发明授权
US06147181A Two step procedure for the production of semi-hard solid polyurethane molded bodies 失效
用于生产半硬质固体聚氨酯成型体的两步法

Two step procedure for the production of semi-hard solid polyurethane
molded bodies
摘要:
The invention relates to a process for preparing solid, transparent to translucent polyurethane molded items which, due to their elastic and optical properties, can be used, for instance, as an alternative material to rubber.
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