US4738950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amino-modified silicone slipping layer for dye-donor element used in thermal dye transfer
Assignee: Royal Melbourne Institute of Technology
•
Filing: 1987-06-16
•
Granted: 1988-04-19
•
Expires: 2007-06-16
Abstract
Abstract A dye-donor element for thermal dye transfer comprising a support having on one side thereof a dye layer and on the other side a slipping layer comprising a lubricating material dispersed in a polymeric binder, the lubricating material comprising a linear or branched aminoalkyl-terminated poly(dialkyl, diaryl or alkylaryl siloxane) such as an aminopropyldimethyl-terminated polydimethylsiloxane or a T-structure polydimethylsiloxane with an aminoalkyl functionality at the branchpoint.
Inventors
- 👤 Noel R. Vanier
- 👤 Steven Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:31
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/40; B41M5/42; B41M5/44; B41M5/443; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10S430/00; Y10S430/146; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
53 words
In a dye-donor element for thermal dye transfer comprising a support having on one side thereof a dye layer and on the other side a slipping layer comprising a lubricating material dispersed in a polymeric binder, the improvement wherein said lubricating material comprises a linear or branched aminoalkyl-terminated poly(dialkyl, diaryl or alkylaryl siloxane).
Claim 2
Dependent Claim
53 words
In a dye-donor element for thermal dye transfer comprising a support having on one side thereof a dye layer and on the other side a slipping layer comprising a lubricating material dispersed in a polymeric binder, the improvement wherein said lubricating material comprises a linear or branched aminoalkyl-terminated poly(dialkyl, diaryl or alkylaryl siloxane).
Claim 3
Dependent Claim
40 words
The element of claim 1 wherein said polysiloxane is present in an amount of from about 0.0005 to about 0.05 g/m 2 , representing approximately 0.1 to 20% of the binder weight, and the polymeric binder is a thermoplastic binder.
Claim 4
Dependent Claim
13 words
The element of claim 2 wherein said thermoplastic binder is a styrene-acrylonitrile copolymer.
Claim 5
Dependent Claim
12 words
The element of claim 1 wherein said siloxane is an aminopropyldimethyl-terminated polydimethylsiloxane.
Claim 6
Dependent Claim
21 words
The element of claim 4 wherein said polysiloxane has the formula: ##STR10## wherein n is from about 10 to about 2000.
Claim 7
Dependent Claim
20 words
The element of claim 1 wherein said siloxane polymer is a T-structure polydimethylsiloxane with an aminoalkyl functionality at the branchpoint.
Claim 8
Dependent Claim
31 words
The element of claim 6 wherein said siloxane polymer has the formula: ##STR11## wherein m is from about 1 to about 10 and n is from about 10 to about 1000.
Claim 9
Dependent Claim
11 words
The element of claim 1 wherein said support comprises poly(ethylene terephthalate).
Claim 10
Dependent Claim
19 words
The element of claim 8 wherein said dye layer comprises sequential repeating areas of cyan, magenta and yellow dye.
Claim 11
Dependent Claim
76 words
In a process of forming a dye transfer image comprising (a) imagewise-heating a dye-donor element comprising a support having on one side thereof a dye layer and on the other side a slipping layer comprising a lubricating material dispersed in a polymeric binder, and (b) transferring a dye image to a dye-receiving element to form said dye transfer image, the improvement wherein said lubricating material comprises a linear or branched aminoalkyl-terminated poly(dialkyl, diaryl or alkylaryl siloxane).
Claim 12
Dependent Claim
76 words
In a process of forming a dye transfer image comprising (a) imagewise-heating a dye-donor element comprising a support having on one side thereof a dye layer and on the other side a slipping layer comprising a lubricating material dispersed in a polymeric binder, and (b) transferring a dye image to a dye-receiving element to form said dye transfer image, the improvement wherein said lubricating material comprises a linear or branched aminoalkyl-terminated poly(dialkyl, diaryl or alkylaryl siloxane).
Claim 13
Dependent Claim
40 words
The process of claim 10 wherein said polysiloxane is present in an amount of from about 0.0005 to about 0.05 g/m 2 , representing approximately 0.1 to 10% of the binder weight, and the polymeric binder is a thermoplastic binder.
Claim 14
Dependent Claim
12 words
The process of claim 10 wherein said siloxane is an aminopropyldimethyl-terminated polydimethylsiloxane.
Claim 15
Dependent Claim
20 words
The process of claim 10 wherein said siloxane polymer is a T-structure polydimethylsiloxane with an aminoalkyl functionality at the branchpoint.
Claim 16
Dependent Claim
41 words
The process of claim 10 wherein said support is poly(ethylene terephthalate) which is coated with sequential repeating areas of cyan, magenta and yellow dye, and said process steps are sequentially performed for each color to obtain a three-color dye transfer image.
Claim 17
Dependent Claim
95 words
In a thermal dye transfer assemblage comprising: (a) a dye-donor element comprising a support having on one side thereof a dye layer and on the other side a slipping layer comprising a lubricating material dispersed in a polymeric binder, and (b) a dye-receiving element comprising a support having thereon a dye image-receiving layer, said dye-receiving element being in a superposed relationship with said dye-donor element so that said dye layer is in contact with said dye image-receiving layer, the improvement wherein said lubricating material comprises a linear or branched aminoalkyl-terminated poly(dialkyl, diaryl or alkylaryl siloxane).
Claim 18
Dependent Claim
95 words
In a thermal dye transfer assemblage comprising: (a) a dye-donor element comprising a support having on one side thereof a dye layer and on the other side a slipping layer comprising a lubricating material dispersed in a polymeric binder, and (b) a dye-receiving element comprising a support having thereon a dye image-receiving layer, said dye-receiving element being in a superposed relationship with said dye-donor element so that said dye layer is in contact with said dye image-receiving layer, the improvement wherein said lubricating material comprises a linear or branched aminoalkyl-terminated poly(dialkyl, diaryl or alkylaryl siloxane).
Claim 19
Dependent Claim
40 words
The assemblage of claim 15 wherein said polysiloxane is present in an amount of from about 0.0005 to about 0.05 g/m 2 , representing approximately 0.1 to 10% of the binder weight, and the polymeric binder is a thermoplastic binder.
Claim 20
Dependent Claim
13 words
The assemblage of claim 16 wherein said thermoplastic binder is a styrene-acrylonitrile copolymer.
Claim 21
Dependent Claim
12 words
The assemblage of claim 15 wherein said siloxane is an aminopropyldimethyl-terminated polydimethylsiloxane.
Claim 22
Dependent Claim
20 words
The assemblage of claim 15 wherein said siloxane polymer is a T-structure polydimethylsiloxane with an aminoalkyl functionality at the branchpoint.
Claim 23
Dependent Claim
29 words
The assemblage of claim 15 wherein said support of the dye-donor element comprises poly(ethylene terephthalate) and said dye layer comprises sequential repeating areas of cyan, magenta and yellow dye.
References Cited (Backward Citations)
EP0163145A2
Cited
JPS61227087A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-04-19 | 1991-10-19 | 1992-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-19 | 1995-10-19 | 1996-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-19 | 1999-10-19 | 2000-04-19 | $7700.00 | Window Closed / Lapsed |