EP3383945A1 - Composition bitume-polymere et son procede de preparation - Google Patents
Composition bitume-polymere et son procede de preparationInfo
- Publication number
- EP3383945A1 EP3383945A1 EP16819967.7A EP16819967A EP3383945A1 EP 3383945 A1 EP3383945 A1 EP 3383945A1 EP 16819967 A EP16819967 A EP 16819967A EP 3383945 A1 EP3383945 A1 EP 3383945A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bitumen
- polymer composition
- bpa
- compound
- composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D195/00—Coating compositions based on bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2555/00—Characteristics of bituminous mixtures
- C08L2555/40—Mixtures based upon bitumen or asphalt containing functional additives
- C08L2555/60—Organic non-macromolecular ingredients, e.g. oil, fat, wax or natural dye
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2555/00—Characteristics of bituminous mixtures
- C08L2555/40—Mixtures based upon bitumen or asphalt containing functional additives
- C08L2555/80—Macromolecular constituents
Definitions
- the present invention relates to a process for preparing a bitumen-polymer composition.
- This composition can be stored and / or transported cold in an intermediate state and then converted into an application-ready composition having satisfactory elastic properties.
- the invention also relates to a kit consisting of a bitumen-polymer composition, in the form of bread, comprising a first additive and a capsule comprising a second additive, as well as the use of this kit in the process for the preparation of a composition bitumen-polymer according to the invention having satisfactory elastic properties.
- bitumen-polymer compositions have been used in the road sector and mainly for the manufacture of road pavements. These bitumen-polymer compositions have improved mechanical and rheological properties compared to conventional bitumen compositions, in particular they have elastic properties superior to those of conventional bitumen compositions.
- bitumen-polymer compositions are stored and transported hot, in bulk, in tanker trucks or by boats at elevated temperatures of the order of 120 ° C to 200 ° C.
- the storage and transport of hot bitumen has certain disadvantages.
- the transport of hot bitumen in liquid form is considered dangerous and it is very framed from a regulatory point of view. This mode of transport presents no particular difficulties when the equipment and the transport infrastructures are in good condition. Otherwise, it can become problematic: if the tanker is not sufficiently insulated, the bitumen may become viscous during a trip too long. Delivery distances for bitumen are therefore limited.
- the maintenance of bitumen at high temperatures in tanks or tank trucks consumes energy. In addition, maintaining the temperature of the bitumen for a given period can affect the properties of the bitumen, in particular due to aging phenomena and thus change the final performance of the asphalt.
- bitumen at ambient temperature in metal drums By way of example, mention may be made of the transport of bitumen at ambient temperature in metal drums. This means is increasingly questionable from an environmental point of view because the cold bitumen stored in the barrels must be reheated before use as a road binder. However, this operation is difficult to implement for this type of packaging and the drums are a waste after use. On the other hand, the storage of cold bitumen in drums leads to losses, because the bitumen is very viscous, and part of the product remains on the walls of the drum during the transfer of the bitumen to the tanks of the production units. As for handling and transporting bituminous products in these drums, they may be difficult and dangerous if specialized drum handling equipment is not available at the carriers or where the bitumen is used. In addition, the barrels used to transport the bitumen are not recovered again to transport the bitumen and therefore generate additional waste to be reprocessed.
- bituminous products in paper or thermoplastic bags such as polypropylene or polyethylene
- US patent application 2011/0290695 describes a system for dispensing and packaging bituminous products in block form.
- Each block of bitumen is surrounded by a film of bituminous composition consisting of about 10 to 30% by weight of natural bitumen and about 5 to 25% by weight of a synthetic rubber polymer.
- the bituminous composition film is melted with the bituminous product and is fully compatible with the molten bitumen.
- bituminous products packaged in the form of paper bags or of thermoplastic material can flow during their handling, storage and transport, because the bags or films made of thermoplastic material can be pierced, increasing the risk of deformation. and leakage, especially when the outside temperature is high.
- the bags or films of thermoplastic material are pierced, the bitumen flows and the bags or blocks surrounded by thermoplastic film stick together.
- the handling of the bags or blocks surrounded by thermoplastic material film thus deteriorated becomes impossible, which renders them unusable.
- US-4,332,704 discloses a bitumen composition formed by reacting a bitumen with a carboxylic acid or anhydride and a polyol.
- the resulting polyester modified bitumen may be crosslinked by means of a vulcanizing agent.
- US-4,338,231 discloses a bitumen composition formed by reacting a bitumen with a carboxylic acid or anhydride and a polyol, followed by reaction with a polyester and a vinyl aromatic monomer.
- the object of the present invention is to provide an improved transportable and / or cold storable bitumen-polymer composition.
- Another object of the invention is to provide a bitumen / polymer composition for easy handling of road bitumen during handling operations.
- Another objective of the invention is to propose an ecological and economical process for transporting road bitumen and to avoid the use of additional means for maintaining the temperature of said bitumen during transport and / or storage.
- This objective has been achieved by adding an acidic compound to the bitumen-polymer base.
- additives in particular acidic compounds in a bitumen-polymer base
- bitumen-polymer base is not always without effect on the properties of the composition, in particular on its use properties, and in particular the elastic properties of the compositions. bitumen-polymer.
- Another object of the invention has been to provide a bitumen / polymer composition which can be stored and transported under cold conditions and which has elastic properties comparable to those of bitumen-polymer compositions containing no acidic compounds.
- An object of the present invention is to provide a bitumen / polymer composition and a process for preparing this composition, such that the elastic properties of the bitumen-polymer compositions obtained are comparable to those of bitumen-polymer compositions without acid compound.
- the object of the present invention is to provide a bitumen-polymer composition which in an intermediate state is storable and / or cold-transportable and a method for restoring the elastic properties, in particular the elastic return, of these bitumen compositions -polymer.
- Another object of the present invention is to provide a kit for preparing, from a bitumen-storable and / or cold-transportable polymer composition, a bitumen-polymer composition whose elastic properties are comparable to those of the bitumen compositions. polymer without acid compound.
- the invention relates to a method for preparing a bitumen-polymer composition comprising:
- bitumen-polymer composition comprising at least one bitumen-polymer base and an additive of general formula (I) R 1 - (COOH) z in which R 1 is a linear or branched hydrocarbon-based chain , saturated or unsaturated having from 4 to 68 carbon atoms, and z an integer ranging from 1 to 4,
- bitumen-polymer composition (BPa) and a compound (II) chosen from compounds capable of reacting according to an acid-base reaction, an amidation reaction or an esterification reaction with a carboxylic acid group of the additive (I).
- the polymer is an elastomer.
- the method comprises at least one step of storage and / or cold transport of the composition (BPa) between steps a) and b).
- the composition (BPa) is stored and / or transported in the form of bitumen bars.
- bitumen-polymer composition (BPa) comprises from 0.1% to 5% by weight of the additive (I) relative to the total weight of the bitumen-polymer composition (BPa).
- step b) of the process comprises the steps of: i) heating the bitumen-polymer composition (BPa) at a temperature of between 100 ° C. and 200 ° C. and stirring up to 100 ° C. obtaining a homogeneous mixture, ii) adding the compound (II) simultaneously or after step i).
- the compound (II) is chosen from:
- a basic organic or inorganic metal salt chosen from alkali metal salts, alkaline earth metal salts and mixtures thereof, and
- the compound (II) is chosen from fatty chain polyamines obtained by reacting:
- R represents a linear hydrocarbon chain, saturated or unsaturated, comprising from 8 to 22 carbon atoms, and n an integer of 2 to 5;
- the compound (II) is a nitrogen compound of general formula (IIIa):
- R represents a linear hydrocarbon chain, saturated or unsaturated, comprising from 8 to 22 carbon atoms and p represents an integer equal to (n-1).
- the compound (II) is an alcohol which comprises 1, 2 or 3 -OH group (s) and a linear or branched, saturated or unsaturated carbon chain containing from 2 to 36 carbon atoms.
- the compound (II) is glycerol.
- the compound (II) is a basic inorganic metal salt in the form of an alkali metal or alkaline earth metal oxide or hydroxide, such as the hydroxides or oxides of lithium, of sodium, of potassium, of magnesium or calcium.
- the content of the compound (II) added in step ii) ranges from 0.05% to 5% by weight, preferably from 0.05% to 3% by weight, more preferably from 0.1% to 2% by weight relative to the total mass of the bitumen-polymer composition (BPa) of step i).
- the additive (I) is a diacid of general formula
- the additive (I) is a diacid chosen from the group consisting of adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, undecanedioic acid, 1,2-dodecanedioic acid and tetradecanedioic acid.
- the invention also relates to a polymer bitumen composition obtained by the method described above.
- the composition has an elastic return measured at 25 ° C according to standard NF EN 13398 of at least 70% with respect to the elastic return of the bitumen base-non-crosslinked polymer measured under the same conditions.
- the invention also relates to the use of the composition defined above for the manufacture of a surface coating, a hot mix, a warm mix, a cold mix, a cold-cast mix, a serious emulsion, said composition being associated with aggregates and / or recycling costs.
- the invention also relates to a kit that can be used in the implementation of the method according to any one of the preceding claims comprising at least:
- a bitumen-polymer composition comprising at least one polymeric bitumen base and an additive (I), the composition being cold-solid and in divided form,
- a capsule comprising a compound (II).
- bitumen-polymer composition is in the form of bread (s).
- the bitumen-polymer composition (BPa) comprises on one of its faces, a cavity for housing all or part of the capsule.
- the capsule is housed in whole or part in said cavity removably.
- the capsule comprises a shell of hot melt plastic film.
- the invention also relates to the use of the kit as defined above in the process for preparing a bitumen-polymer composition according to the invention.
- a compound (II) chosen from compounds capable of reacting according to an acid-base reaction, an amidation reaction or an esterification reaction with a carboxylic acid group of the additive (I).
- bitumen-polymer composition comprising the additive of general formula (I) defined above, this composition being storable and / or transportable cold,
- bitumen-polymer composition • on the other hand the hot mix of the bitumen-polymer composition (BPa) and the compound (II).
- This method makes it possible to transform a bitumen-polymer composition (BPa) that is storable and / or transportable in a cold state into a bitumen-polymer composition (BPb), by adding a compound (II), for its application, so that the elastic properties of said bitumen-polymer composition (BPb) are comparable to the elastic properties of a bitumen-polymer base or of a conventional bitumen-polymer composition comprising no additive (I).
- composition may be stored, transported and / or marketed in kit form comprising at least:
- a bitumen-polymer composition (BPa) comprising the additive (I), cold-solid and in divided form,
- bitumen-polymer composition is meant a bituminous composition consisting of one or more bitumen bases and comprising one or more polymers.
- bitumen-polymer composition is intended for road application.
- bituminous mixes are used as materials for the construction and maintenance of pavement bodies and their pavement, as well as for the realization of all road works. For example, superficial coatings, hot mixes, cold mixes, cold-cast asphalts, deep emulsions, base, binding, hooking and rolling layers, and other combinations of coatings can be mentioned.
- an asphalt binder and road aggregate having particular properties, such as anti-rutting layers, draining asphalts, or asphalts (mixing between a binder and sand-like aggregates).
- bitumen-polymer composition means a bitumen-polymer composition comprising no additive (I) or which has not been obtained by heating a bitumen-polymer composition comprising an additive (I).
- bitumen-polymer composition (BPa) storable and / or transportable cold
- a bitumen-polymer composition (BPa) that can be stored and / or transported by cold is made by contacting at least:
- R 1 is a linear or branched, saturated or unsaturated hydrocarbon-based chain containing from 4 to 68 carbon atoms, and z an integer varying from 1 to 4.
- bitumen-polymer composition that is storable and / or cold-transportable is prepared in:
- R 1 - (COOH) z in which R 1 is a linear or branched, saturated or unsaturated hydrocarbon-based chain containing from 4 to 68 carbon atoms, and z an integer ranging from 1 to 4.
- bitumen bases that may be used according to the invention, mention may first be made of bitumens of natural origin, those contained in deposits of natural bitumen, natural asphalt or bituminous sands and bitumens originating from the refining of crude oil. .
- the bitumen bases according to the invention are advantageously chosen from bitumen bases originating from the refining of crude oil.
- the bitumen bases may be chosen from bitumen bases or mixtures of bitumen bases from the refining of crude oil, in particular bitumen bases containing asphaltenes.
- the bitumen bases can be obtained by conventional processes for the manufacture of bitumen bases in a refinery, in particular by direct distillation and / or vacuum distillation of the oil.
- bitumen bases may optionally be visbroken and / or deasphalted and / or rectified in air.
- the various bitumen bases obtained by the refining processes can be combined with each other to obtain the best technical compromise.
- the bitumen base can also be a bitumen base for recycling.
- the bitumen bases may be bitumen bases of hard grade or soft grade.
- the bitumen bases according to the invention have a penetrability, measured at 25 ° C. according to the EN 1426 standard, between 5 and 300 1/10 mm, preferably between 10 and 100 1/10 mm, more preferably between 30 and 100 1 / 10 mm.
- the so-called “needle penetration” measurement is carried out by means of a standardized test NF EN 1426 at 25 ° C. (P25). This characteristic of penetrability is expressed in tenths of a millimeter (dmm or 1/10 mm).
- the needle penetration, measured at 25 ° C, according to the standardized test NF EN 1426, represents the measurement of the penetration into a sample of bitumen, after a time of 5 seconds, of a needle whose weight with its support is 100 g.
- the NF EN 1426 standard replaces the homologated NF T 66-004 standard of December 1986 with effect from December 20, 1999 (decision of the Chief Executive Officer of AFNOR dated November 20, 1999).
- the polymer included in the bitumen-polymer composition according to the invention is a known bitumen elastomer, preferably chosen from SB (block copolymer of styrene and butadiene), SBS (styrene-butadiene-styrene block copolymer) copolymers, SIS (styrene-isoprene-styrene), SBS * (star styrene-butadiene-styrene block copolymer), SBR (styrene-b-butadiene rubber), EPDM (ethylene propylene modified diene), polychloroprene, polynorbornene, natural rubber, polybutene, polyisobutylene, SEBS (copolymer of styrene, ethylene, butylene and styrene).
- SB block copolymer of styrene and butadiene
- SBS styrene-but
- bitumen-polymer composition comprises from 0.5% to 10% by weight, preferably from 3% to 10% by weight, more preferably from 5% to 10% by weight. % by weight of polymer relative to the total mass of said composition.
- bitumen-polymer composition comprises from 0.5% to 10% by weight, preferably from 1% to 6% by weight, more preferably from 1% to 10% by weight. , 5% to 4% by weight of polymer relative to the total mass of said composition.
- bitumen-polymer composition (BPa) storable and / or cold transportable according to the invention is a bitumen / crosslinked polymer composition.
- Sulfur donor coupling agents that can be used to crosslink the polymer included in the bitumen-polymer composition (BPa) are of a very varied nature and are chosen as a function of the polymer to be crosslinked.
- the sulfur donor coupling agent is advantageously chosen from the group consisting of elemental sulfur, hydrocarbyl polysulfides, sulfur-donor vulcanization accelerators, mixtures of such products with one another and / or with accelerators of sulfur. non-sulfur donor vulcanization.
- the elemental sulfur that can be used to form part or all of the crosslinking agent is, advantageously, sulfur in flower and, preferably, sulfur crystallized in the orthorhombic form and known as alpha sulfur.
- the additive compound has the following general formula (I):
- R 1 is a linear or branched, saturated or unsaturated hydrocarbon-based chain comprising from 4 to 68 carbon atoms, preferably from 4 to 54 carbon atoms, more preferably from 4 to 36 carbon atoms, and z an integer varying from 1 to 4, preferably 2 to 4, more preferably 2.
- the group R 1 is preferably a linear and saturated hydrocarbon chain of formula C w H 2 w with w an integer ranging from 4 to 22, preferably from 4 to 12.
- the preferred diacids are as follows:
- the diacid (I) is sebacic acid.
- the diacids may also be diacid dimers of unsaturated fatty acid (s), that is to say dimers formed from at least one unsaturated fatty acid, for example from a single fatty acid. unsaturated or from two different unsaturated fatty acids.
- the diacid dimers of unsaturated fatty acid (s) are conventionally obtained by intermolecular dimerization reaction of at least one unsaturated fatty acid (reaction of Diels Aid for example).
- Preferably, only one type of unsaturated fatty acid is dimerized. They derive in particular from the dimerization of an unsaturated fatty acid, in particular C 6 to C 34, especially C 12 to C 22 , in particular C 16 to C 20 , and more particularly C 18 .
- a preferred fatty acid dimer is obtained by dimerization of linoleic acid, which can then be partially or fully hydrogenated.
- Another preferred fatty acid dimer is obtained by dimerization of methyl linoleate.
- the bitumen-polymer composition (BPa) comprises from 0.1% to 5% by weight, preferably from 0.5% to 4% by weight, more preferably from 1% to 2.5% by weight of the additive (I) relative to the total mass of the bitumen-polymer composition (BPa).
- bitumen-polymer composition (BPa) comprising an additive of formula (I) may also further comprise other additives such as adhesiveness dopes and / or surfactants; waxes of animal, vegetable or hydrocarbon origin; paraffins such as polymethylene paraffins and polyethylene paraffins; fluxes such as oils based on animal and / or vegetable fats or hydrocarbon oils of petroleum origin; resins of vegetable origin such as rosins; anti-foam additives; detergent and / or anti-corrosion additives; lubricant additives or anti-wear agent; crystallization modifying additives; additives inhibiting paraffin deposits; pour point depressant additives; the modifiers of low temperature rheology; antioxidants; metal passivators; acid neutralizers; additives to lower the mixing temperature of asphalt and asphalt; additives for improving the adhesion of bituminous binders to fillers and aggregates such as polyisobutylene succinimides; acids such as polyphosphoric acid
- additives other than the additive of formula (I) are used in amounts well known to those skilled in the art, depending on the nature of the additive, depending on the bitumen base and expected properties.
- bitumen-polymer composition (BPa) comprising an additive of formula (I) may also further comprise an olefinic polymer adjuvant.
- the olefin polymer adjuvant is preferably selected from the group consisting of
- ethylene / glycidyl (meth) acrylate copolymers (b) ethylene / monomer A / monomer B terpolymers and (c) copolymers resulting from the grafting of a monomer B onto a polymer substrate.
- the ethylene / glycidyl (meth) acrylate copolymers are advantageously chosen from random or block copolymers, preferably random copolymers of ethylene and a monomer chosen from glycidyl acrylate and glycidyl methacrylate, comprising from 50% to 99.7% by weight, preferably from 60% to 95% by weight, more preferably 60% to 90% by weight of ethylene.
- the terpolymers are advantageously chosen from random or sequential terpolymers, preferably random, of ethylene, a monomer A and a monomer B.
- the A monomer is selected from vinyl acetate and alkyl acrylates or methacrylates to C 6.
- Monomer B is selected from glycidyl acrylate and glycidyl methacrylate.
- the ethylene / monomer A / monomer B terpolymers comprise from 0.5% to 40% by weight, preferably from 5% to 35% by weight, more preferably from 10% to 30% by weight of units derived from monomer A and from From 0.5% to 15% by weight, preferably from 2.5% to 15% by weight of units derived from monomer B, the remainder being formed from units derived from ethylene.
- the copolymers result from the grafting of a B monomer selected from glycidyl acrylate and glycidyl methacrylate onto a polymeric substrate.
- the polymer substrate consists of a polymer chosen from polyethylenes, in particular low density polyethylenes, polypropylenes, statistical or sequential copolymers, preferably random copolymers of ethylene and vinyl acetate, and statistical or block copolymers, preferably statistical copolymers.
- ethylene and alkyl acrylate or methacrylate to C 6 comprising from 40% to 99.7% by weight, preferably from 50% to 99% by weight ethylene.
- Said graft copolymers comprise from 0.5% to 15% by weight, preferably from 2.5% to 15% by weight of grafted units derived from monomer B.
- the olefinic polymer builder is preferably selected from the (b) ethylene / monomer A / monomer B terpolymers described above.
- the additive polymer is selected from olefinic random terpolymers of ethylene, a monomer A chosen from acrylates or methacrylates of alkyl to C 6 and a monomer B selected from glycidyl acrylate and glycidyl methacrylate, comprising from 0.5% to 40% by weight, preferably from 5% to 35% by weight, more preferably from 10% to 30% by weight of units derived from monomer A and from 0.5% by weight. % to 15% by weight, preferably from 2.5% to 15% by weight of units derived from monomer B, the remainder being formed from units derived from ethylene.
- the bitumen-polymer composition (BPa) further comprises from 0.05% to 15% by weight, preferably from 0.1% to 10% by weight, more preferably from 0.5% to 6% by weight of the olefinic polymer adjuvant relative to the total mass of the bitumen-polymer composition (BPa).
- the bitumen-polymer composition (BPa) is prepared by hot mixing the components. It is carried out at manufacturing temperatures of between 100 ° C. and 200 ° C., preferably between 140 ° C. and 200 ° C., more preferably between 140 ° C. and 170 ° C., and with stirring for a period of at least 10 ° C. minutes, preferably between 30 minutes and 10 hours, more preferably between 1 hour and 6 hours.
- manufactured temperature means the heating temperature of the bitumen base before mixing as well as the mixing temperature. The temperature and the duration of the heating vary according to the quantity of bitumen used and are defined by the standard NF EN 12594.
- bitumen-polymer composition (BPa) is transportable and / or cold-storable, said bitumen-polymer composition (BPa) being transported and / or stored in divided form.
- Transportable and / or cold-storable means transport and / or storage at a temperature below 100 ° C.
- the temperature is preferably between 20 ° C and 90 ° C, preferably between 20 ° C and 80 ° C, more preferably between 20 ° C and 70 ° C.
- bitumen-polymer composition is packaged in discrete unitary units for handling by an individual or a machine, unlike a composition prepared and stored hot in a tank or a reactor.
- bitumen-polymer composition is packaged in the form of bitumen bars.
- bitumen-polymer composition could be in the form of granules or particles.
- bitumen-polymer composition According to a particular embodiment of the invention, the bitumen-polymer composition
- BPa bread (s) bitumen.
- the bitumen cake according to the invention preferably has a volume of between 1000 cm 3 and 50000 cm 3 , preferably between 5000 cm 3 and 30000 cm 3 , more preferably between 10000 cm 3 and 25000 cm 3 , even more preferably between 14000 cm 3 and 25000 cm 3 .
- bitumen bread When the bitumen roll is handled manually by a person, the mass of bitumen bread can vary from 1 to 20 kg, and from 20 to 50 kg in the case of handling by two people. When handling is carried out by mechanical equipment, the mass of bitumen bread can vary from 50 to 1000 kg.
- the bitumen cake is made from a bitumen-polymer composition (BPa) as described above according to any known method, for example according to the manufacturing method described in the document US2011 / 0290695.
- the bitumen roll is packaged with a hot-melt film according to any known method, preferably a polypropylene film, polyethylene or a mixture of polyethylene and polypropylene.
- the bitumen-polymer composition (BPa) packaged in bitumen roll packaged with a hot-melt film has the advantage of being ready for use, that is to say that it can be heated directly as described below. below in step i) of the process according to the invention.
- the hot melt material which melts with the bitumen-polymer composition (BPa) does not affect the properties of said composition.
- the bitumen cake may also be packaged in a silicone carton according to any known method.
- bitumen cake is packaged in a silicone carton by hot casting the bitumen-polymer composition comprising an additive in a carton whose wall of the inner face is silicone and then cooled, the dimensions of the carton being adapted to the weight and or the volume of bitumen bread desired.
- bitumen cake is removed from the carton.
- bitumen-polymer composition (BPa) When the roll of bitumen-polymer composition (BPa) according to the invention is packaged with a hot-melt film or is packaged in a carton, the applicant has demonstrated that the deterioration of said hot-melt film or said carton during transport and / or storage cold said bitumen bread did not cause the flow of bitumen. Therefore, the bitumen rolls according to the invention retain their original shape and do not stick to each other during their transport and / or cold storage even if the hot melt film or cardboard is damaged.
- the absence of creep of the bitumen-polymer composition in the form of bread during its transport and / or cold storage is due to the presence of at least one chemical additive of formula (I) within the bitumen-polymer composition .
- bitumen-polymer composition (BPa) according to the invention is in the form of granules.
- bitumen granules are obtained by shaping the polymer bitumen composition (BPa) as described above according to any known method, for example according to the manufacturing method described in the document US Pat. No. 3,026,568, the document WO 2009 / 153324 or WO 2012/168380.
- the shaping of the granules can be carried out by dripping, in particular using a drum.
- Other techniques can be used in the process for manufacturing bitumen granules, in particular molding,
- the bitumen granules further comprise at least one anti-caking agent, preferably of mineral or organic origin.
- the bitumen granules are covered on at least a portion of their surface with an anti-caking agent, preferably over their entire surface.
- bitumen-polymer composition ready for application
- bitumen-polymer composition ready for application, especially in the form of road bitumen, is carried out using a bitumen-polymer (BPa) composition comprising the additive of general formula ( I).
- bitumen-polymer composition (BPa) has been stored and / or transported, in solid form, divided, in particular in the form of bitumen bars, between its manufacture and its implementation. in the preparation of a bitumen-polymer composition (BPb) ready for application.
- the method comprises at least one step of hot mixing the bitumen-polymer composition (BPa) and the compound (II) capable of reacting according to an acid-base reaction, an amidation reaction or an esterification reaction with the group carboxylic acid of the additive (I).
- This process comprises the steps of:
- bitumen-polymer composition comprising the additive of general formula (I) at a temperature of between 100 ° C. and 200 ° C. and stirring until a mixture is obtained homogeneous
- bitumen-polymer composition (BPb) ready for application.
- bitumen-polymer composition (BPb) has very satisfactory elastic properties, in particular an elastic return measured at 25 ° C. according to standard NF EN 13398 greater than or equal to 70%.
- the temperature and duration of the heating of step i) can vary according to the amount of bitumen used and are defined by the standard NF EN 12594.
- the heating of step i) is between 120 ° C and 200 ° C, more preferably between 140 ° C and 200 ° C, even more preferably between 140 ° C and 170 ° C.
- the stirring of step i) is carried out for a period of at least 15 minutes, more preferably between 15 minutes and 10 hours, even more preferably between 15 minutes and 6 hours.
- the composition (BPa) may also be mixed and heated with one or more bitumen bases not comprising a polymer and comprising no additive of formula (I).
- the addition of an additive (I) in a bitumen-polymer base can degrade the elastic properties of the bitumen-polymer composition (BPa) compared to the starting bitumen-polymer base.
- the composition and the process of the invention allow the restoration of the elastic properties of a bitumen-polymer composition with respect to the bitumen base-starting polymer.
- bitumen-polymer composition (BPb)
- BPb bitumen-polymer composition
- the recovery of at least 70% of the elastic recovery of the bitumen-polymer composition (BPb) is observed, with respect to the bitumen-polymer base or to a conventional bitumen-polymer composition implemented as a raw material, preferably at least 80%.
- the so-called “elastic return” measurement is carried out by means of a standardized test NF EN 13398 at 25 ° C (R25). This elastic return characteristic is expressed in percent (%).
- the elastic return, measured at 25 ° C, according to the standardized test NF EN 13398, represents the measurement of the capacity of a sample of bitumen to recover its initial shape after stretching, after a time of 30 minutes with a distance stretching applied 20 cm.
- bitumen-polymer composition comprising an additive (I), storable and transportable cold in divided form has an elastic return measured at 25 ° C according to the standard NF EN 13398 lower or equal to 65%.
- the compound (II) is a compound capable of reacting according to an acid-base reaction, an amidation reaction or an esterification reaction with the carboxylic acid group of the additive (I), preferably the compound (II) is a compound for making an acid-base reaction with a carboxylic acid group of the additive (I).
- the compound (II) reacting with the additive may be chosen from: - a nitrogen-containing compound of molecular weight greater than 90 g mol 1 and selected from chain polyamines (s) fat (s),
- a basic organic or inorganic metal salt preferably a metal salt selected from alkali metal salts, alkaline earth metal salts and mixtures thereof, and
- the compound (II) reacting with the additive may be chosen from nitrogen compounds, preferably a nitrogen compound with a molecular mass greater than 90 g / mol -1 and chosen from fatty-chain polyamines. .
- the fatty chain polyamines (s) can be obtained by reacting:
- R represents a linear hydrocarbon chain, saturated or unsaturated, comprising from 8 to 22 carbon atoms, and n an integer ranging from 2 to 5;
- the nitrogenous compound may be a complex mixture of products comprising unmodified amine groups and / or amide groups and / or cyclic formamidine structure elements of the tetrahydropyrimidine type obtained, on the one hand, from the carboxylic group provided. formic acid, and secondly from the terminal primary amine group and the amino groups in positions 1 and 3 with respect to each other polyalkylene polyamine chain (s) fat (s) of formula (III).
- nitrogen compounds (III) include, but are not limited to, tallow propylene triamine hydrochloride or tallow propylene triamine.
- the nitrogenous compound resulting from the reaction between the compound of formula (III) and formic acid has the general formula (Ma):
- R represents a linear hydrocarbon chain, saturated or unsaturated, comprising from 8 to 22 carbon atoms and p represents an integer equal to (n-1).
- the radical R in formula (IIIa) has the same structure as the radical R in formula (III).
- the radical R in the formula (Ma) is a radical containing one or more unsaturations, preferably chosen from the group comprising: alkenyl, alkadienyl, alkatrienyl, alkatetrenyl or alkapentaenyl, and preferably is a radical in Cs at C 2 o.
- radical R is chosen from those radicals R which contain 8 to 20 carbon atoms.
- radicals R that are suitable for the nitrogen compounds used according to the invention are such as decenyl-9, decadienyl-2,4-decatrienyl-2,4,6-dodecenyl, hexadecenyl-9, octadecenyl-6, octadecenyl- 11, octadecatrienyl-9,12,15, octadecatetraenyl-9,11,13,15, octadeca-tetraenyl-6,9,12,15, eicosenyl-9, eicosenyl-11, eicosatetraenyl-8,11,14,17, eicosatetraenyl-5,8,11,14, eicosapentaenyl-5,8,11,14,17, docosenyl-11, docosenyl
- the products of formula (IIIa) may, according to a preferred variant, form the essential components of the complex mixture of products resulting from the reaction of (III) with formic acid and which may comprise unmodified amino groups and / or amide groups and / or cyclic formamidine structure elements of the tetrahydropyrimidine type.
- a preferred nitrogen compound of the general formula (Ma) is N-tallow 3-amino-1-propyl-1,4,5,6-tetrahydropyrimidine, marketed under the name Cecabase®200 by the company
- the compound (II) when it is an alcohol, it may comprise 1, 2 or 3 -OH group (s) and a linear or branched, saturated or unsaturated carbon chain containing from 2 to 36 carbon atoms, preferably from 2 to 10 carbon atoms.
- the alcohol is glycerol.
- the compound (II) is a basic inorganic metal salt, it is advantageously in the form of an oxide or hydroxide of alkaline or alkaline-earth metal, such as the hydroxides or oxides of lithium, sodium, potassium and magnesium or calcium.
- the basic organic metal salt is advantageously sodium hydroxide.
- the content of the compound (II) capable of reacting with the additive (I) added in step ii) of the process of the invention ranges from 0.05% to 5% by mass, preferably from 0.05% to 3% by weight, more preferably from 0.1% to 2% by weight relative to the total weight of the bitumen-polymer composition (BPa) heated in stage i) of the process of the invention.
- the polymer bitumen composition obtained by the process as defined above has an elastic return measured at 25 ° C according to standard NF EN 13398 of at least 70%.
- compositions as defined above for the manufacture of a surface coating, a hot mix, a warm mix, a cold mix, a cold mix, a cold mix, a serious emulsion, said composition being associated with aggregates and / or recycling costs.
- Another subject of the invention relates to a kit composed of:
- bitumen-polymer (BPa) composition cold-solid and in divided form, especially in the form of bread as defined above, and a capsule comprising a compound (II) as defined above.
- the bitumen-polymer composition (BPa) in the form of bitumen cake comprises on one of its faces, a cavity for accommodating all or part of the capsule.
- the capsule is housed in all or part in the cavity removably.
- the capsule may be a soft-shell capsule, in particular a sachet, or a hard-shell capsule.
- the envelope of the capsule is made of heat-fusible plastic film, in particular polyethylene, or silicone.
- Another subject of the invention relates to the use of the kit as defined above in the process for preparing a bitumen-polymer composition (BPb) ready for application according to the invention.
- BPb bitumen-polymer composition
- bitumen-polymer composition (BPa) in the form of bread and the capsule forming the kit as defined above are used in the process of the invention simultaneously or consecutively.
- bitumen-polymer composition (BPa) in the form of bread and the capsule forming the kit as defined above are used in the process of the invention consecutively, said bitumen-polymer composition (BPa) in the form of bread is preheated according to step i) of the process of the invention and then the capsule comprising the compound (II) is added to the bitumen-polymer composition (BPa) heated according to step ii) of the process of the invention .
- the capsule before the heating of the bitumen-polymer composition (BPa), the capsule is dislodged from the cavity present on one of the faces of the bitumen-polymer composition in the form of bread (BPa).
- bitumen-polymer composition (BPa) in bread form and the capsule forming the kit as defined above are used in the process of the invention simultaneously, steps i) and ii) of the process of the invention are carried out simultaneously.
- a 13/40 grade bitumen base comprising a styrene / butadiene / styrene crosslinked, denoted Bi, having a penetrability P 25 36 1/10 mm and a TBA of 69 ° C, commercially available under the group of TOTAL brand STYRELF ® 13/40;
- bitumen base comprising a styrene / butadiene / styrene crosslinked, denoted by B 2, P 25 having a penetration of 50 1/10 mm and a TBA of 76 ° C, commercially available under the group TOTAL the brand STYRELF ® 13/60;
- the preparation of the bitumen B 4 is carried out by introducing the bitumen base Bi into a reactor at 160 ° C-165 ° C with stirring at 300 rpm, and then the sebacic acid. The mixture is stirred for about 1 hour at 160 ° C-165 ° C to obtain a homogeneous final appearance. The mixture is cooled to room temperature.
- the bitumen ⁇ is prepared by introducing the bitumen base B 2 into a reactor at 160 ° C.-165 ° C. with stirring at 300 rpm, and then sebacic acid. The mixture is stirred for about 1 hour at 160 ° C-165 ° C to obtain a homogeneous final appearance. The mixtures are cooled to room temperature.
- Bitumen breads P3, P4, P5 and P6 are prepared respectively from the bitumen B 3, B, B5 and ⁇ by the following method.
- a mass of about 0.5 kg of bitumen is cast at 160 ° C in a rectangular steel mold covered with a polyethylene / polypropylene hot melt film. The mold is then cooled to room temperature and then demolded.
- Bitumen breads P3, P4, P5 and P6 thus obtained were placed in ovens at different temperatures and under a load of 3.65 kg (+/- 50 g) to simulate the stacking of each bread on the other, during transport and / or storage. Indeed, it is estimated that 5 loaves are stacked vertically on a pallet during the transport and / or storage of bitumen bars. Therefore, the load of 3.65 kg (+/- 50 g) corresponding to the load applied to a block of 500 g is approximately equivalent to the load applied to a block of 25 kg in a pallet containing 40 blocks and having a mass total of about 1000 kg.
- M being the load or about 1000 kg
- g being the gravitational constant of 9.81 m-s 2
- S is the surface of the pallet is 1.21 m 2
- n is the number of blocks in the pallet is 40 .
- the blocks are first placed in an oven at a temperature of 40 ° C. If no creep is observed after a certain time, at most after 3 weeks, new loaves are molded and placed at an oven temperature of 50 ° C for at least 7 days. This operation is repeated by increasing the temperature from 10 ° C to a maximum temperature of 80 ° C if no creep is observed, or up to the temperature where a large creep breads is observed if said temperature is below 80 ° C. Creep results visually in deformation of the loaves and flow of the bitumen.
- a bitumen cake is placed in a melter and heated at about 160 ° C-165 ° C with stirring for a period of between 5 and 35 minutes and simultaneously with the heating of the bitumen cake, the nitrogen compound (Cecabase® 200) or the Alcohol (glycerol) is added. The mixture thus obtained is mixed until a homogeneous mixture is obtained.
- Table 4 lists the various experimental conditions of the process for restoring the elastic properties of the bitumen-polymer compositions according to the invention and their mechanical and rheological properties.
- bitumen-polymer composition comprising an additive in the form of bread P 4 makes it possible to restore the elastic properties, in particular the elastic return of the bitumen compositions.
- bitumen-polymer composition comprising an additive in the form of bread P 6 makes it possible to restore the elastic properties, in particular the elastic return of the bitumen-polymer compositions C n and Ci 2 obtained from ⁇ while retaining their mechanical properties with regard to the elastic and mechanical properties of the bitumen-control polymer composition B5.
- bitumen-polymer compositions C 7 to C10 and C12 to Cn cover at least 70% of the elastic return respectively from the bitumen-polymer compositions witnesses B3 and B5.
- composition C10 40.08 g of diorite granules were weighed and placed in a bowl in an oven at 160 ° C. 2.35 g of composition C10 were then weighed and placed in an oven at 60 ° C. Once the 2 components were at temperature, the composition C10 was poured on the aggregates and a manual shearing with a spatula was applied. The bowl was placed in an oven at 160 ° C. and a new shear was applied until coated granules were obtained. Coating with the composition Cn:
- composition Cn 40.08 g of diorite granules were weighed and placed in a bowl in an oven at 160 ° C. 2.35 g of composition Cn were then weighed and placed in an oven at 60 ° C. Once the 2 components were at temperature, the composition Cn was poured on the aggregates and a manual shearing with a spatula was applied. The bowl was placed in an oven at 160 ° C. and a new shear was applied until coated granules were obtained.
- compositions C10 and Cn were placed in water at 60 ° C overnight. The result is very satisfactory because the compositions C10 and Cn have not removed the aggregates.
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1561695A FR3044673B1 (fr) | 2015-12-02 | 2015-12-02 | Composition bitume-polymere et son procede de preparation |
| PCT/FR2016/053139 WO2017093656A1 (fr) | 2015-12-02 | 2016-11-30 | Composition bitume-polymere et son procede de preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3383945A1 true EP3383945A1 (fr) | 2018-10-10 |
Family
ID=55182424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16819967.7A Withdrawn EP3383945A1 (fr) | 2015-12-02 | 2016-11-30 | Composition bitume-polymere et son procede de preparation |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10759967B2 (fr) |
| EP (1) | EP3383945A1 (fr) |
| FR (1) | FR3044673B1 (fr) |
| SA (1) | SA518391712B1 (fr) |
| WO (1) | WO2017093656A1 (fr) |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3026568A (en) | 1958-11-14 | 1962-03-27 | Schuller Services Ltd | Method for producing coated bitumen pellets |
| FR2259824B1 (fr) | 1974-01-31 | 1978-01-06 | Pierrefitte Auby Sa | |
| US4338231A (en) * | 1980-06-12 | 1982-07-06 | Owens-Corning Fiberglas Corporation | Modified asphalt compositions |
| US4332704A (en) * | 1980-06-12 | 1982-06-01 | Owens-Corning Fiberglas Corporation | Modified asphalt compositions |
| US5268029A (en) * | 1985-02-12 | 1993-12-07 | Elf France | Cationic emulsions of bituminous binders of the type bitumen/polymer and cationic emulsifying system preferably utilizable for obtaining said emulsions |
| EP0854895B1 (fr) * | 1995-10-09 | 2001-07-25 | Kao Corporation | Compose amine liquide, et emulsifiant bitumineux a base de ce compose |
| RU2405797C2 (ru) | 2005-11-14 | 2010-12-10 | Кратон Полимерз Рисёч Б.В. | Способ получения композиции битумного вяжущего |
| CN101675114B (zh) | 2007-05-01 | 2012-09-26 | 科腾聚合物美国有限责任公司 | 沥青粘合剂组合物及其制备方法 |
| US20110115116A1 (en) | 2008-06-20 | 2011-05-19 | De Amorim Novais Da Costa Nobrega Joao Miguel | Method for preparing coated binder units |
| SG163463A1 (en) | 2009-02-03 | 2010-08-30 | Eps Offshore Oil Trading Plc | Consumable bitumen film for packaging bitumen |
| FR2948677B1 (fr) | 2009-07-29 | 2011-09-16 | Total Raffinage Marketing | Procede de preparation de compositions bitume/polymere reticulees sans agent reticulant |
| CN103597035B (zh) | 2011-06-07 | 2016-03-16 | 国际壳牌研究有限公司 | 制备包覆粘合剂单元的方法 |
| US9631094B2 (en) * | 2012-09-12 | 2017-04-25 | Honeywell International Inc. | Bitumen compositions and methods of making |
| FR3012812B1 (fr) * | 2013-11-05 | 2015-11-20 | Soprema | Granule de bitume et de polyurethane elastomere thermoplastique, son procede de preparation et ses utilisations |
| US10907045B2 (en) * | 2014-02-26 | 2021-02-02 | Garland Industries, Inc. | Active polymer modification of bitumen for use in roofing materials |
-
2015
- 2015-12-02 FR FR1561695A patent/FR3044673B1/fr not_active Expired - Fee Related
-
2016
- 2016-11-30 EP EP16819967.7A patent/EP3383945A1/fr not_active Withdrawn
- 2016-11-30 US US15/781,161 patent/US10759967B2/en not_active Expired - Fee Related
- 2016-11-30 WO PCT/FR2016/053139 patent/WO2017093656A1/fr not_active Ceased
-
2018
- 2018-05-31 SA SA518391712A patent/SA518391712B1/ar unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SA518391712B1 (ar) | 2022-08-21 |
| US20180298233A1 (en) | 2018-10-18 |
| US10759967B2 (en) | 2020-09-01 |
| FR3044673A1 (fr) | 2017-06-09 |
| FR3044673B1 (fr) | 2020-09-11 |
| WO2017093656A1 (fr) | 2017-06-08 |
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