The Modification of Polyurethane Foams Using New Boroorganic Polyols (II) Polyurethane Foams from Boron-Modified Hydroxypropyl Urea Derivatives

Table 4

Impact of polyol composition on foaming process.

Polyol type	Foam type	Composition (g/100 g of polyol)			Foaming process
		Isocyanate*	Water	Catalyst**	Time (s)
					Creaming	Expanding	Drying
PA1	FA1	268	3	1.73	32	90	10
PA2	FA2	184	4	2.30	37	91	90
PA3	FA3	144	2	2.30	27	77	120
PB1	FB1	300	4	2.59	15	90	10
PB2	FB2	200	6	4.61	16	45	45
PB3	FB3	160	3	4.03	20	70	68
PC1	FC1	220	2	1.54	10	10	1
PC2	FC2	144	2	2.11	15	34	1
PC3	FC3	112	2	2.16	12	83	1

∗4,4′-diphenylmethane diisocyanate; **triethylamine; creaming time: time from start of stirring to start of growth; expanding time: time from start of growth to obtaining final dimensions; drying time: time from the end of foam growth to lack of adhesion of powder materials.