Mbiri ya Polyurethane(PU) zakuthupi ndi zinthu

Yakhazikitsidwa ndi Bambo Wurtz & Bambo Hofmann mu 1849, yomwe ikukula mu 1957, Polyurethane inakhala zinthu zomwe zimagwiritsidwa ntchito m'mafakitale osiyanasiyana.Kuchokera kumlengalenga kupita ku mafakitale ndi ulimi.

Chifukwa chodziwika bwino chazofewa, zowoneka bwino, zowoneka bwino kwambiri, zosagwirizana ndi hydrolyze, zosazizira komanso zotentha, zosamva kuvala, Heart To Heart idayamba kuiphunzira mu 1994 ndikuipanga kuti igwiritsidwe ntchito m'zipinda zapabafa, makamaka m'bafa yofewa yophimba. kufooka kwa bafa zinthu zolimba monga akiliriki, galasi ndi zitsulo kuteteza anthu ndi kuonjezera chisangalalo kusamba kapena kusamba.Kupatula kugwiritsa ntchito ku bafa, zinthu za PU zilinsokugwiritsa ntchito bwinomu zida zachipatala, zida zamasewera, mipando ndi magalimoto etc.