公开(公告)号：US20140288201A1

公开(公告)日：2014-09-25

申请号：US13981303

申请日：2012-01-26

申请人： Aster De Schrijver ,  Joao Moura Bordado ,  Georgi Goerigev

发明人： Aster De Schrijver ,  Joao Moura Bordado ,  Georgi Goerigev

IPC分类号： C08G18/76 ,  C08G18/08 ,  C08K5/521

CPC分类号： C08G18/7671 ,  C08G18/10 ,  C08G18/14 ,  C08G18/7621 ,  C08G18/7664 ,  C08G2101/00 ,  C08G2190/00 ,  C08K5/521 ,  C08G18/2825

摘要： A one component precursor for the polymeric foam (OCF) composition comprising a very low amount of free monomeric MDI. The present OCF composition may be obtained without any free MDI removal step, and without the addition of extra solvent to compensate for the substantially lower amount of free MDI, compared with traditional compositions. The present composition comprises a source of free NCO of functionality of at least 2.6, a tri- or higher functional alcohol, all polyols being characterized by a rather low molecular weight and at least a specific mono-functional alcohol as well as an isocyanate end-capped prepolymer of toluene diisocyanate (=end capped TDI). The OCF composition is suitable for being dispensed from a pressurized can with a blowing agent.

摘要翻译： 用于聚合物泡沫（OCF）组合物的单组分前体包含非常少量的游离单体MDI。 与传统组合物相比，可以在没有任何游离MDI去除步骤的情况下获得目前的OCF组合物，并且不添加额外的溶剂来​​补偿基本上较少量的游离MDI。 本发明组合物包含至少2.6的官能度的游离NCO源，三官能醇或更高级的官能醇，所有多元醇的特征在于相当低的分子量和至少一种特定的单官能醇以及异氰酸酯末端 - 甲苯二异氰酸酯（=封端TDI）的封端预聚物。 OCF组合物适合于用发泡剂从加压罐分配。