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    • 15. 发明公开
    • 바이오 폴리올을 함유하는 자동차용 경질 폴리우레탄 폼
    • 用于含有生物聚合物的汽车的刚性聚氨酯泡沫塑料(RIGID POLYURETHANE FOAMS FOR AUTOMOBILE CONTAINING BIOPOLYOL)
    • KR1020120099934A
    • 2012-09-12
    • KR1020110018466
    • 2011-03-02
    • 케이피엑스케미칼 주식회사
    • 이상목정휘국이상호김용수권건호이윤호권재근
    • C08G18/28C08G18/09C08G18/42C08G18/63C08G18/16C08J9/16C08G18/18C08G101/00
    • C08G18/28C08G18/09C08G18/16C08G18/18C08G18/4288C08G18/632C08G2101/0025C08J9/16
    • PURPOSE: Hard polyurethane foam is provided to able to maintain physical properties like impact resistance, environment-friendliness, moldability, dimensional stability, flame retardance, etc by using bio-polyol having a specific number of functional groups, a specific value of hydroxy group, a specific viscosity, etc. CONSTITUTION: Hard polyurethane foam comprises polyol comprising bio polyol, and isocyanate. A core density of the hard polyurethane foam is 150 kg/m^3 or lower, a compressive strength is 2.0 kg/cm^2 or higher, a flexural strength is 3.0 kg/cm^2 or higher, an elongation is 40% or higher, a dimensional stability is -2.0% or less at 30 °C, 24 hr, and 3.0% or less at 70 °C, 24 hr. The biopolyol comprises 10-60 weight% of natural oil, 10-60 weight% of a polyfunctional active hydrogen-containing compound, 0.1-1.5 weight% of a catalyst, and 20-70 weight% of alkylene oxide. A number of functional groups is 3 or higher, a hydroxyl value of KOH/g is 200-600 mg, and a viscosity 25 25°C is 2,000-25,000.
    • 目的:提供硬质聚氨酯泡沫,通过使用具有特定数目的官能团的生物多元醇,羟基的特定值,能够保持物理性质如抗冲击性,环境友好性,成型性,尺寸稳定性,阻燃性等, 比粘度等。构成:硬质聚氨酯泡沫包括含有生物多元醇和异氰酸酯的多元醇。 硬质聚氨酯泡沫的芯密度为150kg / m 3以下,抗压强度为2.0kg / cm 2以上,弯曲强度为3.0kg / cm 2以上,伸长率为40%, 更高,尺寸稳定性在30℃,24小时时为-2.0%以下,在70℃,24小时为3.0%以下。 生物多元醇包含10-60重量%的天然油,10-60重量%的多官能含活性氢化合物,0.1-1.5重量%的催化剂和20-70重量%的氧化烯。 多个官能团为3以上,KOH / g的羟基值为200〜600mg,粘度25±25℃为2,000〜25,000。