US5271990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image-receptive heat transfer paper
Assignee: HAWK J RICHARD AGENT FOR CERTAIN LENDERS
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Filing: 1991-10-23
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Granted: 1993-12-21
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Expires: 2011-10-23
Abstract
Abstract An image-receptive heat transfer paper which includes: (a) a flexible cellulosic nonwoven web base sheet having top and bottom surfaces; and (b) an image-receptive melt-transfer film layer overlaying the top surface of the base sheet, which image-receptive melt-transfer film layer is composed of a thermoplastic polymer which melts in the range of from about 65 to about 180 degrees Celsius. Alternatively, the image-receptive melt-transfer film layer is replaced with a melt-transfer film layer overlaying the top surface of the nonwoven web and composed of a first thermoplastic polymer which melts in the range of from about 65 to about 180 degrees Celsius, and an image-receptive film layer overlaying the melt-transfer film layer and composed of a second thermoplastic polymer which melts in the range of from about 65 to about 180 degrees Celsius. The exposed surface of the image-receiving film layer has a smoothness value, independent of the smoothness of the base sheet, of at least about 10 cc/minute as measured by a Sheffield Smoothness Tester.
Inventors
- 👤 Frances J. Kronzer
- 👤 Edward A. Parkkila, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:11
CPC Classifications
B; B44; B44C; B44C1/00; B44C1/16; B44C1/165; B44C1/17; B44C1/1712; B41; B41M; B41M5/00; B41M5/26; B41M5/40; B41M5/41; B41M5/50; B41M5/52; B41M5/5254; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/25; Y10T428/254; Y10T428/31504; Y10T428/31786; Y10T428/3179
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
109 words
An image-receptive heat transfer paper which comprises: (a) a flexible cellulosic nonwoven web base sheet having top and bottom surfaces; and (b) an image-receptive melt-transfer film layer overlaying the top surface of said base sheet, which image-receptive melt-transfer film layer is comprised of a thermoplastic polymer selected from the group consisting of polyolefins, polyesters, and ethylene-vinyl acetate copolymers and which melts in the range of from about 65 to about 180 degrees Celsius, in which the exposed surface of said image-receptive melt-transfer film layer has a smoothness value, independent of the smoothness of the base sheet, of at least about 10 cc/minute as measured by a Sheffield Smoothness Tester.
Claim 2
Dependent Claim
109 words
An image-receptive heat transfer paper which comprises: (a) a flexible cellulosic nonwoven web base sheet having top and bottom surfaces; and (b) an image-receptive melt-transfer film layer overlaying the top surface of said base sheet, which image-receptive melt-transfer film layer is comprised of a thermoplastic polymer selected from the group consisting of polyolefins, polyesters, and ethylene-vinyl acetate copolymers and which melts in the range of from about 65 to about 180 degrees Celsius, in which the exposed surface of said image-receptive melt-transfer film layer has a smoothness value, independent of the smoothness of the base sheet, of at least about 10 cc/minute as measured by a Sheffield Smoothness Tester.
Claim 3
Dependent Claim
27 words
The image-receptive heat transfer paper of claim 1, in which the thickness of said image receptive melt-transfer film layer is from about 12 to about 80 micrometers.
Claim 4
Dependent Claim
26 words
The image-receptive heat transfer paper of claim 1, in which said thermoplastic polymer is selected from the group consisting of polyolefins, polyesters, and ethylene-vinyl acetate copolymers.
Claim 5
Dependent Claim
18 words
The image-receptive heat transfer paper of claim 1, in which said thermoplastic polymer is an ethylene-vinyl acetate copolymer.
Claim 6
Dependent Claim
26 words
The image-receptive heat transfer paper of claim 1, in which said thermoplastic polymer melts in the range of from about 80 to about 120 degrees Celsius.
Claim 7
Dependent Claim
25 words
The image-receptive heat transfer paper of claim 1, in which said smoothness value is in the range of from about 10 to about 400 cc/minute.
Claim 8
Dependent Claim
164 words
An image-receptive heat transfer paper which comprises: (a) a flexible cellulosic nonwoven web base sheet having top and bottom surfaces; (b) a melt-extruded, melt-transfer film layer overlaying the top surface of said base sheet, which melt transfer film layer is comprised of a first thermoplastic polymer selected from the group consisting of polyolefins, polyesters, ethylene-vinyl acetate copolymers, ethylene-methacrylic acid copolymers, and ethylene-acrylic acid copolymers and which melts in the range of from about 65 to about 180 degrees Celsius; and (c) a melt-extruded, image-receptive film layer overlaying said melt-transfer film layer, which image-receptive film layer is comprised of a second thermoplastic polymer selected from the group consisting of polyolefins, polyesters, and ethylene-vinyl acetate copolymers and which melts in the range of from about 65 to about 180 degrees Celsius, in which the exposed surface of said image-receptive film layer has a smoothness value, independent of the smoothness of the base sheet, of at least about 10 cc/minute as measured by a Sheffield Smoothness Tester.
Claim 9
Dependent Claim
164 words
An image-receptive heat transfer paper which comprises: (a) a flexible cellulosic nonwoven web base sheet having top and bottom surfaces; (b) a melt-extruded, melt-transfer film layer overlaying the top surface of said base sheet, which melt transfer film layer is comprised of a first thermoplastic polymer selected from the group consisting of polyolefins, polyesters, ethylene-vinyl acetate copolymers, ethylene-methacrylic acid copolymers, and ethylene-acrylic acid copolymers and which melts in the range of from about 65 to about 180 degrees Celsius; and (c) a melt-extruded, image-receptive film layer overlaying said melt-transfer film layer, which image-receptive film layer is comprised of a second thermoplastic polymer selected from the group consisting of polyolefins, polyesters, and ethylene-vinyl acetate copolymers and which melts in the range of from about 65 to about 180 degrees Celsius, in which the exposed surface of said image-receptive film layer has a smoothness value, independent of the smoothness of the base sheet, of at least about 10 cc/minute as measured by a Sheffield Smoothness Tester.
Claim 10
Dependent Claim
17 words
The image-receptive heat transfer paper of claim 7, in which said base sheet is a latex-impregnated paper.
Claim 11
Dependent Claim
31 words
The image-receptive heat transfer paper of claim 7, in which the total thickness of said melt-transfer film layer and said image-receptive film layer is from about 12 to about 80 micrometers.
Claim 12
Dependent Claim
28 words
The image-receptive heat transfer paper of claim 7, in which said first thermoplastic polymer is selected from the group consisting of ethylene-methacrylic acid copolymers and ethylene-acrylic acid copolymers.
Claim 13
Dependent Claim
38 words
The image-receptive heat transfer paper of claim 7, in which said first thermoplastic polymer is selected from the group consisting of ethylene-methacrylic acid copolymers and ethylene-acrylic acid copolymers and said second thermoplastic polymer is an ethylene-vinyl acetate copolymer.
Claim 14
Dependent Claim
27 words
The image-receptive heat transfer paper of claim 7, in which said first thermoplastic polymer melts in the range of from about 80 to about 120 degrees Celsius.
Claim 15
Dependent Claim
27 words
The image-receptive heat transfer paper of claim 7, in which said second thermoplastic polymer melts in the range of from about 80 to about 120 degrees Celsius.
Claim 16
Dependent Claim
25 words
The image-receptive heat transfer paper of claim 7, in which said smoothness value is in the range of from about 10 to about 400 cc/minute.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1996-12-20 | 1997-06-21 | 1997-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-12-20 | 2001-06-21 | 2001-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-12-20 | 2005-06-21 | 2005-12-21 | $7700.00 | Window Closed / Lapsed |