Polycarbonate polyol compositions, adhesive compositions, water-based polyurethanes, water-dispersible compositions, polyurethanes for synthetic leather, and synthetic leather
A polycarbonate polyol composition with controlled ratios of specific compounds and impurities addresses the short pot life and weather resistance issues, resulting in polyurethane materials with improved handling and durability.
JP2026091284AActive Publication Date: 2026-06-03ASAHI KASEI KOGYO KABUSHIKI KAISHA
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- ASAHI KASEI KOGYO KABUSHIKI KAISHA
- Filing Date
- 2025-11-21
- Publication Date
- 2026-06-03
AI Technical Summary
Technical Problem
Existing polycarbonate diols used in polyurethane formulations exhibit short pot life and poor weather resistance when mixed with isocyanate, leading to issues with gelation and appearance of the polyurethane products.
Method used
A polycarbonate polyol composition containing specific ratios of compounds represented by formulas (A) and (B), with controlled metallic impurities and structural components, is developed to enhance pot life and weather resistance.
Benefits of technology
The composition provides polyurethane materials with a long pot life, good appearance, and excellent weather resistance, suitable for applications in paints, adhesives, and synthetic leather.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 2026091284000001_ABST
Abstract
To provide a polycarbonate polyol composition, etc., that can provide a polyurethane film with a long pot life, excellent handling properties, good appearance, and excellent weather resistance. [Solution] A polycarbonate polyol composition comprising a polycarbonate polyol having terminal hydroxyl groups, a compound represented by the following formula (A), and a compound represented by the following formula (B), wherein the mass ratio of compound (A) to compound (B) ((A) / (B)) is 0.0001 to 0.1000. JPEG2026091284000019.jpg10170 (In the above formula, R1 is hydrogen or an alkyl group having 1 to 12 carbon atoms, and R2 is an alkylene group having 1 to 12 carbon atoms.) JPEG2026091284000020.jpg11170 (In the above formula, R3 is an alkylene group having 2 to 12 carbon atoms, and may be a linear alkylene group, a divalent alicyclic hydrocarbon group, or a branched alkylene group.)
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