WO2015007918A1 - Barriere a la vapeur adaptative - Google Patents
Barriere a la vapeur adaptative Download PDFInfo
- Publication number
- WO2015007918A1 WO2015007918A1 PCT/EP2014/065646 EP2014065646W WO2015007918A1 WO 2015007918 A1 WO2015007918 A1 WO 2015007918A1 EP 2014065646 W EP2014065646 W EP 2014065646W WO 2015007918 A1 WO2015007918 A1 WO 2015007918A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- acid
- hooc
- cooh
- use according
- diamine
- Prior art date
Links
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Classifications
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- B32B23/04—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose comprising such cellulosic plastic substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
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- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
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- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
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-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2377/06—Polyamides derived from polyamines and polycarboxylic acids
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2477/00—Presence of polyamide
- C09J2477/006—Presence of polyamide in the substrate
Definitions
- the present invention relates to a barrier to water vapor.
- This can be said to be “breathable” or “adaptive”, that is to say having a low permeability to water vapor when the humidity is low and permeability higher when the humidity level is high. It can also be designated as a vapor barrier.
- said vapor barrier material adapts to ambient humidity.
- the invention relates more specifically to the use of a specific polyamide to prepare such a barrier.
- Prior art documents describe vapor barriers, including adaptive to ambient humidity. However, these frequently have limited vapor barrier properties at low humidity, which can lead to the use of significant amounts of barrier material, particularly film, having a fairly large thickness, and even more frequently an insufficient differential between low vapor permeability and high humidity, ie low adaptation to ambient humidity.
- the document EP0821755 describes vapor barriers comprising PA6. The vapor barrier properties of PA6 may be insufficient.
- additives are added in order to reduce the low moisture vapor permeability, this also reduces the high moisture vapor permeability, and when additives are added to increase the moisture content. permeability to high humidity vapor, this also increases the permeability to low moisture vapor.
- US20120302698 discloses barriers comprising PA6 and polymeric additives to provide three levels of vapor permeability according to the average humidity. These mixtures lead in particular to levels of low moisture vapor permeability which may be unsatisfactory. In addition, these mixtures can lead to a rather complex recycling of the material.
- the present invention relates to a water vapor barrier, particularly an ambient humidity-adaptive water vapor barrier, comprising, or even consisting of,
- said material P comprises, or even consists of, at least one copolymer A which is a polyamide of PAXY / XAIS type
- X, Y and Z represent, independently of one another, integers ranging from 3 to 36, in particular from 4 to 18, in particular from 4 to 12,
- M n + i / n where n represents the number of charges of M, and M represents Li + , Na + , K + , Ag + , Cu + , Cu 2+ Zn 2+ , Mn 2+ , Mg 2+ , Fe 2+ , Fe 3+ , Al 3+ , NH 4+ , and / or phosphonium, in particular Li + and / or Na + , in particular Li + , and
- o AIS represents the residue derived from 5-sulfoisophthalic acid
- said barrier, and in particular said film, textile or layer of material P has a ratio (permeability to water vapor at 23 ° C. and at an average moisture content of 75%, ie ie RH75) / (permeability to water vapor, at 23 ° C. and at an average moisture content of 25%, that is to say RH25) greater than or equal to 15, especially greater or equal to 20, in particular greater than or equal to 25, more particularly greater than or equal to 30, or even greater than or equal to 35,
- said barrier and in particular said film, textile or layer of material P, has a permeability to water vapor:
- the subject of the present invention is the use as a barrier to water vapor, in particular a barrier to water vapor that is adaptive to ambient humidity,
- a film, a textile or a layer of material P said material P comprising, or even consisting of, at least one copolymer A which is a polyamide of type PAXY / XAIS M n + in, in particular PA66 / 6AISM n + i n , more particularly PA66 / 6AISU and / or PA PA66 / 6AISNa, or of type PAZ / XAISM n + i / n ,
- X, Y and Z represent, independently of one another, integers ranging from 3 to 36, in particular from 4 to 18, in particular from 4 to 12,
- M n + i / n where n represents the number of charges of M, and M represents Li + , Na + , K + , Ag + , Cu + , Cu 2+ Zn 2+ , Mn 2+ , Mg 2+ , Fe 2+ , Fe 3+ , Al 3+ , NH 4+ , and / or phosphonium, in particular Li + and / or Na + , in particular Li + , and
- o AIS represents the residue derived from 5-sulfoisophthalic acid
- said film, fabric or layer of material P used has a ratio (permeability to water vapor at 23 ° C. and at an average moisture content of 75%, that is to say at RH75 ) / (permeability to water vapor, at 23 ° C. and at an average humidity of 25%, that is to say RH25) greater than or equal to 15, in particular greater than or equal to 20, in particular greater than or equal to 25, more particularly greater than or equal to 30, or even greater than or equal to 35.
- said film, textile or layer of material P used has a permeability to water vapor:
- the material P used is therefore a composition comprising, or even consisting of, at least one copolyamide A.
- the copolymer A or even the material P, in particular in the form of a film, a layer or a textile of material P, can be used to manufacture a water vapor barrier, in particular a barrier to Adaptive moisture vapor at ambient humidity.
- AISM n + i / n can be represented as follows:
- PAXY / XAISM n + 1 / n in which X and Y are independently of one another and represent integers ranging from 3 to 36, in particular from 4 to 18, in particular from 4 to 12, are understood to mean copolymer obtained by polymerization, in particular a random
- a diamine in particular an aliphatic one, comprising X carbon atoms separating the two amine functions involved in the amide bonds
- a diacid in particular an aliphatic acid, comprising Y-2 carbon atoms separating the two acid functions involved in the amide bonds, and
- the diamine may be chosen from 1,4-diaminobutane, 1,5-diaminopentane, 1,6-diaminohexane or hexamethylene diamine (HMD), 2-methyl pentamethylene diamine, 2-methyl hexamethylene diamine, 3-methyl hexamethylene diamine, 2, 5-dimethyl hexamethylene diamine, 2,2-dimethylpentamethylenediamine, 1,8-diaminooctane, methyl-1,8-diaminooctane, 1,9-diaminononane, 5-methylnonanediamine, 1,10-diamino decane or decamethylenediamine, 1 12-diamino dodecane, or dodecamethylene diamine, and N- (6-amino
- the diacid may be selected from oxalic acid, succinic acid (HOOC- (CH 2 ) 2 -COOH), glutaric acid (HOOC- (CH 2 ) 3 -COOH), glutaric acid (HOOC-CH (CH 3 ) - (CH 2 ) 2 -COOH), 2,2-dimethylglutaric acid (HOOC-C (CH 3 ) 2 - (CH 2 ) 2 -COOH), adipic acid (HOOC- (CH 2 ) 4 -COOH), 2,4,4-trimethyladipic acid (HOOC-CH (CH 3 ) -CH 2 -C (CH 3 ) 2 -CH 2 -COOH) , pimelic acid (HOOC- (CH 2 ) 5 -COOH), suberic acid (HOOC- (CH 2 ) 6 -COOH), azelaic acid (HOOC- (CH 2 ) 7 -COOH), sebacic acid (HOOC- (CH 2 ) 8 -COOH
- the PAXY / XAISM n + i n is chosen from PA46 / 4AISM n + i n , PA410 / 4AISM n + 1 / n , PA412 / 4AISM n + 1 / n , PA66 / 6AISM n + 1 / n , PA610 / 6AISM n + i / n , PA 106 / 10AISM n + 1 / n , PA 612 / 6AISM n + 1 / n , PA1010 / 10AISM n + 1 / n , PA1012 / 10AISM n + 1 / n and PA1212 / 12AISM n + 1 / n , PA 66 / 6T / 6AISM n + i / n , especially M n + i / n is lithium and / or sodium, and even more particularly it is PA66 / 6AISU and
- PAZ / XAISM n + 1 / n in which X and Z are independently of one another and represent integers ranging from 3 to 36, in particular from 4 to 18, in particular from 4 to 12, are understood to mean a copolymer obtained by polymerization, in particular a random
- an amino acid or a lactam in particular an aliphatic one, comprising Z-1 carbon atoms separating the acid function and the amine function involved in the amide bonds,
- a diamine in particular an aliphatic one, comprising X carbon atoms separating the two amine functions involved in the amide bonds, and
- the amino acid or lactam may be chosen from caprolactam, 6-aminohexanoic acid, 10-aminodecanoic acid, 11-aminoundecanoic acid, and 12-dodecanolactam.
- PAZ / XAISM n + i n is chosen from PA6 / 6AISM n + i n , PA1 1 / 6AISM n + 1 / n , PA12 / 6AISM n + i n , and even more particularly it is PA6 / 6AiSM n + i / n , more particularly M n + i n is Li + and / or Na + .
- the copolymer A comprises, or even consists of, PA66 / 6AISU and / or PA66 / 6AISNa.
- PA66 / 6AISU and / or PA66 / 6AISNA is meant a copolymer, in particular a random copolymer, comprising a hexamethylenediamine-adipic acid repeat unit and a hexamethylenediamine-lithium salt and / or sodium salt repeat unit. 5-sulfoisophthalic acid.
- the PAXY / XAISM n + 1 / n type copolymer A may comprise another monomer, in particular diacid, and more particularly terephthalic acid, in particular to give PAXY / XT / XAISM n + 1 / n .
- Especially copolymer A in particular PA66 / 6AISU and / or PA66 / 6AISNa, comprises an aromatic repeat unit content, in particular 6AISL1 and 6AISNa, ranging from 0.1 to 60 mol%, in particular from 0.1 to 60 mol%. 20 mol%, in particular from 0.5 to 20 mol%, for example from 0.5 to 15 mol%, relative to the total number of repeating units in the polyamide. This content may also be between 1 and 15 mol%, in particular between 2 and 10 mol%, especially between 4 and 10 mol%, relative to the total number of repeating units in the polyamide.
- the copolymer A may also comprise monofunctional chain limiters or may comprise an excess in one of its components.
- the copolymer A is unbalanced, in particular the concentration of amine ends GTA (expressed in meq / kg) is greater than or equal to 1.1 ⁇ GTC (concentration in acid ends, expressed in meq / kg) or the GTC is greater or equal to 1, 1 x GTA.
- the copolymer A may be prepared according to a known synthetic process of a polyamide. A catalyst and / or stabilizers may be added during the synthesis of copolymer A.
- the copolymer A may have a number average molecular weight, Mn, greater than or equal to 8000 g / mol.
- the copolymer A is semi-crystalline, in particular it has a degree of crystallinity measured by differential calorimetry as defined in the examples greater than or equal to 20%.
- the copolymer A has a melt apparent viscosity at 100 sec -1 and at the melting temperature of copolymer A + 15 ° C. ranging from 20 Pa.s to 800 Pa.s.
- Especially copolymer A is a random copolymer.
- the material P used may comprise, in addition to the copolymer A, at least one other thermoplastic polymer, in particular another polyamide or a polyolefin, an impact modifier and / or a plasticizer.
- the material P used comprises at least one other polymer, in this case the polyamide constitutes a continuous phase.
- said polymer is selected from impact modifiers, and / or thermoplastic polymers such as polyethylenes, or PE, polystyrenes, or PS, polypropylenes, or PPs, polyesters, polycarbonates, or PCs, polyphenylene oxides or PPO polyphenylene ethers, or PPE, and mixtures thereof.
- These polymers may be present in a content ranging from 3 to 60%, in particular from 3 to 50%, especially from 5 to 40%, for example from 5 to 30% by weight relative to the total weight of material P.
- the material P used may comprise at least one impact modifier, that is to say a compound capable of modifying the impact resistance of a polyamide composition.
- impact modifiers and also the other thermoplastic polymers preferably comprise functional groups that are reactive with the polyamide.
- polyamide reactive functional groups means groups capable of reacting or chemically interacting with the amide, acid or amine functional groups of the polyamide, in particular by covalence, ionic interaction or hydrogen, or van der Waals bonding. Such reactive groups make it possible to generate mixing morphologies having characteristic domain sizes (the smallest dimension of a domain) of less than 5 ⁇ and to ensure good dispersion of the impact modifiers in the polyamide matrix. Good dispersion is generally obtained with particles of impact modifying agents having an average size of between 0.1 and 2 ⁇ in the matrix.
- polyamide for example, if the AGT is "acidic"(GTC> GTA) reactive functional groups will preferably be used capable of reacting or chemically interacting with the acid functions of the polyamide, in particular by covalence, ionic interaction or hydrogen or van bonding. der Waals.
- the AGT is "amine"(GTA> GTC)
- reactive functional groups capable of reacting or chemically interacting with the amine functions of the polyamide, in particular by covalence, ionic interaction or hydrogen or van der bonding. Waals. Shock modifiers having functional groups reactive with the amine end groups of the polyamide are especially used.
- the other thermoplastic polymers and the impact modifiers may in themselves comprise polyamide-reactive functional groups, for example with respect to ethylene acrylic acid (EAA). It is also possible to add functional groups reactive with the polyamide, generally by grafting or copolymerization, for example for ethylene-propylene-diene (EPDM) grafted with maleic anhydride.
- EAA ethylene acrylic acid
- EPDM ethylene-propylene-diene
- thermoplastic polymers and impact modifiers which are compounds, oligomeric or polymeric, may be used comprising at least one of the following monomers, or their mixture: ethylene, propylene, butene, isoprene, diene, acrylate, butadiene, styrene, octene, acrylonitrile, acrylic acid, methacrylic acid, vinyl acetate, vinyl esters such as acrylic and methacrylic esters and glycidyl methacrylate.
- these compounds also comprise other monomers than those mentioned above.
- they comprise only the monomers mentioned above.
- these compounds are ionomers.
- the base of the impact-modifying compound or of the other thermoplastic polymers can be chosen from the group comprising: polypropylenes, polybutenes, polyisoprenes, ethylene-propylene copolymers (EPR), copolymers of ethylene-propylene-diene (EPDM), copolymers of ethylene and butene, copolymers of ethylene and acrylate, copolymers of butadiene and styrene, copolymers of butadiene and acrylate, copolymers of ethylene and octene, butadiene acrylonitrile copolymers, copolymers of ethylene and acrylic or methacrylic acid, especially ethylene acrylic acid (EAA), ethylene vinyl acetate (EVA), ethylene acrylic ester (EEA), acrylonitrile butadiene copolymers styrene (ABS), block copolymers styrene ethylene butadiene s
- EPA ethylene vinyl acetate
- these other thermoplastic polymers and these shock-modifying agents may comprise, generally grafted or copolymerized, functional groups that are reactive with the polyamide, such as in particular the following functional groups: acids, such as carboxylic acids , salified acids, esters in particular, acrylates and methacrylates, ionomers, glycidyl groups in particular epoxy, esters glycidyls, anhydrides including maleic or phthalic anhydrides, oxazolines, maleimides, or mixtures thereof.
- acids such as carboxylic acids , salified acids, esters in particular, acrylates and methacrylates, ionomers, glycidyl groups in particular epoxy, esters glycidyls, anhydrides including maleic or phthalic anhydrides, oxazolines, maleimides, or mixtures thereof.
- Such functional groups on the elastomers are for example obtained by using a comonomer during the preparation of the elastomer or by radical grafting, in particular by reactive extrusion.
- n-butyl acrylate and glycidyl methacrylate copolymers of ethylene and maleic anhydride, ethylene-propylene-diene copolymers or ethylene-propylene copolymers grafted with maleic anhydride, styrene-maleimide copolymers grafted with maleic anhydride, styrene-ethylene-butylene-styrene copolymers modified with maleic anhydride, maleic anhydride-grafted styrene-acrylonitrile copolymers, acrylonitrile-butadiene-styrene graft copolymers grafted with maleic anhydrides, and their hydrogenated versions.
- the proportion by weight of the impact-modifying agents in the material P used may range from 3 to 60%, in particular from 3 to 40%, especially from 5 to 40%, for example from 5 to 30% by weight relative to the weight. total material P.
- the total content of impact-modifying agents and of other polymers may range from 3 to 60%, in particular from 3 to 40%, especially from 5 to 40%, for example from 5 to 30% by weight relative to the weight. total material P.
- the material P used comprises a content of copolymer A, in particular PA66 / 6AISM, of at least 90% by weight, in particular at least 95% by weight, in particular at least 98% by weight. weight relative to the total weight of the material P, more particularly, the material P used consists of copolymer A, in particular PA66 / 6AISM.
- the material P used may be free of other polymers than the copolymer A.
- the material P used may comprise other additives such as pigments, mineral or organic fillers, mattifying agents, thermal stabilizers, light and or UV, lubricants, plasticizers or flame retardants.
- the pigments may be chosen from carbon black, quinacridones and pyrroles.
- the charges can be chosen from:
- the mineral fillers in particular chosen from montmorillonite, talc notably micronized, zirconium phosphate, mica, sepiolite, zinc oxide, calcium carbonate, silica, metal particles such as silver, graphite, carbon nanotubes, phosphinic acid salts such as sodium, calcium and / or zinc phosphinates, calcium fluoride, molybdenum disulfide, silica, alumina, titanium dioxide, and their mixtures,
- organic fillers chosen in particular from PA22, aramids, especially in the form of fibers, cyclodextrins, and mixtures thereof, and
- the material P used does not comprise reinforcing fillers, and in particular no glass fibers.
- the fillers may be present in a content ranging from 0.1 to 10%, in particular from 0.1 to 5% by weight relative to the total weight of copolymer A.
- the thermal stabilizers and / or light may be chosen from Cul / KI, CuO / KBr, Cu 2 O / KBr, the hindered phenolic compounds, the stabilizers having at least one hindered amine unit of HALS type, organic or inorganic phosphorus stabilizers, such as sodium hypophosphite or manganese. These stabilizers may be present in a content ranging from 0.2 to 2% by weight relative to the total weight of the material P.
- the material P used may comprise a lubricant, or a mixture of lubricants.
- the lubricant may be present in a content ranging from 0.1 to 5% by weight relative to the total weight of the material P.
- the lubricant may be selected from fatty acids, metal salts of fatty acids, fatty acid esters, fatty acid amides, such as ⁇ , ⁇ '-ethylenebis (stearamide), and mixtures thereof. These compounds can be saturated or unsaturated.
- fatty acids that may be suitable in the context of the invention, mention may be made of fatty acids comprising at least 16 carbon atoms. By way of examples of such fatty acids there may be mentioned lauric acid, myristic acid, palmitic acid, stearic acid, alginic acid, behenic acid, lignoceric acid, serotinic acid, melissic acid, eicosanic acid. Stearic acid is preferred.
- the fatty acids are advantageously mono- or divalent carboxylic acids of 6 to 24 carbon atoms. Among these divalent acids include pelargonic acid, margaric acid, dodecanedicarboxylic acid.
- metal salt of fatty acid fatty acid salts are preferably chosen as described above.
- metal salts of fatty acids mention may be made of aluminum, calcium, magnesium or zinc stearate. Mention may also be made of aluminum distearate, aluminum tristearate and the like.
- the metal salt of fatty acid is aluminum distearate.
- Fatty acids and metal salts of fatty acids may have a chain-limiting effect on the polyamide.
- Fatty acid esters that may be mentioned include esters obtained by reaction between at least one fatty acid defined above and at least one aliphatic fatty alcohol, which generally comprises at least 12 carbon atoms.
- fatty alcohols lauryl alcohol, myristyl alcohol, palmityl alcohol, stearyl alcohol, eicosyl alcohol, biphenyl alcohol, tetracosyl alcohol, alcohol may be mentioned.
- the lubricant may be paraffin. Paraffins are in the form of pure substances or industrial mixtures. It can be hydrocarbon oils or waxes. They are generally saturated or unsaturated aliphatic hydrocarbon compounds.
- the lubricant is a paraffin whose average number of carbon atoms is between 8 and 100, preferably between 12 and 80 and advantageously between 15 and 50.
- the material P used may comprise a flame retardant.
- a flame retardant is a compound for decreasing the flame propagation and / or having fireproofing properties.
- the flame retardants usually used in flame retarded compositions include those described in US6344158, US6365071, US621 1402 and US6255371.
- the flame retardant may be a flame retardant comprising phosphorus, a flame retardant organic nitrogen compound, a flame retardant containing halogenated derivatives.
- the flame retardant may be a synergistic combination of phosphorus-containing compounds such as phosphine oxides, phosphonic acids or their salts or phosphinic acids or their salts, and cyclic phosphonates; with nitrogen derivatives such as melam, melem, melamine phosphate, melamine polyphosphates, melamine pyrophosphates or ammonium polyphosphates.
- phosphorus-containing compounds such as phosphine oxides, phosphonic acids or their salts or phosphinic acids or their salts, and cyclic phosphonates
- nitrogen derivatives such as melam, melem, melamine phosphate, melamine polyphosphates, melamine pyrophosphates or ammonium polyphosphates.
- the material P used may comprise a flame retardant content ranging from 5 to 40% by weight, especially from 10 to 30% by weight relative to the total weight of the material P.
- the material P used may also comprise at least one plasticizer.
- the plasticizer (s) may be chosen from benzene sulphonamide derivatives, such as n-butyl benzene sulphonamide (BBSA), ethyl toluene sulphonamide or N-cyclohexyl toluene sulphonamide; polyethylene glycols or polypropylene glycols; hydroxybenzoic acid esters, such as 2-ethylhexyl parahydroxybenzoate and 2-decyl hexyl parahydroxybenzoate; esters or ethers of tetrahydrofurfuryl alcohol and esters of citric acid or hydroxy malonic acid.
- the material P may comprise a plasticizer content ranging from 1 to 30% by weight, especially from 5 to 20% by weight relative to the total weight of the material P.
- the material P used is in the form of film, textile or layer. This material may be in the form of a roll, in particular having a width of at least 50 cm, or even at least 1 m.
- the film of material P can have a thickness ranging from 10 to 500 ⁇ , in particular from 20 to 400 ⁇ , in particular from 30 to 300 ⁇ .
- the material P used when it is in the form of a layer, it may have a thickness ranging from 1 to 500 ⁇ , in particular from 10 to 200 ⁇ .
- said layer is supported by a reinforcement.
- the layer or the film may in particular be deposited by spraying or by applying a dispersion of material P, especially in the manner of a paint.
- the textile may have a thickness ranging from 50 ⁇ to 2 mm, in particular from 300 to 800 ⁇ . It is in particular woven, of course, so that it has the characteristics of vapor permeability presented in the description.
- the film, the layer and / or the textile material P used is waterproof.
- the film, the layer or the material textile P used as a vapor barrier has a good airtightness.
- the support can be solid or liquid. When it is solid, it generally has a reinforcing function, including tearing. When it is liquid, it generally makes it possible to deposit a layer of material P on a solid support. In this case the layer can be obtained by an application such as paint.
- the solid support may be present on the entire surface of the barrier or on the contrary on certain zones, especially on the sides, for example in order to improve the resistance to tearing, in particular to allow the barrier to be fixed effectively, for example by staples.
- the solid support may be a cellulosic material, in particular reinforced with fibers, such as a paper, a membrane, in particular made of synthetic fiber fabric or a perforated polyethylene film, for example a fabric made of woven or non-woven fibers, in particular of polyolefin or polyester , a building material such as plates of construction materials, especially plaster, cement, etc., or on insulating boards, such as glass wool.
- fibers such as a paper, a membrane, in particular made of synthetic fiber fabric or a perforated polyethylene film, for example a fabric made of woven or non-woven fibers, in particular of polyolefin or polyester , a building material such as plates of construction materials, especially plaster, cement, etc., or on insulating boards, such as glass wool.
- Building materials are used to make wall structures or roofs.
- Structural materials made of wood, reinforced or non-reinforced concrete, bricks or metal, fibrous insulations such as mineral wools, natural fibers, non-fibrous insulators such as foams, may be mentioned as building materials.
- said material P is used, as a vapor barrier, in association with a solid support which may in particular be a building material and / or a membrane of the aforementioned type, in particular a nonwoven membrane. which can typically act as a reinforcing membrane (solid reinforcement of material P).
- the solid support comprises, or even consists of, a building material as described above.
- the solid support comprises, or even consists of, a construction material and a membrane.
- the solid support used in combination with the material P is chosen from wood and fibrous insulators. If necessary, this solid support can be used in combination with a solid reinforcement of the aforementioned type.
- the layer, the film or the textile of material P used is present on the outside of the solid reinforcement, but according to another variant this layer, this film or this textile material P used can be surrounded by two solid supports, identical or different.
- the material P can in particular be associated, for example by co-rolling, with a non-woven membrane as a solid reinforcement.
- the material P whether or not associated with such a membrane can be used with a construction material.
- the material P associated or not with such a membrane may be surrounded by two identical or different building materials, for example wood.
- the support When the support is liquid, it can provide a solution / dispersion adapted to apply a film or a layer of material P on a solid support, in particular as described in the preceding paragraph, or on a wall.
- An adhesive may also be placed on the textile, the film or the layer of material P used, or even, if appropriate, on the solid support of the textile, the film or the layer of material P. This may allow easier application of the barrier.
- the solid support does not limit the vapor permeability of the film, the textile or the layer of material P used.
- this effect a solid support whose vapor permeability is greater than that of the material P.
- the vapor barrier may further comprise an adhesive disposed directly on the copolyamide A or on the solid support of said barrier. This adhesive layer may in particular make it easier to fix said barrier.
- the limitation of the vapor permeability of the vapor barrier is due solely to the film, the textile or the material layer P used.
- the barrier advantageously has a vapor permeability at 23 ° C. and at an average moisture content of 25% less than or equal to 0.22 gm / mm 2 , in particular less than or equal to 0.20 g. .mm / m 2 .J, especially less than or equal to 0.18 g.mm/m 2 .J, or even less than or equal to 0.15 g.mm/m 2 .J.
- the barrier has a permeability to water vapor at 23 ° C and an average moisture content of 25% decreased by at least 25%, especially by at least 30% relative to virgin PA6 .
- the barrier according to the invention having a very low vapor permeability at low humidity, it can thus notably make it possible to isolate the framework of the building. moisture present in the house, and thus prevent it from condensing on the frame. This can especially correspond to winter conditions.
- Said barrier may also have a permeability to water vapor at 23 ° C. and at an average moisture content of 75% greater than or equal to 3.5 g / mm 2 / d, in particular greater than or equal to 4 g.mm/m 2 .J, especially greater than or equal to 4.5 g.mm/m 2 .J, or even greater than or equal to 5 g.mm/m 2 .J.
- the barrier has a permeability to water vapor at 23 ° C and an average humidity of 75% increased by at least 30%, especially by at least 40% relative to virgin PA6 .
- said material has a vapor permeability at an average moisture content of 75% at least 20 times higher than the vapor permeability at an average moisture content of 25%. The combination of these properties can therefore allow good breathing in wet conditions and good insulation in dry conditions.
- the present invention also relates to a construction element comprising at least one construction material of the aforementioned type and at least one film, a textile or a layer of material P characterized in that said film, textile or layer of material P is such than previously defined according to the first subject of the invention.
- this construction element may comprise a solid support selected from cellulose materials, membranes, insulating boards.
- the invention also relates to an article comprising a barrier as defined above, said article being able to be a garment, in particular of ski and / or rain, an undergarment, a shoe part, in particular of shoe sole, a construction material, such as a vapor barrier membrane, a tarpaulin, an article of bedding, such as a blanket, a sheet or pillow, a furniture covering material, such as a seat cover, etc.
- the contents of acid (GTC) and amine (GTA) end groups are determined by potentiometry, expressed in meq / kg.
- the melting temperatures (Tf), cooling crystallization (Te) and glass transition temperature (Tg) of the extruded films obtained are determined by differential scanning calorimetry (DSC) with the aid of a device.
- DSC differential scanning calorimetry
- the extruded films are conditioned at 23 ° C. at a humidity level of 50% (RH 50) until their water recovery reaches an equilibrium.
- the permeability to water vapor is then evaluated at different degrees of hygrometry:
- Polymeric films whose thickness has been accurately measured (approximately 300 ⁇ ) are fixed in sealed aluminum permeation cups containing liquid water, with the inner face of the polymer film in contact with steam of water, and an air gap of about 1 cm being present between the liquid water and the polymer. Then the cells are placed in a laboratory whose environment is regulated in temperature (23 ° C) and hygrometry (50%).
- the mass of the whole (cup + film + water) is measured over time. After a certain time called induction time, a loss of mass corresponding to the permeation of the water vapor through the polymer film from the inside of the cup to the outside is measured, and a value permeability representative this loss of mass in relation to the time, the film surface and multiplied by the film thickness can be established (permeability P expressed in g.mm / m 2 .J).
- Polymeric films whose thickness has been precisely measured (approximately 300 ⁇ ) are fixed in aluminum permeation cups sealed and containing 48 h dried silica gel at 110 ° C. The inner face of the polymer film is in contact with dry air with an air gap of about 1 cm being present between the silica gel and the polymer.
- the cells are placed in a laboratory whose environment is regulated in temperature (23 ° C) and hygrometry (50%).
- the mass of the whole (cup + film + water) is measured over time. After a certain time called induction time, a weight gain corresponding to the permeation of the water vapor through the polymer film from the outside of the cup to the inside is measured, and a value permeability representing this weight gain relative to time, to the film surface and multiplied by the film thickness can be established (permeability P with water vapor expressed in g.mm/m 2 .J).
- An OCS filming machine comprising a flat die (width 300, spacing ⁇ ) makes it possible to finally obtain films with a thickness of 300 ⁇ , the film at the die outlet being stretched at a speed of 2 m / minute, the temperature of the cooling roll being 135 ° C.
- the water vapor barrier properties at 23 ° C are then determined.
- the permeability P RH 25 is 0.23 ⁇ 0.01 g / mm 2.
- the permeability PRHzs is 2.7 ⁇ 0.5 g.mm / m 2 .J
- An OCS filmer comprising a flat die (width 300, 500 ⁇ spacing) makes it possible to finally obtain 300 ⁇ thick films, the die exit film being drawn at a speed of 2 m / minute, the temperature of the cooling roll being 135 ° C.
- the film obtained has the following thermal characteristics:
- the water vapor barrier properties at 23 ° C are then determined.
- the PRH25 permeability is 0.14 ⁇ 0.01 g.mm/m 2 .J, a permeability reduction of 40% compared to the unmodified PA66 film.
- the permeability PRHZS is 5.3 ⁇ 0.3 g.mm / m 2 .J, ie an increase of permeability of 100% compared with the unmodified PA66 film.
- the film PA66 / 6AISL1 95/5 mol / mol thus exhibits a decrease in permeability under "winter” type conditions (at low RH -40%) and an increase in permeability under "summer” type conditions (at high RH). it is + 100%) with respect to an unmodified PA66 film.
- a factor 38 is obtained between low RH permeability and high RH permeability.
- the polyamide of Example 3 is produced according to the same protocol as that presented in Example 2, except that sodium salt of 5-sulfoisophthalic acid 95% (AISNa) is used.
- the water vapor barrier properties at 23 ° C. C are then determined.
- the permeability PRH2s is 0.21 ⁇ 0.02 g.mm/m 2 .J, a reduction of permeability of 10% compared to the unmodified PA66 film.
- the permeability P RH zs is 1.11 ⁇ 0.2 g / mm 2 , which is an increase in permeability of more than 300% compared with the unmodified PA66 film.
- the PA66 / 6AISNa 95/5 mol / mol film thus exhibits a decrease in permeability under "winter” type conditions (at low RH -10%) and a very strong increase in permeability under "summer” conditions (high RH + 300%) compared to an unmodified PA66 film.
- a factor of 56 is obtained between low RH permeability and high RH permeability.
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Abstract
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Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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RU2016105512A RU2660122C2 (ru) | 2013-07-19 | 2014-07-21 | Адаптивный парозащитный барьер |
CA2917182A CA2917182C (fr) | 2013-07-19 | 2014-07-21 | Barriere a la vapeur adaptative |
CN201480040990.XA CN105392630A (zh) | 2013-07-19 | 2014-07-21 | 适应性蒸气屏障 |
US14/904,994 US10808089B2 (en) | 2013-07-19 | 2014-07-21 | Adaptive vapor barrier |
EP14741624.2A EP3022056B1 (fr) | 2013-07-19 | 2014-07-21 | Barriere a la vapeur adaptative |
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FR1301724A FR3008704B1 (fr) | 2013-07-19 | 2013-07-19 | Barriere a la vapeur adaptative |
FR1301724 | 2013-07-19 |
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WO2015007918A1 true WO2015007918A1 (fr) | 2015-01-22 |
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PCT/EP2014/065646 WO2015007918A1 (fr) | 2013-07-19 | 2014-07-21 | Barriere a la vapeur adaptative |
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US (1) | US10808089B2 (fr) |
EP (1) | EP3022056B1 (fr) |
CN (2) | CN110272553A (fr) |
CA (1) | CA2917182C (fr) |
FR (1) | FR3008704B1 (fr) |
RU (1) | RU2660122C2 (fr) |
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WO2017167691A1 (fr) | 2016-04-01 | 2017-10-05 | Solvay Specialty Polymers Usa, Llc | Procédé de fabrication d'un objet tridimensionnel |
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EP3233994A4 (fr) * | 2014-12-21 | 2018-08-22 | Palziv Ein Hanatziv Agricultural Co-operative Society Ltd. | Composite formé d'une feuille de mousse polymère et d'une couche barrière |
SG11202000892XA (en) | 2017-09-28 | 2020-02-27 | Dupont Polymers Inc | Polymerization process |
TW202336155A (zh) * | 2021-12-17 | 2023-09-16 | 美商阿散德性能材料營運公司 | 具有耐污染性和抗微生物/抗病毒性能的聚合物 |
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WO1996033321A1 (fr) * | 1995-04-19 | 1996-10-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Barriere de vapeur servant a isoler des batiments contre les effets de la chaleur |
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US7008890B1 (en) * | 1995-04-19 | 2006-03-07 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Vapor barrier for use in the thermal insulation of buildings |
US20060059852A1 (en) * | 2004-09-23 | 2006-03-23 | Certainteed Corporation | Laminated building materials |
ATE437920T1 (de) * | 2005-10-25 | 2009-08-15 | M & G Polimeri Italia Spa | Stabile polyamide zur gleichzeitigen festphasenpolymerisation von polyestern und polyamiden |
US8852749B2 (en) * | 2008-02-11 | 2014-10-07 | E I Du Pont De Nemours And Company | Compositions and structures having tailored water vapor transmission |
CN102939199B (zh) * | 2010-06-03 | 2015-03-25 | 独立行政法人产业技术综合研究所 | 水蒸气阻隔性膜及其制造方法 |
-
2013
- 2013-07-19 FR FR1301724A patent/FR3008704B1/fr not_active Expired - Fee Related
-
2014
- 2014-07-21 US US14/904,994 patent/US10808089B2/en active Active
- 2014-07-21 CN CN201910670346.5A patent/CN110272553A/zh active Pending
- 2014-07-21 RU RU2016105512A patent/RU2660122C2/ru active
- 2014-07-21 EP EP14741624.2A patent/EP3022056B1/fr not_active Not-in-force
- 2014-07-21 WO PCT/EP2014/065646 patent/WO2015007918A1/fr active Application Filing
- 2014-07-21 CA CA2917182A patent/CA2917182C/fr active Active
- 2014-07-21 CN CN201480040990.XA patent/CN105392630A/zh active Pending
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017167691A1 (fr) | 2016-04-01 | 2017-10-05 | Solvay Specialty Polymers Usa, Llc | Procédé de fabrication d'un objet tridimensionnel |
JP2019512414A (ja) * | 2016-04-01 | 2019-05-16 | ソルベイ スペシャルティ ポリマーズ ユーエスエー, エルエルシー | 3次元物体を製造する方法 |
US11911954B2 (en) | 2016-04-01 | 2024-02-27 | Solvay Specialty Polymers Usa, Llc | Method for manufacturing a three-dimensional object |
Also Published As
Publication number | Publication date |
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EP3022056A1 (fr) | 2016-05-25 |
RU2016105512A (ru) | 2017-08-24 |
US20160152784A1 (en) | 2016-06-02 |
FR3008704A1 (fr) | 2015-01-23 |
CN110272553A (zh) | 2019-09-24 |
FR3008704B1 (fr) | 2015-08-21 |
US10808089B2 (en) | 2020-10-20 |
EP3022056B1 (fr) | 2018-09-12 |
RU2660122C2 (ru) | 2018-07-05 |
CA2917182A1 (fr) | 2015-01-22 |
CN105392630A (zh) | 2016-03-09 |
CA2917182C (fr) | 2022-04-05 |
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