To provide a manufacturing method for frothing hard polyurethane foam for enabling complete no use of fluorocarbon in foaming at production site by using the inactive gas compressed or liquefied as a foaming agent and as a fluorocarbon substitute and using the facilities conforming to the High Pressure Gas Safety Law and to provide an application method for a hard polyurethane foam thermal insulation layer.
In this manufacturing method for the frothing hard polyurethane foam, a foaming polyol composition containing the foaming agent and a polyisocyanate composition are mixed by a pouring or spraying device and are discharged, the foaming agent is the inactive gas, and the inactive gas is supplied at fixed flow rate by using a pressure reducing valve for reducing and adjusting pressure of the inactive gas and a needle valve for adjusting flow rate of the inactive gas and is mixed with a polyol composition fed volumetrically to obtain the foaming polyol compound.
| JP2009007530A | 2009-01-15 | |||
| JP2008133364A | 2008-06-12 | |||
| JP2008115257A | 2008-05-22 | |||
| JP2009102516A | 2009-05-14 | |||
| JP2009051997A | 2009-03-12 | |||
| JP2007077207A | 2007-03-29 | |||
| JP2007320991A | 2007-12-13 | |||
| JPS5818234A | 1983-02-02 | |||
| JP2001329035A | 2001-11-27 | |||
| JP2009007530A | 2009-01-15 | |||
| JP2008133364A | 2008-06-12 | |||
| JP2008115257A | 2008-05-22 | |||
| JP2009102516A | 2009-05-14 | |||
| JP2009051997A | 2009-03-12 | |||
| JP2007077207A | 2007-03-29 | |||
| JP2007320991A | 2007-12-13 | |||
| JP2008184605A | 2008-08-14 | |||
| JPS5537326A | 1980-03-15 | |||
| JPS50103598A | 1975-08-15 |
| WO2010082318A1 | 2010-07-22 |
Koichi Kajisaki
Toshihiko Taniguchi