发明名称 |
WATER-BLOWN RIGID FOAMS FOR THE INSULATION OF LIQUEFIED NATURAL GAS TANKS |
摘要 |
<p>The present invention relates to a rigid polyurethane foam comprising reinforcing materials which can be obtained by mixing (a) isocyanates which have a viscosity at 25° C. of less than 500 mPas with (b) compounds having groups which are reactive toward isocyanates, (c) blowing agents comprising water, (d) catalysts and, if appropriate, (e) further additives to form a reaction mixture and applying the reaction mixture to a reinforcing material, wherein the compounds (b) having groups which are reactive toward isocyanates comprise a polyetherol (b1) having a functionality of 4 or more and a viscosity at 25° C. of 10 000 mPas or less and a polyetherol (b2) having a functionality of 3 or less and a viscosity at 25° C. of 500 mPas or less. The present invention further relates to a process for producing such rigid polyurethane foams and the use of the rigid polyurethane foams for the insulation of liquefied natural gas tanks.</p> |
申请公布号 |
EP2118163(B1) |
申请公布日期 |
2010.07.28 |
申请号 |
EP20080701189 |
申请日期 |
2008.01.02 |
申请人 |
BASF SE |
发明人 |
LEHMANN, PIT;THANE, KATRIN;HWANG, CHEOL-HYUN |
分类号 |
C08G18/16;C08G18/18;C08G18/20;C08G18/48 |
主分类号 |
C08G18/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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