Classifications

• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
  • C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
  • B29C48/25—Component parts, details or accessories; Auxiliary operations
  • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
  • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
  • B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
  • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
  • C08L23/04—Homopolymers or copolymers of ethene
  • C08L23/08—Copolymers of ethene
  • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing atoms other than carbon or hydrogen
  • C08L23/0869—Copolymers of ethene with unsaturated hydrocarbons containing atoms other than carbon or hydrogen with unsaturated acids, e.g. [meth]acrylic acid; with unsaturated esters, e.g. [meth]acrylic acid esters
  • C08L23/0884—Epoxide-containing esters
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
  • C08L51/04—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
  • C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers

Definitions

• the invention also relates to a method of manufacturing a polyester composition with improved impact properties. It also relates to new polyester compositions which can be obtained by this process.
• Polyesters have excellent properties of dimensional stability, heat resistance or chemical resistance that allow them to be used in the fields of packaging, electrical or electronic. However, during processing operations, a decrease in the molecular weight of the polyester may occur leading to a decrease in the impact properties.
• an impact modifier such as a copolymer of ethylene and an unsaturated epoxide can be used.
• EP963412 discloses injected polyester parts comprising a copolymer of ethylene and an unsaturated epoxide having a particular melt index. These parts are made from a composition having a viscosity allowing them to be easily extruded
• the extruded or injected polyester compositions have viscosity properties that allow them to be easily implemented.
• the core-shell compounds are in pulverulent form and their direct use in the polyester is impractical and can lead to agglomeration phenomena of core-shell compounds under certain process conditions.
• the manufacture of the composition is carried out at high temperature, that is to say generally at a temperature greater than 180 ° C.: a high temperature controlled implementation tool is used, for example an extruder, and generally feeds continuously the various constituents of the composition by hoppers that are in contact with the equipment implementation.
• a high temperature controlled implementation tool is used, for example an extruder, and generally feeds continuously the various constituents of the composition by hoppers that are in contact with the equipment implementation.
• the heat is transmitted from the extruder to the hoppers, which leads to an increase in the temperature of the various constituents present in the hoppers.
• the copolymer of ethylene and an unsaturated epoxide can become sticky, which can clog the feed of the extruder.
• thermoplastic composition comprising: a polyester resin (c);
• a first extrusion manufacturing step of a mixture comprising (a) and (b) at a temperature at which the copolymer (a) is in the molten state and at a maximum temperature in the range from
• thermoplastic composition by extrusion or by mixing the polyester resin (c) with the mixture (a) and (b) obtained in the first step.
• the impact behavior of the polyester composition is surprisingly improved with respect to the compositions of the prior art where such a first mixture is not produced.
• the viscosity of the polyester composition obtained allows easy conversion of the polyester composition, for example by injection. It also solves the implementation problems obtained when directly introducing the copolymer (a) and / or the core-bark compound (b) into the polyester
• the subject of the invention is also a composition that can be obtained by this method as well as by one of the different modes of the invention presented below, these modes being taken alone or in combination with one another.
• the step of manufacturing the mixture (a) and (b) of the first step is advantageously carried out so that the maximum temperature is in the range of 70 to 140 ° C.
• the step of manufacturing the mixture (a) and (b) of the first step is carried out by melt blending in a twin-screw corotative extruder or a twin-screw counter-rotating extruder or a co-rotating extruder. mixer or an internal mixer or a single-screw extruder, preferably in a single-screw extruder. It is understood that all the manufacturing steps of the mixture (a) and (b), including a melt blend, are considered here as extrusions.
• the residence time of the mixture (a) and (b) of the first step is in the range of 10 to 300 seconds.
• the second step of manufacturing the mixture with the polyester resin (c) can be carried out so that the mixing temperature is in the range from 180 to 320 ° C. This second step is done by mixing in the state melted in a twin-screw corotative extruder or a counter-rotating twin-screw extruder or a co-kneader or an internal mixer or a single-screw extruder, preferably in a co-rotating twin-screw extruder.
• the ratio (a) / (b) is advantageously in the range of 1/9 to 9/1, preferably 1/4 to 1.5 / 1.
• the composition may comprise, relative to its total mass, from 20 to 99%, for example from 50 to 97%, by weight of polyester resin (c) and from 1 to 80%, for example from 3 to 50% by weight of the mixture of (a) and (b).
• the polyester resin (c) according to a first variant of the invention can be chosen from polyethylene terephthalate (PET), polybutylene terephthalate (PBT) and the copolyester of ethylene glycol, cyclohexane dimethanol and terephthalic acid ( PETG).
• PETG polyethylene terephthalate
• PBT polybutylene terephthalate
• PETG copolyester of ethylene glycol, cyclohexane dimethanol and terephthalic acid
• PETG terephthalic acid
• the polyester resin (c) may be chosen from polyhydroxyalkanoate (PHA) and poly (lactic acid) (PLA).
• polyester resin (c) means a mixture of polycarbonate and polyester.
• the copolymer (a) and the compound (b) can be premixed cold before the step of manufacturing the mixture ((a) and (b)).
• the bark portion of the core-shell compound (b) may comprise in polymerized form:
• alkyl methacrylate whose alkyl chain comprises from 1 to 12 carbon atoms, preferably from 1 to 4;
• an aromatic organic vinyl compound comprising from 6 to 12 carbon atoms such as styrene
• the core portion of the core-shell compound (b) may comprise in polymerized form:
• a conjugated diene comprising from 4 to 12 carbon atoms, preferably from 4 to 8;
• alkyl acrylate whose alkyl chain comprises from 1 to 12 carbon atoms, preferably from 1 to 8, this core portion being or non-crosslinked.
• heart-shell compound (b) is chosen from:
• a compound having a core comprising butadiene and a bark comprising a mixture of acrylonitrile and styrene.
• the compound (b) has a core comprising butadiene and a bark comprising methyl methacrylate or a mixture of methyl methacrylate and styrene and the polyester resin (c) comprises PBT.
• the compound (b) has a core comprising 2-ethylhexyl acrylate and a bark comprising methyl methacrylate or a mixture of methyl methacrylate and styrene and the polyester resin (c) comprises PLA .
• the ratio of the mass of the bark to the mass of the core is for example in the range of 1: 1 to 20: 1.
• the monomer bearing ethylenic unsaturation and an epoxy function is preferably glycidyl methacrylate.
• the copolymer (a) may advantageously be chosen from the copolymer of ethylene and of glycidyl methacrylate and the copolymer of ethylene, alkyl (meth) acrylate and glycidyl methacrylate.
• the invention also relates to a composition obtainable by the process according to the invention.
• thermoplastic composition obtained by the process according to the present invention may consist of a hydroxyalkanoic polyacid (PHA) composition comprising a core-shell elastomeric compound and an olefinic copolymer comprising an epoxy functional ethylenic monomer.
• PHA hydroxyalkanoic polyacid
• Other advantageous optional features of the thermoplastic composition are defined below:
• the epoxy functional ethylenic monomer is glycidyl (meth) acrylate
• the olefinic copolymer is a copolymer of ethylene, of glycidyl methacrylate and optionally of
• (metha) alkyl crylate whose alkyl chain comprises from 1 to 30 carbon atoms;
• thermoplastic composition further comprises an additional olefinic polymer other than olefinic copolymers comprising an epoxy functional ethylenic monomer, said olefinic polymer being a copolymer of ethylene and an alkyl (meth) acrylate, an ethylene copolymer and a vinyl acid ester or a ionomer, preferably a copolymer of ethylene and an alkyl acrylate having an alkyl chain ranging from 1 to 20 such as, for example, methyl acrylate, ethylene acrylate or n-butyl acrylate;
• the core polymer of the heart-shell compound has a glass transition temperature of less than 20 ° C. and the polymer of the bark has a glass transition temperature greater than 20 ° C.
• the mass quantity of core is in the range of 60 to 95% of the total mass of the core-shell compound
• the size of the core-shell compounds is between 50 and 600 nm (nanometer);
• the PHA is chosen from polyacid (PLA) and poly glycolic acid (PGA).
• thermoplastic composition obtained by the process according to the invention makes it possible to produce all or part of a part or object, such as a package; this part / object being manufactured by a step of shaping the composition, for example by injection, pressing or calendering, said part or said object possibly undergoing an annealing step.
• a part or object such as a package
• this part / object being manufactured by a step of shaping the composition, for example by injection, pressing or calendering, said part or said object possibly undergoing an annealing step.
• the invention relates to a method for producing a thermoplastic composition
• the copolymer (a) may comprise, based on its total mass of 99.9% to 40% by mass of ⁇ -olefin, advantageously from 83.5% to 55%.
• the copolymer (a) may comprise, relative to its total mass, from 0.1% to 15% by weight of monomer bearing ethylenic unsaturation and an epoxy function, advantageously from 1.5% to 10%.
• the copolymer (a) comprises a monomer bearing an ethylenic unsaturation having no epoxy function and being different from an ⁇ -olefin.
• the copolymer (a) may comprise, relative to its total mass, from 0% to 45% by weight of this monomer, advantageously from 15% to 35%.
• the amounts of the different monomers present in the constituents (a) and (b) can be measured by infrared spectroscopy using the standard
• ⁇ -olefins that may be mentioned are ⁇ -olefins comprising from 2 to 6 carbon atoms such as ethylene or propylene. Ethylene is preferred as ⁇ -olefin.
• aliphatic glycidyl esters and ethers such as allyl glycidyl ether, vinyl glycidyl ether, maleate and
• Glycidyl methacrylate is preferred as a monomer bearing ethylenic unsaturation and an epoxy function.
• the monomer may comprise up to 24 carbon atoms.
• monomers include vinyl esters of saturated carboxylic acid such as vinyl acetate, dienes, alkyl acrylates or alkyl methacrylates grouped under the term alkyl (meth) acrylates herein. description.
• the ethylenically unsaturated monomer having no epoxy function and being different from an ⁇ -olefin is an alkyl (meth) acrylate.
• alkyl (meth) acrylate Preferred are those whose alkyl chain comprises from 1 to 12 carbon atoms, advantageously from 1 to 6, or even from 1 to 4.
• the (meth) acrylates of alkyl are n-butyl acrylate, acrylate isobutyl acrylate, 2-ethylhexyl acrylate, the ethyl acrylate and methyl acrylate ⁇ .
• the alkyl (meth) acrylates are n-butyl acrylate, ethyl acrylate and methyl acrylate. Most preferably, it is methyl acrylate.
• the melt flow index of the copolymer (a) according to the invention may be, for example, from 1 to 500 g / 10 min, measured according to ASTM D 1238 at 190 ° C. and at 2.16 kg.
• the copolymer (a) can be obtained by radical copolymerization of the various monomers.
• the so-called radical polymerization processes usually operating at pressures between 200 and 2500 bar, may be used. These processes are carried out industrially using two main types of reactors: an autoclave type reactor or a tubular type reactor. These methods of polymerization are known to those skilled in the art and can be used for example the methods described in documents FR2498609, FR2569411 and FR2569412.
• the core-shell compound (b) is in the form of fine particles having an elastomer core and at least one thermoplastic shell, the particle size is generally less than 1 ⁇ m and advantageously between 200 and 500 nm.
• a core By way of example of a core, mention may be made of homopolymers of isoprene or butadiene, copolymers of isoprene with at most 30 mol% of a vinylic monomer other than isoprene and copolymers of butadiene with plus 30 mol% of a vinyl monomer other than butadiene.
• the vinyl monomer may be, for example, isoprene, butadiene, styrene, alkylstyrene, acrylonitrile or alkyl methacrylate.
• Another family of cores consists of homopolymers of an alkyl acrylate and copolymers of an alkyl acrylate with at most 30 mol% of a vinyl monomer other than an alkyl acrylate such as styrene, alkylstyrene, acrylonitrile, butadiene or isoprene.
• the alkyl chain of the acrylate generally comprises from 2 to 20 carbon atoms.
• the alkyl acrylate is advantageously butyl acrylate or 2-ethylhexyl acrylate.
• the heart of the heart-shell compound (b) may be crosslinked in whole or in part. It suffices to add at least difunctional monomers during the preparation of the core, these monomers can be chosen from poly (meth) acrylic esters of polyols such as butylene di (meth) acrylate and trimethylolpropane trimethacrylate. Other difunctional monomers are, for example, divinylbenzene, trivinylbenzene, vinyl acrylate and vinyl methacrylate.
• the core may also be cross-linked by grafting or as a comonomer during the polymerization, unsaturated functional monomers such as unsaturated carboxylic acid anhydrides, unsaturated carboxylic acids and unsaturated epoxides. Mention may be made, for example, of maleic anhydride, (meth) acrylic acid and glycidyl methacrylate.
• the bark is generally made of a homopolymer of styrene, alkylstyrene or alkyl methacrylate such as methyl methacrylate. It may also consist of a copolymer comprising at least 70 mol% of one of these monomers with at most 30 mol% of at least one different comonomer and chosen from the other previous monomers, vinyl acetate and acrylonitrile.
• a core-bark compound (b) having a bark comprising styrene or a core-bark compound (b) having a bark comprising methyl methacrylate is used.
• Compound (b) may comprise more than one bark.
• copolymer (b) examples of copolymer (b) and their method of preparation are described in the following patents: US 4,180,494, US 3,808,180, US 4,096,202, US 4,260,693, US 3,287,443, US 3,657,391, US 4,299,928, US 3,985,704.
• the core-bark compound (b) is chosen from:
• a compound having a core comprising butadiene and a bark comprising methyl methacrylate or a mixture of methyl methacrylate (M) and styrene (S) with a molar ratio (M) / (S) preferably greater than or equal to 2.33;
• a compound having a core comprising an alkyl acrylate preferentially selected from 2-ethylhexyl acrylate and n-butyl acrylate and a bark comprising methyl methacrylate or a mixture of methyl methacrylate and styrene with a molar ratio (M) / (S) greater than or equal to 2.33;
• a compound having a core comprising butadiene and a bark comprising a mixture of acrylonitrile (A) and styrene with a molar ratio (A) / (S) preferably greater than or equal to 2.33.
• the core represents from 60 to 90% by weight of the compound (b) and the bark represents from 40 to 10%.
• the bark may be functionalized by grafting or as a comonomer during the polymerization, unsaturated functional monomers such as unsaturated carboxylic acid anhydrides, unsaturated carboxylic acids and unsaturated epoxides. Mention may be made, for example, of maleic anhydride, (meth) acrylic acid and glycidyl methacrylate.
• polyester resin refers to polymers comprising repeating units of the ester type. These are saturated products obtained by condensation reaction of glycols and dicarboxylic acids or their derivatives or by reaction of hydroxy acids or their derivatives, for example their dimers.
• They may include the condensation products of aromatic dicarboxylic acids having 8 to 14 carbon atoms and at least one cyclic aliphatic glycol or acyclic compound of formula HO (CH 2) n OH in which n is preferably an integer ranging from 2 to 10.
• the polyester can be synthesized from several diacids and / or several glycols: it is called copolyesters.
• aromatic dicarboxylic acid Up to 50 mol% of the aromatic dicarboxylic acid may be replaced by at least one different aromatic dicarboxylic acid, and / or up to 20 mol% may be replaced by an aliphatic dicarboxylic acid having, for example, from 2 to 12 carbon atoms.
• the polyester may comprise derived esters:
• aromatic dicarboxylic acid such as terephthalic acid, isophthalic acid, bibenzoic acid, naphthalene dicarboxylic acid, 4, 4'-diphenylenedicarboxylic acid, bis (p-carboxyphenyl) methane, ethylene bis-p-benzoic acid, 1-4-tetramethylene bis (p-oxybenzoic acid), ethylene bis (para-oxybenzoic) acid and / or 1,3-trimethylene bis (p-oxybenzoic acid);
• glycol such as ethylene glycol, 1,3-trimethylene glycol, 1,4-tetramethylene glycol,
• the polyesters may be polyethylene terephthalate (PET), poly (1,4-butylene) terephthalate (PBT), 1,4-cyclohexylene dimethylene terephthalate (PCT), polytrimethylene terephthalate (PTT) or 1,4-cyclohexylene dimethyl isophthalate.
• PET polyethylene terephthalate
• PBT poly (1,4-butylene) terephthalate
• PCT 1,4-cyclohexylene dimethylene terephthalate
• PTT polytrimethylene terephthalate
• 1,4-cyclohexylene dimethyl isophthalate 1,4-cyclohexylene dimethyl isophthalate.
• copolyesters By way of example of copolyesters, mention may be made of polyethylene (terephthalate-co-isophthalate), 1,4- polybutylene (terephthalate-co-isophthalate), 1,4-cyclohexylene dimethylene (terephthalate-co-isophthalate) and the copolyester of ethylene glycol, cyclohexane dimethanol and terephthalic acid, known under the abbreviation PETG.
• PETG polyethylene glycol, cyclohexane dimethanol and terephthalic acid
• polyester resin (c) may comprise or consist of polyesters of renewable origin, that is to say polyesters obtained by raw materials of plant or animal origin and not petrochemical:
• polylactides for example, polymers and copolymers of lactic acid (PLA) or polymers and copolymers of glycolic acid (PGA), or poly (hydroxyalkanoate) homo or copolymers (PHA): for example , PHB Poly (hydroxybutyrate), PHBV (hydroxybutyrate-valerate copolymer, eg poly (3-hydroxybutyrate) -poly (3-hydroxyvalerate)), PHBHx (hydroxybutyrate-hexanoate copolymer), PHBO (hydroxybutyrate-hexanoate copolymer) ).
• PHB Poly hydroxybutyrate
• PHBV hydroxybutyrate-valerate copolymer, eg poly (3-hydroxybutyrate) -poly (3-hydroxyvalerate)
• PHBHx hydroxybutyrate-hexanoate copolymer
• PHBO hydroxybutyrate-hexanoate copolymer
• the PLA can be chosen from the products of the Natureworks® brand from Cargill, the Ecoplastic® brand from Toyota, the Lacea® brand from Mitsui Chemical.
• the PHBV can be chosen among the products of the mark Biopol® (ex: biopol®D600G) of the company Zeneca, products of the company Biomer or products of the company Metabolix.
• the polyester may also be a copolyetherester which is a polyester block and polyether block copolymer.
• the polyether units are derived from polyetherdiols such as polyethylene glycol (PEG), polypropylene glycol (PPG) or polytetramethylene glycol (PTMG), dicarboxylic acid units such as terephthalic acid and chain-extending short diol units such as glycol (ethane diol) or butane diol, 1-4.
• PEG polyethylene glycol
• PPG polypropylene glycol
• PTMG polytetramethylene glycol
• dicarboxylic acid units such as terephthalic acid
• chain-extending short diol units such as glycol (ethane diol) or butane diol, 1-4.
• polyester resin (c) It is also possible to use a mixture of different polyesters. PBT or PLA can advantageously be used in the process according to the invention as polyester resin (c).
• polyester resin (c) means a mixture of polycarbonate and polyester.
• the melt flow index of the polyester resin (c), measured at 250 ° C. under 2.16 kg, may vary from 2 to 100 and advantageously from 10 to 80. 1st stage: manufacture of the mixture ( a) and (b)
• the first manufacturing step is carried out by extruding a mixture comprising (a) and (b) at a temperature at which the copolymer (a) is in the molten state and at a maximum temperature in the range from 60 to
• the melting temperature of the copolymer (a) can be measured by DSC by the method ISO 11357-03.
• the blend essentially does not comprise polyester resin
• Extrusion is a technique of mixing and continuous transformation of materials.
• a thermally controlled sheath is fed into copolymer (a) and compound (b), inside which at least one worm rotates.
• This screw kneads and transports the granules to a die, making it possible to obtain a homogeneous mixture in the molten state by the effect of heat and shear.
• the die will give the plastic mass the desired shape.
• a granulator can be used at the outlet of the extruder.
• the residence time during extrusion mixing is in the range of 10 to 300 seconds, preferably 30 to 240 seconds.
• a twin screw extruder or a single screw extruder can be used. It is preferred to use a low shear screw profile during extrusion, for example using a single-screw extruder.
• thermoplastic composition comprising the copolymer (a), the compound (b) and the polyester resin (c) is carried out by the apparatus for use of the thermoplastic polymers in single or twin screw extruders, mixers or apparatus Ko type mixer BUSS TM.
• the maximum temperature of the composition may be in the range from 180 to 320 ° C.
• the second manufacturing step is carried out by twin-screw or single-screw extrusion.
• thermoplastic compositions having good impact properties.
• Applicant explains the good shock properties of the composition by the method according to the invention by a good distribution of (a) and (b) in the thermoplastic composition.
• thermoplastic composition may also include additives to improve some of their properties such as slip agents, anti-blocking agents, antioxidants, anti-UVs and fillers.
• the fillers may be glass fibers, flame retardants, talc or chalk. These additives may be added to the composition during the first or second manufacturing step.
• Polyester (cl) Polybutylene terephthalate.
• Polyester (c2) PoIy lactic acid.
• the compositions according to the invention (1) and (2) and comparative (Ibis) and (2bis) comprise the constituents (a), (b1), (b2), (c1), (c2) in the proportions of Table 1
• the composition (1) has been prepared in two steps:
• the constituents (a) and (b1) are mixed in the ratio of Table 1 by extrusion.
• the extrusion is carried out in a single-screw extruder with a diameter of 60 mm and an L / D ratio of 28.
• the maximum temperature of the mixture is 133 ° C.
• composition (Ibis) was prepared in two stages:
• the constituents (a) and (b1) are mixed in the ratio of Table 1 by extrusion with the same extruder as for the composition (1), but this time the maximum temperature of the mixture is 198 ° C.
• composition (lter) which comprises the same constituents as the compositions (1) and (Ibis) and in the same proportions, was prepared in a single step by mixing the components (a), (b1) and (c1) under the same extrusion conditions as the second stage of manufacture of the compositions (1) and (1) bis.
• composition (2) has also been prepared in two stages by mixing in a first step the constituents (a) and
• This mixture is extruded in a second step with the polyester (c2), in the proportions of Table 1.
• the composition (2bis) was prepared in 2 stages by mixing in a first step the constituents (a) and
• composition (2b) was also prepared in 2 stages by mixing in a first step the constituents (a) and (b2) according to the ratio of Table 1, the mixture being produced by extrusion under conditions inducing a maximum temperature of the mixture of 72 0 C.
• composition (2qua) which comprises the same constituents as the compositions (2), (2bis) and (2ter) and in the same proportions, was prepared in a single step by mixing the constituents (a), (b2) and (c2) under the same extrusion conditions as the second stage of manufacture of the compositions (2), (2bis) and (2ter ).
• compositions prepared by the process according to the invention have improved impact properties in comparison with those obtained from the processes of the prior art.

Landscapes

• Chemical & Material Sciences (AREA)
• Polymers & Plastics (AREA)
• Health & Medical Sciences (AREA)
• Mechanical Engineering (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Medicinal Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Organic Chemistry (AREA)
• Compositions Of Macromolecular Compounds (AREA)
• Processes Of Treating Macromolecular Substances (AREA)
• Epoxy Resins (AREA)
• Biological Depolymerization Polymers (AREA)
• Graft Or Block Polymers (AREA)
• Paints Or Removers (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=42829455

Family Applications (2)

Family Applications After (1)

Country Status (11)

Families Citing this family (14)

Family Cites Families (47)

• 2010
  • 2010-07-13 EA EA201200138A patent/EA201200138A1/ru unknown
  • 2010-07-13 EP EP10752005A patent/EP2454063A1/fr not_active Withdrawn
  • 2010-07-13 JP JP2012520072A patent/JP2012533642A/ja active Pending
  • 2010-07-13 CN CN201080032126.7A patent/CN102549070B/zh not_active Expired - Fee Related
  • 2010-07-13 CN CN201080032125.2A patent/CN102549073B/zh active Active
  • 2010-07-13 CA CA2767161A patent/CA2767161A1/fr not_active Abandoned
  • 2010-07-13 US US13/383,533 patent/US8653192B2/en not_active Expired - Fee Related
  • 2010-07-13 MX MX2012000750A patent/MX2012000750A/es not_active Application Discontinuation
  • 2010-07-13 CA CA2767098A patent/CA2767098A1/fr not_active Abandoned
  • 2010-07-13 EA EA201200145A patent/EA201200145A1/ru unknown
  • 2010-07-13 WO PCT/FR2010/051471 patent/WO2011007092A1/fr active Application Filing
  • 2010-07-13 JP JP2012520071A patent/JP5567129B2/ja active Active
  • 2010-07-13 BR BR112012001132A patent/BR112012001132A2/pt not_active IP Right Cessation
  • 2010-07-13 EP EP10752003.3A patent/EP2454321B1/fr active Active
  • 2010-07-13 IN IN1336DEN2012 patent/IN2012DN01336A/en unknown
  • 2010-07-13 BR BR112012001672A patent/BR112012001672A2/pt not_active IP Right Cessation
  • 2010-07-13 MX MX2012000744A patent/MX2012000744A/es not_active Application Discontinuation
  • 2010-07-13 PL PL10752003T patent/PL2454321T3/pl unknown
  • 2010-07-13 IN IN1335DEN2012 patent/IN2012DN01335A/en unknown
  • 2010-07-13 WO PCT/FR2010/051473 patent/WO2011007093A1/fr active Application Filing
• 2012
  • 2012-01-17 US US13/351,832 patent/US8642703B2/en active Active

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events