Polyether polyol composition

A polyether polyol composition with controlled metal content and molecular weight distribution addresses issues of tensile strength and thermal stability in polyurethanes, enhancing compatibility and reactivity for improved performance.

JP2026031312APending Publication Date: 2026-02-24MITSUBISHI CHEM CORP
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Patent Information

Application Number
JP2024178223
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-08-08
Filing Date
2024-10-10
Publication Date
2026-02-24

AI Technical Summary

Technical Problem

Existing polyether polyol compositions used in polyurethanes and polyesters suffer from unsatisfactory tensile strength, elongation at break, low thermal decomposition temperature, and insufficient heat resistance.

Method used

A polyether polyol composition with a specific metal content ranging from 0.01 ppm to 200 ppm by mass, a molecular weight distribution of 1.80 or more, and a number average molecular weight between 600 and 9,900, incorporating a divalent hydrocarbon group structure, is developed to enhance compatibility and reactivity with urethane raw materials.

Benefits of technology

The composition achieves high thermal decomposition temperature, excellent compatibility with urethane raw materials, and good reactivity, resulting in polyurethanes with improved tensile strength.

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Abstract

To provide a polyether polyol composition which has a high thermal decomposition temperature, is excellent in compatibility with a urethane raw material, has good reactivity as a urethane raw material, and can exhibit excellent tensile resistance when formed into a polyurethane.SOLUTION: A polyether polyol composition comprising a polyether polyol represented by the following formula (1) and a metal, wherein the metal content is 0.01 ppm by mass or more and 200 ppm by mass or less: (In the above formula (1), R1 represents a divalent hydrocarbyl group having 2 to 10 carbon atoms, R2 represents a divalent hydrocarbyl group having less carbon atoms than R1, n is an integer of 1 to 40, m is an integer of 1 or more, and s is an integer of 1 to 30.). In Formula (1), a plurality of R1's may be the same as or different from each other. ) SELECTED DRAWING: None
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Citation Information

Patent Citations

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