Process for preparing rigid foamed materials containing urethane groups
    7.
    发明授权
    Process for preparing rigid foamed materials containing urethane groups 失效
    制备含有氨基甲酸酯基团的刚性泡沫材料的方法

    公开(公告)号:US06509387B1

    公开(公告)日:2003-01-21

    申请号:US09077914

    申请日:1998-06-04

    IPC分类号: C08G1850

    摘要: The description relates to production of rigid foamed plastics containing urethane groups, by use of a blowing-agent mixture containing 5 to 50 parts by weight of C3 and/or C4 alkanes and 50 to 95 parts by weight of cyclopentane. There is also a description of use of the thus-produced rigid foamed plastics as composite components or for foam filling of cavities in refrigerator construction.

    摘要翻译: 该描述涉及使用含有5至50重量份的C3和/或C4烷烃和50至95重量份环戊烷的发泡剂混合物来生产含有氨基甲酸酯基的刚性发泡塑料。 还描述了如此制造的硬质泡沫塑料作为复合部件或在冰箱结构中用于泡沫填充空腔的用途。

    Process for producing hydrocarbon-blown hard polyurethane foams
    8.
    发明授权
    Process for producing hydrocarbon-blown hard polyurethane foams 有权
    用于生产碳氢化合物的硬质聚氨酯泡沫体的方法

    公开(公告)号:US5962542A

    公开(公告)日:1999-10-05

    申请号:US155082

    申请日:1998-09-18

    摘要: A process for preparing rigid expanded materials containing urethane and optionally urea and isocyanurate groups, characterised in that a polyurethane rigid foam is prepared by reactinga) an aromatic polyisocyanate withb) a polyol component with on average at least 3 hydrogen atoms which can react with isocyanates, containing1) 30 to 80 wt. % of an aromatic amine started polyether with a molecular weight of 300 to 800 based on 70 to 100 wt. % of 1,2-propylene oxide and 0 to 30 wt. % of ethylene oxide2) 10 to 40 wt. % of a substantially sucrose started polyether with a molecular weight of 400 to 1,000 based on 70 to 100 wt. % of 1,2-propylene oxide and 0 to 30 wt. % of ethylene oxide3) 5 to 30 wt. % of a propylene glycol started polyether with a molecular weight of 500 to 1,500 based on 70 to 100 wt. % of 1,2-propylene oxide and 0 to 30 wt. % of ethylene oxide4) n-pentane and/or i-pentane as blowing agent5) water6) optional auxiliary agents and additives,wherein the sum of the wt. % of components 1), 2) and 3) is 100, is described.

    摘要翻译: PCT No.PCT / EP97 / 01198 Sec。 371日期:1998年9月18日 102(e)1998年9月18日PCT 1997年3月10日PCT PCT。 第WO97 / 35899号公报 日期1997年10月2日制备含有氨基甲酸酯和任选的脲和异氰脲酸酯基团的刚性发泡材料的方法,其特征在于聚氨酯硬质泡沫体通过使a)芳族多异氰酸酯与b)多元醇组分与平均至少3个氢 可与异氰酸酯反应的原子,含有1)30〜80重量% %的芳族胺基于70〜100重量%开始分子量为300〜800的聚醚。 %的1,2-环氧丙烷和0至30wt。 %的环氧乙烷2)10〜40wt。 %的基本上蔗糖起始的聚醚,其分子量为400至1,000,基于70至100重量% %的1,2-环氧丙烷和0至30wt。 %的环氧乙烷3)5〜30wt。 %的丙二醇开始分子量为500〜1500的聚醚,基于70〜100重量% %的1,2-环氧丙烷和0至30wt。 %的环氧乙烷4)正戊烷和/或异戊烷作为发泡剂5)水6)任选的助剂和添加剂,其中wt。 %的组分1),2)和3)为100。

    Method of producing hydrocarbon-expanded rigid polyurethane foams
    10.
    发明授权
    Method of producing hydrocarbon-expanded rigid polyurethane foams 有权
    生产碳氢化合物膨胀硬质聚氨酯泡沫的方法

    公开(公告)号:US6071978A

    公开(公告)日:2000-06-06

    申请号:US142992

    申请日:1998-09-11

    摘要: A process for preparing polyurethane rigid foams from polyols and polyisocyanates as well as blowing agents and optionally foam auxiliary agents, characterized in that the polyurethane rigid foam is obtained by reactingA) a polyol component with on average at least 3 hydrogen atoms, containing1. 60 to 100% of polyethers and/or polyesters with at least 2 hydroxyl groups and a molecular weight of 250 to 1,500, which have a surface tension of 6 to 14 mN/m with respect to i-pentane and/or n-pentane as blowing agent,2. i-pentane and/or n-pentane as blowing agent,3. water and4. optionally auxiliary agents and additiveswithB) a polyisocyanate with an NCO-content of 20 to 48 wt. % which has a surface tension of 4.0 to 8 mN/m with respect to i-pentane or n-pentane as blowing agentis described.

    摘要翻译: PCT No.PCT / EP97 / 01060 Sec。 371日期:1998年9月11日 102(e)日期1998年9月11日PCT 1997年3月3日PCT公布。 公开号WO97 / 34946 日期1997年9月25日一种由多元醇和多异氰酸酯以及发泡剂和任选的泡沫助剂制备聚氨酯硬质泡沫的方法,其特征在于聚氨酯硬质泡沫是通过使A)多元醇组分与平均至少3个氢 原子,含有1.6至100%的具有至少2个羟基和分子量为250至1,500的聚醚和/或聚酯,其相对于异戊烷和/或其混合物具有6至14mN / m的表面张力, 或正戊烷作为发泡剂,2.1-戊烷和/或正戊烷作为发泡剂,3.水和4.任选的助剂和添加剂,B)NCO含量为20-48wt。%的多异氰酸酯。 对相对于正戊烷或正戊烷作为发泡剂的表面张力为4.0〜8mN / m的%进行了说明。