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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 that the 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. (en)
- 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 that the 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.
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Title
| - Method of recycling waste polyurethane foams
- Method of recycling waste polyurethane foams (en)
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skos:prefLabel
| - Method of recycling waste polyurethane foams
- Method of recycling waste polyurethane foams (en)
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skos:notation
| - RIV/67985858:_____/14:00438317!RIV15-GA0-67985858
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - P(2B06097), P(GA104/08/0416), Z(AV0Z40500505), Z(AV0Z40720504)
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http://linked.open...cisloPatentuVzoru
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http://linked.open...eleniPatentuVzoru
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/67985858:_____/14:00438317
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - recycling; waste; polyurethane foams (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...ontrolniKodProRIV
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http://linked.open.../licencniPoplatek
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http://linked.open...ydaniPatentuVzoru
| - Munich, The Hague, Berlin, Vienna, Brussels
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http://linked.open...atelePatentuVzoru
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...iv/tvurceVysledku
| - Horák, Zdeněk
- Kruliš, Zdeněk
- Hájek, Milan
- Beneš, Hynek
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http://linked.open...mniOchranaPatentu
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http://linked.open...avai/riv/vlastnik
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http://linked.open...itiJinymSubjektem
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http://linked.open...uzitiPatentuVzoru
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http://linked.open...n/vavai/riv/zamer
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http://linked.open...stnikPatentuVzoru
| - Ústav makromolekulární chemie AV ČR, v. v. i. - Ústav chemických procesů AV ČR, v. v. i
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