Seal components

A sealing composition using an olefin polymer with acid anhydride and/or carboxyl groups, calcium oxide, and semi-calcined hydrotalcite addresses the challenge of achieving both water vapor barrier and transparency in electronic device seals, forming a transparent and effective moisture barrier.

JP7885605B2Active Publication Date: 2026-07-07AJINOMOTO CO INC
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Patent Information

Application Number
JP2022105367
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-07-01
Filing Date
2022-06-30
Publication Date
2026-07-07
Estimated Expiration
2042-06-30

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Abstract

To provide a sealing composition capable of forming a sealing layer excellent in both water vapor intrusion barrier properties and transparency.SOLUTION: The sealing composition contains (A) an olefinic polymer and (B) calcium oxide and optionally further contains (C) semi-calcined hydrotalcite. The component (A) contains an olefinic polymer having an acid anhydride group and / or a carboxy group. The component (B) has a median diameter of 300 nm or less.SELECTED DRAWING: None
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Citation Information

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