Preparation method of polyurethane resin
AssigneesNational Tsing Hua University, Chang Chun Plastics Co., Ltd., Chang Chun Petrochemical Co., Ltd.
InventorsDavid S. H. Wong, Kan-Nan Chan, Ping-Lin Yang, An-Pang Tu, En-Ko Lee
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Abstract
A preparation method of a polyurethane resin including the following steps is provided. A liquid polyamine compound is placed in a continuous reaction system, and the liquid polyamine compound is circulated in the continuous reaction system. A solid bis(cyclic carbonate) and a solid catalyst are placed in the continuous reaction system to mix the solid bis(cyclic carbonate), solid catalyst, and liquid polyamine compound to form a heterogeneous mixture. The heterogeneous mixture is heated in the continuous reaction system in a microwave manner, such that the heterogeneous mixture reacts to form a polyurethane resin.
Claims10
A preparation method of a polyurethane resin, comprising:
- placing a liquid polyamine compound in a continuous reaction system and circulating the liquid polyamine compound in the continuous reaction system;
- placing a solid bis(cyclic carbonate) and a solid catalyst in the continuous reactor system to mix the solid bis(cyclic carbonate), the solid catalyst, and the liquid polyamine compound to form a heterogeneous mixture;
- and
- heating the heterogeneous mixture in the continuous reaction system in a microwave manner, such that the heterogeneous mixture reacts to form a polyurethane resin.
Dependencies are inferred from the claim text.