Glass-Fiber-Reinforced Polycarbonate Resin Composition
Patent No. EP2977409 (titled "Glass-Fiber-Reinforced Polycarbonate Resin Composition") was filed by Teijin on Mar 17, 2014. The application was issued on Dec 7, 2022.
Patent Summary
A polycarbonate resin composition with improved weld strength, flame retardancy, and stiffness, comprising a polycarbonate-polydiorganosiloxane copolymer resin, an aromatic polycarbonate resin, glass fibers with a flat cross-section, an adhesion improving agent, a phosphorus-based flame retardant, and a fluorine-containing dripping inhibitor. The copolymer resin contains 0.10-2.00 wt% polydiorganosiloxane, and the adhesion improving agent is an organic compound with an epoxy or carboxylate functional group.
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
EP2977409
- Application Number
- EP14769671A
- Filing Date
- Mar 17, 2014
- Status
- Patent Maintained As Amended
- Nov 4, 2022
- Publication Date
- Dec 7, 2022
- External Links
- Slate, Register , Google Patents