Process for preparing integral skin microcellular polyester base polyurethane elastomers, the elastomers per se isocyanate curable compositions and two component combinations for producing the elastomers and cast shoe soles attached to shoe uppers
申请人:PLASTICS TECHNOLOGY ASSOCIATES, INC.
公开号:EP0035389A2
公开(公告)日:1981-09-09
Synthesis of integral skinmicrocellular polyurethane elastomers by reacting hydroxyl-terminated aliphatic polyesters with symmetrical diisocyanates, prepolymers of these isocyanates such as derived form p,p'-diphenylmethane diisocyanate and an aliphatic glycol and mixtures thereof, these are polymerized in the presence of an organic blowing agent, and one or more plasticizers such as of the formulae
and
further enhancement of the results is brought about by the presence of catalysts and cell regulating agents, such as dimethylpolysiloxanes; the obtained elastomers are useful, such as for shoe soles and in the manufacture of other products, e.g., vibration dampening devices, floatation devices, gaskets and the like.
通过使羟基封端脂肪族聚酯与对称二异氰酸酯、这些异氰酸酯的预聚物(如 p,p'-二苯基甲烷二异氰酸酯和脂肪族乙二醇及其混合物)反应,合成整体皮膜微孔聚氨酯弹性体。
和
催化剂和细胞调节剂(如二甲基聚硅氧烷)的存在可进一步提高效果;获得的弹性体可用于鞋底和制造其他产品,如减震装置、漂浮装置、垫圈等。