of polymer pigment particles and a binder.
Claim 4
Dependent Claim
79 words
The transparency sheet of claim 1, wherein said binder is selected from the group consisting of vinyl acetate homopolymers, vinyl acetate acrylate polymers, polystyrene, styrene-acrylonitrile or styrene-acrylate copolymers, styrene-butadiene-acrylonitrile terpolymers, polyvinylchloride, vinyl chloride-vinyl acetate copolymers, vinylidene-chloride-acrylonitrile or vinylidene chloride-vinyl-acetate copolymers, polyvinylidene chloride, polyacrylates, polyvinyltoluene, epoxy resins, polyurethane, polyester alkyd emulsions, polyvinylpyrrolidone, polyvinyl ethers and maleic anhydride copolymers, polyvinyl pyridines, polyvinyl alcohol, water or alcohol soluble cellulose polymers, polyacrylic acid, polyvinyl acetate crotonic acid copolymers, and polyvinyl chloride-polyvinylidene chloride copolymers.
Claim 5
Dependent Claim
20 words
The transparency sheet of claim 2, wherein said polymer pigment particles and said binder have substantially the same refractive index.
Claim 6
Dependent Claim
13 words
The transparency sheet of claim 2, wherein said polymer pigment particles are colorless.
Claim 7
Dependent Claim
23 words
The transparency sheet of claim 1, wherein the opacity value of said transparency sheet after application of said member is less than 15%.
Claim 8
Independent Claim
76 words
A method of forming an image on a transparency sheet, comprising: feeding a transparency sheet containing an optically detectible pattern through a printing machine using optical detection of said pattern; forming an image on said transparency sheet in said printing machine; and applying at least one member selected from the group consisting of heat and pressure to said transparency sheet in said printing machine; thereby binding said image to said sheet and making said pattern transparent.
Claim 9
Independent Claim
76 words
A method of forming an image on a transparency sheet, comprising: feeding a transparency sheet containing an optically detectible pattern through a printing machine using optical detection of said pattern; forming an image on said transparency sheet in said printing machine; and applying at least one member selected from the group consisting of heat and pressure to said transparency sheet in said printing machine; thereby binding said image to said sheet and making said pattern transparent.
Claim 10
Dependent Claim
44 words
The method of claim 7, wherein the step of binding said image to said sheet and making said pattern transparent is accomplished by the same application of at least one member selected from the group consisting of heat and pressure to said transparency sheet.
Claim 11
Dependent Claim
16 words
The method of claim 7, wherein said pattern is formed in the shape of a stripe.
Claim 12
Dependent Claim
29 words
The method of claim 9, wherein said stripe becomes transparent upon the dissolution, fusion or leveling of polymer pigment particles dispersed in a binder that together comprise the stripe.
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) | 1995-10-20 | 1996-04-20 | 1996-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-20 | 2000-04-20 | 2000-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-20 | 2004-04-20 | 2004-10-20 | $7700.00 | Window Closed / Lapsed |