Use Of A Coating Composition And Corresponding Method For Producing A Centrifugal Casting Mould With A Coating

Patent No. EP3837066 (titled "Use Of A Coating Composition And Corresponding Method For Producing A Centrifugal Casting Mould With A Coating") was filed by Httenes Albertus Chemische Werke Gesellschaft MIT Beschrnkter Haftung on Aug 13, 2019. The application was issued on Jun 29, 2022.

Patent Summary

A sizing composition for centrifugal casting with a solids content of more than 69% by weight and a loss on ignition of less than 0.6% by weight, enabling rapid drying and controlled microstructure formation while minimizing gas defects and mold wear. The composition comprises a particulate, amorphous oxide, preferably microsilica, as the primary component, and secondary components such as zirconium oxide, carbon, and Lewis acids. The composition is applied to the inner wall of a centrifugal casting mold using a spray application method, enabling the production of castings with structured surfaces.

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.

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

EP3837066

HTTENES ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRNKTER HAFTUNG
Application Number
EP19753348A
Filing Date
Aug 13, 2019
Status
Granted And Under Opposition
May 27, 2022
Publication Date
Jun 29, 2022