EP3710622A1 - Materiau textile souple etirable et anti-bouloches a base de copolymere a blocs - Google Patents
Materiau textile souple etirable et anti-bouloches a base de copolymere a blocsInfo
- Publication number
- EP3710622A1 EP3710622A1 EP18827169.6A EP18827169A EP3710622A1 EP 3710622 A1 EP3710622 A1 EP 3710622A1 EP 18827169 A EP18827169 A EP 18827169A EP 3710622 A1 EP3710622 A1 EP 3710622A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- textile material
- copolymer
- block
- polycarbodiimide
- blocks
- 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.)
- Pending
Links
Classifications
-
- 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
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/48—Polymers modified by chemical after-treatment
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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
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/40—Polyamides containing oxygen in the form of ether groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/78—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products
- D01F6/82—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products from polyester amides or polyether amides
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/061—Load-responsive characteristics elastic
Definitions
- the present invention relates to a textile material, such as a yarn, a fiber, a filament (monofilament or multifilament), a membrane, a porous membrane, a woven or non-woven fabric, comprising at least one synthetic fiber made of thermoplastic elastomer polymer. .
- Texttile or “textile” means any material made from fibers or filaments and any material forming a porous membrane characterized by a length / thickness ratio of not less than 300;
- Fiber means any synthetic or natural material characterized by a length / diameter ratio of not less than 300;
- filament means any fiber of infinite length
- Textiles include fiber mats (dressings, filters, felt), wicks (dressings), threads (sewing, knitting, weaving), nonwovens, web veils "Nets, (net), knits (straight, circular, fullyfashioned) fabrics (traditional, jacquard, multiple, double sided, multi axial, 2D and a half, 3D), and many others.
- textile materials that are both flexible, stretchable, solid, that is to say, resistant to tearing, and anti-pilling, that is to say, resistant to abrasion.
- the object of the present invention is to improve the flexibility, the stretchability, the strength of these textile materials and their resistance to abrasion.
- Flexibility is evaluated using the modules: tensile modulus according to ISO 527 1A: 2012, and flexural modulus at 23 ° C according to ISO 178: 2010. A decrease in these modules is in the direction of greater flexibility of textile materials.
- the stretchability is evaluated using the elongational rheology test, as defined hereinafter in the examples of the present application.
- the anti-pilling property is measured by the abrasion resistance which is evaluated by the mass loss according to ISO 527-1A: 2012: the lower the mass loss of the material, the better the abrasion resistance textiles based on this material. Tear resistance is evaluated according to ISO 34-1: 2015.
- PEBA polyamide block and polyether block copolymers
- These PEBAs belong to the particular class of polyetheresteramides when they result from the copolycondensation of polyamide sequences with reactive carboxyl ends with polyether sequences with reactive ends, which are polyether polyols (polyetherdiols), the bonds between the polyamide blocks and the polyether flexible blocks. being ester bonds.
- PEBAs are known for their physical properties such as their flexibility, their impact strength, and their ease of implementation by injection.
- these copolymers are difficult to process as textile material by extrusion, in particular because of a low melt viscosity and a low melt strength resulting therefrom.
- melt viscosity by lengthening the polymer chains, for example by prolonging the polymerization.
- This approach has been disappointing due to the degradation of the blocks, which also leads to a coloration (yellowing) of the material, without being able to reach the desired levels of melt viscosity, of at least 300 Pa.s, measured according to ISO 1621-10: 2015.
- the object of the invention is therefore also to provide an improved process for the manufacture of stretchable, flexible and anti-pellet textile materials based on block copolymers, in which extrusion is facilitated and the maximum attainable extrusion speeds are increased.
- the percentages expressed are percentages by mass. Unless otherwise stated, the parameters referred to are measured at atmospheric pressure, and ambient temperature (20-25 ° C, usually 23 ° C).
- the subject of the invention is therefore a flexible, stretchable and anti-pellet textile material based on block copolymers comprising at least one polyamide rigid block PA and at least one flexible block, characterized in that said copolymer comprises at least one end of carboxylic acid chain blocked by a polycarbodiimide.
- the "copolymer-based" textile material means that the textile material comprises at least 51% by weight of copolymer relative to the total weight of the textile material.
- the textile material according to the invention comprises at least 60% by weight of said copolymer as defined by the invention.
- it contains at least 70% by weight, preferably at least 80%, or even at least 90%, or better still at least 95%, by weight of copolymer as defined by the invention, on the total weight of the textile material .
- thermoplastic elastomer polymer refers to a polymer which constitutes a multiphase material having at least two transitions, namely a first transition at a temperature T1 (generally it is the glass transition temperature) and a second transition at a temperature T2 greater than T1 (usually this is the melting point). At a temperature below T1, the material is rigid, between T1 and T2 it has an elastic behavior, and above T2 it is melted.
- TPE thermoplastic elastomer polymer
- thermoplastic elastomer based on polyamide (TPE-A) within the meaning of the invention, such as a PEBA, is a block copolymer comprising a series of blocks, alternately rigid or hard (BD) and soft or soft (BM), according to the following general formula:
- BD or hard block or rigid block represents a block comprising polyamide (homopolyamide or copolyamide) or a mixture of blocks comprising polyamide (homopolyamide or copolyamide), hereinafter abbreviated independently PA or BD block;
- BM or Soft Block or soft block represents a block based on polyether (PE block), polyester (PES block), polydimethylsiloxane (PDMS block), polyolefin (PO block), polycarbonate (PC block) and / or any other polymer with a low glass transition temperature, or their mixtures in the form of alternating, random or block copolymers.
- PE block polyether
- PET block polyester
- PDMS block polydimethylsiloxane
- PO block polyolefin
- PC block polycarbonate
- BM is a polyether block having alkylene oxide units, in whole or in part.
- n represents the number of repeating units of the -BD-BM- unit of said copolymer n is in the range of 1 to 60, preferably 5 to 30, more preferably 6 to 20.
- low glass transition temperature for a polymer used in the composition of a BM within the meaning of the invention is meant a glass transition temperature Tg of less than 15 ° C., preferably less than 0 ° C., preferably less than 0 ° C. -15 ° C, more preferably below -30 ° C.
- said soft block may be based on PEG molar mass in a number equal to 1500g / mol and Tg of the order of - 35 ° C.
- Said glass transition temperature Tg may also be lower than -50 ° C., especially in the case where said soft block is based on PTM G.
- Amide block copolymers also called polyether block copolymers and polyamide blocks, abbreviated as "PEBA" result from the polycondensation of polyamide blocks with reactive ends with polyether blocks with reactive ends, such as, inter alia:
- polyamide blocks with dicarboxylic chain ends with polyoxyalkylene blocks with diamine chain ends obtained by cyanoethylation and hydrogenation of polyoxyalkylene aliphatic alpha-omega dihydroxylated blocks called polyetherdiols;
- the polyamide blocks with dicarboxylic chain ends come, for example, from the condensation of polyamide precursors in the presence of a chain-limiting dicarboxylic acid.
- the polyamide blocks with diamine chain ends come for example from the condensation of polyamide precursors in the presence of a chain-limiting diamine.
- the molar mass in number Mn of the polyamide blocks is between 400 and 20000 g / mol and preferably between 500 and 10000 g / mol.
- Polymers with polyamide blocks and polyether blocks may also comprise randomly distributed units. Three types of polyamide blocks can advantageously be used.
- the polyamide blocks come from the condensation of a dicarboxylic acid, in particular those having from 4 to 20 carbon atoms, preferably those having from 6 to 18 carbon atoms and an aliphatic or aromatic diamine, in particular those having 2 to 20 carbon atoms, preferably those having 6 to 14 carbon atoms.
- dicarboxylic acids examples include 1,4-cyclohexyldicarboxylic acid, butanedioic, adipic, azelaic, suberic, sebacic, dodecanedicarboxylic, octadecanedicarboxylic acids and terephthalic and isophthalic acids, but also dimerized fatty acids. .
- diamines examples include tetramethylenediamine, hexamethylenediamine, 1,10-decamethylenediamine, dodecamethylenediamine, trimethylhexamethylenediamine, the isomers of bis (4-aminocyclohexyl) methane (BACM), bis - (3-methyl-4-aminocyclohexyl) methane (BMACM), and 2-2-bis- (3-methyl-4-aminocyclohexyl) -propane (BMACP), and para-amino-di-cyclohexyl-methane ( PACM), and isophoronediamine (IPDA), 2,6-bis- (aminomethyl) -norbornane (BAMN) and piperazine (Pip).
- BCM bis (4-aminocyclohexyl) methane
- BMACM bis - (3-methyl-4-aminocyclohexyl) methane
- BMACP 2-2-
- the standard NF EN ISO 1874-1: 2011 defines a nomenclature of polyamides.
- the term "monomer” in the present description should be understood as “repetitive unit”.
- the case where a repeating unit of the polyamide consists of the combination of a diacid with a diamine is particular. It is considered that it is the combination of a diamine and a diacid, that is to say the “diaminediacid” pair, also called “XY”, in equimolar quantity which corresponds to the monomer. This is explained by the fact that, individually, the diacid or the diamine is only a structural unit, which is not enough on its own to polymerize.
- the polyamide blocks result from the condensation of one or more alpha omega-aminocarboxylic acids and / or one or more lactams having from 6 to 12 carbon atoms in the presence of a dicarboxylic acid having from 4 to 12 carbon atoms or a diamine.
- lactams mention may be made of caprolactam, oenantholactam and lauryllactam.
- alpha omega amino carboxylic acid mention may be made of aminocaproic acid, amino-7-heptanoic acid, amino-11-undecanoic acid and amino-12-dodecanoic acid.
- the polyamide blocks of the second type are made of polyamide 11, polyamide 12 or polyamide 6.
- the polyamide blocks result from the condensation of at least one alpha omega aminocarboxylic acid (or a lactam), at least one diamine and at least one dicarboxylic acid.
- polyamide PA blocks are prepared by polycondensation:
- comonomer (s) ⁇ Z ⁇ chosen from lactams and alpha-omega aminocarboxylic acids having Z carbon atoms and equimolar mixtures of at least one diamine having X 1 carbon atoms and at least one dicarboxylic acid having Y 1 carbon atoms, (X1, Y1) being different from (X, Y);
- said one or more comonomers ⁇ Z ⁇ being introduced in a proportion by weight of up to 50%, preferably up to 20%, even more advantageously up to 10% relative to all the polyamide precursor monomers;
- the dicarboxylic acid having Y carbon atoms which is introduced in excess with respect to the stoichiometry of the diamine or diamines, is used as chain limiter.
- the polyamide blocks result from the condensation of at least two alpha omega aminocarboxylic acids or at least two lactams having from 6 to 12 carbon atoms or a lactam and an aminocarboxylic acid. not having the same number of carbon atoms in the possible presence of a chain limiter.
- alpha omega amino carboxylic acid mention may be made of aminocaproic, amino-7-heptanoic, amino-11-undecanoic and amino-12-dodecanoic acids.
- lactam mention may be made of caprolactam, oenantholactam and lauryllactam.
- aliphatic diamines there may be mentioned hexamethylenediamine, dodecamethylenediamine and trimethylhexamethylenediamine.
- cycloaliphatic diacids mention may be made of 1,4-cyclohexyldicarboxylic acid.
- aliphatic diacids By way of example of aliphatic diacids, mention may be made of butanedioic acid, adipic acid, azelaic acid, suberic acid, sebacic acid, dodecanedicarboxylic acid or dimerized fatty acid (these dimerized fatty acids preferably have a dimer content of at least 98% preferably they are hydrogenated, they are marketed under the trade name Pripol® by the company Unichema, or under the brand Empol® by Henkel) and the polyoxyalkylenes-a, w diacids.
- aromatic diacids mention may be made of terephthalic (T) and isophthalic (I) acids.
- cycloaliphatic diamines By way of example of cycloaliphatic diamines, mention may be made of the isomers of bis (4-aminocyclohexyl) methane (BACM), bis (3-methyl-4-aminocyclohexyl) methane (BMACM), and 2- (2-bis) - (3-methyl-4-aminocyclohexyl) propane (BMACP), and para-amino-di-cyclohexyl methane (PACM).
- BMACP bis (4-aminocyclohexyl) methane
- BMACP 2- (2-bis) - (3-methyl-4-aminocyclohexyl) propane
- PAM para-amino-di-cyclohexyl methane
- IPDA isophoronediamine
- BAMN 2,6-bis (aminomethyl) norbornane
- PA blocks of PEBA according to the invention comprise at least two different monomers, called “co-monomers”, that is to say at least one monomer and at least one comonomer (monomer different from the first monomer) they comprise a copolymer such as an abbreviated copolyamide CoPA.
- co-monomers that is to say at least one monomer and at least one comonomer (monomer different from the first monomer) they comprise a copolymer such as an abbreviated copolyamide CoPA.
- polyamide blocks of the third type As examples of polyamide blocks of the third type, the following can be cited:
- 66/6 wherein 66 denotes hexamethylenediamine units condensed with adipic acid. 6 denotes patterns resulting from the condensation of caprolactam.
- 66/610/11/12 wherein 66 denotes hexamethylenediamine condensed with adipic acid. 610 denotes hexamethylenediamine condensed with sebacic acid. 11 denotes units resulting from the condensation of aminoundecanoic acid. 12 denotes patterns resulting from the condensation of lauryllactam.
- the mass Mn of the soft blocks is between 100 and 6000 g / mol and preferably between 200 and 3000 g / mol.
- the polymer comprises from 1 to 80% by weight of flexible blocks and from 20 to 99% by weight of polyamide blocks, preferably from 4 to 80% by weight of flexible blocks and from 20 to 96% by weight of polyamide blocks.
- the rigid polyamide block in the rigid block copolymer PA and flexible blocks according to the invention comprises at least one of the following polyamide units: 11, 12, 6, 610, 612, 1010, 1012 , and their mixtures or copolyamides.
- the polyether PE blocks consist of alkylene oxide units. These units may be, for example, ethylene oxide units, propylene oxide or tetrahydrofuran units (which leads to polytetramethylene glycol linkages).
- PEG (polyethylene glycol) blocks are used, ie those consisting of ethylene oxide units, PPG (propylene glycol) blocks, ie those consisting of propylene oxide units, P03G (polytrimethylene glycol) blocks. ) that is to say those consisting of glycol polytrimethylene ether units (such copolymers with polytrimethylene ether blocks are described in US6590065), and PTMG blocks, ie those consisting of tetramethylene glycol units also called polytetrahydrofuran.
- the PEBA copolymers may comprise in their chain several types of polyethers, the copolyethers may be block or statistical.
- the polyether blocks may also consist of ethoxylated primary amines.
- ethoxylated primary amines mention may be made of the products of formula:
- the flexible polyether blocks may comprise polyoxyalkylene blocks with Nhte chain ends, such blocks being obtainable by cyanoacetylation of aliphatic polyhydroxy aliphatic polyoxyalkylene aliphatic blocks called polyether diols. More particularly, Jeffamines (e.g. Jeffamine® D400, D2000, ED 2003, XTJ 542, commercial products of Huntsman, also described in JP2004346274, JP2004352794 and EP1482011) can be used.
- Jeffamines e.g. Jeffamine® D400, D2000, ED 2003, XTJ 542, commercial products of Huntsman, also described in JP2004346274, JP2004352794 and EP1482011
- the polyetherdiol blocks are either used as such and copolycondensed with polyamide blocks having carboxylic ends, or they are aminated to be converted into polyether diamines and condensed with polyamide blocks having carboxylic ends.
- the general two-step preparation method for PEBA copolymers having ester bonds between PA blocks and PE blocks is known and is described, for example, in French patent FR2846332.
- the general method for preparing the PEBA copolymers of the invention having amide linkages between PA blocks and PE blocks is known and described, for example in European Patent EP1482011.
- the polyether blocks can also be mixed with polyamide precursors and a diacid chain limiter to make the polyamide block and polyether block polymers having statistically distributed units (one-step process).
- PEBA designation in the present description of the invention relates as well to Pebax® marketed by Arkema, Vestamid® marketed by Evonik®, Grilamid® marketed by EMS, Kellaflex® marketed by DSM or to any other PEBA from other suppliers.
- the PEBA copolymers have PA blocks in PA 6, PA 11, PA 12, PA 612, PA 66/6, PA 1010 and / or PA 614, preferably PA 11 and / or PA blocks. 12; and PE blocks made of PTMG, PPG and / or P03G.
- PEBAs based on PE blocks consisting mainly of PEG are to be included in the range of PEBA hydrophilic.
- PEBAs based on PE blocks consisting mainly of PTMG are to be included in the range of hydrophobic PEBA.
- said PEBA used in the composition according to the invention is obtained at least partially from bio-resourced raw materials.
- Raw materials of renewable origin or bio-resourced raw materials are materials that include biofouled carbon or carbon of renewable origin.
- materials made from renewable raw materials contain 14 C.
- the "carbon content of renewable origin” or “bio-resourced carbon content” is determined according to the standards ASTM D 6866 (ASTM D 6866-06) and ASTM D 7026 (ASTM D 7026-04).
- PEBAs based on polyamide 11 come at least partly from bio-sourced raw materials and have a bio-resourced carbon content of at least 1%, which corresponds to a 12 C isotopic ratio. / 14 C of at least 1, 2 x 10 14 .
- the PEBAs according to the invention comprise at least 50% by mass of bio-resourced carbon on the total mass of carbon, which corresponds to a 12 C / 14 C isotope ratio of at least 0.6 ⁇ 10 12 .
- This content is advantageously higher, especially up to 100%, which corresponds to a 12 C / 14 C isotope ratio of 1.2 ⁇ 10 -12 , in the case, for example, of PEBA with PA 11 blocks and PE blocks comprising P03G, PTMG and / or PPG from raw materials of renewable origin.
- PES polyester blocks are usually manufactured by polycondensation between a dicarboxylic acid and a diol.
- Suitable carboxylic acids include those mentioned above used to form the polyamide blocks with the exception of terephthalic and isophthalic acids.
- Suitable diols include linear aliphatic diols such as ethylene glycol, 1,3-propylene glycol, 1,4-butylene glycol, 1,6-hexylene glycol, branched diols such as neopentyl glycol, 3- methylpentane glycol, 1,2-propylene glycol, and cyclic diols such as 1,4-bis (hydroxymethyl) cyclohexane and 1,4-cyclohexane dimethanol.
- Polyesters are also understood to mean poly (caprolactone) and PES based on fatty acid dimers, in particular products from the PRIPLAST® range from Croda or Uniqema.
- PSi polysiloxane block
- PSi polysiloxane block
- hydrocarbon radicals are alkyl radicals, especially C1-C10 and in particular methyl radicals, fluoroalkyl radicals, aryl radicals and in particular phenyl radicals, and alkenyl radicals and in particular vinyl radicals; other types of radicals that can be bonded either directly or via a hydrocarbon radical to the siloxane chain include hydrogen, halogens and in particular chlorine, bromine or fluorine, thiols, alkoxy radicals, polyoxyalkylene (or polyether) radicals and in particular polyoxyethylene and / or polyoxypropylene radicals, hydroxyl or hydroxyalkyl radicals, substituted or unsubstituted amine groups, amide groups, acyloxy or acyloxyalkyl radicals, hydroxyalkylamino or aminoalkyl radicals quaternary ammonium groups, amphoteric or betaine groups, anionic groups such as carboxylates, thioglycolates, sulphosuccinates, ani
- said polysiloxane blocks comprise polydimethylsiloxane (hereinafter abbreviated PDMS blocks), polymethylphenylsiloxane, and / or polyvinylsiloxane.
- PDMS blocks polydimethylsiloxane
- polymethylphenylsiloxane polymethylphenylsiloxane
- polyvinylsiloxane polyvinylsiloxane
- Polyolefin block within the meaning of the invention means any polymer comprising as monomer an alpha-olefin, that is to say homopolymers of an olefin or copolymers of at least an alpha-olefin and at least one other copolymerizable monomer, the alpha-olefin preferably having from 2 to 30 carbon atoms.
- alpha-olefin By way of example of alpha-olefin, mention may be made of ethylene, propylene, 1-butene, 1-pentene, 3-methyl-1-butene, 1-hexene, 4-methyl-1-pentene, 3 - methyl-1-pentene, 1-octene, 1-decene, 1-dodecene, 1-tetradecene, 1-hexadecene, 1-octadecene, 1-eicocene, 1 -ococene, 1-tetracocene, 1-hexacocene, 1-octacocene , and 1-triacontene. These alpha-olefins can be used alone or as a mixture of two or more.
- LDPE low density polyethylene
- HDPE high density polyethylene
- LLDPE linear low density polyethylene
- VLDPE very low density polyethylene
- ethylene / alpha-olefin copolymers such as ethylene / propylene, EPR elastomers (ethylene-propylene rubber), and EPDM (ethylene-propylene-diene), and polyethylene blends with EPR or EPDM,
- SEBS styrene / ethylene-butene / styrene block copolymers
- SBS styrene / butadiene / styrene
- SIS styrene / isoprene / styrene
- SEPS styrene / ethylene-propylene / styrene
- unsaturated carboxylic acid salts or esters such as, for example, alkyl (meth) acrylates, alkyl having up to 24 carbon atoms, vinyl esters of saturated carboxylic acids such as, for example, vinyl acetate or propionate, and dienes such as, for example, 1,4-hexadiene or polybutadiene.
- said at least one polyolefin block comprises polyisobutylene and / or polybutadiene.
- the block copolymer according to the invention comprises at least one flexible polyolefin block (PO block) and at least one hydrophilic hard block (hereinafter abbreviated BDh) comprising both polyamide and polyether, such as a polyetheramide block, a polyetheresteramide block, and / or a polyetheramideamide block, etc.
- Said PO block preferably comprises a polyolefin comprising acidic terminal groups, alcohols or amines.
- the PO block is obtained by thermal degradation of high molecular weight polyolefins to form polyolefins of lower mass and functionalized (reference method: Japanese Kokai Publication Hei-03-62804).
- the BDh block may further comprise at least one polymer chosen from: cationic polymers, of quaternary amine type and / or phosphorus derivatives; and / or anionic polymers, of modified diacid type, comprising a group sulfonate and capable of reacting with a polyol.
- the addition of organic salt can then be envisaged in the preparation of the BDh block or during the reaction between the block PO and the block BDh.
- Document US Pat. No. 5,552,131 describes the synthesis and the various possible structures for the PO block and BDh block copolymer, these being of course conceivable in the process according to the invention.
- PC block polvcarbonate block
- the aliphatic polycarbonates are described for example in DE2546534 and JP1009225. Such homopolymeric or copolymeric polycarbonates are also described in US471203.
- Applications WO92 / 22600 and WO95 / 12629 disclose copolymers comprising polycarbonate blocks and their methods of synthesis. The blocks (and their synthesis) described in these documents are perfectly conceivable for the synthesis of a PC block copolymer according to the invention.
- the polycarbonate blocks of the copolymer according to the invention have the formula:
- R1 and R2 which may be the same or different, represent a straight or branched chain, aliphatic or alicyclic having 2 to 18 carbon atoms, or represent a polyoxyalkylene group or represent a polyester group.
- R 1 and R 2 are selected from hexylene, decylene, dodecylene, 1,4-cyclohexylene, 2,2-dimethyl, 3-propylene, 2,5-dimethyl-2,5-hexylene or polyoxyethylene are preferred.
- block copolymers described above generally comprise at least one polyamide rigid block and at least one flexible block
- present invention in fact covers all copolymers comprising two, three, four (or more) different blocks selected among those described in the present description, as long as at least one of these blocks is a polyamide block.
- the copolymer according to the invention comprises a segmented block copolymer comprising three different types of blocks (called “triblock” in the present description of the invention), which result from the condensation of several of the blocks described above.
- Said triblock is preferably chosen from copolyetheresteramides, copolyetheramideurethanes, in which:
- the polyamide rigid block mass percentage is greater than 10%
- the mass percentage of flexible blocks is greater than 20%
- the flexible block in the rigid block copolymer-based textile material PA and flexible blocks according to the invention comprises (and preferably is) a polyether PE block, preferably chosen from PTMG, PPG, P03G and / or PEG.
- the flexible block in the rigid block copolymer PA and soft blocks of the textile material according to the invention comprises (and preferably is) a polyester block PES, chosen from polyesters diols, poly ( caprolactone) and polyesters based on fatty acid dimers.
- the ratio by weight of the PA blocks on the soft blocks is in the range of 0.3 to 10, preferably of 0.3 to 6, preferably of 0.3 to 3. preferably from 0.3 to 2.
- said copolymer at the base of the textile material according to the invention comprises from 30 to 70% by weight of polyethylenetramethylene glycol (PTMG) flexible blocks, preferably from 50 to 70% by weight of PTMG blocks, relative to the total weight of copolymer.
- PTMG polyethylenetramethylene glycol
- said polyamide block PA of the copolymer used in the textile material of the invention comprises at least one of the following polyamide units: 6, 66, 610, 612, PA1010, PA1012, PA11, PA12, PA6 / 12, PA6 / 6.6, and mixtures or copolyamides thereof.
- the copolymer comprises a rigid block copolymer polyamide and polyether soft blocks (PEBA), preferably chosen from the following PEBAs: PA6-PEG, PA1010-PEG, PA1012-PEG, PA11 -PEG, PA12-PEG, PA6 / 12 -PEG, PA66-PEG, PA6 / 66-PEG, and mixtures thereof or among the following PEBAs PA6-PTMG, PA1010-PTMG, PA1012-PTMG, PA11- PTM G, PA12-PTMG, PA6 / 12-PTMG, PA66-PTMG, PA6 / 66-PTMG, and mixtures thereof.
- PEBA rigid block copolymer polyamide and polyether soft blocks
- Polycarbodiimides suitable for the present invention are represented by the following general formula:
- R is monovalent
- R' is divalent
- n is from 2 to 50, preferably from 2 to 45, preferably from 2 to 20, and preferably from 5 to 20.
- R may be, for example, C 1 -C 20 alkyl or C 3 -C 10 cycloalkyl or C 1 -C 20 alkenyl, and may be cyclic or branched, or may contain a C 8 -C 16 aromatic ring, and may be substituted by functional groups.
- R ' may be a divalent group corresponding to all the foregoing, for example, C1-C20 alkylene, C3-C10 cycloalkylene, etc.
- functional groups include, but are not limited to, cyanato and isocyanato, halo, amido, carboxamido, amino, imido, imino, silyl, etc.
- R ' include, but are not limited to, divalent radicals derived from 2,6-diisopropylbenzene, naphthalene, 3,5-diethyltoluene, 4,4'-methylenebis (2,6-diethylenephenyl) ), 4,4'-methylenebis (2-ethyl-6-methylphenyl), 4,4'-methylenebis (2,6-diisopropylphenyl), 4,4'-methylenebis (2-ethyl-5) methylcyclohexyl), 2,4,6-triisopropylphenyl, n- hexane, cyclohexane, dicyclohexylmethane and methylcyclohexane, and the like.
- Patent documents US5130360, US5859166, US368493, US7456137 US2007 / 0278452, US2009 / 0176938, and in particular US5360888 still disclose other examples of polycarbodiimides.
- Suitable polycarbodiimides can be obtained from commercially available sources such as the Stabaxol P series from Rhein Chemie, the Stabilizer series from Raschig, and others from Ziko or Teijin, for example.
- the polycarbodiimide is chosen from a stabilizer, in particular Stabilizer® 9000 corresponding to Poly- (1,3,5-triisopropylphenylene-2,4-carbodiimide), a Stabaxol®, in particular a stabaxol® P, in particular Stabaxol® P100 or Stabaxol® P400, or a mixture thereof.
- a stabilizer in particular Stabilizer® 9000 corresponding to Poly- (1,3,5-triisopropylphenylene-2,4-carbodiimide
- Stabaxol® in particular a stabaxol® P, in particular Stabaxol® P100 or Stabaxol® P400, or a mixture thereof.
- the polycarbodiimide has a weight average molecular weight greater than 10,000 g / mol.
- the weight average molecular weight of the polycarbodiimide is in the range of 10,000 to 40,000 g / mol, preferably 15,000 to 30,000 g / mol.
- the weight average molecular weight of the polycarbodiimide used in the present invention is measured by gel permeation chromatography (GPC) in tetrahydrofuran (THF).
- the weight content of the polycarbodiimide is advantageously from 0.5 to 10% by weight, preferably from 0.5 to 7% by weight, preferably from 0.5 to 3% by weight, preferably from 0.5 to 2% by weight. , 5%, preferably from 0.5 to 2% by weight, relative to the total weight of copolymer according to the invention.
- said carboxylic acid of the copolymer in the textile material according to the invention, forms a urea bond by reaction with a carbodiimide of the polycarbodiimide.
- One of the advantages of the block copolymer at the end of acid chain blocked at the base of the textile material according to the invention is that it remains in non-crosslinked linear form, the Mw / Mn dispersity of the copolymer being less than 3. This is surprising in the extent to which, in the prior art, the carbodiimides are rather used to viscosify polyamides (see for example the patent document FR3027907), in particular by crosslinking them, and for improving their resistance to hydrolysis as described in US5360888.
- the subject of the present invention is also the use of a polycarbodiimide in a process for manufacturing a textile material based on polyamide block copolymers and flexible blocks comprising at least one end of the carboxylic acid chain, to improve the extrudability and / or the stretching ability (or stretching) of the copolymer as a textile material and / or improving the extrusion rate of said copolymer, wherein at least one end of the carboxylic acid chain of the copolymer is blocked by a carbodiimide function of the polycarbodiimide.
- the subject of the present invention is also the use of a polycarbodiimide in a polyamid block and flexible block copolymer-based textile material comprising at least one end of the carboxylic acid chain, in order to improve the stretchability of the textile material, the flexibility of the material textile, its resistance to abrasion, and its tear resistance, wherein at least one end of the carboxylic acid chain of the copolymer is blocked by a carbodiimide function of the polycarbodiimide.
- the polycarbodiimide has a weight average molecular mass greater than 10,000 g / mol, preferably in the range of 10,000 to 40,000 g / mol, preferably 15,000 to 30,000 g / mol. mol.
- At least one end of the carboxylic acid chain of the copolymer is blocked by a urea function formed by reaction with the polycarbodiimide.
- the subject of the present invention is also a composition of textile material based on a copolymer according to the invention, characterized in that it comprises
- polyamides from 0.1 to 49% by weight of at least one other component chosen from polyamides, polyolefins, functional polyolefins, copolyetheresters, thermoplastic polyurethanes (TPU), copolymers of ethylene and vinyl acetate, copolymers ethylene and acrylate, and copolymers of ethylene and alkyl (meth) acrylate,
- TPU thermoplastic polyurethanes
- additives chosen from nucleating agents, fillers, in particular mineral fillers, such as talc, reinforcement, especially of glass or carbon, dyes, UV absorbers, antioxidants, in particular phenolics, or phosphorus-based or sulfur-based, hindered amine light stabilizers or HALS, and mixtures thereof,
- the textile material according to the invention comprises a functional polyolefin comprising grafting with a monomer chosen from the group comprising unsaturated carboxylic acids, unsaturated carboxylic anhydrides, vinyl monomers, acrylic monomers, and mixtures thereof.
- the functional polyolefin is selected from the group consisting of ethylene-acrylic ester copolymers, ethylene-acrylic ester-maleic anhydride copolymers, ethylene-acrylic ester-glycidyl methacrylate copolymers.
- the textile material according to the invention has a thickness less than or equal to 100 mhh, preferably less than or equal to 50 m ⁇ ti, preferably less than or equal to 30 m ⁇ ti, preferably less than or equal to 25 m ⁇ ti, preferably included in the range from 5 to 25 m ⁇ ti.
- the subject of the present invention is also a process for manufacturing the textile material according to the invention, in particular a spinning process, comprising the steps of:
- the process of the invention comprises, prior to step a), the mixture of block copolymer comprising at least one polyamide rigid block PA and at least one flexible block and polycarbodiimide, so that at least one end of the carboxylic acid chain of the block copolymer reacts with a carbodiimide function of the polycarbodiimide.
- the mixture is produced by means of a single-screw or twin-screw extruder or by addition of the polycarbodiimide during the synthesis of the block copolymer.
- the stretching step c) is carried out by extrusion blow molding, extrusion-inflating, extrusion-drawing, extrusion-sheathing, extrusion-calendering, extrusion in a flat die, extrusion-coating, lamination, and / or coextrusion.
- the manufacture of monofilament comprises the following steps:
- step c) stretches said copolymer or said mixture in a draw ratio of 1 to 30, preferably 1 to 20, or more preferably 1 to 15.
- the extrusion speed of step b ) is in the range of 1000 to 10000 m / min, preferably 2000 to 8000 m / min.
- step b) is carried out at a temperature in the range of 80 to 350 ° C, preferably 100 to 300 ° C, preferably 150 to 250 ° C.
- said at least one textile material is in the form of a porous membrane, a woven fabric or a nonwoven fabric.
- said at least one textile material comprises synthetic fibers, in particular PET, PA, PP, PBT, PLA, TPU, TPE, synthetic fibers obtained from bio-resourced raw materials, natural fibers, artificial fibers manufactured from from natural raw materials, mineral fibers, and / or metal fibers.
- said at least one textile material constitutes a felt, a fiber, a filter, a gauze, a cloth, a bandage, a diaper, a fabric, a knit, an article of clothing, a garment, an article of bedding, an article upholstery, a curtain, a cockpit liner, a functional technical textile, a geotextile, and / or an agrotextile.
- the present invention also relates to the use of a textile material according to the invention in the medical field, hygiene, luggage, clothing, clothing, household equipment or home, furniture , carpets, automobiles, industry, especially industrial filtration, agriculture and / or building.
- PEBA 1 PA 12-PTMG (Mn: 600-2000)
- PEBA 1 is a PA 12 block copolymer and PTMG blocks of number average molecular weights (Mn) 600 - 2000 respectively.
- PEBA 2 PA 12-PTMG (Mn: 850-2000)
- PEBA 2 is a copolymer according to the invention, with PA 12 blocks and PTMG blocks of number-average molecular masses (Mn) 850 - 2000 respectively.
- Copo 2 98% PEBA 2 + 2% PCDI
- PEBA 3 PA 12-PTMG (Mn: 2000-1000)
- PEBA 3 is a copolymer according to the invention, with PA 12 blocks and PTMG blocks of number-average molecular masses (Mn) respectively 2000 - 1000. Copo 3: 98.5% PEBA 3 + 1.5% PCDI
- PEBA 4 PA11-PTMG (600-1000)
- PEBA 4 is a block copolymer PA11 and PTMG blocks of number average molecular weights (Mn) 600 - 1000 respectively.
- PCDI Polycarbodiimide used in the examples: Poly- (1,3,5-triisopropylphenylene-2,4-carbodiimide)
- Table 1 gives the melt viscosity measurement results eta * (in Pa.s) at 220 ° C., as a function of the angular frequency (rad / s) according to the standard ISO 6721-10: 2015. Table 1
- Copos materials according to the invention have a higher melt viscosity than the comparative PEBAs.
- Copos materials according to the invention are therefore more easily extrudable in textiles than comparative PEBA materials.
- a rod is extruded through a die of a capillary rheometer; it is entered in the molten state by two pairs of wheels driven by a variable speed motor.
- a first pair of wheels and the motor are mounted at the free end, deviable, a support connected directly to a sensor, representing the restoring force.
- the second pair of wheels (coupled to the first pair) makes it possible to guide and limit the winding of the ring around the upper wheels.
- Small buffers soaked with surfactant liquid water, ethanol, and surfactant mixture) are also applied to the wheels to cool them and thus limit the bonding effect.
- the strenqht melt curves of FIGS. 1 and 2 represent the elongation constraint on the ordinate as a function of the elongation factor on the abscissa.
- Test temperatures 150 ° C or 180 ° C depending on grades
- Air gap about 0.6 mm
- Diameter of the piston 12 mm
- Figure 1 shows the elongational measurement result of PEBA 3 (bottom curve) and Copo 3 (top curve) at 180 ° C.
- Figure 2 shows the elongational flow rheology measurement result of PEBA 4 (bottom curve) and Copo 4 (top curve) at 150 ° C.
- the copolymers Copo 3 and Copo 4 used in the textile materials according to the invention have an improved stretching ability compared to that of the respective controls PEBA 3 and PEBA 4.
- the textile materials according to the invention based on block copolymers comprising at least one carboxylic acid end chain blocked by a polycarbodiimide exhibit improved stretchability compared to textile materials based on the same respective unblocked copolymers.
- Copo copolymers 1 to 4 used in the textile materials according to the invention have lower tensile and flexural moduli than those of the respective controls PEBA 1 to 4.
- the textile materials according to the invention based on block copolymers comprising at least one carboxylic acid end chain blocked by a polycarbodiimide have an improved flexibility compared to textile materials based on the same respective unblocked copolymers.
- the loss of mass is lower in the case of copolymers according to the invention, therefore the textile materials based on the copolymers according to the invention have a better abrasion resistance than the textile materials based on the respective control PEBAs.
- the textile materials based on the copolymers according to the invention have a better tear resistance than the textile materials based on the respective control PEBAs.
- the average molecular weights by weight and by the number Mw and Mn measured increase respectively when passing from a PEBA to the corresponding Copo according to the invention, which indicates that the reaction has taken place between the carbodiimide function of the polycarbodiimide and the function PEBA acid to form the end-blocked acid end Copo used according to the invention.
- the dispersity is determined to be equal to the ratio between molecular weight and number Mw / Mn. The accuracy of the measurement is given to within 5%.
- the number average molecular (or molar) mass is set by the chain limiter content. It can be calculated according to the relation:
- niimiter number of moles of excess diacid
- Repeat pattern Molecular weight of the pattern of repetition
- Miimiteur Molar mass of excess diacid
- the Mw / Mn dispersity is also preserved in each Copo according to the invention with respect to the corresponding initial PEBA, and it is measured less than 3, in all the copolymers, which proves that the copolymers according to the invention remained in the form of linear non-crosslinked.
- the textile materials based on these copolymers therefore remain perfectly recyclable.
- the polycarbodiimide thus used in the textile material according to the present invention makes it possible to improve the properties of: extrudability, stretchability, flexibility, abrasion resistance, and tear resistance of the textile material, while maintaining its recyclability.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Polyamides (AREA)
- Artificial Filaments (AREA)
- Woven Fabrics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1760886A FR3073867B1 (fr) | 2017-11-17 | 2017-11-17 | Materiau textile souple etirable et anti-bouloches a base de copolymere a blocs |
| PCT/FR2018/052882 WO2019097185A1 (fr) | 2017-11-17 | 2018-11-16 | Materiau textile souple etirable et anti-bouloches a base de copolymere a blocs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3710622A1 true EP3710622A1 (fr) | 2020-09-23 |
Family
ID=61802025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18827169.6A Pending EP3710622A1 (fr) | 2017-11-17 | 2018-11-16 | Materiau textile souple etirable et anti-bouloches a base de copolymere a blocs |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20200385522A1 (fr) |
| EP (1) | EP3710622A1 (fr) |
| JP (2) | JP7411547B2 (fr) |
| CN (1) | CN111356798B (fr) |
| FR (1) | FR3073867B1 (fr) |
| WO (1) | WO2019097185A1 (fr) |
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| CN110144639B (zh) * | 2019-06-06 | 2021-11-09 | 东华大学 | 一种柔软、抗水解聚乳酸纤维及其制备方法 |
| FR3115491B1 (fr) * | 2020-10-27 | 2024-08-23 | Arkema France | Structure multicouche imper-respirante |
| CN114805991A (zh) * | 2022-03-25 | 2022-07-29 | 武汉金发科技有限公司 | 一种抗撕裂的聚烯烃复合材料及其制备方法和应用 |
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| US471203A (en) | 1892-03-22 | Child s folding bed | ||
| US368493A (en) | 1887-08-16 | Decorative paper | ||
| DE2546534C2 (de) | 1975-10-17 | 1983-12-15 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung aliphatischer Polycarbonate |
| GB8617535D0 (en) * | 1986-07-17 | 1986-08-28 | Du Pont Canada | Gas barrier structures |
| JPH0670094B2 (ja) | 1989-07-28 | 1994-09-07 | 三洋化成工業株式会社 | 低分子ポリオレフィンの製造法 |
| DE4010959A1 (de) | 1990-04-05 | 1991-10-10 | Rhein Chemie Rheinau Gmbh | Polyester und polyurethane |
| IT1248061B (it) | 1991-06-14 | 1995-01-05 | Mediolanum Farmaceutici Spa | Policarbonati e loro uso per la preparazione di matrici bioerodibili |
| DE4214193A1 (de) * | 1992-04-30 | 1993-11-04 | Rhein Chemie Rheinau Gmbh | Hydrolysestabile polyamide |
| US5652326A (en) | 1993-03-03 | 1997-07-29 | Sanyo Chemical Industries, Ltd. | Polyetheresteramide and antistatic resin composition |
| IT1266775B1 (it) | 1993-11-05 | 1997-01-21 | Mediolanum Farmaceutici Srl | Poliesterepolicarbonati ad alto peso molecolare e loro uso per la preparazione di matrici bioerodibili |
| JPH07252358A (ja) * | 1994-03-16 | 1995-10-03 | Sekisui Chem Co Ltd | ポリエステルアミドエラストマーの製造方法 |
| US5859166A (en) | 1994-06-10 | 1999-01-12 | Nisshinbo Industries, Inc. | Hydrophilic resin composition |
| JPH109225A (ja) | 1996-06-27 | 1998-01-13 | S N Seiki:Kk | 医療用機器等の固定装置 |
| WO1999013924A2 (fr) * | 1997-09-17 | 1999-03-25 | Advanced Cardiovascular Systems, Inc. | Ballonnets de catheters en copolymere sequence d'amide et de polyether |
| DE19754418A1 (de) * | 1997-12-09 | 1999-06-10 | Bayer Ag | Stabilisierte Formmassen biologisch abbaubarer Materialien |
| CN1246366C (zh) | 1999-02-10 | 2006-03-22 | 三洋化成工业株式会社 | 嵌段聚合物和包含它的抗静电剂 |
| US6590065B1 (en) | 2001-12-10 | 2003-07-08 | E. I. Du Pont De Nemours And Company | Polytrimethylene ether ester amide and use thereof |
| FR2846332B1 (fr) | 2002-10-23 | 2004-12-03 | Atofina | Copolymeres transparents a blocs polyamides et blocs polyethers |
| JP4193588B2 (ja) | 2003-05-26 | 2008-12-10 | 宇部興産株式会社 | ポリアミド系エラストマー |
| US7056975B2 (en) | 2003-05-27 | 2006-06-06 | Ube Industries, Ltd. | Thermoplastic resin composition having improved resistance to hydrolysis |
| JP4161802B2 (ja) | 2003-05-27 | 2008-10-08 | 宇部興産株式会社 | ポリアミド組成物 |
| DE10326380A1 (de) * | 2003-06-12 | 2004-12-30 | Rhein-Chemie Rheingau Gmbh | Verträgliche Blends von thermoplastischen Formmassen |
| US7456137B2 (en) | 2004-12-03 | 2008-11-25 | Afton Chemical Corporation | Compositions comprising at least one carbodiimide |
| JP4661266B2 (ja) * | 2005-02-25 | 2011-03-30 | 東レ株式会社 | 合成繊維、およびそれからなる繊維構造体 |
| US10017623B2 (en) | 2006-06-06 | 2018-07-10 | Covestro Llc | Hydrolysis stabilizer for thermoplastic molding compositions |
| US20090169882A1 (en) * | 2007-12-28 | 2009-07-02 | Louis Jay Jandris | Compatibilized polyester-polyamide with high modulus, and good abrasion and fibrillation resistance and fabric produced thereof |
| US20090176938A1 (en) | 2008-01-09 | 2009-07-09 | E. I. Du Pont De Nemours And Company | Polyester composition resistant to hydrolysis |
| JP5384916B2 (ja) * | 2008-09-30 | 2014-01-08 | グンゼ株式会社 | 繊維、生地及び肌着 |
| ES2537129T3 (es) * | 2009-09-16 | 2015-06-02 | Teijin Limited | Fibra y estructura de fibra |
| DE102011090092A1 (de) * | 2011-12-29 | 2013-07-04 | Evonik Degussa Gmbh | Verfahren zur Herstellung eines Formteils aus einer Polyamidformmasse mit verbesserter Hydrolysebeständigkeit |
| JP5920103B2 (ja) * | 2012-08-14 | 2016-05-18 | 三菱瓦斯化学株式会社 | ポリエーテルポリアミド繊維 |
| KR20150042194A (ko) * | 2012-08-14 | 2015-04-20 | 미쯔비시 가스 케미칼 컴파니, 인코포레이티드 | 폴리에테르폴리아미드 섬유 |
| CN105074306B (zh) * | 2013-03-27 | 2017-03-15 | 富士胶片株式会社 | 内窥镜用挠性管及其制造方法 |
| FR3027907B1 (fr) | 2014-11-05 | 2018-03-30 | Arkema France | Composition a base de polymere thermoplastique visqueuse et stable a la transformation, sa preparation et ses utilisations |
| JP6639201B2 (ja) * | 2015-11-25 | 2020-02-05 | 株式会社ブリヂストン | タイヤ |
-
2017
- 2017-11-17 FR FR1760886A patent/FR3073867B1/fr active Active
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2018
- 2018-11-16 WO PCT/FR2018/052882 patent/WO2019097185A1/fr not_active Ceased
- 2018-11-16 US US16/763,564 patent/US20200385522A1/en active Pending
- 2018-11-16 JP JP2020526501A patent/JP7411547B2/ja active Active
- 2018-11-16 CN CN201880074581.XA patent/CN111356798B/zh active Active
- 2018-11-16 EP EP18827169.6A patent/EP3710622A1/fr active Pending
-
2023
- 2023-11-10 JP JP2023192624A patent/JP2024028698A/ja not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| JP7411547B2 (ja) | 2024-01-11 |
| JP2024028698A (ja) | 2024-03-05 |
| WO2019097185A1 (fr) | 2019-05-23 |
| JP2021503564A (ja) | 2021-02-12 |
| US20200385522A1 (en) | 2020-12-10 |
| FR3073867B1 (fr) | 2019-11-08 |
| CN111356798A (zh) | 2020-06-30 |
| CN111356798B (zh) | 2023-08-08 |
| FR3073867A1 (fr) | 2019-05-24 |
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