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IP Verse

Poly(Ether Ketone Ketone) Polymers, Corresponding Synthesis Methods And Polymer Compositions And Articles Made Therefrom - EP3559085

The patent EP3559085 was granted to Solvay Specialty Polymers USA on Aug 6, 2025. The application was filed on Dec 19, 2017 under application number EP17821886A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

EP3559085

SOLVAY SPECIALTY POLYMERS USA
Application Number
EP17821886A
Filing Date
Dec 19, 2017
Status
Patent Maintained As Amended
Jul 4, 2025
Publication Date
Aug 6, 2025
External Links
Slate, Register, Google Patents

Patent Summary

Poly(ether ketone ketone) (PEKK) polymers with improved processability and crystallinity for demanding applications such as aerospace, oil and gas drilling, and medical devices. The PEKK polymers have a tailored thermal and physical property profile achieved through controlled synthesis of the polymer backbone, enabling enhanced melt flow and crystallization behavior while maintaining high thermal and mechanical performance.

Patent Family

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.

CompanyOpposition DateRepresentativeOpposition Status
ARKEMA FRANCENov 17, 2021ARKEMA PATENTADMISSIBLE

Patent Citations (15) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation PhasePublication Number
DESCRIPTIONCN1974631
DESCRIPTIONUS5250738
DESCRIPTIONUS5300693
DESCRIPTIONUS9133111
DESCRIPTIONUS9175136
INTERNATIONAL-SEARCH-REPORTCN1974631
INTERNATIONAL-SEARCH-REPORTEP0193187
INTERNATIONAL-SEARCH-REPORTEP0323076
OPPOSITIONCN1974631
OPPOSITIONUS2007265414
OPPOSITIONUS2011224399
OPPOSITIONUS4816556
OPPOSITIONWO2015179587
OPPOSITIONWO2016092087
OPPOSITIONWO2017153290

Dossier Documents

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    Description

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