Xylylene Diisocyanate Composition, Modified Xylylene Diisocyanate Composition, Polymerizable Composition, Resin, Molded Body, Optical Element, And Lens
Patent No. EP4089071 (titled "Xylylene Diisocyanate Composition, Modified Xylylene Diisocyanate Composition, Polymerizable Composition, Resin, Molded Body, Optical Element, And Lens") was filed by Mitsui Chemicals on Jun 14, 2021. The application was issued on Aug 7, 2024.
Patent Summary
A xylylene diisocyanate composition and its modified polymerizable composition that enhance optical properties of polymers, particularly in UV-stabilized polymers. The composition contains a xylylene diisocyanate with specific functional groups that improve yellowing resistance and transparency in UV-stabilized polymers. The modified polymerizable composition combines the xylylene diisocyanate with an active hydrogen-containing component, enhancing UV stability and optical clarity.
Patent Family
Patent Oppositions
Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.
Dossier Documents
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
Date
Description
Get instant alerts for new documents
EP4089071
- Application Number
- EP21922976A
- Filing Date
- Jun 14, 2021
- Status
- Granted And Under Opposition
- Jul 5, 2024
- Publication Date
- Aug 7, 2024
- External Links
- Slate, Register , Google Patents