Diol-containing composition, polycarbonate diol composition and method for producing the same, and polyurethane

Incorporating a tetrahydropyran compound into the diol-containing composition for polycarbonate diol production addresses the performance limitations of existing polyurethanes, enabling stable production of compositions suitable for paints, coatings, and adhesives with enhanced mechanical and chemical resistance.

JP2026054816APending Publication Date: 2026-03-30MITSUBISHI CHEM CORP
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Patent Information

Application Number
JP2024160126
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-09-17
Publication Date
2026-03-30

AI Technical Summary

Technical Problem

Existing polycarbonate diols and polyurethanes are not sufficiently performant for applications such as paints, coatings, and adhesives, and there is a lack of methods to incorporate specific compounds to enhance their suitability for these uses.

Method used

Incorporating a tetrahydropyran compound into the diol-containing composition used as a raw material for polycarbonate diol production, specifically through a diol compound represented by general formula (IV) and a tetrahydropyran compound represented by general formula (III-1), with controlled mass percentages to enhance mechanical properties and chemical resistance.

Benefits of technology

Enables the stable production of polycarbonate diol compositions suitable for paints, coatings, and adhesives, providing polyurethanes with improved mechanical properties and chemical resistance.

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Abstract

To provide a diol-containing composition capable of stably producing a polycarbonate diol composition for obtaining a polyurethane suitable for use as a coating material, a coating agent or an adhesive.SOLUTION: A diol-containing composition comprising a diol compound (4) represented by the following general formula (IV) and a tetrahydropyran compound (3-1) represented by the following general formula (III-1): (In the general formula (IV), n is an integer of 3 to 6.). ) (In the general formula (III-1), R1 represents a hydrogen atom or an alkyl group having 2 to 12 carbon atoms which may have a substituent or a hetero atom. ) A polycarbonate diol composition comprising the diol-containing composition and a carbonate-based compound as raw materials.SELECTED DRAWING: None
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