不使用增塑剂的软质树脂日本东亚合成化学工业最近研制成功聚胺脂和氯乙烯，共聚的软质树脂。日本氯乙烯产业受住宅建设不景气的影响和氯乙烯管道需要量下降及受廉价进口商品的威胁，该公司为寻求扩大氯乙烯的用途，提出了开发软质氯乙烯等特殊材料的课题。氯乙烯软质化技... Soft resin without plasticizer Japan East Asia Synthetic Chemical Industry recently developed polyamine and vinyl chloride, copolymerized soft resin. The vinyl chloride industry in Japan was challenged by housing downturn and the demand for vinyl chloride pipes was reduced and threatened by cheap imported goods. The company raised the issue of developing special materials such as soft vinyl chloride for the purpose of expanding the use of vinyl chloride. Vinyl chloride soft technology ...