US4701367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coatings for typewriter transparencies
Assignee: Xerox Corp
•
Filing: 1986-02-27
•
Granted: 1987-10-20
•
Expires: 2006-02-27
Abstract
Abstract A typewriter transparency with a supporting substrate and thereover a coating blend selected from the group consisting of (1) poly(vinyl methyl ether), and poly(styrene); (2) poly(vinyl methyl ether), poly(styrene) and poly(ethyl acrylate); (3) a styrene-ethylene-butylene-styrene-triblock copolymer; (4) poly(vinyl acetate), and poly(vinyl isobutylether); (5) a styrene-butadiene-styrene triblock copolymer; (6) poly(vinyl methyl ether), poly(vinyl acetate), and poly(ethylacrylate); (7) poly(hexyl methacrylate) and poly(ethyl methacrylate), and other coatings.
Inventors
- 👤 Shadi L. Malhotra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:38
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; B41M5/5254; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975; Y10T428/31504; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31891; Y10T428/31909; Y10T428/31913; Y10T428/3192; Y10T428/31924; Y10T428/31928
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
68 words
A typewriter transparency comprised of a supporting substrate and thereover a coating blend selected from the group consisting of (1) poly(vinyl methyl ether), and poly(styrene); (2) poly(vinyl methyl ether), poly(styrene), and poly(ethyl acrylate); (3) styrene-ethylene-butylene-triblock copolymer, and styrene-butadiene-styrene triblock copolymer; (4) poly(vinyl acetate), and poly(vinyl isobutylether); (5) poly(vinyl methyl ether), poly(vinyl acetate), and poly(ethyl acrylate); (6) poly(hexyl methacrylate), and poly(ethyl acrylate); and (7) poly(cyclohexyl methacrylate), and poly(vinyl acetate).
Claim 2
Dependent Claim
68 words
A typewriter transparency comprised of a supporting substrate and thereover a coating blend selected from the group consisting of (1) poly(vinyl methyl ether), and poly(styrene); (2) poly(vinyl methyl ether), poly(styrene), and poly(ethyl acrylate); (3) styrene-ethylene-butylene-triblock copolymer, and styrene-butadiene-styrene triblock copolymer; (4) poly(vinyl acetate), and poly(vinyl isobutylether); (5) poly(vinyl methyl ether), poly(vinyl acetate), and poly(ethyl acrylate); (6) poly(hexyl methacrylate), and poly(ethyl acrylate); and (7) poly(cyclohexyl methacrylate), and poly(vinyl acetate).
Claim 3
Dependent Claim
25 words
A transparency in accordance with claim 1 wherein the supporting substrate is poly(ethylene terephthalate) in a thickness of from about 50 to about 100 microns.
Claim 4
Dependent Claim
12 words
A transparency in accordance with claim 1 wherein the substrate is cellophane.
Claim 5
Dependent Claim
15 words
A transparency in accordance with claim 1 wherein the substrate is a cellulose triacetate sheet.
Claim 6
Dependent Claim
13 words
A transparency in accordance with claim 1 wherein the substrate is poly(vinyl chloride).
Claim 7
Dependent Claim
43 words
A typewriter transparency for single strike ribbons in accordance with claim 1 wherein the blend is comprised of from about 50 to about 70 percent by weight of poly(vinyl methyl ether), and from about 30 to about 50 percent by weight of poly(styrene).
Claim 8
Dependent Claim
55 words
A typewriter transparency for single strike ribbons in accordance with claim 1 wherein the blend is comprised of from about 20 to about 30 percent by weight of poly(vinyl methyl ether), from about 30 to about 40 percent by weight of poly(ethyl acrylate), and from about 30 to about 50 percent by weight of poly(styrene).
Claim 9
Dependent Claim
58 words
A typewriter transparency for single strike, or multistrike ribbons in accordance with claim 1 wherein the blend is comprised of from about 30 to about 40 percent by weight of poly(vinyl methyl ether), from about 20 to about 40 percent by weight of poly(ethyl acrylate), and from about 30 to about 40 percent by weight of poly(vinyl acetate).
Claim 10
Dependent Claim
43 words
A typewriter transparency for single strike ribbons in accordance with claim 1 wherein the blend is comprised of from about 50 to about 70 percent by weight of poly(vinyl isobutyl ether) and from about 30 to about 50 percent by weight of poly(styrene).
Claim 11
Dependent Claim
47 words
A typewriter transparency for multistrike ribbons in accordance with claim 1 wherein the blend is 50 percent by weight of styrene-ethylene-butylene-styrene triblock copolymer with 29 percent by weight of styrene, and 50 percent by weight of a styrene-butadiene-styrene triblock copolymer with 38 percent by weight of styrene.
Claim 12
Dependent Claim
23 words
A transparency in accordance with claim 1 wherein the thickness of the resulting polymer blend is from about 3 to about 7 microns.
Claim 13
Dependent Claim
132 words
A typewriter transparency for single strike ribbons, which transparency is comprised of a supporting substrate, and thereover a coating blend selected from the group consisting of (1) from about 50 to about 70 percent by weight of poly(vinyl isobutyl ether), and from about 30 to about 50 percent by weight of poly(methylmethacrylate); (2) from about 50 to about 70 percent by weight of poly(vinyl acetate), and from about 30 to about 50 percent by weight of poly(cyclohexyl methacrylate); (3) from about 50 to about 75 percent by weight of poly(ethyl acrylate), and from about 25 to about 50 percent by weight of poly(methyl methacrylate); and (4) from about 30 to about 50 percent by weight of poly(vinyl methyl ketone), and from about 50 to about 70 percent by weight of poly(ethyl acrylate).
Claim 14
Dependent Claim
132 words
A typewriter transparency for single strike ribbons, which transparency is comprised of a supporting substrate, and thereover a coating blend selected from the group consisting of (1) from about 50 to about 70 percent by weight of poly(vinyl isobutyl ether), and from about 30 to about 50 percent by weight of poly(methylmethacrylate); (2) from about 50 to about 70 percent by weight of poly(vinyl acetate), and from about 30 to about 50 percent by weight of poly(cyclohexyl methacrylate); (3) from about 50 to about 75 percent by weight of poly(ethyl acrylate), and from about 25 to about 50 percent by weight of poly(methyl methacrylate); and (4) from about 30 to about 50 percent by weight of poly(vinyl methyl ketone), and from about 50 to about 70 percent by weight of poly(ethyl acrylate).
Claim 15
Dependent Claim
23 words
A transparency in accordance with claim 12 wherein the thickness of the resulting polymer blend is from about 3 to about 7 microns.
References Cited (Backward Citations)
CA562975A
Cited
US3002858A
Cited
US3790435A
Cited
US4233354A
Cited
US4301195A
Cited
US4379804A
Cited
US4377611A
Cited
US4461793A
Cited
US4503111A
Cited
US4474850A
Cited
JPH107468A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-10-19 | 1991-04-20 | 1991-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-19 | 1995-04-20 | 1995-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-19 | 1999-04-20 | 1999-10-20 | $7700.00 | Window Closed / Lapsed |