Method of recycling waste polyurethane foams
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F14%3A00438317" target="_blank" >RIV/61389013:_____/14:00438317 - isvavai.cz</a>
Alternative codes found
RIV/67985858:_____/14:00438317
Result on the web
<a href="http://worldwide.espacenet.com/publicationDetails/originalDocument?FT=D&date=20141203&DB=worldwide.espacenet.com&locale=en_EP&CC=EP&NR=2183311B1&KC=B1&ND=4" target="_blank" >http://worldwide.espacenet.com/publicationDetails/originalDocument?FT=D&date=20141203&DB=worldwide.espacenet.com&locale=en_EP&CC=EP&NR=2183311B1&KC=B1&ND=4</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Method of recycling waste polyurethane foams
Original language description
The present invention relates to a process for recycling waste polyurethane foams, produced by reacting polyester and/or polyether polyols with aromatic polyfunctional isocyanates, to a homogeneous single-phase liquid polyol mixture characterized in thatthe waste polyurethane is decomposed by the reaction with a low- molecular-weight polyhydric alcohol selected from the group consisting of ethylene glycol, propylene glycol, butanediol, pentanediol, hexanediol, 2-methylpropane-l,3-diol, diethylene glycol, dipropylene glycol, triethylene glycol, tripropylene glycol, trimethylolpropane (2,2- bis(hydroxymethyl)propan-l-ol), glycerol or their mixtures under the condition that the waste polyurethane and polyhydric alcohol are used in the weight ratio at least 3:1 and at the most 1:3 and the reaction mixture is subjected to the action of electromagnetic radiation of a frequency ranging from 1 MHz to 10 GHz at the temperature ranging from 50 to 300 degC.
Czech name
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Czech description
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Classification
Type
P - Patent
CEP classification
CD - Macromolecular chemistry
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Patent/design ID
EP2183311
Publisher
EPO_1 -
Publisher name
European Patent Office
Place of publication
Munich, The Hague, Berlin, Vienna, Brussels
Publication country
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Date of acceptance
Dec 3, 2014
Owner name
Ústav makromolekulární chemie AV ČR, v. v. i. - Ústav chemických procesů AV ČR, v. v. i
Method of use
A - Výsledek využívá pouze poskytovatel
Usage type
A - K využití výsledku jiným subjektem je vždy nutné nabytí licence