COMPOSITION FOR FORMING POLYISOCYANURATE FOAM AND POLYISOCYANURATE FOAM

• Main Authors: ASHIHARA, Masayuki, YOSHIHARA, Hirokazu, KASHIWAMOTO, Yuudai, MOMII, Toshikazu
• Format: Patent
• Language: English; French; German
• Published: 31.03.2021
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; 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; WORKING-UP

[Problem] To provide a composition capable of forming a polyisocyanurate foam enabling excellent surface quality, particularly, smoothness of a formed article.[Solution] The present invention is a composition for forming a polyisocyanurate foam, the composition comprising a polyol; a polyisocyanate; and a blowing agent, wherein the blowing agent comprises a hydrofluoroolefin, at least one carboxylic acid selected from the group consisting of a monocarboxylic acid and a dicarboxylic acid, and water, and the amount of water contained in the composition is not more than 0.5% by mass.