TWO LIQUID REACTION TYPE URETHANE RESIN COMPOSITION AND METHOD FOR MANUFACTURING THE SAME

• Main Authors: SADO SHINICHIRO, NISHIKAWA SHINJI, KATAOKA SHINSUKE, KINAMI SAEKO, TAKEUCHI HIROSHI, KAWASE EIICHI, MURATA KAZUKI, IDO HIROAKI, WATANABE YUJI, TAKASAKI MASANORI
• Format: Patent
• Language: English; Japanese
• Published: 17.10.2019
• 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 material simply applied to a desired portion in a work site and excellent in sound absorption performance capable of effectively preventing sound leakage.SOLUTION: A two liquid reaction type urethane resin composition is prepared from a polyisocyanate component (X) and a polyol component (Y). The polyol component (Y) includes a polyol component (a), a catalyst (b), a foam stabilizer (c), an amine compound (d) having a primary or secondary amino group and a carbon dioxide (e), and the two liquid reaction type urethane resin composition when cured is an open cell flexible polyurethane foam. The average sound absorption coefficient of the polyurethane foam measured at 63 to 5000 Hz by JISA1405-2:2007 is 30% or more, and a liquid dripping length measured by a specific method is within 300 mm.SELECTED DRAWING: Figure 2 【課題】作業現場で所望の部位に簡便に適用することができ、かつ音漏れを効果的に防止しうる吸音性能に優れた材料。【解決手段】ポリイソシアネート成分（Ｘ）とポリオール含有成分（Ｙ）とから調製される２液反応型ウレタン樹脂組成物であって、ポリオール含有成分（Ｙ）が、ポリオール成分（ａ）、触媒（ｂ）、整泡剤（ｃ）、１級または２級のアミノ基を有するアミン化合物（ｄ）および二酸化炭素（ｅ）を含み、硬化した際の前記２液反応型ウレタン樹脂組成物が、連続気泡性軟質ポリウレタンフォームであり、該ポリウレタンフォームのＪＩＳＡ１４０５−２：２００７により測定される６３ヘルツから５０００ヘルツの平均吸音率が３０％以上であり、かつ、特定の方法により測定される液垂れ長さが、３００ｍｍ以内である、２液反応型ウレタン樹脂組成物。【選択図】図２