Propanoic acid, 3-hydroxy-2-(hydroxymethyl)-2-methyl-, polymer with 1,4-cyclohexanedimethanol, dimethyl carbonate, 1,6-hexanediol, 1,1'-methylenebis[4-isocyanatocyclohexane] and 2,2'-[oxybis(methylene)]bis[2-ethyl-1,3-propanediol], 2-propenoate (ester), compd. with N,N-diethylethanamine