WO2026131482 - ANTI-WHITENING OPTICALLY CLEAR ADHESIVE
National phase entry is expected:
Publication Number
WO/2026/131482
Publication Date
25.06.2026
International Application No.
PCT/EP2025/086745
International Filing Date
12.12.2025
Title **
[English]
ANTI-WHITENING OPTICALLY CLEAR ADHESIVE
[French]
ADHÉSIF OPTIQUEMENT TRANSPARENT ANTI-BLANCHIMENT
Applicants **
TESA SE
Inventors
ZHANG, Yuwei
LIU, Wei
WANG, Hui
Priority Data
202411853998.X
16.12.2024
CN
Application details
| Total Number of Claims/PCT | * |
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| 译文 |
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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 1880 | |
| EPO | Filing, Examination, Granting | 8126 | |
| Japan | Filing, Examination, Granting | 2001 | |
| South Korea | Filing, Examination, Granting | 1757 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
18,504
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Abstract[English]
The present invention relates to an anti-whitening optical clear adhesive. The raw materials for producing the optically clear adhesive comprise a base material and two kinds of monomers, the monomers are an ethoxylated polyol acrylate monomer and another polyol acrylate monomer, and the weight average molecular weight of the ethoxylated polyol acrylate monomer is from 500 to 3000 g/mol. The present invention also relates to a double-sided optical clear adhesive tape, comprising the optical clear adhesive. The anti-whitening property of the optically clear adhesive of the present invention is significantly improved.[French]
La présente invention concerne un adhésif transparent optique anti-blanchiment. Les matières premières pour produire l'adhésif optiquement transparent comprennent un matériau de base et deux types de monomères, les monomères sont un monomère acrylate de polyol éthoxylé et un autre monomère acrylate de polyol, et le poids moléculaire moyen en poids du monomère acrylate de polyol éthoxylé est de 500 à 3 000 g/mol. La présente invention concerne également un ruban adhésif transparent optique double face, comprenant l'adhésif transparent optique. La propriété anti-blanchiment de l'adhésif optiquement transparent de la présente invention est considérablement améliorée.