申请人:Olin Corporation
公开号:US04871861A1
公开(公告)日:1989-10-03
In a process for the production of cellular products comprising thermoplastic or rubber materials the blowing agents employed have the formula: ##STR1## wherein A represents NHX, NRR' or OR X represents H or a lower alkyl group, R represents a lower alkyl group, and R' represents a lower alkyl group. The novel blowing agents provide high gas yields and have high decomposition temperatures while forming only inert nitrogen gas. They are particularly suitable for the production of cellular products from high temperature thermoplastic materials such as polycarbonates.
在生产包括热塑性或橡胶材料的细胞产品的过程中,所使用的发泡剂具有以下化学式:##STR1## 其中A代表NHX,NRR'或OR,X代表H或较低的烷基,R代表较低的烷基,R'代表较低的烷基。这种新型发泡剂提供了高气体产量,并具有高分解温度,同时只形成惰性氮气。它们特别适用于从高温热塑性材料(如聚碳酸酯)生产细胞产品。