Polyisocyanate composition, polymerizable composition, resin, molded article, optical element and lens

JP7634087B2Active Publication Date: 2025-02-20MITSUI CHEMICALS INC
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Patent Information

Application Number
JP2023530099
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-06-22
Filing Date
2022-06-22
Publication Date
2025-02-20
Estimated Expiration
2042-06-22

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Abstract

The polyisocyanate composition contains a polyisocyanate having an isocyanatomethyl group, and a 1-nylon polymer. The proportion of the mass of amide bonds in the polyisocyanate composition to the mass of isocyanate groups in the polyisocyanate composition is 8000 ppm or less.
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Citation Information

Patent Citations

  • Lens and method of producing the same

    JP2017211547A

  • Method for producing (THIO)urethane-based molded body

    JP2017214488A

  • Polymerizable composition for optical material

    JP2020139085A

  • Xylylenediisocyanate composition, resin, and polymerizable composition

    WO2017179575A1

  • Isocyanate composition and production method for isocyanate polymer

    WO2018070539A1