| 摘要 |
A process for the production of foams based on polyisocyanates by reacting polyisocyanates, compounds containing at least two hydrogen atoms which are reactive with isocyanate groups, blowing agents and optionally further additives, where a blowing agent is used which comprises at least 10 mol-% of one or more fluorinated ethers of the formula I… CaHbFc - O - CdHeFf where … … a = 1-6, … b = 1-12, … c = 1-12, … d = 1-2, … e = 0-5 and … f = 0-5. … |
