Raw material for polyurethane production and process for its preparing from waste polyurethane

0423478 - ÚMCH 2014 RIV eng P - Patentový dokument
Vlček, T. - Beneš, Hynek - Kruliš, Zdeněk
Raw material for polyurethane production and process for its preparing from waste polyurethane.
2013. Vlastník: Ústav makromolekulární chemie AV ČR, v. v. i. Datum udělení patentu: 20.11.2013. Číslo patentu: EP2480584
Grant CEP: GA MPO 2A-2TP1/135
Výzkumný záměr: CEZ:AV0Z40500505
Klíčová slova: polyurethane * bioreagent * recycling
Kód oboru RIV: CD - Makromolekulární chemie
http://worldwide.espacenet.com/publicationDetails/originalDocument?FT=D&date=20141203&DB=worldwide.espacenet.com&locale=en_EP&CC=EP&NR=2480584B1&KC=B1&ND=4

Recycling of polyurethanes using bioreagents with functional hydroxy groups, when liquid products are obtained, which have a markedly lower hydroxyl number. This makes it possible to utilize them as a raw material for production of expanded and compact polyurethanes. By an appropriate choice of the bioreagent, the resulting functionality of the product, its hydroxyl number and reactivity depending on the content of primary and secondary alcoholic hydroxy groups and amino groups and thus to obtain a raw material for production of polyurethanes with optimum parameters according to the required applications.
Trvalý link: http://hdl.handle.net/11104/0230386