| 摘要 |
One of compds. I, II and III (R1 = C10-24 alkyl; X,X1 = H, substitutable C1-24 alkyl; -(R4O)m- contg. substitute; R4 = C1-4 alkylene; m = integer 1-10; R2 = C9-23 alkyl; Y,Y1 = H, C1-24 alkyl, C10-24 acyl, -(R4O)m- contg. substitute; [R3 =C9-23 alkyl, hydroxyalkyl; K = integer 0-7; l= integer 2-8; Z = l-valent residue of polyvalent alcohol) 0.1-10 wt.% on the basis of thermoplastic resin was mixed with foaming agent at 15-300≦̸C and expanded to give foamed thermoplastics.
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