Reactions of N,N^′-bis(2-hydroxyethyl)oxalamide with Ethylene Carbonate and Use of the Obtained Products as Components of Polyurethanes Foams

Table 6

Compressive strength of polyurethane foams (MPa).

Kind of polyol	Comp. no.	Compressive strength 𝜎M (MPa)	Increase of Compressive Strength in (%) after exposition in temperature (∘C)
			150	175
EC6	1.	0.14	112	5
EC10	2.	0.16	115	2