申请人:Olin Corporation
公开号:US04774266A1
公开(公告)日:1988-09-27
A process for the production of cellular products which comprises incorporating a blowing agent into rubber or a thermoplastic material uses as the blowing agent a tetrazole compound represented by the formula: ##STR1## in which R represents an alkyl, cycloalkyl, hydroxyalkyl, polyhydroxyalkyl, aryl, alkylaryl, aralkylene, alkenyl, alkenylaryl or alkenylaralkylene group. The novel blowing agents of the present invention include compounds which are liquids which may be directly incorporated into the molten rubber or thermoplastic material. The blowing agents of this invention are especially useful, as indicated, with polymers and copolymers that have high processing temperatures as they minimize polymer degradation and provide products with increased impact strengths.
一种生产细胞产品的方法,包括将一种发泡剂纳入橡胶或热塑性材料中,所使用的发泡剂是由式子所表示的四唑化合物:##STR1## 其中 R 代表烷基、环烷基、羟基烷基、多羟基烷基、芳基、烷基芳基、芳基烷基、烯基、烯基芳基或烯基芳基烷基基团。本发明的新型发泡剂包括液态化合物,可以直接纳入熔融的橡胶或热塑性材料中。本发明的发泡剂特别适用于高加工温度的聚合物和共聚物,因为它们可以最小化聚合物降解并提供具有增强冲击强度的产品。