Experimental results show that properties of PU foams made of polyether polyols and polyisocyanate(PAPI) with six functional groups are the best.

结果表明：以六官能团的聚醚多元醇和有机多异氰酸酯（PAPI）制得的PU结构泡沫力学性能最优；

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The unblocking reaction of blocked PAPI at different temperature is studied with IR spectrometry, the initial and final dissociation temperatures are investigated.

应用红外光谱法研究了封闭PAPI在不同温度下的解封反应，考察了其起始解封温度及完全解封温度。

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Others share his ambition: Papi is so concerned with preserving tradition that he has written a book dedicated to the importance of hand-finishing watches.

WSJ: Keeping Time With Master Watchmakers