Abrégé

The present disclosure relates to the recycling of acrylonitrile butadiene styrene (ABS) waste. The present disclosure relates to methods for recycling ABS waste. For example, the present disclosure relates to methods of recycling ABS waste by recovering styrene acrylonitrile polymer (SAN), optionally by molecular weight (MW). The present disclosure relates to a recycled SAN obtained from ABS waste and articles comprising the recycled SAN.

Classes IPC  ?

• C08F 236/12 - Copolymères de composés contenant plusieurs radicaux aliphatiques non saturés et l'un au moins contenant plusieurs liaisons doubles carbone-carbone le radical ne contenant que deux doubles liaisons carbone-carbone conjuguées avec des nitriles
• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères
• C08L 25/12 - Copolymères du styrène avec des nitriles non saturés
• C08L 47/00 - Compositions contenant des homopolymères ou des copolymères de composés possédant un ou plusieurs radicaux aliphatiques non saturés, l'un au moins contenant plusieurs liaisons doubles carbone-carboneCompositions contenant des dérivés de tels polymères

Abrégé

The present disclosure relates to methods of recovering flame retardant from a styrenic polymer waste.

Classes IPC  ?

• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères

Abrégé

The present disclosure relates to methods of removing brominated contaminants from polystyrene waste and recovering the brominated contaminants. The present disclosure further relates to methods of recycling polystyrene waste, wherein the recycling comprises retention of brominated contaminants or removal of contaminants. The present disclosure also relates to use of monocyclic aromatic benzenic solvents in the removal and/or recovery of brominated contaminants from polystyrene waste and in the recycling of polystyrene waste. Moreover, the present disclosure relates to use of the recovered brominated contaminants in the manufacture of polystyrene products such as insulation.

Classes IPC  ?

• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères

Abrégé

There are provided recycled polystyrene polymers having a melt flow index of less than about 25 g/10 min. There are provided processes for recycling polystyrene waste. The processes can comprise dissolving said polystyrene waste in p-cymene under conditions to obtain a polystyrene/p-cymene mixture, adding the polystyrene/p-cymene mixture to a hydrocarbon polystyrene non-solvent under conditions to obtain precipitated polystyrene and washing the precipitated polystyrene with additional portions of hydrocarbon polystyrene non-solvent under conditions to obtain twice-washed polystyrene. The twice-washed polystyrene can optionally be dried and formed into polystyrene pellets. There is also provided recycled polystyrene obtained from such processes for recycling polystyrene waste.

Classes IPC  ?

• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères
• B29B 17/02 - Séparation de matières plastiques des autres matières
• C08F 112/08 - Styrène
• C08J 11/00 - Récupération ou traitement des résidus
• C08L 25/00 - Compositions contenant des homopolymères ou des copolymères de composés possédant un ou plusieurs radicaux aliphatiques non saturés, chacun ne contenant qu'une seule liaison double carbone-carbone et l'un au moins étant terminé par un cycle carbocyclique aromatiqueCompositions des dérivés de tels polymères
• C08L 25/06 - Polystyrène

Abrégé

The present disclosure relates to methods of removing brominated contaminants from polystyrene waste and recovering the brominated contaminants. The present disclosure further relates to methods of recycling polystyrene waste, wherein the recycling comprises retention of brominated contaminants or removal of contaminants. The present disclosure also relates to use of monocyclic aromatic benzenic solvents in the removal and/or recovery of brominated contaminants from polystyrene waste and in the recycling of polystyrene waste. Moreover, the present disclosure relates to use of the recovered brominated contaminants in the manufacture of polystyrene products such as insulation.

Classes IPC  ?

• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères

Abrégé

There are provided processes for recycling polystyrene waste. Recycled polystyrenes are also disclosed. For example, the recycled polystyrene can comprise a non-solvent having a boiling point at 1 atm of pressure of from 98° C. to 110° C.; and ethylbenzene.

Classes IPC  ?

• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères
• B29B 17/02 - Séparation de matières plastiques des autres matières

Produits et services

(1) Decontamination and purification machines for the treatment of thermoplastic resins (2) Recycled thermoplastic resins for use in manufacture (1) Recycling of plastic waste into thermoplastic resins (2) Licensing the recycling technology of decontamination and purification for the treatment of plastic waste into thermoplastic resins

Classes IPC  ?

• C08F 236/12 - Copolymères de composés contenant plusieurs radicaux aliphatiques non saturés et l'un au moins contenant plusieurs liaisons doubles carbone-carbone le radical ne contenant que deux doubles liaisons carbone-carbone conjuguées avec des nitriles
• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères
• C08L 25/12 - Copolymères du styrène avec des nitriles non saturés
• C08L 47/00 - Compositions contenant des homopolymères ou des copolymères de composés possédant un ou plusieurs radicaux aliphatiques non saturés, l'un au moins contenant plusieurs liaisons doubles carbone-carboneCompositions contenant des dérivés de tels polymères

Abrégé

The present disclosure relates to the recycling of acrylonitrile butadiene styrene (ABS) waste. The present disclosure relates to methods for recycling ABS waste. For example, the present disclosure relates to methods of recycling ABS waste by recovering styrene acrylonitrile polymer (SAN), optionally by molecular weight (MW). The present disclosure relates to a recycled SAN obtained from ABS waste and articles comprising the recycled SAN.

Classes IPC  ?

• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères
• C08F 236/12 - Copolymères de composés contenant plusieurs radicaux aliphatiques non saturés et l'un au moins contenant plusieurs liaisons doubles carbone-carbone le radical ne contenant que deux doubles liaisons carbone-carbone conjuguées avec des nitriles

Abrégé

The present disclosure relates to methods of removing brominated contaminants from polystyrene waste and recovering the brominated contaminants. The present disclosure further relates to methods of recycling polystyrene waste, wherein the recycling comprises retention of brominated contaminants or removal of contaminants. The present disclosure also relates to use of monocyclic aromatic benzenic solvents in the removal and/or recovery of brominated contaminants from polystyrene waste and in the recycling of polystyrene waste. Moreover, the present disclosure relates to use of the recovered brominated contaminants in the manufacture of polystyrene products such as insulation.

Classes IPC  ?

• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères

Classes IPC  ?

• B29B 17/02 - Séparation de matières plastiques des autres matières
• C08J 11/06 - Récupération ou traitement des résidus des polymères sans réaction chimique

Abrégé

The present disclosure relates to methods of separating flame retardant from styrenic polymer in a styrenic polymer waste. The method comprises combining the styrenic polymer waste with a solvent to obtain a soluble portion and an insoluble portion, separating the soluble and insoluble portion, and either the flame retardant is substantially in the soluble portion and the styrenic polymer is substantially in the insoluble portion or vice versa.

Classes IPC  ?

• C08J 11/00 - Récupération ou traitement des résidus
• C08J 11/06 - Récupération ou traitement des résidus des polymères sans réaction chimique
• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères

Abrégé

There are provided processes for recycling waste such as polystyrene thermoplastic polymer waste and/or polystyrene thermoplastic copolymer waste as well as recycled polystyrene thermoplastic polymer and/or recycled thermoplastic copolymer that may, for example, be obtained from such processes. The recycled polystyrene and/or recycled polystyrene copolymer obtained therefrom has a transmittance ranging from 80 to 99%; the transmittance being measured in a UV-VIS spectrum at 600 nm at 20° C. on solution comprising the recycled polystyrene and/or recycled polystyrene copolymer diluted in cymene, and wherein the reference solution for 100% of transmittance in a UV-VIS spectrum at 600 nm at 20° C. is a solution of virgin polystyrene homopolymer diluted in cymene, wherein the content of virgin polystyrene is 20 wt. % of the total weight of the reference solution, wherein the content of recycled polystyrene and/or recycled polystyrene copolymer is 20 wt. % of the total weight of the solution.

Classes IPC  ?

• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères
• B29B 17/02 - Séparation de matières plastiques des autres matières

Abrégé

There are provided processes for recycling polystyrene waste. The processes can comprise dissolving said polystyrene waste in ethylbenzene under conditions to obtain a polystyrene/ethylbenzene mixture, adding the polystyrene/ethyl benzene mixture to a hydrocarbon polystyrene non-solvent under conditions to obtain precipitated polystyrene and washing the precipitated polystyrene with additional portions of hydrocarbon polystyrene non-solvent under conditions to obtain twice-washed polystyrene. The twice-washed polystyrene can optionally be dried and formed into polystyrene pellets. There is also provided recycled polystyrene obtained from such processes for recycling polystyrene waste.

Classes IPC  ?

• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères
• B29B 17/02 - Séparation de matières plastiques des autres matières

Abrégé

The present disclosure relates to methods of removing brominated contaminants from polystyrene waste and recovering the brominated contaminants. The present disclosure further relates to methods of recycling polystyrene waste, wherein the recycling comprises retention of brominated contaminants or removal of contaminants. The present disclosure also relates to use of monocyclic aromatic benzenic solvents in the removal and/or recovery of brominated contaminants from polystyrene waste and in the recycling of polystyrene waste. Moreover, the present disclosure relates to use of the recovered brominated contaminants in the manufacture of polystyrene products such as insulation.

Classes IPC  ?

• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères

Abrégé

The present disclosure relates to methods of removing brominated contaminants from polystyrene waste and recovering the brominated contaminants. The present disclosure further relates to methods of recycling polystyrene waste, wherein the recycling comprises retention of brominated contaminants or removal of contaminants. The present disclosure also relates to use of monocyclic aromatic benzenic solvents in the removal and/or recovery of brominated contaminants from polystyrene waste and in the recycling of polystyrene waste. Moreover, the present disclosure relates to use of the recovered brominated contaminants in the manufacture of polystyrene products such as insulation.

Classes IPC  ?

• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères
• B01D 11/02 - Extraction par solvants de solides
• B29B 17/02 - Séparation de matières plastiques des autres matières

Abrégé

There are provided recycled polystyrene polymers having a melt flow index of less than about 25 g/10 min. There are provided processes for recycling polystyrene waste. The processes can comprise dissolving said polystyrene waste in p-cymene under conditions to obtain a polystyrene/p-cymene mixture, adding the polystyrene/p-cymene mixture to a hydrocarbon polystyrene non-solvent under conditions to obtain precipitated polystyrene and washing the precipitated polystyrene with additional portions of hydrocarbon polystyrene non-solvent under conditions to obtain twice-washed polystyrene. The twice-washed polystyrene can optionally be dried and formed into polystyrene pellets. There is also provided recycled polystyrene obtained from such processes for recycling polystyrene waste.

Classes IPC  ?

• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères
• B29B 17/02 - Séparation de matières plastiques des autres matières
• C08F 112/08 - Styrène
• C08J 11/00 - Récupération ou traitement des résidus
• C08L 25/00 - Compositions contenant des homopolymères ou des copolymères de composés possédant un ou plusieurs radicaux aliphatiques non saturés, chacun ne contenant qu'une seule liaison double carbone-carbone et l'un au moins étant terminé par un cycle carbocyclique aromatiqueCompositions des dérivés de tels polymères
• C08L 25/06 - Polystyrène

Abrégé

There are provided processes for recycling waste such as polystyrene thermoplastic polymer waste and/or polystyrene thermoplastic copolymer waste as well as recycled polystyrene thermoplastic polymer and/or recycled thermoplastic copolymer that may, for example, be obtained from such processes. The processes can comprise the use of a reducing agent.

Classes IPC  ?

• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères
• B29B 17/02 - Séparation de matières plastiques des autres matières

Abrégé

There are provided recycled polystyrene polymers having a melt flow index of less than about 25 g/10 min. There are provided processes for recycling polystyrene waste. The processes can comprise dissolving said polystyrene waste in p-cymene under conditions to obtain a polystyrene/p-cymene mixture, adding the polystyrene/p-cymene mixture to a hydrocarbon polystyrene non-solvent under conditions to obtain precipitated polystyrene and washing the precipitated polystyrene with additional portions of hydrocarbon polystyrene non-solvent under conditions to obtain twice-washed polystyrene. The twice-washed polystyrene can optionally be dried and formed into polystyrene pellets. There is also provided recycled polystyrene obtained from such processes for recycling polystyrene waste.

Classes IPC  ?

• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères
• B29B 17/02 - Séparation de matières plastiques des autres matières
• C08F 112/08 - Styrène
• C08L 25/06 - Polystyrène
• C08J 11/00 - Récupération ou traitement des résidus
• C08L 25/00 - Compositions contenant des homopolymères ou des copolymères de composés possédant un ou plusieurs radicaux aliphatiques non saturés, chacun ne contenant qu'une seule liaison double carbone-carbone et l'un au moins étant terminé par un cycle carbocyclique aromatiqueCompositions des dérivés de tels polymères

Abrégé

There are provided processes for recycling waste such as polystyrene thermoplastic polymer waste and/or polystyrene thermoplastic copolymer waste as well as recycled polystyrene thermoplastic polymer and/or recycled thermoplastic copolymer that may, for example, be obtained from such processes. The processes can comprise dissolving the waste in cymene, xylene or ethylbenzene or a suitable solvent, to obtain a mixture followed by heating the mixture under acidic conditions and then optionally neutral conditions in the presence of a reducing agent then cooling to obtain a supernatant comprising polystyrene thermoplastic polymer and/or polystyrene thermoplastic copolymer and a solid waste residue. The supernatant can optionally be treated with a filtration aid, then the supernatant can be contacted with a hydrocarbon polystyrene non-solvent under conditions to obtain precipitated polystyrene thermoplastic polymer and/or precipitated polystyrene thermoplastic copolymer which can be washed with additional hydrocarbon polystyrene non-solvent, and optionally dried and formed into polystyrene thermoplastic polymer pellets and/or polystyrene thermoplastic copolymer pellets.

Classes IPC  ?

• C09J 11/08 - Additifs macromoléculaires
• B29B 17/02 - Séparation de matières plastiques des autres matières
• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères

Abrégé

There is provided a composition for the production of a recycled polystyrene. The composition comprises polystyrene, ethylbenzene and a non-solvent having a boiling point at 1 atm of pressure of from 98° C. to 110° C. There is also provided a method of using ethylbenzene and a non-solvent having a boiling point at 1 atm of pressure of from 98° C. to 110° C. The method comprises mixing together the ethylbenzene, the non-solvent and polystyrene for recycling the polystyrene.

Classes IPC  ?

• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères
• B29B 17/02 - Séparation de matières plastiques des autres matières

Abrégé

Processes for recycling polystyrene waste. The processes can comprise dissolving the polystyrene waste in ethylbenzene under conditions to obtain a polystyrene/ethylbenzene mixture, adding the polystyrene/ethylbenzene mixture to a hydrocarbon polystyrene non-solvent under conditions to obtain precipitated polystyrene and washing the precipitated polystyrene with additional portions of hydrocarbon polystyrene non-solvent under conditions to obtain twice-washed polystyrene. The twice-washed polystyrene can optionally be dried and formed into polystyrene pellets. There is also provided recycled polystyrene obtained from such processes for recycling polystyrene waste.

Classes IPC  ?

• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères
• B29B 17/02 - Séparation de matières plastiques des autres matières

Abrégé

There are provided processes for recycling waste such as polystyrene thermoplastic polymer waste and/or polystyrene thermoplastic copolymer waste as well as recycled polystyrene thermoplastic polymer and/or recycled thermoplastic copolymer that may, for example, be obtained from such processes. The processes can comprise dissolving the waste in cymene, xylene or ethylbenzene or a suitable solvent, to obtain a mixture followed by heating the mixture under acidic conditions and then optionally neutral conditions in the presence of a reducing agent then cooling to obtain a supernatant comprising polystyrene thermoplastic polymer and/or polystyrene thermoplastic copolymer and a solid waste residue. The supernatant can optionally be treated with a filtration aid, then the supernatant can be contacted with a hydrocarbon polystyrene non-solvent under conditions to obtain precipitated polystyrene thermoplastic polymer and/or precipitated polystyrene thermoplastic copolymer which can be washed with additional hydrocarbon polystyrene non- solvent, and optionally dried and formed into polystyrene thermoplastic polymer pellets and/or polystyrene thermoplastic copolymer pellets.

Classes IPC  ?

• B29B 17/00 - Récupération de matières plastiques ou d'autres constituants des déchets contenant des matières plastiques

Abrégé

There are provided processes for recycling waste such as polystyrene thermoplastic polymer waste and/or polystyrene thermoplastic copolymer waste as well as recycled polystyrene thermoplastic polymer and/or recycled thermoplastic copolymer that may, for example, be obtained from such processes. The processes can comprise dissolving the waste in cymene, xylene or ethylbenzene or a suitable solvent, to obtain a mixture followed by heating the mixture under acidic conditions and then optionally neutral conditions in the presence of a reducing agent then cooling to obtain a supernatant comprising polystyrene thermoplastic polymer and/or polystyrene thermoplastic copolymer and a solid waste residue. The supernatant can optionally be treated with a filtration aid, then the supernatant can be contacted with a hydrocarbon polystyrene non-solvent under conditions to obtain precipitated polystyrene thermoplastic polymer and/or precipitated polystyrene thermoplastic copolymer which can be washed with additional hydrocarbon polystyrene non-solvent, and optionally dried and formed into polystyrene thermoplastic polymer pellets and/or polystyrene thermoplastic copolymer pellets.

Classes IPC  ?

• B29B 17/00 - Récupération de matières plastiques ou d'autres constituants des déchets contenant des matières plastiques
• B29B 17/02 - Séparation de matières plastiques des autres matières
• C08J 11/04 - Récupération ou traitement des résidus des polymères
• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères

Abrégé

There are provided processes for recycling waste such as polystyrene thermoplastic polymer waste and/or polystyrene thermoplastic copolymer waste as well as recycled polystyrene thermoplastic polymer and/or recycled thermoplastic copolymer that may, for example, be obtained from such processes. The processes can comprise dissolving the waste in cymene, xylene or ethylbenzene or a suitable solvent, to obtain a mixture followed by heating the mixture under acidic conditions and then optionally neutral conditions in the presence of a reducing agent then cooling to obtain a supernatant comprising polystyrene thermoplastic polymer and/or polystyrene thermoplastic copolymer and a solid waste residue. The supernatant can optionally be treated with a filtration aid, then the supernatant can be contacted with a hydrocarbon polystyrene non-solvent under conditions to obtain precipitated polystyrene thermoplastic polymer and/or precipitated polystyrene thermoplastic copolymer which can be washed with additional hydrocarbon polystyrene non-solvent, and optionally dried and formed into polystyrene thermoplastic polymer pellets and/or polystyrene thermoplastic copolymer pellets.

Classes IPC  ?

• B29B 17/00 - Récupération de matières plastiques ou d'autres constituants des déchets contenant des matières plastiques
• C08F 12/08 - Styrène
• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères

Abrégé

There are provided processes for recycling waste such as polystyrene thermoplastic polymer waste and/or polystyrene thermoplastic copolymer waste as well as recycled polystyrene thermoplastic polymer and/or recycled thermoplastic copolymer that may, for example, be obtained from such processes. The processes can comprise dissolving the waste in cymene, xylene or ethylbenzene or a suitable solvent, to obtain a mixture followed by heating the mixture under acidic conditions and then optionally neutral conditions in the presence of a reducing agent then cooling to obtain a supernatant comprising polystyrene thermoplastic polymer and/or polystyrene thermoplastic copolymer and a solid waste residue. The supernatant can optionally be treated with a filtration aid, then the supernatant can be contacted with a hydrocarbon polystyrene non-solvent under conditions to obtain precipitated polystyrene thermoplastic polymer and/or precipitated polystyrene thermoplastic copolymer which can be washed with additional hydrocarbon polystyrene non-solvent, and optionally dried and formed into polystyrene thermoplastic polymer pellets and/or polystyrene thermoplastic copolymer pellets.

Classes IPC  ?

• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères
• B29B 17/00 - Récupération de matières plastiques ou d'autres constituants des déchets contenant des matières plastiques
• C08F 12/08 - Styrène

Abrégé

The present disclosure relates to the use of a combination of ethylbenzene and a non-solvent having a boiling point at 1 atm of pressure of from 98 C to 110 C for recycling polystyrene waste. For example, the non-solvent is an alkane or mixtures thereof. The disclosure also relates to a composition for use in recycling polystyrene waste, wherein the composition comprises polystyrene waste, ethylbenzene and a non-solvent having a boiling point at 1 atm of pressure of from 98 C to 110 C. For example, the non-solvent is an alkane or mixtures thereof.

Classes IPC  ?

• C07C 9/14 - Hydrocarbures saturés acycliques de cinq à quinze atomes de carbone
• C07C 15/073 - Éthylbenzène
• C08F 12/08 - Styrène
• C08L 25/06 - Polystyrène

Abrégé

There are provided processes for recycling polystyrene waste. The processes can comprise dissolving said polystyrene waste in ethylbenzene under conditions to obtain a polystyrene/ethylbenzene mixture, adding the polystyrene/ethylbenzene mixture to a hydrocarbon polystyrene non-solvent under conditions to obtain precipitated polystyrene and washing the precipitated polystyrene with additional portions of hydrocarbon polystyrene non-solvent under conditions to obtain twice-washed polystyrene. The twice-washed polystyrene can optionally be dried and formed into polystyrene pellets. There is also provided recycled polystyrene obtained from such processes for recycling polystyrene waste.

Classes IPC  ?

• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères

Abrégé

There are provided processes for recycling polystyrene waste. The processes can comprise dissolving said polystyrene waste in ethylbenzene under conditions to obtain a polystyrene/ethylbenzene mixture, adding the polystyrene/ethylbenzene mixture to a hydrocarbon polystyrene non-solvent under conditions to obtain precipitated polystyrene and washing the precipitated polystyrene with additional portions of hydrocarbon polystyrene non-solvent under conditions to obtain twice-washed polystyrene. The twice-washed polystyrene can optionally be dried and formed into polystyrene pellets. There is also provided recycled polystyrene obtained from such processes for recycling polystyrene waste.

Classes IPC  ?

• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères

Abrégé

A recycled polystyrene having a melt flow index of less than 25 g/10min and a content of additive(s) of less than 1 wt%. The additives are chosen from coloring agents, fillers, flame retardants, lubricants, and plasticizers. The recycled polystyrene comprises about 0.05 wt% to about 0.3 wt% ethylbenzene and comprises heptane. Moreover, the recycled polystyrene comprises about 0.1 wt% to about 2 wt% of octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)-propionate. The recycled polystyrene allows for significantly increasing the life cycle of recycled polystyrene.

Classes IPC  ?

• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères
• C08K 5/01 - Hydrocarbures
• C08L 25/06 - Polystyrène

Abrégé

There are provided recycled polystyrene polymers having a melt flow index of less than about 25 g/10min. There are provided processes for recycling polystyrene waste. The processes can comprise dissolving said polystyrene waste in p-cymene under conditions to obtain a polystyrene/p-cymene mixture, adding the polystyrene/p-cymene mixture to a hydrocarbon polystyrene non-solvent under conditions to obtain precipitated polystyrene and washing the precipitated polystyrene with additional portions of hydrocarbon polystyrene non-solvent under conditions to obtain twice-washed polystyrene. The twice-washed polystyrene can optionally be dried and formed into polystyrene pellets. There is also provided recycled polystyrene obtained from such processes for recycling polystyrene waste.

Classes IPC  ?

• B29B 17/00 - Récupération de matières plastiques ou d'autres constituants des déchets contenant des matières plastiques
• C08F 112/08 - Styrène
• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères
• C08K 5/01 - Hydrocarbures
• C08L 25/06 - Polystyrène

Abrégé

There are provided recycled polystyrene polymers having a melt flow index of less than about 25 g/10min. There are provided processes for recycling polystyrene waste. The processes can comprise dissolving said polystyrene waste in p-cymene under conditions to obtain a polystyrene/p-cymene mixture, adding the polystyrene/p-cymene mixture to a hydrocarbon polystyrene non-solvent under conditions to obtain precipitated polystyrene and washing the precipitated polystyrene with additional portions of hydrocarbon polystyrene non-solvent under conditions to obtain twice-washed polystyrene. The twice-washed polystyrene can optionally be dried and formed into polystyrene pellets. There is also provided recycled polystyrene obtained from such processes for recycling polystyrene waste.

Classes IPC  ?

• B29B 17/02 - Séparation de matières plastiques des autres matières
• C08F 112/08 - Styrène
• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères
• C08L 25/06 - Polystyrène

Abrégé

Provided is use of a combination of p-cymene and a non-solvent having a boiling point at 1 atm of pressure of from 98°C to 110°C for recycling polystyrene waste. Also provided is a composition for use in recycling polystyrene waste, wherein the composition comprises polystyrene waste, p-cymene and a non-solvent having a boiling point at 1 atm of pressure of from 98°C to 110°C.

Classes IPC  ?

• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères

Abrégé

There are provided recycled polystyrene polymers having a melt flow index of less than about 25 g/10min. There are provided processes for recycling polystyrene waste. The processes can comprise dissolving said polystyrene waste in p-cymene under conditions to obtain a polystyrene/p-cymene mixture, adding the polystyrene/p-cymene mixture to a hydrocarbon polystyrene non-solvent under conditions to obtain precipitated polystyrene and washing the precipitated polystyrene with additional portions of hydrocarbon polystyrene non-solvent under conditions to obtain twice-washed polystyrene. The twice-washed polystyrene can optionally be dried and formed into polystyrene pellets. There is also provided recycled polystyrene obtained from such processes for recycling polystyrene waste.

Classes IPC  ?

• C08F 112/08 - Styrène
• B29B 17/02 - Séparation de matières plastiques des autres matières
• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères
• C08L 25/06 - Polystyrène

Produits et services

(1) Machine pour recycler le polystyrène provenant des industries, des commerces, des institutions, des municipalités, des centres de tri et des consommateurs (2) Résine de polystyrène recyclé (1) Service de collecte de polystyrène provenant des industries, des commerces, des institutions, des municipalités, des centres de tri et des consommateurs (2) Traitement et transformation de résidus de polystyrène