EP3541860A1 - Method for producing polyol dispersions from polyurethane waste and use thereof - Google Patents
Method for producing polyol dispersions from polyurethane waste and use thereofInfo
- Publication number
- EP3541860A1 EP3541860A1 EP17801676.2A EP17801676A EP3541860A1 EP 3541860 A1 EP3541860 A1 EP 3541860A1 EP 17801676 A EP17801676 A EP 17801676A EP 3541860 A1 EP3541860 A1 EP 3541860A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- isocyanate
- reactive
- polyurethane
- reaction
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 79
- 239000004814 polyurethane Substances 0.000 title claims abstract description 79
- 229920005862 polyol Polymers 0.000 title claims abstract description 46
- 150000003077 polyols Chemical class 0.000 title claims abstract description 46
- 239000002699 waste material Substances 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000006185 dispersion Substances 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims description 40
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 27
- 238000002360 preparation method Methods 0.000 claims description 19
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 15
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 claims description 14
- 150000002009 diols Chemical class 0.000 claims description 14
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 13
- 239000011541 reaction mixture Substances 0.000 claims description 10
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 9
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 9
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 8
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims description 8
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 6
- 239000003999 initiator Substances 0.000 claims description 5
- 230000000977 initiatory effect Effects 0.000 claims description 5
- 238000010526 radical polymerization reaction Methods 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 150000001990 dicarboxylic acid derivatives Chemical group 0.000 claims description 4
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 4
- 239000011976 maleic acid Substances 0.000 claims description 4
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 4
- 239000001361 adipic acid Substances 0.000 claims description 3
- 235000011037 adipic acid Nutrition 0.000 claims description 3
- 239000010817 post-consumer waste Substances 0.000 claims description 3
- 229940083957 1,2-butanediol Drugs 0.000 claims description 2
- 239000001273 butane Substances 0.000 claims description 2
- BMRWNKZVCUKKSR-UHFFFAOYSA-N butane-1,2-diol Chemical compound CCC(O)CO BMRWNKZVCUKKSR-UHFFFAOYSA-N 0.000 claims description 2
- 125000001142 dicarboxylic acid group Chemical group 0.000 claims description 2
- 150000001451 organic peroxides Chemical class 0.000 claims description 2
- 239000001294 propane Substances 0.000 claims description 2
- 239000001384 succinic acid Substances 0.000 claims description 2
- 235000011187 glycerol Nutrition 0.000 claims 1
- 239000000376 reactant Substances 0.000 claims 1
- 229920005830 Polyurethane Foam Polymers 0.000 abstract description 13
- 239000011496 polyurethane foam Substances 0.000 abstract description 13
- 239000004815 dispersion polymer Substances 0.000 abstract 1
- 229920013730 reactive polymer Polymers 0.000 abstract 1
- 239000006260 foam Substances 0.000 description 16
- 239000002253 acid Substances 0.000 description 12
- 239000000047 product Substances 0.000 description 11
- 239000000203 mixture Substances 0.000 description 7
- 150000008064 anhydrides Chemical class 0.000 description 6
- 125000004432 carbon atom Chemical group C* 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 5
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 5
- 150000001412 amines Chemical class 0.000 description 5
- 239000007858 starting material Substances 0.000 description 5
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 4
- 230000034659 glycolysis Effects 0.000 description 4
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 4
- 239000004721 Polyphenylene oxide Substances 0.000 description 3
- 238000006136 alcoholysis reaction Methods 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 150000001991 dicarboxylic acids Chemical class 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 150000002978 peroxides Chemical class 0.000 description 3
- 229920000570 polyether Polymers 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000003797 solvolysis reaction Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- FALRKNHUBBKYCC-UHFFFAOYSA-N 2-(chloromethyl)pyridine-3-carbonitrile Chemical compound ClCC1=NC=CC=C1C#N FALRKNHUBBKYCC-UHFFFAOYSA-N 0.000 description 2
- KPYCVQASEGGKEG-UHFFFAOYSA-N 3-hydroxyoxolane-2,5-dione Chemical compound OC1CC(=O)OC1=O KPYCVQASEGGKEG-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 238000007098 aminolysis reaction Methods 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000002144 chemical decomposition reaction Methods 0.000 description 2
- 238000003776 cleavage reaction Methods 0.000 description 2
- VANNPISTIUFMLH-UHFFFAOYSA-N glutaric anhydride Chemical compound O=C1CCCC(=O)O1 VANNPISTIUFMLH-UHFFFAOYSA-N 0.000 description 2
- 150000002334 glycols Chemical class 0.000 description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 2
- 229920001228 polyisocyanate Polymers 0.000 description 2
- 239000005056 polyisocyanate Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000007017 scission Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229940014800 succinic anhydride Drugs 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- MIRQGKQPLPBZQM-UHFFFAOYSA-N 2-hydroperoxy-2,4,4-trimethylpentane Chemical compound CC(C)(C)CC(C)(C)OO MIRQGKQPLPBZQM-UHFFFAOYSA-N 0.000 description 1
- XRXANEMIFVRKLN-UHFFFAOYSA-N 2-hydroperoxy-2-methylbutane Chemical compound CCC(C)(C)OO XRXANEMIFVRKLN-UHFFFAOYSA-N 0.000 description 1
- FRIBMENBGGCKPD-UHFFFAOYSA-N 3-(2,3-dimethoxyphenyl)prop-2-enal Chemical compound COC1=CC=CC(C=CC=O)=C1OC FRIBMENBGGCKPD-UHFFFAOYSA-N 0.000 description 1
- 241000238876 Acari Species 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 238000005698 Diels-Alder reaction Methods 0.000 description 1
- 229920013702 Dow VORANOL™ CP 755 Polyol Polymers 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- 239000002841 Lewis acid Substances 0.000 description 1
- 229920005897 Lupranol® 3300 Polymers 0.000 description 1
- 229920002396 Polyurea Polymers 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- QHWKHLYUUZGSCW-UHFFFAOYSA-N Tetrabromophthalic anhydride Chemical compound BrC1=C(Br)C(Br)=C2C(=O)OC(=O)C2=C1Br QHWKHLYUUZGSCW-UHFFFAOYSA-N 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- -1 amine salts Chemical class 0.000 description 1
- 150000001414 amino alcohols Chemical class 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000012611 container material Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 150000003972 cyclic carboxylic anhydrides Chemical class 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- GKQPCPXONLDCMU-CCEZHUSRSA-N lacidipine Chemical compound CCOC(=O)C1=C(C)NC(C)=C(C(=O)OCC)C1C1=CC=CC=C1\C=C\C(=O)OC(C)(C)C GKQPCPXONLDCMU-CCEZHUSRSA-N 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 150000003142 primary aromatic amines Chemical class 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- AUHHYELHRWCWEZ-UHFFFAOYSA-N tetrachlorophthalic anhydride Chemical compound ClC1=C(Cl)C(Cl)=C2C(=O)OC(=O)C2=C1Cl AUHHYELHRWCWEZ-UHFFFAOYSA-N 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- 150000004072 triols Chemical class 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4829—Polyethers containing at least three hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/18—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
- C08J11/22—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds
- C08J11/24—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds containing hydroxyl groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/18—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
- C08J11/22—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds
- C08J11/26—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds containing carboxylic acid groups, their anhydrides or esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
- C08G2110/0016—Foam properties semi-rigid
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
- C08G2110/0025—Foam properties rigid
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
- C08J2375/08—Polyurethanes from polyethers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Definitions
- the present invention relates to a process for the preparation of isocyanate-reactive Polyoldispersionen from polyurethane wastes and the use of obtainable by the process according to the invention isocyanate-reactive Polyoldispersonen for the production of polyurethane materials. (especially
- the alcoholysis of PUR is based on an equilibrium reaction in which the stoichiometric amounts of hydroxyl groups in the form of diols and / or triols are required for the cleavage of the urethane groups.
- the catalysis of the reaction with glycols is described in DE 2 238 109 A, DE 2 557 172, DE 2 71 1 145 A and DE 2 834 431.
- As effective catalysts in the glycolysis were the typical transesterification catalysts, eg. As amino alcohols, metal carboxylates, hydroxides and alkoxides and Lewis acids found.
- the polyols prepared by the known alcoholysis process are suitable for the production of PUR rigid foams because of the higher hydroxyl equivalent, but the polyurethane waste must be sorted by chemical composition.
- a rapid reaction takes place at a comparatively low temperature.
- two phases are formed in the reaction mixture - a low viscosity polyol phase and a hard oligourea phase.
- the polyol phase can be reacted directly with a di- and / or polyisocyanate to give a product which is very similar to the original polyurethane.
- a cold forming flexible foam can again be prepared by simple reaction of the resulting polyol phase with water and a polyaryl polyisocyanate.
- the lower phase consisting of oligourea (about 40%), is unfortunately useless (without further reaction steps).
- the process of DE 195 12 778 C1 leads to isocyanate-reactive polyol dispersions which, although they already have a relatively low hydroxyl number, still have a comparatively high acid number of always more than 5 mg KOH / g.
- an acid number of more than about 2 mg KOH / g entails the risk of a negative effect on the blowing and gel catalysts necessary for the recovery of polyurethane slab soft foam, right up to their blocking.
- the recyclate polyols described in DE 195 12 778 C1 are therefore disadvantageous.
- DE102013106364A1 describes a process for preparing a polyurethane slabstock by acidolysis of polyurethane waste in a reaction with at least one dicarboxylic acid anhydride and a dripped polyol.
- a special duplex steel is used for this purpose.
- the present invention is also based on the object, a new process for the preparation of stable isocyanate-reactive recycling polyols by chemical degradation of mixed post-consumer polyurethane waste, in which the recycled polyols are particularly suitable for the production of rigid polyurethane foams. It was preferred to overcome one, several or all of the above-described disadvantages of the prior art.
- Polyurethane mattress waste from the post-consumer sector in the presence of polyetherols characterized in that in a first reaction step a) the polyurethane waste first with a reaction mixture containing at least one dicarboxylic acid or a dicarboxylic acid derivative, in particular a dicarboxylic anhydride and at least one polyetherol ( Poletherpolyol) having an average molecular weight of 400 to 6000 g / mol and a hydroxyl functionality of 2 to 4, and preferably at least one radical initiator suitable for initiating a radical polymerization at temperatures of 170 ° C to 210 ° C, preferably to 200 ° C, further preferably 175 ° C to 190 ° C to form a dispersion; and in a second reaction step b) the dispersion obtained under a) with at least one short-chain diol having 2 to 8 carbon atoms and / or a short-chain triol having 2 to 8 carbon atoms at temperatures of 180 °
- Waste from the post-consumer sector in the context of the present invention are, in particular, polyurethane materials intended for disposal by the end user.
- these materials include polyurethane foam (PUR), highly elastic PUR (HR) foam, PUR viscoelastic foam, and / or others PUR foams.
- post-consumer polyurethane waste may be waste of the appropriate composition which has been used by the end user in any suitable function, or could have been used by an end-user.
- Preferred polyurethane wastes are those derived from upholstery, upholstery and most preferably mattresses. Particularly preferred polyurethane wastes within the meaning of the present invention are also complete or largely complete mattresses.
- the process according to the invention is a process which can be referred to as acidolysis followed by glycolysis (combined acydolysis glycolysis) for the preparation of isocyanate-reactive recycled polyols from polyurethane waste in the presence of polyetherols, in which the mixed polyurethane post -Consumer- waste with a reaction mixture containing at least one dicarboxylic anhydride and at least one grafted polyetherol having a molecular weight from 400 to 6000, preferably 400 to 4000 and more preferably 500 to 3000 g / mol and a hydroxyl functionality of 2 to 4 and preferably at least one for initiation a free-radical polymerization suitable radical generator converts.
- Recyclatpolyole (recycled polyols) are obtained, which contain only a very small amount of unreacted acid groups, which z.
- step b) in the process according to the invention runs partly parallel to step a).
- recycled polyols are obtained whose hydroxyl equivalent or hydroxyl functionality is in the range of the polyetherols which can be used for the preparation of harder crosslinked rigid polyurethane foams.
- Particularly suitable for the process according to the invention are all wastes of polyurethanes based on soft to semi-hard polyurethanes from the post-consumer sector. These may optionally be polyurethanes blended with other polymers and / or fillers, for example polyether or polyester based, as well as polyureas and their copolymers.
- the process and application aspects of the polyurethanes used - for example, whether filler and additive containing, massive or foamed - are arbitrary for the inventive method.
- Soft polyurethanes for the purposes of the present invention are those which have an open cell structure, a hardness of 300 to 500 N at 40% load measured according to SS-EN ISO 2439: 2008 (E) and an elasticity of 25 to 60% ( measured according to EN ISO 8307).
- Semi-hard urethanes are materials with an open cell structure, but have a compressive strength of at least 100 kPa measured according to EN ISO 844: 2009).
- the process according to the invention is also suitable for polyurethanes which are associated with thermoplastics, such as polyolefins, ABS or PVC, and which are difficult to separate from them. Such thermoplastics can be filtered out of the recycled polyol after conversion.
- the abovementioned polyurethane wastes are preferably used, based on the total mass of all constituents (starting materials) used in step a) of the process according to the invention, in a total amount of 35 to 60% by weight, preferably 35 to 45% by weight.
- dicarboxylic acids and / or dicarboxylic anhydrides preference is given to using dicarboxylic acids and / or dicarboxylic anhydrides, including cyclic dicarboxylic acid anhydrides, in the process according to the invention.
- These decomposition agents are preferably selected from adipic acid, succinic anhydride, glutaric anhydride, malic anhydride, phthalic anhydride, maleic anhydride, dihalogenated and tetrahalogenated phthalic anhydrides, for example di- and tetrachlorophthalic anhydride or di- and tetrabromophthalic anhydride. According to the invention, mixtures of these compounds can also be used.
- dicarboxylic acid selected from the group consisting of adipic acid, maleic acid, phthalic acid and succinic acid and derivatives thereof.
- the abovementioned dicarboxylic acid anhydrides and / or dicarboxylic acid anhydrides formed in situ from the dicarboxylic acids and / or derivatives thereof which are based on these anhydrides are preferably used in a total amount of from 5 to 25% by weight, preferably from 10 to 25% by weight, based on the total mass the starting materials in step a) of the process according to the invention.
- To initiate or accelerate the chemical reaction of polyurethane groups with said dicarboxylic acid anhydrides i.
- a free-radical initiator suitable for initiating free-radical polymerization is preferred.
- suitable free-radical initiators it is possible with preference to add customary peroxidic compounds.
- a peroxidic compound may be an inorganic peroxide, preferably hydrogen peroxide, and / or an organic peroxide, preferably tert-butyl hydroperoxide, tert-amyl hydroperoxide, 1,1,3,3-tetramethylbutyl hydroperoxide and / or cumene hydroperoxide, be.
- the abovementioned peroxides are used together in a total amount of from 0.1 to 5% by weight, preferably from 2 to 5% by weight, based on the total mass of the starting materials in step a) and b) of the process according to the invention.
- the hydroxyl equivalent or the hydroxyl functionality of the recyclate polyol is preferably adjusted or increased.
- an amount of at least one short-chain diol and / or short-chain triol is added to the reaction mixture in step b), in particular to bind any residual amounts of acid groups that may still be present.
- the term short-chain diol and / or triol here means in particular a diol and / or a triol having 2 to 8 carbon atoms, in the case of the triol preferably 3 to 8 carbon atoms.
- the short-chain diol and / or triol may preferably be selected from the group consisting of ethylene glycol (glycol), dipropylene glycol, 1, 3-propane glycol, 1, 2-butanediol, 1, 4-butane glycol and glycerol.
- the diol and / or triol is selected from the group consisting of ethylene glycol (glycol), dipropylene glycol and glycerol.
- the dispersion obtained is used in a total amount of from 1.0 to 30% by weight and more preferably from 3 to 12% by weight, based in each case on the educts used in step b) of the process according to the invention, at least one short-chain diol and / or at least one short chain triol, ie a diol and / or triol as mentioned above, to a, in particular ready to use, isocyanate-reactive Polyoldispersion implemented.
- the process according to the invention takes place at least in reaction step a) in a container made of stainless steel.
- reaction step a) uses the post-consumer polyurethane waste in a total amount of 30 to 60 wt .-% and / or the at least one polyetherol in a total amount of 20 to 45 wt .-%, preferably having a molecular weight of 400 to 3000 g / mol and a hydroxyl functionality of 2 to 4 and / or the at least one dicarboxylic acid or the at least one dicarboxylic acid derivative, especially as dicarboxylic anhydride in a total amount of 5 to 25 wt .-%; and / or the at least one free-radical initiator suitable for initiating a free-radical polymerization, preferably a peroxide in a total amount of from 0.1 to 5% by weight and / or the dis
- polyurethane post-consumer waste in reaction step a) is introduced into the reaction mixture heated to 175 ° C. to 190 ° C. such that the temperature during the reaction in reaction step a) is between 185 ° C. up to 195 ° C is maintained.
- Part of the invention is also the use of an obtainable by a process according to the invention isocyanate-reactive Polyoldispersion for the production of polyurethane materials, preferably rigid polyurethane foam materials, preferably the polyol obtainable from the process according to the invention (Recyclatpolyol) with a base polyol (newly produced, so unrecycled polyol) in the ratio of 10 to 90 to 40 to 60 is used.
- polyurethane rigid foam materials are those materials which have a closed cell structure and a compressive strength of at least 100 kPa in the region of the polyurethane, measured in accordance with EN ISO 844: 2009).
- An embodiment of the process according to the invention for the preparation of isocyanate-reactive polyol dispersions is characterized in that, after the reaction mixture has been reacted with the polyurethane waste, the resulting dispersion is heated to temperatures of up to 230.degree.
- reaction apparatus When choosing the reaction apparatus and equipment, it should be noted that solvolysis takes place in the presence of acids and oxidants. Accordingly, it is preferred that the entire reaction device and periphery be made of corrosion and acid resistant stainless steel.
- the product had the following characteristics: (Specification)
- Viscosity 2,400 m Pa s at 25 ° C, measured according to DIN 53019
- a stainless steel reactor 35 wt .-% of a long-chain polyether triol (Lupranol® 3300, BASF) having an average molecular weight of 420 g / mol together with 14% by weight of phthalic acid, 1 wt .-% maleic acid, 1 wt .-% Acrylic acid and an amount of 3 wt .-% tert-butyl hydroperoxide (PEROXAN BHP-70 - PERGAN GmbH) and heated to 180 ° C within 120 minutes.
- a long-chain polyether triol Liupranol® 3300, BASF
- the product has the following property picture:
- Viscosity 4,500 m Pa s at 25 ° C,
- Foam tests for the production of rigid polyurethane foam panels using recyclate polyols prepared according to the invention were carried out several times. In these foam tests, polyols in the ratio by weight of hard foam base polyol / recycled polyol (Example 1 or 2) from 90/10 to 60/40 were used. Conventional formulations for the production of rigid polyurethane foam panels were used and 7 industrial foaming tests were carried out with a density of 28 kg / m 3 to 60 kg / m 3 .
- PUR hard foam panels could be produced without the properties of the polyurethane products made from base polyol / recyclate polyol being correspondingly disadvantageously changed compared to corresponding original PUR products, that is to PUR products without the addition of recycled polyol.
- the properties of the panels such as compressive strength, dimensional stability and thermal conductivity of the products were therefore comparable or equivalent.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Polyurethanes Or Polyureas (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102016122275.5A DE102016122275B4 (en) | 2016-11-18 | 2016-11-18 | Process for the production of polyol dispersions from polyurethane waste and their use |
PCT/EP2017/079399 WO2018091568A1 (en) | 2016-11-18 | 2017-11-16 | Method for producing polyol dispersions from polyurethane waste and use thereof |
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EP3541860A1 true EP3541860A1 (en) | 2019-09-25 |
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EP17801676.2A Pending EP3541860A1 (en) | 2016-11-18 | 2017-11-16 | Method for producing polyol dispersions from polyurethane waste and use thereof |
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US (1) | US11124623B2 (en) |
EP (1) | EP3541860A1 (en) |
KR (1) | KR102433229B1 (en) |
DE (1) | DE102016122275B4 (en) |
RU (1) | RU2745870C2 (en) |
WO (1) | WO2018091568A1 (en) |
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DE102016122276A1 (en) | 2016-11-18 | 2018-05-24 | H & S Anlagentechnik Gmbh | recycling polyol |
KR102300038B1 (en) * | 2019-11-15 | 2021-09-08 | 에스케이씨솔믹스 주식회사 | Polyol composition recycled from polishing pad and preparation method thereof |
KR102298116B1 (en) * | 2019-11-18 | 2021-09-03 | 미쓰이케미칼앤드에스케이씨폴리우레탄 주식회사 | Manufacturing method for polyol using waste polyurethane |
DE102020126425A1 (en) | 2020-10-08 | 2022-04-14 | H & S Anlagentechnik Gmbh | Process for producing a polyol composition containing polyols released from polyurethane waste |
CA3200708A1 (en) * | 2020-11-20 | 2022-05-27 | Huntsman International Llc | Upgraded stabilized polyol composition |
WO2023078802A1 (en) | 2021-11-03 | 2023-05-11 | Evonik Operations Gmbh | New method for recycling of polyurethane |
WO2023095951A1 (en) * | 2021-11-25 | 2023-06-01 | 정우화인 주식회사 | Polyurethane-dispersed polymeric polyol using soft polyurethane scraps and preparation method therefor |
WO2023203183A1 (en) | 2022-04-22 | 2023-10-26 | Repsol, S.A. | Dispersant for producing polyol dispersions from polyurethane waste and uses thereof |
EP4323417A1 (en) | 2022-04-22 | 2024-02-21 | Repsol, S.A. | Dispersant for producing polyol dispersions from polyurethane waste |
FR3135720A1 (en) * | 2022-05-23 | 2023-11-24 | Faurecia Sièges d'Automobile | Recycling polyol produced from molded polyurethane foam |
CN115260579B (en) * | 2022-08-12 | 2023-09-05 | 浙江工业大学 | Application of metal compound catalyst in catalyzing acidolysis reaction of waste polyurethane foam |
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US3738946A (en) | 1971-08-05 | 1973-06-12 | Upjohn Co | Conversion of scrap polyurethane foam to polyol |
JPS5117297A (en) | 1974-08-02 | 1976-02-12 | Bridgestone Tire Co Ltd | Horiooruo horiuretanjugobutsukara kaishusuruhoho |
JPS5171381A (en) | 1974-12-19 | 1976-06-21 | Bridgestone Tire Co Ltd | Horiuretanfuoomuno bunkaikaishuho |
US4035314A (en) | 1975-06-02 | 1977-07-12 | The Firestone Tire & Rubber Company | Recovery of polyurethane prepolymer and amine salt |
DE2711145A1 (en) | 1977-03-15 | 1978-09-21 | Bayer Ag | PROCESS FOR CLEAVING POLYURETHANE PLASTICS |
DE2834431C3 (en) | 1978-08-05 | 1981-05-14 | Th. Goldschmidt Ag, 4300 Essen | Process for the gentle processing of waste from organic polyadducts containing urethane and / or urea groups |
DE3370004D1 (en) | 1983-03-16 | 1987-04-09 | Olin Corp | Preparation of carboxylic acid-containing monoether or polyether polyol addition products, and polyurethane prepolymers derived therefrom |
DE3435014C2 (en) | 1984-09-24 | 1986-10-09 | Gunter Dr. 7080 Aalen Bauer | Process for the production of polyol-containing liquids by converting polymer waste |
DE4024601C2 (en) * | 1990-08-02 | 1997-04-03 | Gunter Prof Dr Bauer | Process for the preparation of polyol-containing dispersions and their use |
DE19510638A1 (en) * | 1995-03-23 | 1996-09-26 | Basf Schwarzheide Gmbh | Process for recycling plastic waste in which polyurethanes are mixed with other plastics |
DE19512778C1 (en) | 1995-04-05 | 1996-12-05 | Gunter Prof Dr Bauer | Prodn. of isocyanate-reactive poly:ol dispersion from waste polyurethane |
RU2143442C1 (en) * | 1998-04-29 | 1999-12-27 | Бакирова Индира Наилевна | Hydroxyl-containing composition for preparing elastic polyurethane foam |
RU2304593C1 (en) * | 2005-12-26 | 2007-08-20 | Леонид Николаевич Гавриленко | Method of production of the polyol component for production of the polyurethane foam |
DE102013106364B4 (en) | 2013-06-18 | 2015-04-09 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Process for producing a polyurethane block foam |
CN103756285B (en) * | 2014-01-08 | 2016-06-08 | 上海应用技术学院 | A kind of method for preparing polyurethane elastic body with high-wearing feature |
US10273332B2 (en) | 2014-05-05 | 2019-04-30 | Resinate Materials Group, Inc. | Recycle-content polyester polyols |
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2016
- 2016-11-18 DE DE102016122275.5A patent/DE102016122275B4/en active Active
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- 2017-11-16 WO PCT/EP2017/079399 patent/WO2018091568A1/en unknown
- 2017-11-16 KR KR1020197017456A patent/KR102433229B1/en active IP Right Grant
- 2017-11-16 EP EP17801676.2A patent/EP3541860A1/en active Pending
- 2017-11-16 US US16/461,679 patent/US11124623B2/en active Active
- 2017-11-16 RU RU2019118622A patent/RU2745870C2/en active
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KR102433229B1 (en) | 2022-08-17 |
RU2745870C2 (en) | 2021-04-02 |
RU2019118622A (en) | 2020-12-18 |
DE102016122275B4 (en) | 2020-04-02 |
DE102016122275A1 (en) | 2018-05-24 |
US11124623B2 (en) | 2021-09-21 |
WO2018091568A1 (en) | 2018-05-24 |
KR20190082931A (en) | 2019-07-10 |
US20210017354A1 (en) | 2021-01-21 |
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