ISOCYANATE-CONTAINING COMPOSITION AND TWO-LIQUID REACTION TYPE POLYURETHANE RESIN COMPOSITION

• Main Authors: TANABE SHICHIDAI, YAMADA YOSHINORI
• Format: Patent
• Language: English; Japanese
• Published: 30.11.2022
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

To provide an isocyanate-containing composition which, in a polyurethane resin composition comprising inorganic filler, improves miscibility with a polyol-containing composition while suppressing deterioration of storage stability of the isocyanate-containing composition.SOLUTION: An isocyanate-containing composition comprises: an isocyanate group-containing urethane prepolymer obtained by reacting a polyol having an average number of functional groups of 2.5 or less and a weight average molecular weight of 700 or more and a polyisocyanate, the urethane prepolymer being used as a polyisocyanate component of a two-liquid reaction type urethane resin composition; inorganic filler; a plasticizer; and a specific polyoxyethylene compound.SELECTED DRAWING: None 【課題】無機充填剤を含むポリウレタン樹脂組成物において、イソシアネート含有組成物の貯蔵安定性の低下を抑えながら、ポリオール含有組成物との混合性を向上する、イソシアネート含有組成物を提供する。【解決手段】２液反応型ポリウレタン樹脂組成物のポリイソシアネート成分として用いられるものであって、平均官能基数が２．５以下かつ重量平均分子量が７００以上のポリオールとポリイソシアネートとを反応させて得られるイソシアネート基含有ウレタンプレポリマー、無機充填剤、可塑剤、および、特定のポリオキシエチレン化合物を含む、イソシアネート含有組成物とする。【選択図】なし