Abstract

A method for thermomechanically devulcanizing an elastomer, comprising the steps of: providing a vulcanized elastomer in the form of particles; supplying said particles upstream of an extruder which comprises at least one twin-screw having at least one reverse-pitch screw element, and which extruder is configured to move the particles within it; thermomechanically treating said particles; and supplying said devulcanized material to an outlet in order to recover a devulcanized material.

IPC Classes  ?

• C08J 11/12 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by dry-heat treatment only
• B01J 19/20 - Stationary reactors having moving elements inside in the form of helices, e.g. screw reactors
• B29B 7/48 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
• B29B 7/72 - Measuring, controlling or regulating
• B29B 7/74 - MixingKneading using other mixers or combinations of dissimilar mixers
• B29B 7/82 - Heating or cooling
• B29B 17/04 - Disintegrating plastics
• B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor

Abstract

The present invention relates to a composition comprising: - 30% to 90% by weight rubber which mainly comprises EPDM; - a compatibilizer, preferably in solid or liquid form, which comprises 0.5 to 25% by weight of a thermoplastic polymer; - 0.1% to 10% by weight of an activating agent; characterized in that said composition comprises a total of at least 0.25% by weight bound sulfur.

IPC Classes  ?

• C08L 17/00 - Compositions of reclaimed rubber
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition

Abstract

The present invention relates to a composition comprising: - 30% to 90% by weight rubber; - 0.1% to 10% by weight of an activating agent; - 0.5 to 5% by weight of a vulcanizing agent containing sulfur; characterized in that said composition comprises a total of at least 0.25% by weight bound sulfur and 0.1% to 5% by weight free sulfur.

IPC Classes  ?

• C08K 3/06 - Sulfur
• C08K 3/22 - OxidesHydroxides of metals
• C08K 5/09 - Carboxylic acidsMetal salts thereofAnhydrides thereof
• C08K 5/47 - Thiazoles
• C08L 17/00 - Compositions of reclaimed rubber
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition

Abstract

The present invention relates to a composition comprising: - 30% to 90% by weight rubber which mainly comprises EPDM; - 0.1% to 10% by weight of an activating agent ;- 0.5 to 5% by weight of a vulcanizing agent containing sulfur; characterized in that said composition comprises a total of at least 0.25% by weight bound sulfur and 0.1 to 5% by weight free sulfur.

IPC Classes  ?

• C08K 3/06 - Sulfur
• C08K 3/22 - OxidesHydroxides of metals
• C08K 5/09 - Carboxylic acidsMetal salts thereofAnhydrides thereof
• C08K 5/47 - Thiazoles
• C08L 17/00 - Compositions of reclaimed rubber
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition

Abstract

The present invention relates to a composition comprising: - 30% to 90 % by weight rubber which predominantly comprises EPDM; - at least 5% bitumen; - 0.1% to 10% by weight of an activating agent; - 0.5 to 5% by weight of a vulcanizing agent; said composition comprising a total of at least 0.25% by weight bound sulfur and 0.1 to 5% by weight free sulfur.

IPC Classes  ?

• C08L 17/00 - Compositions of reclaimed rubber
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition

Abstract

The present invention relates to a composition comprising: - 30% to 90% by weight rubber predominantly comprising NR and/or IR; - 0.1 to 10% by weight of an activating agent; - 0.5 to 5% by weight of a vulcanizing agent containing sulfur; characterized in that said composition comprises a total of at least 0.25% by weight bound sulfur and 0.1 to 5% by weight free sulfur.

IPC Classes  ?

• C08K 3/06 - Sulfur
• C08K 3/22 - OxidesHydroxides of metals
• C08K 5/09 - Carboxylic acidsMetal salts thereofAnhydrides thereof
• C08K 5/47 - Thiazoles
• C08L 17/00 - Compositions of reclaimed rubber
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition

Abstract

The present invention relates to a composition comprising: - 30% to 90% by weight rubber predominantly comprising GTR; - 0.1 to 10% by weight of an activating agent; - 0.5 to 5% by weight of a vulcanizing agent containing sulfur; characterized in that said composition comprises a total of at least 0.25% by weight bonded sulfur and 0.1 to 5% by weight free sulfur.

IPC Classes  ?

• C08K 3/06 - Sulfur
• C08K 3/22 - OxidesHydroxides of metals
• C08K 5/09 - Carboxylic acidsMetal salts thereofAnhydrides thereof
• C08K 5/47 - Thiazoles
• C08L 17/00 - Compositions of reclaimed rubber
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition

Abstract

The present invention relates to a composition comprising: - 30% to 90% by weight rubber mainly comprising GTR; - a compatibilizing agent, preferably in solid or liquid form, which comprises 0.5 to 25% by weight of a thermoplastic polymer; - 0.1 to 10% by weight of an activating agent; characterized in that said composition comprises a total of at least 0.25% by weight bound sulfur.

IPC Classes  ?

• C08L 17/00 - Compositions of reclaimed rubber
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition

Abstract

Resilient sole 1 which is attached to a concrete layer (2) or which is positioned between a concrete layer (2) and ballast (3), and which is formed by a layer (4) of recycled rubber, in the revulcanised state after devulcanisation, and a layer (5) of structured fibres which is arranged so as to be in contact with the rubber layer, the fibres being partially impregnated in the rubber layer and having a free thickness (8) of structured fibres, assembly comprising the sole and method for manufacturing same.

IPC Classes  ?

• E01B 26/00 - Tracks or track components not covered by any one of main groups
• E01B 1/00 - BallastwayOther means for supporting the sleepers or the trackDrainage of the ballastway

Abstract

The invention relates to a method for producing rubber material to be crosslinked, the method comprising the continuous extrusion of crosslinked rubber as granules and/or chips, and comprising i) decrosslinking by mechanically shearing the granules and/or chips and increasing the temperature until a decrosslinked paste is formed; ii) cooling the decrosslinked paste by optionally adding at least one additive; and iii) mixing the cooling decrosslinked paste with at least one crosslinking agent and collecting, at the output of said continuous extrusion, a paste-like mixture forming the rubber material to be crosslinked.

IPC Classes  ?

• B29B 7/66 - Recycling the material
• B29B 7/88 - Adding charges
• B29B 13/02 - Conditioning or physical treatment of the material to be shaped by heating
• B29B 17/04 - Disintegrating plastics
• B29C 35/02 - Heating or curing, e.g. crosslinking or vulcanising
• B29C 48/275 - Recovery or reuse of energy or materials
• B29C 48/385 - Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in separate barrels

Abstract

The invention relates to a method for producing rubber material to be crosslinked, the method comprising the continuous extrusion of crosslinked rubber as granules and/or chips, and comprising i) decrosslinking by mechanically shearing the granules and/or chips and increasing the temperature until a decrosslinked paste is formed; ii) cooling the decrosslinked paste by optionally adding at least one additive; and iii) mixing the cooling decrosslinked paste with at least one crosslinking agent and collecting, at the output of said continuous extrusion, a paste-like mixture forming the rubber material to be crosslinked.

IPC Classes  ?

• B29C 48/275 - Recovery or reuse of energy or materials
• B29C 48/385 - Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in separate barrels
• B29B 7/66 - Recycling the material
• B29B 7/88 - Adding charges
• B29B 17/04 - Disintegrating plastics
• B29C 35/02 - Heating or curing, e.g. crosslinking or vulcanising
• B29B 13/02 - Conditioning or physical treatment of the material to be shaped by heating

Goods & Services

Rubber, gutta-percha, elastomer, gum and goods made from these materials and not included in other classes. Commercial import-export services for goods and materials of rubber and recycled rubber. Recycling of rubbers and elastomeric materials; crushing of rubber trash and waste; manufacture of recycled rubber and rubber products and materials.

Goods & Services

(1) Caoutchouc, gutta-percha, élastomère, gomme et produits en ces matières non compris dans d'autres classes. (1) Services commerciaux d'import-export de produits et matériaux en caoutchouc et caoutchouc recyclé. (2) Recyclage de caoutchoucs et matériaux élastomères; broyage de déchets et rebuts de caoutchouc; fabrication de produits et matériaux en caoutchouc et caoutchouc recyclé.

Goods & Services

Recycling of rubbers and elastomeric materials; crushing of rubber trash and waste; custom manufacture of recycled rubber and rubber products and materials Rubber, raw or semi-worked, gutta-percha, elastomer in the nature of thermoplastic elastomer resins in pellet form for use in further manufacture, unprocessed gum Commercial import-export services, namely, transportation of the merchandise of others in the nature of goods and materials of rubber and recycled rubber

Abstract

Resilient sole 1 which is attached to a concrete layer (2) or which is positioned between a concrete layer (2) and ballast (3), and which is formed by a layer (4) of recycled rubber, in the revulcanised state after devulcanisation, and a layer (5) of structured fibres which is arranged so as to be in contact with the rubber layer, the fibres being partially impregnated in the rubber layer and having a free thickness (8) of structured fibres, assembly comprising the sole and method for manufacturing same.

IPC Classes  ?

• E01B 1/00 - BallastwayOther means for supporting the sleepers or the trackDrainage of the ballastway
• E01B 3/46 - Transverse or longitudinal sleepersOther means resting directly on the ballastway for supporting rails made from different materials

Abstract

Resilient sole 1 which is attached to a concrete layer (2) or which is positioned between a concrete layer (2) and ballast (3), and which is formed by a layer (4) of recycled rubber, in the revulcanised state after devulcanisation, and a layer (5) of structured fibres which is arranged so as to be in contact with the rubber layer, the fibres being partially impregnated in the rubber layer and having a free thickness (8) of structured fibres, assembly comprising the sole and method for manufacturing same.

IPC Classes  ?

• E01B 1/00 - BallastwayOther means for supporting the sleepers or the trackDrainage of the ballastway
• E01B 3/46 - Transverse or longitudinal sleepersOther means resting directly on the ballastway for supporting rails made from different materials

Abstract

The invention relates to a method for manufacturing a mat from recycled rubber, which comprises mixing (4) granular recycled rubber and binder, transferring the mixture onto a conveyor belt (9), compressing (14) the mixture on the conveyor belt at a curing temperature, and adding liquid water (2) to the mixture prior to the compression step, the added water causing, on contact with the binder, a curing of the binder during the compression, the transfer step comprising a deposition of the rubber-binder mixture on the conveyor belt following a reciprocating movement (F2) transversely to the direction of travel (F1) of the belt, the method further comprising, after this deposition step, a step of levelling (11) said rubber-binder mixture on the travelling conveyor belt, to a predetermined uniform thickness.

IPC Classes  ?

• B29C 43/34 - Feeding the material to the mould or the compression means
• B29C 43/48 - Endless belts
• B29C 43/52 - Heating or cooling
• B29C 35/04 - Heating or curing, e.g. crosslinking or vulcanising using liquids, gas or steam
• B29K 21/00 - Use of unspecified rubbers as moulding material
• B29D 99/00 - Subject matter not provided for in other groups of this subclass
• B29L 31/30 - Vehicles, e.g. ships or aircraft, or body parts thereof
• B29L 31/00 - Other particular articles
• B29B 7/12 - MixingKneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft
• B29K 105/26 - Scrap
• B29B 7/16 - MixingKneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft with paddles or arms
• B29B 7/58 - Component parts, details or accessoriesAuxiliary operations
• B29B 7/74 - MixingKneading using other mixers or combinations of dissimilar mixers
• B29B 7/94 - Liquid charges
• C08L 19/00 - Compositions of rubbers not provided for in groups
• C08L 75/04 - Polyurethanes
• B29K 75/00 - Use of polyureas or polyurethanes as moulding material

Goods & Services

Rubber, gutta-percha, elastomer, gum and goods made from these materials. Trading of products and materials made of rubber and recycled rubber. Recycling of rubber and elastomeric materials; Crushing of waste and Scrap rubber; Manufacture of products and materials made of rubber and recycled rubber.