Two-component polyurethane adhesive
    4.
    发明授权
    Two-component polyurethane adhesive 失效
    双组分聚氨酯胶粘剂

    公开(公告)号:US4551517A

    公开(公告)日:1985-11-05

    申请号:US680862

    申请日:1984-12-12

    摘要: The invention relates to two-component polyurethane adhesive preparations in which the resin component is an oleochemical polyol. The oleochemical polyols used are ring-opened products of the reaction of epoxidized fatty alcohols, fatty acid esters (particularly triglycerides) or fatty acid amides with alcohols. The oleochemical polyols may be varied within wide limits in regard to their OH-functionality and so formulated with the hardener polyisocyanate components that the adhesives satisfy the relevant requirements. Reaction products of epoxidized triglycerides with monohydric alcohols are a particularly effective substitute for castor oil.

    摘要翻译: 本发明涉及双组分聚氨酯粘合剂制剂,其中树脂组分是油性多元醇。 所使用的油性多元醇是环氧化脂肪醇,脂肪酸酯(特别是甘油三酯)或脂肪酸酰胺与醇的反应的开环产物。 油化学多元醇在其OH官能度方面可以在宽范围内变化,并且与粘合剂满足相关要求的硬化剂多异氰酸酯组分配制。 环氧化甘油三酯与一元醇的反应产物是蓖麻油的特别有效的替代品。

    Polyurethane prepolymer containing NCO groups
    7.
    发明授权
    Polyurethane prepolymer containing NCO groups 失效
    含有NCO基团的聚氨酯预聚物

    公开(公告)号:US06359023B1

    公开(公告)日:2002-03-19

    申请号:US09011521

    申请日:1998-02-10

    IPC分类号: C08G1800

    摘要: Described is an NCO-group-containing polyurethane prepolymer madefrom polyisocanyates and polyols derived from natural oils. The invention is characterized in that the polyol is obtained by transesterification in the presence of basic lithium compounds. Together with a tertiary amine used to accelerate the moisture curing, the storage stability is thus increased considerably. Up to 4.0 mmol of the lithium compound is used per kilogram of polyol, and 0.1 to 2.0% by wt. of the amine, relative to the total weight of the composition, is used as the accelerator. The polyurethane prepolymer is suitable not only for the production of adhesives but also for the production of foamed materials, in particular those dispensed from throw-away pressure vessels.

    摘要翻译: 描述了由衍生自天然油的聚异氰酸酯和多元醇制成的含有NCO基的聚氨酯预聚物。 本发明的特征在于多元醇是在碱性锂化合物的存在下通过酯交换得到的。 与用于加速湿度固化的叔胺一起,因此储存稳定性显着增加。 每千克多元醇使用高达4.0毫摩尔的锂化合物,和0.1-2.0重量%。 的胺相对于组合物的总重量被用作促进剂。 聚氨酯预聚物不仅适用于生产粘合剂,而且适用于生产泡沫材料,特别是从扔掉的压力容器中分配的那些。