BLENDED POLYOL COMPOSITION AND USE THEREOF

• Main Authors: WADA HIDENORI, AOKI SHOKO
• Format: Patent
• Language: English; Japanese
• Published: 09.11.2022
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

To provide a blended polyol composition that allows production of a rigid polyurethane foam excellent in dimensional stability and that is excellent in storage stability.SOLUTION: Provided is a blended polyol composition, comprising: a plurality of types of polyols; and 6 to 10 parts by mass of water based on 100 parts by mass of a total mass of the polyols, wherein the plurality of types of polyols include: 20 to 55 mass% of polyol A; 15 to 40 mass% of polyol B; and 20 to 50 mass% of polyol C based on the total mass; and wherein the polyol A is obtained by subjecting an initiator having 3.5 to 8 functional groups to ring-opening addition polymerization with an alkylene oxide, and has an OH value of 350 to 500 mgKOH/g; and the polyol B is obtained by subjecting an initiator having 1.5 to 3.5 functional groups to ring-opening addition polymerization with an alkylene oxide, and has an OH value of 50 to 120 mgKOH/g; and the polyol C is obtained by subjecting an initiator comprising amine compound having 3 to 5 functional groups to ring-opening addition polymerization with an alkylene oxide, and has an OH value of 300 to 500 mgKOH/g.SELECTED DRAWING: None 【課題】寸法安定性に優れる硬質ポリウレタンフォームを製造することができ、かつ貯蔵安定性に優れる配合ポリオール組成物を提供する。【解決手段】複数種のポリオールと、該ポリオールの総質量１００質量部に対し６～１０質量部の水とを含む配合ポリオール組成物であって、複数種の前記ポリオールが、その総質量を基準として：２０～５５質量％のポリオールＡ；１５～４０質量％のポリオールＢ；及び２０～５０質量％のポリオールＣを含み、かつ：前記ポリオールＡが、官能基数３．５～８の開始剤に、アルキレンオキサイドを開環付加重合させたものであり、かつＯＨ価が３５０～５００ｍｇＫＯＨ／ｇであり；前記ポリオールＢが、官能基数１．５～３．５の開始剤に、アルキレンオキサイドを開環付加重合させたものであり、かつＯＨ価が５０～１２０ｍｇＫＯＨ／ｇであり；かつ前記ポリオールＣが、官能基数３～５のアミン化合物を含む開始剤に、アルキレンオキサイドを開環付加重合させたものであり、かつＯＨ価が３００～５００ｍｇＫＯＨ／ｇである、配合ポリオール組成物。【選択図】なし