US4865914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparency and paper coatings
Assignee: Xerox Corp
•
Filing: 1987-03-20
•
Granted: 1989-09-12
•
Expires: 2007-03-20
Abstract
Abstract A transparency comprised of a supporting substrate and thereover a blend comprised of poly(ethylene oxide), and carboxy methyl cellulose together with a component selected from the group consisting of (1) hydroxypropyl cellulose; (2) vinylmethyl ether/maleic acid copolymer; (3) carboxymethyl hydroxyethyl cellulose; (4) hydroxyethyl celluose; (5) acrylamide/acrylic acid copolymer; (6) cellulose sulfate; (7) poly(2-acrylamido-2-methyl propane sulfonic acid); (8) poly(vinyl alcohol); (9) poly(vinyl pyrrolidone); and (10) hydroxypropyl methyl cellulose. In addition, papers with the aforementioned coatings are disclosed herein.
Inventors
- 👤 Shadi L. Malhotra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:10
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/52; D21H19/56; D21H19/58; D21H19/60; D21H19/62; B41M5/502; B41M5/508; B41M5/5218; B41M5/5236; B41M5/5254; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/31504; Y10T428/31786; Y10T428/3179; Y10T428/31797; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31888; Y10T428/31909; Y10T428/31913; Y10T428/31917; Y10T428/3192; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31986; Y10T428/31993
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
67 words
A transparency comprised of a supporting substrate and thereover a blend consisting essentially of poly(ethylene oxide), and carboxymethyl cellulose together with a component selected from the group consisting of (1) hydroxypropyl cellulose; (2) vinylmethyl ether/maleic acid copolymer; (3) carboxymethyl hydroxyethyl cellulose; (4) hydroxyethyl cellulose; (5) acrylamide/acrylic acid copolymer; (6) cellulose sulfate; (7) poly(2-acrylamido-2-methyl propane sulfonic acid); (8) poly(vinyl alcohol); (9) poly(vinyl pyrrolidone); and (10) hydroxypropyl methyl cellulose.
Claim 2
Dependent Claim
67 words
A transparency comprised of a supporting substrate and thereover a blend consisting essentially of poly(ethylene oxide), and carboxymethyl cellulose together with a component selected from the group consisting of (1) hydroxypropyl cellulose; (2) vinylmethyl ether/maleic acid copolymer; (3) carboxymethyl hydroxyethyl cellulose; (4) hydroxyethyl cellulose; (5) acrylamide/acrylic acid copolymer; (6) cellulose sulfate; (7) poly(2-acrylamido-2-methyl propane sulfonic acid); (8) poly(vinyl alcohol); (9) poly(vinyl pyrrolidone); and (10) hydroxypropyl methyl cellulose.
Claim 3
Dependent Claim
38 words
A transparency in accordance with claim 1 wherein the coating consists essentially of about 60 percent by weight of carboxymethyl cellulose, about 35 percent by weight of polyethylene oxide, and about 5 percent by weight of hydroxypropyl cellulose.
Claim 4
Dependent Claim
51 words
A transparency in accordance with claim 1 wherein the coating blend consists essentially of from about 5 to about 20 percent by weight of hydroxypropyl cellulose, from about 30 to about 70 percent by weight of carboxymethyl cellulose, and from about 25 to about 60 percent by weight of poly(ethylene oxide).
Claim 5
Dependent Claim
51 words
A transparency in accordance with claim 1 wherein the coating blend consists essentially of from about 5 to about 40 percent by weight of hydroxyethyl cellulose, from about 20 to about 70 percent by weight of carboxymethyl cellulose, and from about 25 to about 60 percent by weight of poly(ethylene oxide).
Claim 6
Dependent Claim
53 words
A transparency in accordance with claim 1 wherein the coating blend consists essentially of from about 5 to about 50 percent by weight of carboxymethyl cellulose, from about 10 to about 50 percent by weight of vinylmethyl ether/maleic acid copolymer, and from about 20 to about 70 percent by weight of poly(ethylene oxide).
Claim 7
Dependent Claim
52 words
A transparency in accordance with claim 1 wherein the coating blend consists essentially of from about 5 to about 50 percent by weight of carboxymethyl cellulose, from about 10 to about 50 percent by weight of acrylamide/acrylic acid copolymer, and from about 20 to about 70 percent by weight of poly(ethylene oxide).
Claim 8
Dependent Claim
51 words
A transparency in accordance with claim 1 wherein the coating blend consists essentially of from about 5 to about 50 percent by weight of carboxymethyl cellulose, from about 10 to about 50 percent by weight of cellulose sulfate, and from about 20 to about 70 percent by weight of poly(ethylene oxide).
Claim 9
Dependent Claim
53 words
A transparency in accordance with claim 1 wherein the coating blend consists essentially of from about 5 to about 50 percent by weight of carboxymethyl cellulose, from about 10 to about 50 percent by weight of poly(2-acrylamido-2-methyl propane sulfonic acid), and from about 20 to about 70 percent by weight of poly(ethylene oxide).
Claim 10
Dependent Claim
51 words
A transparency in accordance with claim 1 wherein the coating blend consists essentially of from about 2 to about 20 percent by weight of poly(vinyl pyrrolidone), from about 10 to about 75 percent by weight of carboxymethyl cellulose, and from about 20 to about 70 percent by weight of poly(ethylene oxide).
Claim 11
Dependent Claim
51 words
A transparency in accordance with claim 1 wherein the coating blend consists essentially of from about 5 to about 20 percent by weight of poly(vinyl alcohol), from about 10 to about 50 percent by weight of carboxymethyl cellulose, and from about 20 to about 60 percent by weight of poly(ethylene oxide).
Claim 12
Dependent Claim
49 words
A transparency in accordance with claim 1 wherein the coating blend consists essentially of from about 5 to about 50 percent by weight of carboxymethyl hydroxyethyl cellulose, from about 10 to about 50 percent carboxymethyl cellulose, and from about 20 to about 50 percent by weight of poly(ethylene oxide).
Claim 13
Dependent Claim
52 words
A transparency in accordance with claim 1 wherein the coating blend consists essentially of from about 5 to about 50 percent by weight of hydroxypropyl methyl cellulose, from about 10 to about 50 percent by weight of carboxymethyl cellulose, and from about 20 to about 50 percent by weight of poly(ethylene oxide).
Claim 14
Dependent Claim
28 words
A transparency in accordance with claim 1 wherein the supporting substrate is selected from the group consisting of poly(ethylene terephthalate), cellulose acetate, cellophane, polysulfone, polyvinyl chloride, and polypropylene.
Claim 15
Dependent Claim
14 words
A transparency in accordance with claim 1 wherein the supporting substrate is poly(ethylene terephthalate).
Claim 16
Dependent Claim
27 words
A transparency in accordance with claim 1 wherein the supporting substrate is coated from the polymer blend dissolved in a mixture of water and an aliphatic alcohol.
Claim 17
Dependent Claim
60 words
A transparency in accordance with claim 1 wherein the coating blend consists essentially of from about 5 percent by weight to about 20 percent by weight of hydroxypropyl cellulose, from about 30 percent by weight to about 70 percent by weight of carboxymethyl cellulose, and from about 25 percent by weight to about 60 percent by weight of polyethylene oxide.
Claim 18
Dependent Claim
76 words
An ink jet paper comprised of a supporting substrate and thereover a blend consisting essentially of poly(ethylene oxide), and carboxymethyl cellulose together with a component selected from the group consisting of (1) hydroxypropyl cellulose; (2) vinylmethyl ether/maleic acid copolymer; (3) carboxymethyl hydroxyethyl cellulose; (4) hydroxyethyl cellulose; (5) acrylamide/acrylic acid copolymer; (6) cellulose sulfate; (7) poly(2-acrylamido-2-methyl propane sulfonic acid); (8) poly(vinyl alcohol); (9) poly(vinyl pyrrolidone); and (10) hydroxypropyl methyl cellulose; and dispersed in the blend colloidal silica.
Claim 19
Dependent Claim
76 words
An ink jet paper comprised of a supporting substrate and thereover a blend consisting essentially of poly(ethylene oxide), and carboxymethyl cellulose together with a component selected from the group consisting of (1) hydroxypropyl cellulose; (2) vinylmethyl ether/maleic acid copolymer; (3) carboxymethyl hydroxyethyl cellulose; (4) hydroxyethyl cellulose; (5) acrylamide/acrylic acid copolymer; (6) cellulose sulfate; (7) poly(2-acrylamido-2-methyl propane sulfonic acid); (8) poly(vinyl alcohol); (9) poly(vinyl pyrrolidone); and (10) hydroxypropyl methyl cellulose; and dispersed in the blend colloidal silica.
Claim 20
Dependent Claim
29 words
An ink jet paper in accordance with claim 17 wherein the supporting substrate is selected from the group consisting of titanium dioxide coated plastics, sized papers, and filled papers.
Claim 21
Dependent Claim
83 words
An ink jet paper in accordance with claim 17 wherein the coating blend consists essentially of from about 40 to about 60 percent by weight of polymer blend comprised of from about 40 to about 80 percent by weight of poly(ethylene oxide), about 10 to about 50 percent by weight of carboxypropyl cellulose; and about 2 to about 20 percent by weight of hydroxypropyl cellulose; and dispersed in the coating blend from about 60 to about 40 percent by weight of colloidal silica.
Claim 22
Dependent Claim
26 words
An ink jet paper in accordance with claim 16 wherein the coating blend is present in a thickness of from about 5 to about 25 microns.
Claim 23
Dependent Claim
26 words
An ink jet paper in accordance with claim 17 wherein the coating blend is present in a thickness of from about 5 to about 25 microns.
Claim 24
Dependent Claim
67 words
An ink jet transparency comprising a supporting substrate and a coating consisting essentially of a blend of poly(ethylene oxide), carboxymethyl cellulose, and a component selected from the group consisting of (1) hydroxypropyl cellulose; (2) vinylmethyl ether/maleic acid copolymer; (3) carbolymethyl hydroxyethyl cellulose; (4) hydroxyethyl cellulose; (5) acrylamide/acrylic acid copolymer; (6) cellulose sulfate; (7) poly(2-acrylamido-2-methyl propane sulfonic acid); (8) poly(vinyl alcohol); (9) poly(vinyl pyrrolidone); and (10) hydroxypropylmethyl cellulose.
Claim 25
Dependent Claim
67 words
An ink jet transparency comprising a supporting substrate and a coating consisting essentially of a blend of poly(ethylene oxide), carboxymethyl cellulose, and a component selected from the group consisting of (1) hydroxypropyl cellulose; (2) vinylmethyl ether/maleic acid copolymer; (3) carbolymethyl hydroxyethyl cellulose; (4) hydroxyethyl cellulose; (5) acrylamide/acrylic acid copolymer; (6) cellulose sulfate; (7) poly(2-acrylamido-2-methyl propane sulfonic acid); (8) poly(vinyl alcohol); (9) poly(vinyl pyrrolidone); and (10) hydroxypropylmethyl cellulose.
Claim 26
Dependent Claim
36 words
An ink jet transparency in accordance with claim 22 wherein the coating consists essentially of a blend of poly(ethylene oxide), carboxymethyl cellulose, and a component selected from the group consisting of hydroxypropyl cellulose and hydroxypropylmethyl cellulose.
Claim 27
Dependent Claim
25 words
An ink jet transparency in accordance with claim 22 wherein the coating consists essentially of a blend of poly(ethylene oxide), carboxymethyl cellulose, and hydroxypropyl cellulose.
Claim 28
Dependent Claim
25 words
An ink jet transparency in accordance with claim 22 wherein in coating consists essentially of a blend of poly(ethylene oxide), carboxymethyl cellulose, and hydroxypropylmethyl cellulose.
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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) | 1992-09-11 | 1993-03-13 | 1993-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-11 | 1997-03-13 | 1997-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-11 | 2001-03-13 | 2001-09-12 | $7700.00 | Window Closed / Lapsed |