Sheet, moisture-proof method of adherend using the sheet and corrosion-proof method of metal plate using the sheet

US12319048B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12319048-B2
Application numberUS-202117473026-A
CountryUS
Kind codeB2
Filing dateSep 13, 2021
Priority dateApr 8, 2015
Publication dateJun 3, 2025
Grant dateJun 3, 2025

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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.

The present invention provides a sheet having an elastomer layer having a Shore A hardness of less than 40, wherein the elastomer layer has an adhesion force to stainless steel of not more than 11 oz/in at 90 degree peel strength.

First claim

Opening claim text (preview).

The invention claimed is: 1. A method of moisture-proofing an adherend, comprising adhering a sheet comprising an elastomer layer to the adherend with the elastomer layer of the sheet as an adhesive surface to the adherend, wherein the elastomer layer has a Shore A hardness of less than 40 and an adhesion force to stainless steel of not more than 11 oz/in at 90 degree peel strength, wherein the adherend is at least one adherend selected from the group consisting of a floor panel and a constructional material in a transporter or structure, and wherein the elastomer layer is a silicone rubber layer or urethane rubber layer having a Shore A hardness of less than 40. 2. The method according to claim 1 , wherein the sheet comprises, in the following order, the elastomer layer, and further comprises a core material layer and a pressure-sensitive adhesive layer. 3. The method according to claim 2 , wherein the sheet further comprises a release liner laminated on the elastomer layer. 4. The method according to claim 2 , wherein the sheet further comprises a release liner laminated on the pressure-sensitive adhesive layer. 5. The method according to claim 2 , wherein the core material layer is a plastic film. 6. The method according to claim 2 , wherein the core material layer is a nonporous film. 7. The method according to claim 2 , wherein the core material layer is a fluororesin film. 8. The method according to claim 1 , wherein the sheet comprises the elastomer layer, and further comprises a core material layer and a second elastomer layer having a Shore A hardness of less than 40. 9. The method according to claim 8 , wherein the sheet further comprises a release liner laminated on one of the elastomer layer and the second elastomer layer. 10. The method according to claim 8 , wherein the sheet further comprises a substrate laminated on one of the elastomer layer and the second elastomer layer. 11. The method according to claim 8 , wherein the core material layer is a plastic film. 12. The method according to claim 8 , wherein the core material layer is a nonporous film. 13. The method according to claim 8 , wherein the core material layer is a fluororesin film. 14. The method according to claim 2 , wherein the pressure-sensitive adhesive layer is a polyoxyalkylene-based adhesive layer. 15. The method according to claim 1 , further comprising, after the adhering, peeling the sheet from the adherend and performing the method using the peeled sheet or using a newly prepared sheet comprising an elastomer layer having a Shore A hardness of less than 40 and an adhesion force to stainless steel of not more than 11 oz/in at 90 degree peel strength. 16. A method of corrosion-proofing a metal plate, comprising adhering a sheet comprising, in the following order, an elastomer layer, a core material layer and pressure-sensitive adhesive layer, to the metal plate with the elastomer layer of the sheet as an adhesive surface to the metal plate, wherein the elastomer layer has a Shore A hardness of less than 40 and an adhesion force to stainless steel of not more than 11 oz/in at 90 degree peel strength, to obtain a corrosion-proofed metal plate.

Assignees

Inventors

Classifications

  • containing fluorine · CPC title

  • Synthetic rubber · CPC title

  • Metals, their alloys or their compounds · CPC title

  • Release layers · CPC title

  • Removing layers, or parts of layers, mechanically or chemically · CPC title

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Frequently asked questions

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What does patent US12319048B2 cover?
The present invention provides a sheet having an elastomer layer having a Shore A hardness of less than 40, wherein the elastomer layer has an adhesion force to stainless steel of not more than 11 oz/in at 90 degree peel strength.
Who is the assignee on this patent?
Nitto Denko Corp, Nitto Inc
What technology area does this patent fall under?
Primary CPC classification B32B7/06. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Jun 03 2025 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).