申请人:——
公开号:US20020173563A1
公开(公告)日:2002-11-21
The invention disclosed herein relates to an improved process for making elastomeric polyisoprene articles. In particular, the process of the invention is a system which produces synthetic polyisoprene articles exhibiting tensile strength properties similar to that of solvent-based processes using natural rubber latex. The process comprises an accelerator composition at the pre-cure stage comprising a dithiocarbamate, a thiazole and a guanidine compound. In a preferred embodiment, the accelerator composition comprises zinc diethyldithiocarbamate (ZDEC), zinc 2-mercaptobenzothiazole (ZMBT) and diphenyl guanidine (DPG), in conjunction with a stabilizer, such as sodium caseinate. The invention also includes an elastomeric polyisoprene product made by the process, such as a surgeon's glove.
本发明涉及一种制造弹性聚异戊二烯制品的改进工艺。特别是,本发明的工艺是一种生产合成聚异戊二烯制品的系统,其拉伸强度特性类似于使用天然橡胶胶乳的溶剂型工艺。该工艺在预固化阶段包含一种由二硫代氨基甲酸盐、噻唑和胍类化合物组成的促进剂组合物。在一个优选的实施方案中,促进剂组合物包括二乙基二硫代氨基甲酸锌(ZDEC)、2-巯基苯并噻唑锌(ZMBT)和二苯基胍(DPG),以及稳定剂,如酪蛋白酸钠。本发明还包括用该工艺制作的弹性聚异戊二烯产品,如外科医生手套。