Improved feeding of PU foam recycling reactors

Abstract

The present invention is directed to a process for treating a composition (PC) comprising at least one polymer (P1), comprising providing a composition (PC) comprising at least one polymer (P1); and mixing the composition (PC) with a composition (CS) comprising at least one component (C1) selected from the group consisting of polar, organic solvents, to obtain a heterogeneous mixture (M1); wherein the bulk density of mixture (M1) is in the range of from 200 to 1200 g / l determined according to DIN ISO 697. The present invention is also directed to the composition (C2) comprising at least one polymer (P1) and at least one component (C1) selected from polar organic solvents and / or polymer product obtained or obtainable by said process as well as the use thereof in a melt-emulsification process.

Description

240288W001Improved feeding of PU Foam Recycling ReactorsThe present invention is directed to a process for treating a composition (PC) comprising at least one polymer (P1 ), comprising providing a composition (PC) comprising at least one polymer (P1); and mixing the composition (PC) with a composition (CS) comprising at least one component (C 1) selected from the group consisting of polar, organic solvents, to obtain a heterogeneous mixture (M1); wherein the bulk density of mixture (M1) is in the range of from 200 to 1200 g / l determined according to DIN ISO 697. The present invention is also directed to the composition (C2) comprising at least one polymer (P1) and at least one component (C1) selected from polar organic solvents and / or polymer product obtained or obtainable by said process as well as the use thereof in a melt-emulsification process.Waste disposal and recycling is an important aspect for the chemical industry and in particular for polyurethane foams. The extensive industrial use of polyurethane materials and the production thereof is accompanied by a considerable accumulation of waste or scrap of these polyurethane materials. A large quantity of polyurethane material scrap is generated during the slabstock manufacturing process. In such operations, from 10% to about 30% of the virgin polyurethane materials may end up as scrap. This scrap polyurethane material may be reused, for instance by grinding it to polyurethane powder and adding this powder as a filler in the polyurethane formulation, or in a rebonding process wherein the waste foam fragments are bonded to each other by means of a binder to produce carpet underlays, pillow fillings or athletic mats.The largest amount of polyurethane material scrap, however, is constituted by end of life (EoL) polyurethane foam. The main waste processing technologies for this EoL polyurethane foam include incineration and landfill. But besides representing an environmental pollution problem, such disposal techniques have an economic loss associated with both the land required for landfill and the permanent loss of costly materials used in the preparation of polyurethane materials. Therefore, the main interest is to consider the recovery and eventual reuse of such materials.Several processes for chemical recycling of polymer waste, in particular polyurethane foams have been developed. Typically, polymer waste is cut into smaller particles to allow for easier processing. However, the feeding of PU foam in recycling reactors is a challenging process due to the foams low bulk density. Especially for recycling processes which require a well defined ratio of the polyurethane waste and other components used, it is often difficult to use the shredded foams.It was therefore an object of the present invention to provide a process which allows for easier handling and storage of polymeric waste material.According to the present invention, this object has been solved by a process for treating a composition (PC) comprising at least one polymer (P1), comprising(I) providing a composition (PC) comprising at least one polymer (P1);240288W001- 2 -(ii) mixing the composition (PC) with a composition (CS) comprising at least one component (C1) selected from the group consisting of polar, organic solvents, to obtain a heterogeneous mixture (M1); wherein the bulk density of mixture (M1) is in the range of from 200 to 1200 g / l determined according to DIN ISO 697.It has surprisingly been found that according to the present invention, a mixture is obtained which can be easily stored and can be used for many recycling processes as such without further treatment. The product of the process according to the present invention is easy to transport and easy to feed in recycling reactors.According to the present invention, composition (PC) comprising at least one polymer (P1) is provided in step (I) and subsequently mixed with a composition (CS) comprising at least one component (C1) selected from the group consisting of polar, organic solvents, to obtain a heterogeneous mixture (M1) according to step (ii).According to the present invention, the solubility of polymer (P1), preferably of the composition (PC) in the composition (CS) is less than 50%, i.e. preferably, the polymer (P1), in particular the composition (PC) is not soluble in the composition (CS).It was surprisingly found that the composition (PC) absorbs the composition (CS), resulting in a wet solid that is not dusty or flammable and cannot be statically charged. Preferably, mixture (M1) according to the present invention forms no flammable or explosive dust, determined according to ISO 6184-1.Surprisingly, not a smooth liquid was obtained but due to the swallowing effect of the composition (PC) a heterogeneous mixture with the behavior of a solid material. Mixture (M1) may preferably be a suspension.Preferably, composition (PC) may absorb up to 95% by weight of composition (CS) based on the weight of composition (PC). According to the present invention, the amount of composition (CS) preferably is in the range of from 10 to 80 % by weight of composition (CS) based on the weight of composition (PC), in particular in the range of from 20 to 60 % by weight of composition (CS) based on the weight of composition (PC).According to the present invention, the bulk density of mixture (M1) is in the range of from 200 to 1200 g / l determined according to DIN ISO 697. Typically, the bulk density of the mixture (M1) is determined by measuring the bulk density of several samples and then determining an average value.Regarding the polymeric composition (PC) which is provided according to (I), it is preferred that it is provided in solid form, more preferably in the form of particles or pieces. The polymeric composition (PC) preferably is an end-of-life material. The materials used in the present invention are preferably obtained from items produced from materials at a time after use for the purpose for which they were manufactured or material waste from production processes. Before subjecting to the process of the present invention, the items may be subjected to sorting steps and / or to mechanical240288W001- 3 - comminution. That is, further sorting and bringing the items into appropriate sizes, e.g., by shredding, sieving or separation by rates of density, i.e. by air, a liquid or magnetically. Optionally, these fragments may then undergo processes to eliminate impurities, e.g. paper labels. Furthermore, steps to remove blowing agents may be included in the process. Suitable methods are in principle known to the person skilled in the art. The comminution can be carried out in a commercial chipper, cutter or shredder. The particles may further be sorted by sieving methods.The term "particle” as used in this context of the present invention comprises optionally pre-formed granules, and also comprises shredded pieces.The average particle size of composition (PC) preferably is in a range of from 0.1 cm to 10 cm, more preferable in a range of from 0.2 to 5 cm, more preferable in a range of from 0.5 to 2 cm, in particular in a range of from 0.5 to 1 cm.Preferably, polymer (P1) is present in the composition (PC) in form of a polymer foam. The density of the foam comprising polymer (P1), preferably consisting of polymer (P1) preferably is in the range of from 10 to 1200 g / l, more preferable in the range of from 15 to 400 g / l determined according to DIN ISO 697.According to a further embodiment, the present invention relates to the process as disclosed above, wherein composition (PC) comprises a comminuted foam comprising polymer (P1).According to the present invention, the composition (PC) might also be subjected to a chopping step which may be performed in a batch process. Chopping may for example be performed by a rotating knife or by pressing the composition through a sieve.According to the present invention, it is also possible that a comminuting step is performed after mixing composition (PC) and composition (CS). Step (ii) may for example comprise a mixing and a comminuting step. According to a further embodiment, the present invention relates to the process as disclosed above, wherein step (ii) comprises (ii-a) adding composition (PC) to composition (CS) to obtain a mixture (MT);(ii-b) comminuting mixture (MT) to obtain mixture (M1).Comminuting according to step (ii-b) may be performed by any suitable method, for example by a chopping step.Compositions suitable as polymeric composition (PC) may for example comprise end of life materials and waste. According to a further embodiment, the present invention is directed to the process as disclosed above, wherein the composition (PC) is part of waste stream (W). Preferably, polymer (P1) is in the form of a flexible foam. Suitable are in particular foams with a high content of open cells, such as for example a content of open cells of 50% or more measured according to DIN EN ISO 4590.According to a further embodiment, the present invention relates to the process as disclosed above, wherein composition (PC) comprises a foam with a content of open cells of 50% or more measured according to DIN EN ISO 4590.240288W001- 4 -Typically, composition (PC) is used as a dry material, i.e. typically composition (PC) has a low water content. According to a further embodiment, the present invention relates to the process as disclosed above, wherein composition (PC) has a water content of less than 5%, preferably less than 2% by weight based on the weight of composition (PC).Preferably, the content of polymer (P1) in composition (PC) is in the range of from 50 to 100 % by weight, preferably in the range of from 70 to 95 % by weight based on the weight of composition (PC), more preferable in the range of from 80 to 90 % by weight. According to a further embodiment, the present invention relates to the process as disclosed above, wherein the content of polymer (P1) in composition (PC) is in the range of from 50 to 100 % by weight, preferably in the range of from 70 to 95 % by weight based on the weight of composition (PC).Waste streams and suitable methods for sorting waste streams to obtain composition (PC) are in principle known to the person skilled in the art. According to a further embodiment, the present invention is directed to the process as disclosed above, wherein the composition (PC) is post industrial and / or post consumer waste, preferably comprises one or more selected from mattress, cushions, insulation, interior lining of motor vehicles, seat cushions, furniture, acoustic elements and bike saddles or parts thereof.Preferably, the polymer comprises a one or more thermoplastic(s), thermoset(s) and / or elastomer(s), preferably ther- moplastic(s) and / or thermoset(s), more preferably thermoset(s).Preferably, the polymer waste is selected from the group consisting of polyethylene (PE), polypropylene (PP), polystyrene (PS), poly (methyl methacrylate) (PMMA), polyurethane (PU), polyurea, poly(lactic acid) (PLA), polybutylene terephthalate (PBT), polybutylene adipate terephthalate (PBAT), and any combination thereof. Preferably, the polymer waste is selected from polyurethane, polyurea, poly (lactic acid), polybutylene terephthalate, polybutylene adipate terephthalate, or any combination thereof. More preferably, the polymer waste is polyurethane.Herein, the term "polyurethane waste” includes in particular end-of-life polyurethane foams and production rejects of PU foams. In this context, the term "spent polyurethane foam” denotes an item produced from a polyurethane foam at a time when it has already been used for the purpose for which it was manufactured. "Production rejects of polyurethane foams" denotes polyurethane foam waste occurring in production processes of PU foams.Generally, polyurethane foams are produced by a reaction between a polyisocyanate component (A) and a polyol component (B). The properties of a polyurethane foam are influenced by the types of polyisocyanate and polyol components used.240288W001- 5 -Organic polyisocyanates that can be used in the preparation of polyurethanes are any of the known organic di- and polyisocyanates, preferably aromatic polyfunctional isocyanates. Preferably, an isocyanate component having a functionality in the range of from 1.9 to 2.7 is used according to the present invention, in particular in the range of from 1.9 to 2.2, more preferable in the range of from 1.95 to 2.1 , most preferable in the range of from 1.96 to 2.05.Individual examples which may be mentioned are tolylene 2,4 and 2,6-diisocyanate (TDI) and the corresponding isomer mixtures, diphenylmethane 4,4' , 2,4' and 2,2' diisocyanate (MDI) and the corresponding isomer mixtures, mixtures composed of diphenylmethane 4,4'- and 2,4'-diisocyanates, polyphenyl polymethylene polyisocyanates, mixtures composed of diphenylmethane 4,4'-, 2,4'- and 2,2'- diisocyanates The organic di- and polyisocyanates may be used individually or in the form of mixtures.Compounds which may be used for the preparation of polyurethanes which have at least two hydrogen atoms reactive toward isocyanate groups are those which bear at least two reactive groups selected from OH groups, SH groups, NH groups, NH2 groups, and acidic CH groups. Preferably polyols are used and in particular polyether alcohols and / or polyester alcohols whose OH numbers are in the range from 25 to 800 mg KOH / g. According to the present invention, preferably a polyol component having a functionality in the range of from 1.7 to 2.7 is used, in particular in the range of from 1.7 to 2.2, more preferable in the range of from 1.7 to 2.1 , most preferable in the range of from 1 .7 to 2.05. It is also possible here to use mixtures of polyols.Common polyols used in huge quantities are, e.g., polyester polyols, low molecular weight polyols such as ethylene glycol or propylene glycol, or high molecular weight polyether polyols based on glycerol, ethylene glycol, polypropylene glycol, polytetramethylene glycol, and polyesterpolyols.The composition (PC) is mixed with a composition (CS) comprising component (C1). Preferably, component (C1) is selected from the group consisting of polar, organic solvents with a molecular weight in the range of from 20 to 5000 g / mol, such as for example polyols, in particular polyesterpolyols or polyetherpolyols. According to a further embodiment, the present invention relates to the process as disclosed above, wherein component (C1) is selected from the group consisting of polar, organic solvents with a molecular weight in the range of from 20 to 5000 g / mol.Particularly suitable are organic solvents comprising one or more -OH, amide, amine, ether, or ester groups and mixtures thereof, in particular alcohols. According to a further embodiment, the present invention relates to the process as disclosed above, wherein component (C1) is selected from the group consisting of organic solvents comprising one or more -OH, amide, amine, ether, or ester groups and mixtures thereof. According to a further embodiment, the present invention relates to the process as disclosed above, wherein component (C1) is selected from alcohols.According to the present invention, it has been found that it is particularly advantageous to use component (C1) which has a similar chemical structure to at least one of the monomers used for the preparation of polymer (P1 ). For240288W001- 6 - polyol (P1) being prepared from monomers (A) and (B), preferably component (C1) s used which has a similar chemical structure than monomer (B). According to one embodiment of the present invention, component (C1) and monomer (B) may independently be selected from the group consisting of polyols. Preferably, component (C1) and monomer (B) are independently be selected from the group consisting of polyetherols and polyesterols.According to a further embodiment, the present invention relates to the process as disclosed above, wherein polymer (P1) is obtained or obtainable from a composition comprising monomers (A) and (B) and wherein the monomer (B) and component (C1) is a polyol, more preferably wherein the polyol is independently selected from polyesterpolyols or polyetherpolyols.Suitable polyols are for example polyols with a molecular weight in the range of from 200 to 5000 g / mol. According to a further embodiment, the present invention relates to the process as disclosed above, wherein monomer (B) is selected from the group consisting of polyols, in particular from the group consisting of polyols with a molecular weight in the range of from 200 to 5000 g / mol.The ratio of polymeric composition (PC) and composition (CS) can vary in broad ranges and may preferably be in a range of from 1 :99 to 50:50.Preferably, the composition (PC) is melt-emulsifiable in the composition (CS) under a temperature lower than 250 °C. For example, the composition (PC) may have a melting point lower than 250 °C. Alternative, when standalone, the polymer waste may have a melting point equal to or higher than 250 °C. However, when present in the dispersion medium, it is emulsifiable under a temperature lower than 250 °C due to its interaction with the dispersion medium.The term "melt-emulsifiable” means the ability of a polymer to be dispersed in the dispersion medium under an operational temperature. Being melt-emulsifiable under a certain temperature does not necessarily mean the polymer will melt under such temperature. Preferably, the polymer (P1) has a good compatibility with the composition (CS).According to a further embodiment, the present invention relates to the process as disclosed above, wherein polymer (P1) is selected from melt-emulsifiable polymers, preferably melt-emulsifiable polyurethanes and / or polyureas or mixtures or copolymers thereof.It has been found that the mixture (M1) obtained in the process according to the present invention can advantageously be used in a melt-emulsification process. Especially in the melt-emulsification recycling approach the constant feeding of PU foam is difficult and this is important to achieve a suitable polyol: PU foam mixing ratio. The process according to the present invention allows the melt-emulsification recycling with an easy extruder set up. By premixing, the desired polymer : solvent ratio can be adjusted, fed into an extruder and the liquid polymer polyol can be collected direct after extrusion.240288W001- 7 -According to a further embodiment, the present invention relates to the process as disclosed above, wherein the process comprises a step of using the mixture (M1) in a melt-emulsification process. According to a further aspect, the present invention is also directed to the use of a composition comprising at least one polymer (P1) and at least one component (C1) selected from polar solvents obtained or obtainable by a process as disclosed above in a melt-emul- sification process.According to the present invention, mixture (M1) comprises composition (PC) and composition (CS) but may also comprise further additives, such as for example additives for particle stabilization, deamination, decreasing viscosity, antioxidants.Preferably, mixture (M1) comprises 20 to 80 % by weight, preferably 40 to 70 % by weight of composition (CS). Preferably, mixture (M1) comprises 20 to 99% by weight, preferably 30 to 60 % by weight of composition (PC). Preferably, mixture (M1) comprises 0 to 50% by weight, preferably 0 to 20% by weight of one or more additive(s) (CA).According to a further embodiment, the present invention relates to the process as disclosed above, wherein mixture (M1) comprises(a) 20 to 80 % by weight, preferably 40 to 70 % by weight of composition (CS);(b) 20 to 99% by weight, preferably 30 to 60 % by weight of composition (PC);(c) 0 to 50% by weight, preferably 0 to 20% by weight of one or more additive(s) (CA).Mixture (M1) might be used in a suitable process for recycling polymer (P1) or may also be stored in a suitable storage unit.Mixture (M1) can be easily stored or transported without dust formation. Suitable apparatuses for storage and transportation are in principle known to the person skilled in the art. According to a further embodiment, the present invention relates to the process as disclosed above, wherein the process comprises a step of introducing the mixture (M1) into an apparatus (A1), into a vehicle or into a storage unit. According to a further embodiment, the present invention relates to the process as disclosed above, wherein introducing mixture (M1) into the apparatus (A1) is performed by a conveyer belt and / or screw conveyor, preferably a conveyer belt.Preferably, apparatus (A1) is an extruder and / or gasifier and / or pyrolysis reactor and / or depolymerization reactor. According to a further embodiment, the present invention relates to the process as disclosed above, wherein the apparatus (A1) is an extruder and / or gasifier and / or pyrolysis reactor and / or depolymerization reactor.The present invention is also directed to the products obtained in the process according to the process according to the invention.240288W001- 8 -Depending on the steps of the process, different products may be obtained. It is for example possible according to the present invention that mixture (M1) is treated in extruder and / or gasifier and / or pyrolysis reactor and / or depolymerization reactor. In case mixture (M1) is treated in a depolymerization reactor, oligomers or monomers of Polymer (P1) are preferably obtained which may be used in turn for the preparation of polymers.In case mixture (M1) is further treated in a melt-emulsification process, preferably a product is obtained which comprises polymer (P1) or monomer or oligomer of polymer (P1) and at least one component (C1) selected from polar organic solvents or which may also comprise reaction products of polymer (P1) or monomers or oligomers of polymer (P1) and at least one component (C1) selected from polar organic solvents,According to a further aspect, the present invention is also directed to a composition (C2) comprising at least one polymer (P1) or monomer or oligomer of polymer (P1) and at least one component (C1) selected from polar organic solvents obtained or obtainable by a process according to the invention. The present invention is also directed to a composition comprising a polymer product obtained or obtainable by a process according to the invention.According to a further aspect, the present invention is also directed to a process preferably a process as disclosed above, comprising the step: converting the composition and / or mixture and / or polyol obtainable by or obtained by the process as disclosed above or a chemical material obtainable by or obtained by the process as disclosed above to obtain a product.According to a further embodiment, the present invention is also directed to a process as disclosed above, wherein the product is selected from:I) building block or monomer; orII) polymer, preferably polymer A, polymer composition, preferably polymer composition A, or polymer product, preferably polymer product A; or ill) industrial use polymer, industrial use surfactant, descaling compound, industrial use biocide, industrial use solvent, industrial use dispersant, composition thereof or formulation thereof; or iv) agrochemical composition, agrochemical formulation auxiliary or agrochemically active ingredient; or v) active pharmaceutical ingredient or intermediate thereof, pharmaceutical excipient, animal feed additive, human food additive, dietary supplements, aroma chemical or aroma composition; or vi) aqueous polymer dispersion, preferably polyurethane or polyurethane - poly(meth)acrylate hybrid polymer dispersion, emulsion, binder for paper and fiber coatings, UV-curable acrylic polymer for hot melts and coatings polyisocyanates, hyperbranched polyester polyol, polymeric dispersant for inorganic binder compositions, unsaturated polyester polyol or 100% curable composition; or vii) cosmetic surfactant, emollient, wax, cosmetic polymer, UV filter, further cosmetic ingredient or composition or formulation thereof; or240288W001- 9 - viii) polymer B, polymer composition B, coating composition, other functional composition, foil, molded body, coating or coated substrate.According to a further embodiment, the present invention is also directed to a process as disclosed above, wherein the content of the polymeric material (PM) in the polymer product is 1 weight-% or more, preferably 2 weight- % or more, more preferably 5 weight-% or more, more preferably 15 weight-% or more, more preferably 30 weight-% or more, more preferably 40 weight-% or more, more preferably 60 weight-% or more, more preferably 80 weight-% or more, more preferably 90 weight-% or more, more preferably 95 weight-% or more; and / or wherein the content of the polymeric material (PM) in the polymer product is 100 weight-% or less, preferably 95 weight-% or less, more preferably 90 weight-% or less, more preferably 50 weight-% or less, more preferably 25 weight-% or less, more preferably 10 weight-% or less; and preferably wherein the content is determined based on identity preservation and / or segregation and / or mass balance and / or book and claim chain of custody models, preferably based on mass balance, preferably the International Sustainability and Carbon Certification (ISCC) standard.The publication Prior Art Disclosure; Issue 684; paragraphs

[1000] to

[8005] ; ISSN: 2198-4786; published: February 12, 2024 will be regarded as Reference RF1, which is incorporated herein by reference in its entirety. Preferably, the product is a product as described in Reference RF1; paragraphs

[1000] to

[8005] , Preferably, the process described herein is further a process for the production of a product.The converting step to obtain the product preferably comprises one or more step(s) as described below and can be performed by conventional methods well known to a person skilled in the art. The converting step preferably comprises one or more step(s) selected from: recycling, preferably depolymerizing, gasifying, pyrolyzing, and / or steam cracking; and / or purifying, preferably crystallizing, (solvent) extracting, distilling, evaporating, hydrotreating, absorbing, adsorbing and / or subjecting to ion exchanger; and / or assembling, preferably foaming, synthesizing, chemical conversion, chemically transforming, polymerizing and / or compounding; and / or forming, preferably foaming, extruding and / or molding; and / or finishing, preferably coating and / or smoothing.In addition, the one or more step(s) are described in detail in Reference RF1; paragraphs

[1000] to

[8005] ,The term "building block”, as used herein, comprises compounds, which are in a gaseous or liquid state under standard conditions of 0°C and 0.1 MPa. Building blocks are typically used in chemical industry to form secondary products, which provide a higher structural complexity and / or higher molecular weight than the building block on which the secondary product is based. The building block is preferably selected from the group consisting of hydrogen, carbon monoxide, carbon dioxid, ethylene oxide, ethylene glycols, syngas comprising a mixture of hydrogen and carbon240288W001- 10 - monoxide, alkanes, alkenes, alkynes and aromatic compounds. The alkanes, alkenes, alkynes and aromatic compounds comprise in particular 1 to 12 carbon atoms, respectively.The term "monomer”, as used herein, comprises molecules, which can react with each other to form polymer chains by polymerization. The monomer is preferably selected from the group consisting of (meth)acrylic acid, salts of (meth)acrylic acid; in particular sodium, potassium and zinc salts; (meth)acrolein and (meth)acrylates. (Methacrylates comprising 1 to 22 carbon atoms are preferred, in particular comprising 1 to 8 carbon atoms. The terms (meth)acrylic acid, (meth)acrolein or (meth)acrylate relate to acrylic acid, acrolein or acrylate and also to methacrylic acid, methacrolein or methacrylate, where applicable. Further, the monomer can be selected from hexamethylenediamine (HMD) and adipic acid.The building block can further be an intermediate compound. The term "intermediate compound”, as used herein, comprises organic reagents, which are applied for formation of compounds with higher molecular complexity. The intermediate compound can be selected for example from the group consisting of phosgene, polyisocyanates and propylene oxide. The polyisocyanates are in particular aromatic di- and polyisocyanates, preferably toluene diisocyanate (TDI) and / or diphenylmethane diisocyanate (MDI).The building block and the monomer and typical converting step(s) to obtain the building block or monomer are described in more detail in paragraphs

[1000] to

[1012] of Reference RF1.The term "polymer A”, as used herein, comprises thermoplastic, e.g., polyamide or thermoplastic polyurethane, thermoset, e.g., polyurethane, elastomer, e.g., polybutadiene, or a copolymer or a mixture thereof and is defined in more detail in paragraphs

[2001] to

[2007] of Reference RF1.The term "polymer composition A”, as used herein, comprises all compositions comprising a polymer as described above and one or more additive(s), e.g. reinforcement, colorant, modifier and / or flame retardant, and is defined in more detail in paragraph

[2008] of Reference RF1.The term "polymer product A”, as used herein, comprises any product comprising the polymer A and / or polymer composition A as described above and is defined in more detail in paragraphs

[2009] and

[2010] of Reference RF1.The step(s) to obtain the polymer, preferably polymer A, polymer composition, preferably polymer composition A or polymer product, preferably polymer product A is / are described in more detail in paragraph

[2011] of Reference RF1 .The term "industrial use polymer”, as used herein, comprises rheology, polycarboxylate, alkoxylated polyalkylenamine, alkoxylated polyalkylenimine, polyether-based, dye inhibition and soil release cleaning polymers defined in more detail in paragraphs

[3035] to

[3044] of Reference RF1. The term "industrial use surfactant”, as used herein, comprises non-ionic, anionic and amphoteric industrial use surfactants defined in more detail in paragraphs

[3008] to

[3034] of Reference RF1. The term "industrial use descaling compound”, as used herein, comprises non-phosphate based builders (NPB) and phosphonates (CoP) described in more detail in paragraphs

[3001] to

[3005] of Reference RF1. The term "industrial use biocide”, as used herein, refers to a chemical compound that kills microorganisms or240288W001- 11 - inhibits their growth or reproduction defined in more detail in paragraphs

[3006] to

[3007] of Reference RF1. The term "industrial use solvent”, as used herein, comprises alkyl amides, alkyl lactamides, alkyl esters, lactate esters, alkyl diester, cyclic alkyl diester, cyclic carbonates, aromatic aldehydes and aromatic esters defined in more detail in paragraphs

[3045] to

[3055] of Reference RF1. The term "industrial use dispersant”, as used herein, comprises anionic and non-ionic industrial use dispersants defined in more detail in paragraphs

[3056] to

[3058] of Reference RF1. The term "composition and / or formulation thereof' with reference to the industrial use polymers, industrial use surfactants, descaling compounds and / or industrial use biocides refers to industrial use compositions and / or institutional use products and / or fabric and home care products and / or personal care products defined in more detail in paragraph

[3059] of Reference RF1. The converting step(s) to obtain the industrial use polymer, industrial use surfactant, descaling compound and / or industrial use biocide are defined in more detail in paragraph

[3060] of Reference RF1 . The converting steps to obtain the industrial use composition or formulation of the industrial use polymer, industrial use surfactant, descaling compound and / or industrial use biocide are defined in more detail in paragraph

[3061] of Reference RF1.The term "agrochemical composition”, as used herein, typically relates to a composition comprising an agrochemi- cally active ingredient and at least one agrochemical formulation auxiliary. Examples of agrochemical compositions, active ingredients and auxiliaries are described in more detail in Reference RF1, paragraph

[4001] ,The agrochemical composition may take the form of any customary formulation. The agrochemical compositions are prepared in a known manner, e.g. described by Mollet and Grubemann, Formulation technology, Wiley VCH, Weinheim, 2001; or Knowles, New developments in crop protection product formulation, Agrow Reports DS243, T&F Informa, London, 2005. The converting step(s) to obtain the agrochemically active ingredients and auxiliaries may be conducted in analogy to the production step(s) of their analogues that are based on petrochemicals or other precursors that are not gained by recycling processes. In addition, conversion to compounds mentioned in sections "Polymer” and "Cosmetic surfactant, emollient, wax, cosmetic polymer, UV filter, further cosmetic ingredient or compositions or formulations thereof' may be performed as described in these sections as well as the respective paragraphs in Reference RF1.The term active pharmaceutical ingredients and / or intermediates thereof, as used herein, comprises substances that provide pharmacological activity or other direct effect in the diagnosis, cure, mitigation, treatment, or prevention of disease, or to affect the structure or any function of the body. Intermediates thereof are isolated products that are generated during a multi-step route of synthesis of an active pharmaceutical ingredient. The term pharmaceutical excipients, as used herein, comprises compounds or compound mixtures used in compositions for various pharmaceutical applications, which are not substantially pharmaceutically active on itself. Active pharmaceutical ingredients and / or intermediates thereof and pharmaceutical excipients are defined in more detail in paragraph

[5001] of Reference RF1.240288W001- 12 -The converting step(s) to obtain the active pharmaceutical ingredients and / or intermediates thereof and pharmaceutical excipients may comprise one or more synthesis steps and can be performed by conventional synthesis and techniques well known to a person skilled in the art.The terms animal feed additives, human food additives, dietary supplements, as used herein, comprises Vitamins, Pro-Vitamins and active metabolites thereof including intermediates and precursors, especially Vitamin A, B, E, D, K and esters thereof, like acetate, propionate, palmitate esters or alcohols thereof like retinol or salts thereof and any combinations thereof; Tetraterpenes, especially isoprenoids like carotenoids and xanthophylls including their intermediates and precursors as well as mixtures and derivates thereof, especially beta carotene, Canthaxanthin, Citranax- anthin, Astaxanthin, Zeaxanthin, Lutein, Lycopene, Apo-carotenoids, and any combinations thereof; organic acids, especially formic acid, propionic acid and salts thereof, such as sodium, calcium or ammonium salts, and any combinations thereof, such as but not limited to mixtures of formic acid and sodium formiate, propionic acid and ammonium propionate, formic acid and propionic acid, formic acid and sodium formiate and propionic acid, propionic acid and sodium propionate and formic acid and sodium formiate; glycerides of carboxylic acids and short and medium chain fatty acids, conjugated linoleic acids, such as omega-6 fatty acid (C18:2) methyl ester and 1 ,2-propandiol and beverage stabilizers, such as polyvinylpyrrolidone-polymer or polyvinylimidazole / polyvinylpyrrolidone-copolymer. Animal feed additives, human food additives and dietary supplements are defined in more detail in paragraph

[5002] of Reference RF1.The converting step(s) to obtain the animal feed additives, human food additives, dietary supplements may comprise one or more synthesis steps and can be performed by conventional synthesis and techniques well known to a person skilled in the art.The terms aroma chemical and aroma composition as used herein, comprise a volatile organic substance with a molecular weight between 70-250 g / mol comprising a functional group with a carbon skeleton of C5-C16 carbon atoms comprising linear, branched, cyclic, for example with a ring size of C5-C18, bicyclic or tricyclic aliphatic chains and but not necessarily one or more unsaturated structural elements like double bonds, triple bonds, aromatics or heteroaromatics and preferably the one or more additional functional groups are selected from alcohol, ether, ester, ketone, aldehyde, acetal, carboxylic acid, nitrile, thiol, amine. In one aspect, the aroma chemical is a terpene-based aroma chemical, for example selected from monoterpenes and monoterpenoids, sesquiterpenes and sesquiterpe- noids, diterpenes, triterpenes or tetraterpenes. Aroma chemicals can be combined with further aroma chemicals to give an aroma composition. Aroma chemicals and aroma compositions are defined in more detail in paragraph

[5003] of Reference RF1 .The converting step(s) to obtain the aroma chemical and aroma composition may comprise one or more synthesis steps and can be performed by conventional synthesis and techniques well known to a person skilled in the art.The term "aqueous polymer dispersion”, as used herein, comprises aqueous composition(s) comprising dispersed polymer(s) and is defined in more detail in the section

[6001] entitled "aqueous polymer dispersion” of Reference240288W001- 13 -RF1. The dispersed polymer(s) may be selected from acrylic emulsion polymer(s), styrene acrylic emulsion poly- mer(s), styrene butadiene dispersion(s), aqueous dispersion(s) comprising composite particles, acrylate alkyd hybrid dispersion(s), polyurethane(s) (including UV-curable polyurethanes) and polyurethane - poly(meth)acrylate hybrid polymer(s). The term "emulsion polymer”, as used herein, comprises polymer(s) made by free-radical emulsion polymerization. Aqueous polyurethane dispersion(s) are defined in more detail in the section

[6002] entitled "Polyurethane dispersions” of Reference RF1. UV-curable polyurethane(s) is / are defined in more detail in the section

[6017] of Reference RF1. Polyurethane - poly(meth)acrylate hybrid polymer(s) is / are defined in more detail in the section

[6016] of Reference RF1 .The term "polymeric dispersant”, as used herein, comprises preferably polymer(s) comprising polyether side chain, in particular polycarboxylate ether polymer(s) and polycondensation product(s) defined in more detail in paragraph

[6020] entitled "Polymeric dispersant” of Reference RF1.The converting (polymerization) step(s) to obtain the aqueous polymer dispersion(s) comprising emulsion polymer(s) is / are defined in more detail in the section

[6003] entitled "Emulsion polymerization” of Reference RF1.The converting (polymerization) step(s) to obtain the aqueous polyurethane dispersion(s) is / are defined in more detail in the section

[6014] entitled "Process for the preparation of aqueous polyurethane dispersions” and section [6017)] entitled "Aqueous UV-curable polyurethane dispersions, their preparation and use and compositions containing them” of Reference RF1 .Composition(s) and uses of aqueous polymer dispersion(s) and of polymeric dispersant(s) are defined in more detail in the following sections of Reference RF1 : section

[6004] entitled "Uses of aqueous polymer dispersions”, section

[6005] entitled "Binders for architectural and construction coatings” section

[6006] entitled "Binders for paper coating” section

[6007] entitled "Binders for fiber bonding” section

[6008] entitled "Adhesive polymers and adhesive compositions” section

[6015] entitled "Aqueous polyurethane dispersions suitable for use in coating compositions” section

[6016] entitled "Aqueous polyurethane - poly(meth)acrylate hybride polymer dispersions suitable for use in coating compositions” section

[6017] entitled "Aqueous UV-curable polyurethane dispersions, their preparation and use and compositions containing them” section

[6018] entitled "Inorganic binder compositions comprising polymeric dispersants and their use”

[6019] 100% curable coating compositionsUV-crosslinkable poly(meth)acrylate(s) and its / their uses are defined in more detail in section

[6009] entitled "UV- crosslinkable poly(meth)acrylates for use in UV-curable solvent-free hotmelt adhesives and their use for making pressure-sensitive self-adhesive articles” of Reference RF1.240288W001- 14 -Polyisocyanate(s), composition(s) comprising them and their uses are defined in more detail in section

[6010] entitled "Polyisocyanates” of Reference RF1.Hyperbranched polyester polyol(s) and its / their uses are defined in more detail in section

[6011] entitled "Organic solvent based hyperbranched polyester polyols suitable for use in coating compositions” of Reference RF1. The converting step(s) to obtain the hyperbranched polyester polyols is / are defined in more detail in the section

[6012] entitled "Preparation of organic solvent based hyperbranched polyester polyols” of Reference RF1 . Coating compositions) comprising hyperbranched polyester polyol(s), polyisocyanate(s) and additive(s) and substrate(s) coated therewith are defined in more detail in section

[6013] entitled "Organic solvent based two component coating compositions comprising hyperbranched polyester polyols and polyisocyanates” of Reference RF1.Unsaturated polyester polyol(s), solvent-based coating composition(s) comprising said unsaturated polyester pol- yol(s) and substrate(s) for coating with said coating composition(s) are defined in more detail in section

[6018] entitled "Organic solvent based coating composition comprising unsaturated polyester polyols” of Reference RF1. 100% curable coating composition(s) is / are defined in more detail in section

[6019] of Reference RF1.Polymeric dispersant(s) for inorganic binder compositions is / are defined in more detail in section

[6020] of Reference RF1. The inorganic binder composition(s) comprising the polymeric dispersants and their use are defined in more detail in section

[6021] of Reference RF1. The converting step(s) to obtain the polymeric dispersant(s) are defined in more detail in section

[6020] of Reference RF1. The term "inorganic binder composition” comprising the polymeric dispersant(s), as used herein, comprises preferably in particular hydraulically setting compositions and compositions comprising calcium sulfate and is defined in more detail in section

[6021] of Reference RF1 entitled "Inorganic binder compositions comprising the polymeric dispersant and their use”. Specific building material formulation(s) comprising polymeric dispersant(s) or building product(s) produced by a building material formulation comprising a polymeric dispersant are disclosed in more detail in section

[6021] of Reference RF1.The term "cosmetic surfactant”, as used herein, comprises non-ionic, anionic, cationic and amphoteric surfactants and is defined in more detail in paragraph

[7002] of Reference RF1. The term "emollient”, as used herein, refers to a chemical compound used for protecting, moisturizing, and / or lubricating the skin and is defined in more detail in paragraph

[7003] of Reference RF1 . The term "wax”, as used herein, comprises pearlizers and opacifiers and is defined in more detail in paragraph

[7004] of Reference RF1. The term "cosmetic polymer”, as used herein, comprises any polymer that can be used as an ingredient in a cosmetic formulation and is defined in more detail in paragraph

[7005] of Reference RF1. The term "UV filter”, as used herein, refers to a chemical compound that blocks or absorbs ultraviolet light and is defined in more detail in paragraph

[7006] of Reference RF1. The term "further cosmetic ingredient”, as used herein, comprises any ingredient suitable for making a cosmetic formulation. Several sources disclose cosmetically acceptable ingredients. E. g. the database Cosing on the internet pages of the European Commission discloses cosmetic ingredients and the International Cosmetic Ingredient Dictionary and Handbook, edited by the Personal Care Products Council (PCPC), discloses cosmetic ingredients. The term "composition and / or formulation thereof” with reference to the cosmetic surfactant, emollient, wax, cosmetic polymer, UV filter and / or further cosmetic240288W001- 15 - ingredient refers to personal care and / or cosmetic compositions or formulations defined in more detail in paragraph

[7007] of Reference RF1. The converting step(s) to obtain the cosmetic surfactant, emollient, wax, cosmetic polymer, UV filter or further cosmetic ingredient is / are defined in more detail in paragraph

[7008] of Reference RF1 .The terms "polymer B”, "polymer composition B”, "coating composition”, "other functional composition”, "foil”, "molded body”, "coating” and "coated substrate” are well known to the person skilled in the art and are defined in more detail from paragraph

[8000] to

[8005] of Reference RF1.The present invention is further illustrated by the following set of embodiments and combinations of embodiments resulting from the dependencies and back-references as indicated. In particular, it is noted that in each instance where a range of embodiments is mentioned, for example in the context of a term such as "The process of any one of embodiments 1 to 4", every embodiment in this range is meant to be explicitly disclosed for the skilled person, i.e. the wording of this term is to be understood by the skilled person as being synonymous to "The process of any one of embodiments 1, 2, 3 and 4". Further, it is explicitly noted that the following set of embodiments represents a suitably structured part of the general description directed to preferred aspects of the present invention, and, thus, suitably supports, but does not represent the claims of the present invention.1. Process for treating a composition (PC) comprising at least one polymer (P1), comprising(I) providing a composition (PC) comprising at least one polymer (P1);(ii) mixing the composition (PC) with a composition (CS) comprising at least one component (C1) selected from the group consisting of polar, organic solvents, to obtain a heterogeneous mixture (M1); wherein the bulk density of mixture (M1) is in the range of from 200 to 1200 g / l determined according to DIN ISO 697.2. The process according to embodiment 1, wherein component (C1) is selected from the group consisting of polar, organic solvents with a molecular weight in the range of from 20 to 5000 g / mol.3. Process for treating a composition (PC) comprising at least one polymer (P1), comprising(I) providing a composition (PC) comprising at least one polymer (P1);(ii) mixing the composition (PC) with a composition (CS) comprising at least one component (C1) selected from the group consisting of polar, organic solvents, to obtain a heterogeneous mixture (M1); wherein the bulk density of mixture (M1) is in the range of from 200 to 1200 g / l determined according to DIN ISO 697,240288W001- 16 - wherein component (C1) is selected from the group consisting of polar, organic solvents with a molecular weight in the range of from 20 to 5000 g / mol.4. The process according to any one of embodiments 1 to 3, wherein composition (PC) has a water content of less than 5%, preferably less than 2% by weight based on the weight of composition (PC).5. Process for treating a composition (PC) comprising at least one polymer (P1), comprising(I) providing a composition (PC) comprising at least one polymer (P1);(ii) mixing the composition (PC) with a composition (CS) comprising at least one component (C1) selected from the group consisting of polar, organic solvents, to obtain a heterogeneous mixture (M1); wherein the bulk density of mixture (M1) is in the range of from 200 to 1200 g / l determined according to DIN ISO 697, wherein composition (PC) has a water content of less than 5%, preferably less than 2% by weight based on the weight of composition (PC).6. The process according to any one of embodiments 1 to 5, wherein the content of polymer (P1) in composition (PC) is in the range of from 50 to 100 % by weight, preferably in the range of from 70 to 95%by weight based on the weight of composition (PC).7. Process for treating a composition (PC) comprising at least one polymer (P1), comprising(I) providing a composition (PC) comprising at least one polymer (P1);(ii) mixing the composition (PC) with a composition (CS) comprising at least one component (C1) selected from the group consisting of polar, organic solvents, to obtain a heterogeneous mixture (M1); wherein the bulk density of mixture (M1) is in the range of from 200 to 1200 g / l determined according to DIN ISO 697, wherein the content of polymer (P1) in composition (PC) is in the range of from 50 to 100 % by weight, preferably in the range of from 70 to 95%by weight based on the weight of composition (PC).8. The process according to any one of embodiments 1 to 7, wherein composition (PC) comprises a foam with a content of open cells of 50% or more, measured according to DIN EN ISO 4590.9. The process according to any one of embodiments 1 to 8, wherein polymer (P1) is obtained or obtainable from a composition comprising monomers (A) and (B) and wherein the monomer (B) and component (C1) is a polyol, more preferably wherein the polyol is independently selected from polyesterpolyols or polyetherpolyols.240288W001- 17 -10. Process for treating a composition (PC) comprising at least one polymer (P1 ), comprising(I) providing a composition (PC) comprising at least one polymer (P1);(ii) mixing the composition (PC) with a composition (CS) comprising at least one component (C1) selected from the group consisting of polar, organic solvents, to obtain a heterogeneous mixture (M1); wherein the bulk density of mixture (M1) is in the range of from 200 to 1200 g / l determined according to DIN ISO 697, wherein polymer (P1) is obtained or obtainable from a composition comprising monomers (A) and (B) and wherein the monomer (B) and component (C1) is a polyol, more preferably wherein the polyol is independently selected from polyesterpolyols or polyetherpolyols.11 . The process according to embodiment 9 or 10, wherein monomer (B) is selected from the group consisting of polyols, in particular from the group consisting of polyols with a molecular weight in the range of from 200 to 5000 g / mol.12. The process according to any one of embodiments 1 to 11, wherein polymer (P1) is selected from melt-emul- sifiable polymers, preferably melt-emulsifiable polyurethanes and / or polyureas or mixtures or copolymers thereof.13. Process for treating a composition (PC) comprising at least one polymer (P1), comprising(I) providing a composition (PC) comprising at least one polymer (P1);(II) mixing the composition (PC) with a composition (CS) comprising at least one component (C1) selected from the group consisting of polar, organic solvents, to obtain a heterogeneous mixture (M1); wherein the bulk density of mixture (M1) is in the range of from 200 to 1200 g / l determined according to DIN ISO 697, wherein polymer (P1) is selected from melt-emulsifiable polymers, preferably melt-emulsifiable polyurethanes and / or polyureas or mixtures or copolymers thereof.14. The process according to any one of embodiments 1 to 13, wherein component (C1) is selected from the group consisting of organic solvents comprising one or more -OH, amide, amine, ether, or ester groups and mixtures thereof.15. The process according to any one of embodiments 1 to 14, wherein component (C1) is selected from alcohols.240288W001- 18 -16. The process according to any one of embodiments 1 to 15, wherein mixture (M1) comprises(a) 20 to 80 % by weight, preferably 40 to 70 % by weight of composition (CS);(b) 20 to 99% by weight, preferably 30 to 60 % by weight of composition (PC);(c) 0 to 50% by weight, preferably 0 to 20% by weight of one or more additive(s) (CA).17. Process for treating a composition (PC) comprising at least one polymer (P1), comprising(I) providing a composition (PC) comprising at least one polymer (P1);(ii) mixing the composition (PC) with a composition (CS) comprising at least one component (C1) selected from the group consisting of polar, organic solvents, to obtain a heterogeneous mixture (M1); wherein the bulk density of mixture (M1) is in the range of from 200 to 1200 g / l determined according to DIN ISO 697, wherein mixture (M1) comprises(a) 20 to 80 % by weight, preferably 40 to 70 % by weight of composition (CS);(b) 20 to 99% by weight, preferably 30 to 60 % by weight of composition (PC);(c) 0 to 50% by weight, preferably 0 to 20% by weight of one or more additive(s) (CA).18. The process according to any one of embodiments 1 to 17, wherein step (ii) comprises(ii-a) adding composition (PC) to composition (CS) to obtain a mixture (MT);(ii-b) comminuting mixture (MT) to obtain mixture (M1).19. The process according to any one of embodiments 1 to 18, wherein composition (PC) comprises a comminuted foam comprising polymer (P1).20. The process according to any one of embodiments 1 to 19, wherein the process comprises a step of introducing the mixture (M1) into an apparatus (A1), into a vehicle or into a storage unit.21. The process according to any one of embodiments 1 to 20, wherein introducing mixture (M1) into the apparatus (A1) is performed by a conveyer belt and / or screw conveyor, preferably a conveyer belt.22. The process according to any one of embodiments 1 to 21, wherein the apparatus (A1) is an extruder and / or gasifier and / or pyrolysis reactor and / or depolymerization reactor.23. The process according to any one of embodiments 1 to 22, wherein the process comprises a step of using the mixture (M1) in a melt-emulsification process.240288W001- 19 -24. Composition (C2) comprising at least one polymer (P1) or monomer or oligomer of polymer (P1) and at least one component (C1) selected from polar organic solvents and or polymer product obtained or obtainable by a process according to any one of embodiments 1 to 23.25. Composition (C2) comprising at least one polymer (P1) or monomer or oligomer of polymer (P1) and at least one component (C1) selected from polar organic solvents and or polymer product obtained or obtainable by a process for treating a composition (PC) comprising at least one polymer (P1 ), comprising(I) providing a composition (PC) comprising at least one polymer (P1);(II) mixing the composition (PC) with a composition (CS) comprising at least one component (C1) selected from the group consisting of polar, organic solvents, to obtain a heterogeneous mixture (M1); wherein the bulk density of mixture (M1) is in the range of from 200 to 1200 g / l determined according to DIN ISO 697.26. The composition according to embodiment 25, wherein component (C1) is selected from the group consisting of polar, organic solvents with a molecular weight in the range of from 20 to 5000 g / mol.27. The composition according to embodiment 25 or 26, wherein composition (PC) has a water content of less than 5%, preferably less than 2% by weight based on the weight of composition (PC).28. The composition according to any one of embodiments 25 to 27, wherein the content of polymer (P1) in composition (PC) is in the range of from 50 to 100 % by weight, preferably in the range of from 70 to 95%by weight based on the weight of composition (PC).29. The composition according to any one of embodiments 25 to 28, wherein composition (PC) comprises a foam with a content of open cells of 50% or more, measured according to DIN EN ISO 4590.30. The composition according to any one of embodiments 25 to 29, wherein polymer (P1) is obtained or obtainable from a composition comprising monomers (A) and (B) and wherein the monomer (B) and component (C1) is a polyol, more preferably wherein the polyol is independently selected from polyesterpolyols or polyetherpolyols.31 . The composition according to embodiment 30, wherein monomer (B) is selected from the group consisting of polyols, in particular from the group consisting of polyols with a molecular weight in the range of from 200 to 5000 g / mol.240288W001- 20 -32. The composition according to any one of embodiments 25 to 31, wherein polymer (P1) is selected from melt- emulsifiable polymers, preferably melt-emulsifiable polyurethanes and / or polyureas or mixtures or copolymers thereof.33. The composition according to any one of embodiments 25 to 32, wherein component (C1) is selected from the group consisting of organic solvents comprising one or more -OH, amide, amine, ether, or ester groups and mixtures thereof.34. The composition according to any one of embodiments 25 to 33, wherein component (01) is selected from alcohols.35. The composition according to any one of embodiments 25 to 34, wherein mixture (M1) comprises(a) 20 to 80 % by weight, preferably 40 to 70 % by weight of composition (OS);(b) 20 to 99% by weight, preferably 30 to 60 % by weight of composition (PC);(c) 0 to 50% by weight, preferably 0 to 20% by weight of one or more additive(s) (CA).36. The composition according to any one of embodiments 25 to 35, wherein step (ii) comprises (ii-a) adding composition (PC) to composition (CS) to obtain a mixture (MT);(ii-b) comminuting mixture (MT) to obtain mixture (M1).37. The composition according to any one of embodiments 25 to 36, wherein composition (PC) comprises a comminuted foam comprising polymer (P1).38. The composition according to any one of embodiments 25 to 37, wherein the process comprises a step of introducing the mixture (M1) into an apparatus (A1), into a vehicle or into a storage unit.39. The composition according to any one of embodiments 25 to 38, wherein introducing mixture (M1) into the apparatus (A1) is performed by a conveyer belt and / or screw conveyor, preferably a conveyer belt.40. The composition according to any one of embodiments 25 to 39, wherein the apparatus (A1) is an extruder and / or gasifier and / or pyrolysis reactor and / or depolymerization reactor.41 . The composition according to any one of embodiments 25 to 40, wherein the process comprises a step of using the mixture (M1) in a melt-emulsification process.42. Use of a composition comprising at least one polymer (P1) and at least one component (C1) selected from polar solvents obtained or obtainable by a process according to any one of embodiments 1 to 22 in a meltemulsification process.240288W001- 21 -43. Use of a composition comprising at least one polymer (P1) and at least one component (C1) selected from polar solvents according to any one of embodiments 24 to 41 in a melt-emulsification process.44. Process, preferably according to any one of the embodiments 1 to 23, comprising the step: converting the composition and / or mixture and / or polyol obtainable by or obtained by the process according to any one of embodiments 1 to 23 or a chemical material obtainable by or obtained by the process according to any one of embodiments 1 to 23 to obtain a product.45. Process according to embodiment 44, wherein the product is selected from:I) building block or monomer; orII) polymer, preferably polymer A, polymer composition, preferably polymer composition A, or polymer product, preferably polymer product A; or ill) industrial use polymer, industrial use surfactant, descaling compound, industrial use biocide, industrial use solvent, industrial use dispersant, composition thereof or formulation thereof; or iv) agrochemical composition, agrochemical formulation auxiliary or agrochemically active ingredient; or v) active pharmaceutical ingredient or intermediate thereof, pharmaceutical excipient, animal feed additive, human food additive, dietary supplements, aroma chemical or aroma composition; or vi) aqueous polymer dispersion, preferably polyurethane or polyurethane - poly(meth)acrylate hybrid polymer dispersion, emulsion, binder for paper and fiber coatings, UV-curable acrylic polymer for hot melts and coatings polyisocyanates, hyperbranched polyester polyol, polymeric dispersant for inorganic binder compositions, unsaturated polyester polyol or 100% curable composition; or vii) cosmetic surfactant, emollient, wax, cosmetic polymer, UV filter, further cosmetic ingredient or composition or formulation thereof; or viii) polymer B, polymer composition B, coating composition, other functional composition, foil, molded body, coating or coated substrate46. Process according to any one of embodiments 44 or 45, wherein the content of the polymeric material (PM) in the product is 1 weight-% or more, preferably 2 weight- % or more, more preferably 5 weight-% or more, more preferably 15 weight-% or more, more preferably 30 weight-% or more, more preferably 40 weight-% or more, more preferably 60 weight-% or more, more preferably 80 weight-% or more, more preferably 90 weight-% or more, more preferably 95 weight-% or more; and / or wherein the content of the polymeric material (PM) in the polymer product is 100 weight-% or less, preferably 95 weight-% or less, more preferably 90 weight-% or less, more preferably 50 weight-% or less, more preferably 25 weight-% or less, more preferably 10 weight-% or less; and240288W001- 22 - preferably wherein the content is determined based on identity preservation and / or segregation and / or mass balance and / or book and embodiment chain of custody models, preferably based on mass balance, preferably the International Sustainability and Carbon Certification (ISCC) standard.The present invention is further illustrated by the following examples.Examples1 . Materials usedPolyol 1 Glycerin / diethylene glycol started polyol with 87,32 % PO content. OH number 48 mgKOH / gPolyol 2 Glycerin started polyol with 84,2 % PO content. OH number 28 mgKOH / g2. Examples 1 to 4A pre-mixed material was prepared containing 85% Polyol 1 and 15% post-consumer waste mattresses. The post consumer waste mattresses had a bulk density of 15-30 g / L. The pre-mixed material has a bulk density of 230 g / L and can be easily fed into all kinds of recycling reactors because it is not fluffy, statical loaded or flammable.Since the ratio of PU : Polyol is already fitting to the desired ratio in melt-emulsification recycling, this material can be fed into existing standard extruders and the process results in a liquid polymer Polyol 1 containing 15% PU waste with a viscosity of 2350 mPas at 25°.Examples 2 to 4 were carried out according to the general procedure described for example 1 . The amounts of the components and the results are summarized in table 1 .Table 1*viscosity determined according to DIN EN ISO 2555

Claims

240288W001- 23 -Claims1. Process for treating a composition (PC) comprising at least one polymer (P1), comprising(I) providing a composition (PC) comprising at least one polymer (P1);(ii) mixing the composition (PC) with a composition (CS) comprising at least one component (01) selected from the group consisting of polar, organic solvents, to obtain a heterogeneous mixture (M1); wherein the bulk density of mixture (M1) is in the range of from 200 to 1200 g / l determined according to DIN ISO 697.

2. The process according to claim 1, wherein component (C1) is selected from the group consisting of polar, organic solvents with a molecular weight in the range of from 20 to 5000 g / mol.

3. The process according to claim 1 or 2, wherein composition (PC) has a water content of less than 5%, preferably less than 2% by weight based on the weight of composition (PC).

4. The process according to any one of claims 1 to 3, wherein the content of polymer (P1) in composition (PC) is in the range of from 50 to 100 % by weight, preferably in the range of from 70 to 95%by weight based on the weight of composition (PC).

5. The process according to any one of claims 1 to 4, wherein composition (PC) comprises a foam with a content of open cells of 50% or more, measured according to DIN EN ISO 4590.

6. The process according to any one of claims 1 to 5, wherein polymer (P1) is obtained or obtainable from a composition comprising monomers (A) and (B) and wherein the monomer (B) and component (C1) is a polyol, more preferably wherein the polyol is independently selected from polyesterpolyols or polyetherpolyols.

7. The process according to claim 6, wherein monomer (B) is selected from the group consisting of polyols, in particular from the group consisting of polyols with a molecular weight in the range of from 200 to 5000 g / mol.

8. The process according to any one of claims 1 to 7, wherein polymer (P1) is selected from melt-emulsifiable polymers, preferably melt-emulsifiable polyurethanes and / or polyureas or mixtures or copolymers thereof.

9. The process according to any one of claims 1 to 8, wherein component (C1) is selected from the group consisting of organic solvents comprising one or more -OH, amide, amine, ether, or ester groups and mixtures thereof, preferably wherein component (C1) is selected from alcohols.240288W001- 24 -10. The process according to any one of claims 1 to 9, wherein mixture (M1) comprises(a) 20 to 80 % by weight, preferably 40 to 70 % by weight of composition (CS);(b) 20 to 99% by weight, preferably 30 to 60 % by weight of composition (PC);(c) 0 to 50% by weight, preferably 0 to 20% by weight of one or more additive(s) (CA).

11. The process according to any one of claims 1 to 10, wherein step (ii) comprises (ii-a) adding composition (PC) to composition (CS) to obtain a mixture (MT); (ii-b) comminuting mixture (MT) to obtain mixture (M1).

12. The process according to any one of claims 1 to 11, wherein the process comprises a step of introducing the mixture (M1) into an apparatus (A1), into a vehicle or into a storage unit, preferably wherein introducing mixture (M1) into the apparatus (A1) is performed by a conveyer belt and / or screw conveyor, preferably a conveyer belt.

13. The process according to any one of claims 1 to 12, wherein the process comprises a step of using the mixture (M1) in a melt-emulsification process.

14. Composition (C2) comprising at least one polymer (P1) or monomer or oligomer of polymer (P1) and at least one component (C1) selected from polar organic solvents and or polymer product obtained or obtainable by a process according to any one of claims 1 to 13.

15. Use of a composition comprising at least one polymer (P1) and at least one component (C1) selected from polar solvents obtained or obtainable by a process according to any one of claims 1 to 12 in a melt-emulsifica- tion process.

Images