Rigid polyurethane foams having a closed cell content higher than 85 %, a core density of below 32 kg/m<3> and a dimensional stability, expressed as the sum of the absolute values of the relative linear changes in the three dimensions after exposure to -20 DEG C for 14 days, of below 15 %.
申请公布号
EP0787164(A1)
申请公布日期
1997.08.06
申请号
EP19950933377
申请日期
1995.09.15
申请人
IMPERIAL CHEMICAL INDUSTRIES PLC
发明人
BIESMANS, GUY, LEON, JEAN, GHISLAIN;BARKER, MARTIN