US4074000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure sensitive adhesive drafting films for use in electrostatographic copiers
Assignee: Xerox Corp
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Filing: 1976-10-27
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Granted: 1978-02-14
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Expires: 1996-10-27
Abstract
Abstract Disclosed is a novel pressure sensitive adhesive drafting film which is specially formulated to permit it to be imaged in electrostatographic copiers. The film is a multilayered structure comprising layers from the top down of: (a) a matte coating capable of receiving and holding graphic information; (b) a layer of organic resinous material in film form; (c) a layer of pressure sensitive adhesive; (d) a release coating; (e) a layer of an organic resinous material in film form as release liner; and (f) a back coating which is a layer of an organic resinous binder material having dispersed therein: I. a particulate solid material of particle size ranging from 3 to 20 microns in the longest dimension, and Ii. a water insoluble antistatic agent of a type to cause the film to have a surface resistivity in the range of from 10 9 to 10 14 ohms/sq.
Inventors
- 👤 Roy H. Hankee
- 👤 Alp T. Akman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:47
CPC Classifications
G; G03; G03F; G03F1/00; G03F1/90; C; C09; C09J; C09J7/00; C09J7/20; C09J7/22; G03G; G03G7/00; G03G7/0006; G03G7/0013; G03G7/002; G03G7/0026; G03G7/0033; G03G7/0053; G03G7/0086; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10S428/922; Y10T; Y10T428/00; Y10T428/25; Y10T428/252; Y10T428/253; Y10T428/256; Y10T428/259; Y10T428/26; Y10T428/28; Y10T428/2839; Y10T428/29; Y10T428/2913; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T428/31667; Y10T428/31786; Y10T428/3179; Y10T428/31855; Y10T428/3188
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
134 words
A layered, pressure sensitive, self-adhesive drafting film suitable for imaging in electrostatographic copiers which comprises from the top downward: a. a matte coating capable of receiving a holding graphic information; b. a layer of an organic resinous material as support for the matte coating; c. a pressure sensitive adhesive; d. a silicone release coating; e. a layer of an organic resinous material as release liner; and f. a back coating which is a layer of an organic binder material having dispersed therein: i. a particulate material of particle size ranging from 3 to 20 microns in the longest dimension; and ii. a water insoluble antistatic agent of a type and in an amount sufficient to cause the film to have a surface resistivity in the range of from 10 9 to 10 14 ohms/sq.
Claim 2
Dependent Claim
134 words
A layered, pressure sensitive, self-adhesive drafting film suitable for imaging in electrostatographic copiers which comprises from the top downward: a. a matte coating capable of receiving a holding graphic information; b. a layer of an organic resinous material as support for the matte coating; c. a pressure sensitive adhesive; d. a silicone release coating; e. a layer of an organic resinous material as release liner; and f. a back coating which is a layer of an organic binder material having dispersed therein: i. a particulate material of particle size ranging from 3 to 20 microns in the longest dimension; and ii. a water insoluble antistatic agent of a type and in an amount sufficient to cause the film to have a surface resistivity in the range of from 10 9 to 10 14 ohms/sq.
Claim 3
Dependent Claim
15 words
The film of claim 1 wherein the pressure sensitive adhesive is an acrylic type adhesive.
Claim 4
Dependent Claim
13 words
The film of claim 1 wherein the release liner is a silicone resin.
Claim 5
Dependent Claim
20 words
The film of claim 1 wherein the back coating contains from 0.5 to 15 weight percent of the particulate material.
Claim 6
Dependent Claim
16 words
The film of claim 1 wherein the surface resistivity is 10 10 to 10 12 ohms/sq.
Claim 7
Dependent Claim
12 words
The film of claim 1 wherein the support layer is a polyester.
Claim 8
Dependent Claim
21 words
The film of claim 6 wherein the polyester is a polyester formed by the polyesterification of terephthalic acid and ethylene glycol.
Claim 9
Dependent Claim
25 words
The film of claim 1 wherein the matte coating is a resinous organic material having particulate glass, amorphous or diatomaceous silica or titanium dispersed therein.
Claim 10
Dependent Claim
17 words
The film of claim 8 wherein the resinous portion of the matte coating is a cellulosic material.
Claim 11
Dependent Claim
11 words
The film of claim 1 wherein the release liner is opaque.
Claim 12
Dependent Claim
26 words
The film of claim 10 wherein the release liner is comprised of Mylar having polypropylene impurities or mineral fibers dispersed therein to provide an opaque appearance.
Claim 13
Dependent Claim
15 words
The film of claim 1 wherein the anti-static agent is an organic or inorganic salt.
Claim 14
Dependent Claim
21 words
The film of claim 12 wherein the anti-static agent is an alkyl quaternary ammonium chloride or a dialkyl quaternary ammonium chloride.
Claim 15
Dependent Claim
123 words
A multi-layered pressure sensitive drafting film suitable for imaging in electrostatographic copiers which comprises from the top down: a. a matte film capable of receiving and holding graphic information; b. a layer of organic resinous material; c. a layer of pressure sensitive adhesive; d. a release coating; e. a layer of an organic resinous material as release liner; f. a back coating comprising an organic binder material having dispersed therein a particulate material of particle size ranging from 3 to 20 microns in the longest dimension; and g. a thin (0.01 mil to 0.06 mil) layer of an anti-static agent of a type which causes the film to have a surface resistivity in the range of from 10 9 to 10 14 ohms/sq.
Claim 16
Dependent Claim
123 words
A multi-layered pressure sensitive drafting film suitable for imaging in electrostatographic copiers which comprises from the top down: a. a matte film capable of receiving and holding graphic information; b. a layer of organic resinous material; c. a layer of pressure sensitive adhesive; d. a release coating; e. a layer of an organic resinous material as release liner; f. a back coating comprising an organic binder material having dispersed therein a particulate material of particle size ranging from 3 to 20 microns in the longest dimension; and g. a thin (0.01 mil to 0.06 mil) layer of an anti-static agent of a type which causes the film to have a surface resistivity in the range of from 10 9 to 10 14 ohms/sq.
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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) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |