Patent US4910189A successfully refreshed from Google Patents.
US4910189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal transfer dyesheet
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1989-02-15
•
Granted: 1990-03-20
•
Expires: 2009-02-15
Abstract
Abstract A thermal transfer dyesheet having a printing surface against which a receptor substrate may be held to receive thermally transferable dye in response to thermal stimuli applied to the dyesheet, the dyesheet comprising a substrate supporting a dyecoat comprising the thermally transferable dye dispersed throughout a polymeric binder, characterised in that the polymeric binder comprises a thermoset silicone composition as a continuous layer overlying the dyecoat, a process for its preparation, and the use of a thermoset silicone composition as a layer overlying the dyecoat.
Inventors
- 👤 Richard A. Hann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:23
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/40; B41M5/42; B41M5/44; B41M5/443; B41M5/382; B41M5/392; B41M5/395; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10S430/00; Y10S430/146; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/24901; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
63 words
A thermal transfer dyesheet having a printing surface against which a receptor substrate may be held to receive a thermally transferable dye in response to thermal stimuli applied to the dyesheet, the dyesheet comprising a substrate supporting a dyecoat comprising the thermally transferable dye dissolved in or dispersed throughout a polymeric binder, characterised in that the polymeric binder comprises a thermoset silicone composition.
Claim 2
Dependent Claim
63 words
A thermal transfer dyesheet having a printing surface against which a receptor substrate may be held to receive a thermally transferable dye in response to thermal stimuli applied to the dyesheet, the dyesheet comprising a substrate supporting a dyecoat comprising the thermally transferable dye dissolved in or dispersed throughout a polymeric binder, characterised in that the polymeric binder comprises a thermoset silicone composition.
Claim 3
Dependent Claim
31 words
A dyesheet according to claim 1, characterised in that the polymeric binder is a mixture of polymers wherein at least 10% by weight of the binder is the thermoset silicone composition.
Claim 4
Dependent Claim
34 words
A dyesheet according to claim 1, characterised in that the dyecoat binder comprises a polymeric binder, in addition to the thermoset silicone composition, which is 50% or less by weight of the total binder.
Claim 5
Dependent Claim
22 words
A dyesheet according to claim 1, characterised in that the thermoset silicone composition comprises a polysiloxane resin cured with a tin-based catalyst.
Claim 6
Dependent Claim
35 words
A dyesheet according to claim 1, characterised in that the dye concentration in the dyecoat is from 2 to 8 g dye per 30 g silicone, and the dyecoat is less than 5 μm thick.
Claim 7
Dependent Claim
77 words
In a thermal transfer printing process wherein a thermal transfer dyesheet having a printing surface against which a receptor substrate is held to receive a thermally transferable dye in response to thermal stimuli applied to the dyesheet, the dyesheet comprising a substrate supporting a dyecoat comprising the thermally transferable dye dissolved in or dispersed throughout a polymeric binder, the improvement which comprises using, as the dyesheet, one in which the polymeric binder comprises a thermoset silicone composition.
Claim 8
Dependent Claim
77 words
In a thermal transfer printing process wherein a thermal transfer dyesheet having a printing surface against which a receptor substrate is held to receive a thermally transferable dye in response to thermal stimuli applied to the dyesheet, the dyesheet comprising a substrate supporting a dyecoat comprising the thermally transferable dye dissolved in or dispersed throughout a polymeric binder, the improvement which comprises using, as the dyesheet, one in which the polymeric binder comprises a thermoset silicone composition.
Claim 9
Dependent Claim
74 words
A thermal transfer dyesheet having a printing surface against which a receptor substrate may be held to receive a thermally transferable dye in response to thermal stimuli applied to the dyesheet, the dyesheet comprising a substrate supporting a dyecoat comprising the thermally transferable dye dissolved in or dispersed throughout a polymeric binder, characterised in that the polymeric binder comprises a thermoset silicone composition comprising a polysiloxane resin cured with a tin- or platinum-based catalyst.
Claim 10
Dependent Claim
74 words
A thermal transfer dyesheet having a printing surface against which a receptor substrate may be held to receive a thermally transferable dye in response to thermal stimuli applied to the dyesheet, the dyesheet comprising a substrate supporting a dyecoat comprising the thermally transferable dye dissolved in or dispersed throughout a polymeric binder, characterised in that the polymeric binder comprises a thermoset silicone composition comprising a polysiloxane resin cured with a tin- or platinum-based catalyst.
References Cited (Backward Citations)
JPS4811409B1
Cited
EP0036936A1
Cited
EP0076490A1
Cited
US4724228A
Cited
JPS61230986A
Cited
JPS623985A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-03-19 | 1993-09-18 | 1994-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-19 | 1997-09-18 | 1998-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-19 | 2001-09-18 | 2002-03-20 | $7700.00 | Window Closed / Lapsed |