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    • 4. 发明授权
    • Expandable polyurethane composition and manufacturing method of polyurethane foam
    • 聚氨酯泡沫塑料的发泡聚氨酯组合物及其制造方法
    • US09266994B2
    • 2016-02-23
    • US13131479
    • 2010-06-02
    • Toshihisa Nasa
    • Toshihisa Nasa
    • C08G18/32C08G18/30C08G18/34C08G18/38C08G18/48C08G18/66C08G18/72C08G101/00
    • C08G18/3275C08G18/302C08G18/3296C08G18/348C08G18/3893C08G18/4837C08G18/667C08G18/721C08G2101/0008C08G2101/005C08G2101/0083
    • An expandable polyurethane composition contains (A) a polyisocyanate, (B) an active hydrogen containing compound containing (B1) a polyol and (B2) water, and (C) a cross-linking agent composition. The cross-linking agent composition (C) contains a cross-linking agent (C1) and a carboxylic acid (C2). The cross-linking agent (C1) can be selected from an alkanolamine (a) represented by an expression: HxR1yN((R2O)nH)3-x-y, and an aminosilane (b) represented by an expression: (R3O)qR43-qSi—R5—(NHCH2CH2)pNR6R7. A content of the cross-linking agent composition (C) is 0.1 parts by mass to 20 parts by mass relative to 100 parts by mass of the active hydrogen containing compound (B), and the containing number of moles of the cross-linking agent (C1) is larger than that of the carboxylic acid (C2). It is possible to delay a reaction without deteriorating a final reactivity, to suppress viscosity increasing just after an injection into a mold, to improve hardness and to attain lowering of a pressure to be applied to a cell communication.
    • 可发性聚氨酯组合物含有(A)多异氰酸酯,(B)含有(B1)多元醇和(B2)水的活性氢化合物,(C)交联剂组合物。 交联剂组合物(C)含有交联剂(C1)和羧酸(C2)。 交联剂(C1)可以选自由以下表达式表示的链烷醇胺(a):由HxR1yN((R2O)nH)3-xy表示的氨基硅烷(b)表示:(R3O)qR43-qSi -R5-(NHCH2CH2)pNR6R7。 交联剂组合物(C)的含量相对于100质量份含活性氢化合物(B)为0.1质量份〜20质量份,交联剂的含有摩尔数 (C1)比羧酸(C2)大。 可以延迟反应而不会使最终反应性恶化,以便在注入模具之后抑制粘度增加,从而提高硬度并降低施加于电池连通的压力。