Thermal transfer sheet, coating liquid for release layer, and method for producing thermal transfer sheet

US11148450B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11148450-B2
Application numberUS-201916768365-A
CountryUS
Kind codeB2
Filing dateJan 31, 2019
Priority dateJan 31, 2018
Publication dateOct 19, 2021
Grant dateOct 19, 2021

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

To provide a coating liquid for release layer with which a release layer having a small variation in the performance difference can be stably formed, to provide a method for producing a thermal transfer sheet using this coating liquid for release layer, and to provide a thermal transfer sheet having stable releasability. A thermal transfer sheet having a substrate 1 , a release layer 2 provided on the substrate 1 , and a transfer layer 10 provided on the release layer 2 , wherein the transfer layer 10 is provided peelably from the release layer 2 , and the release layer 2 contains a silsesquioxane.

First claim

Opening claim text (preview).

The invention claimed is: 1. A thermal transfer sheet having a substrate, a release layer provided on the substrate, and a transfer layer provided on the release layer, wherein the transfer layer is provided peelably from the release layer, and wherein the release layer has a reaction product of a silsesquioxane having an epoxy group and a resin having a carboxyl group. 2. The thermal transfer sheet according to claim 1 , wherein an acid value of the resin having a carboxyl group is 10 mgKOH/g or more.

Assignees

Inventors

Classifications

  • Intermediate layers; Layers between substrate and imaging layer · CPC title

  • Thermal donors, e.g. thermal ribbons · CPC title

  • Post-imaging transfer of imaged layer; transfer of the whole imaged layer · CPC title

  • relating to melt (thermal) mass transfer · CPC title

  • Dye diffusion thermal transfer printing (D2T2) · CPC title

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Frequently asked questions

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What does patent US11148450B2 cover?
To provide a coating liquid for release layer with which a release layer having a small variation in the performance difference can be stably formed, to provide a method for producing a thermal transfer sheet using this coating liquid for release layer, and to provide a thermal transfer sheet having stable releasability. A thermal transfer sheet having a substrate 1 , a release layer 2 …
Who is the assignee on this patent?
Dainippon Printing Co Ltd
What technology area does this patent fall under?
Primary CPC classification B41M5/52. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Oct 19 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).