EP1957578A1 - Composition comprenant un copolymere a base d'acrylonitrile et d'un monomere vinylaromatique, un copolymere comprenant au moins trois blocs et un copolymere particulaire du type coeur-ecorce. - Google Patents
Composition comprenant un copolymere a base d'acrylonitrile et d'un monomere vinylaromatique, un copolymere comprenant au moins trois blocs et un copolymere particulaire du type coeur-ecorce.Info
- Publication number
- EP1957578A1 EP1957578A1 EP06819926A EP06819926A EP1957578A1 EP 1957578 A1 EP1957578 A1 EP 1957578A1 EP 06819926 A EP06819926 A EP 06819926A EP 06819926 A EP06819926 A EP 06819926A EP 1957578 A1 EP1957578 A1 EP 1957578A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- copolymer
- block
- composition according
- styrene
- acrylonitrile
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 229920001577 copolymer Polymers 0.000 title claims abstract description 99
- 239000000203 mixture Substances 0.000 title claims abstract description 52
- 239000000178 monomer Substances 0.000 title claims abstract description 38
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 229920002554 vinyl polymer Polymers 0.000 title claims abstract description 15
- 229920001400 block copolymer Polymers 0.000 claims abstract description 16
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 58
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 33
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 19
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 18
- 125000000217 alkyl group Chemical group 0.000 claims description 18
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 18
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 17
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 16
- 229920001519 homopolymer Polymers 0.000 claims description 15
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 claims description 10
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 10
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 claims description 10
- 238000006116 polymerization reaction Methods 0.000 claims description 10
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 9
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 claims description 6
- 239000004793 Polystyrene Substances 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 claims description 5
- 239000000806 elastomer Substances 0.000 claims description 5
- 230000009477 glass transition Effects 0.000 claims description 5
- 229920002223 polystyrene Polymers 0.000 claims description 5
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 claims description 4
- 238000007334 copolymerization reaction Methods 0.000 claims description 4
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 3
- 229920000578 graft copolymer Polymers 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 229920005684 linear copolymer Polymers 0.000 claims description 2
- 230000035939 shock Effects 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 description 20
- 230000015572 biosynthetic process Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 6
- 150000001735 carboxylic acids Chemical class 0.000 description 4
- 239000011258 core-shell material Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- -1 2-ethylhexyl Chemical group 0.000 description 3
- 229920002943 EPDM rubber Polymers 0.000 description 3
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 3
- 150000001993 dienes Chemical class 0.000 description 3
- 229920002857 polybutadiene Polymers 0.000 description 3
- 229920000428 triblock copolymer Polymers 0.000 description 3
- SDJHPPZKZZWAKF-UHFFFAOYSA-N 2,3-dimethylbuta-1,3-diene Chemical compound CC(=C)C(C)=C SDJHPPZKZZWAKF-UHFFFAOYSA-N 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- 239000005062 Polybutadiene Substances 0.000 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 125000005250 alkyl acrylate group Chemical group 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 150000008064 anhydrides Chemical class 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229920000359 diblock copolymer Polymers 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 150000002924 oxiranes Chemical class 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 125000003011 styrenyl group Chemical group [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 2
- PMJHHCWVYXUKFD-SNAWJCMRSA-N (E)-1,3-pentadiene Chemical compound C\C=C\C=C PMJHHCWVYXUKFD-SNAWJCMRSA-N 0.000 description 1
- WVAFEFUPWRPQSY-UHFFFAOYSA-N 1,2,3-tris(ethenyl)benzene Chemical compound C=CC1=CC=CC(C=C)=C1C=C WVAFEFUPWRPQSY-UHFFFAOYSA-N 0.000 description 1
- SBYMUDUGTIKLCR-UHFFFAOYSA-N 2-chloroethenylbenzene Chemical compound ClC=CC1=CC=CC=C1 SBYMUDUGTIKLCR-UHFFFAOYSA-N 0.000 description 1
- WDQMWEYDKDCEHT-UHFFFAOYSA-N 2-ethylhexyl 2-methylprop-2-enoate Chemical compound CCCCC(CC)COC(=O)C(C)=C WDQMWEYDKDCEHT-UHFFFAOYSA-N 0.000 description 1
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
- WHNPOQXWAMXPTA-UHFFFAOYSA-N 3-methylbut-2-enamide Chemical compound CC(C)=CC(N)=O WHNPOQXWAMXPTA-UHFFFAOYSA-N 0.000 description 1
- OKKRPWIIYQTPQF-UHFFFAOYSA-N Trimethylolpropane trimethacrylate Chemical compound CC(=C)C(=O)OCC(CC)(COC(=O)C(C)=C)COC(=O)C(C)=C OKKRPWIIYQTPQF-UHFFFAOYSA-N 0.000 description 1
- 150000003926 acrylamides Chemical class 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920006397 acrylic thermoplastic Polymers 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000010539 anionic addition polymerization reaction Methods 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- IMJGQTCMUZMLRZ-UHFFFAOYSA-N buta-1,3-dien-2-ylbenzene Chemical compound C=CC(=C)C1=CC=CC=C1 IMJGQTCMUZMLRZ-UHFFFAOYSA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000000113 differential scanning calorimetry Methods 0.000 description 1
- 238000004455 differential thermal analysis Methods 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- FFYWKOUKJFCBAM-UHFFFAOYSA-N ethenyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC=C FFYWKOUKJFCBAM-UHFFFAOYSA-N 0.000 description 1
- BLCTWBJQROOONQ-UHFFFAOYSA-N ethenyl prop-2-enoate Chemical compound C=COC(=O)C=C BLCTWBJQROOONQ-UHFFFAOYSA-N 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- PMJHHCWVYXUKFD-UHFFFAOYSA-N piperylene Natural products CC=CC=C PMJHHCWVYXUKFD-UHFFFAOYSA-N 0.000 description 1
- 229920001485 poly(butyl acrylate) polymer Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/18—Homopolymers or copolymers of nitriles
- C08L33/20—Homopolymers or copolymers of acrylonitrile
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/08—Copolymers of styrene
- C08L25/12—Copolymers of styrene with unsaturated nitriles
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/10—Homopolymers or copolymers of methacrylic acid esters
- C08L33/12—Homopolymers or copolymers of methyl methacrylate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L35/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical, and containing at least one other carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L35/06—Copolymers with vinyl aromatic monomers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/04—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
Definitions
- the invention relates to transparent compositions having excellent mechanical properties, in particular with regard to impact resistance.
- composition comprising the combination of a copolymer based on acrylonitrile and a vinyl aromatic monomer, of a particular copolymer comprising at least three blocks and of a particulate copolymer comprising a core and at least one shell (called “core-shell” or core-shell copolymers).
- the invention finds, in particular, its application in fields requiring the use of transparent and impact-resistant materials, such as the automotive, aeronautical, aerospace, nautical, household, electronic, and toy fields.
- the inventors have set themselves the goal of developing such materials.
- the present invention relates, according to a first object, to a composition
- a composition comprising:
- At least one copolymer (D) comprising repeating units resulting from the polymerization of acrylonitrile and at least one vinyl aromatic monomer;
- At least one block copolymer comprising at least three blocks A, B and C, the three blocks A, B and
- each block being either a homopolymer or a copolymer obtained from two or more monomers
- block A being connected to block B and block B to block C by means of a covalent bond or of an intermediate bridging group connected to one of these blocks by a covalent bond and to the other block by another covalent bond and such that:
- - block B is incompatible with the copolymer (D) and is incompatible with block A;
- the copolymer (D) can be present in the composition at a content ranging from 27 to 80% by weight relative to the total weight of the composition, for example from 30 to 80% by weight.
- vinyl aromatic monomers capable of entering into the constitution of the copolymer (D) mention may be made of styrene, 1 ' ⁇ -methylstyrene and chlorostyrene.
- copolymers (D) there may be mentioned:
- graft copolymers comprising a main chain resulting from the polymerization of butadiene, preferably mainly 1,4-butadiene or from the copolymerization of butadiene and acrylonitrile and of grafts resulting from the polymerization of styrene and acrylonitrile (these graft copolymers being sometimes designated by the abbreviation ABS); and
- the SAN copolymers can be included in a mixture comprising elastomers.
- elastomers can be, for example, 1 EPR (abbreviation meaning ethylene-propylene-rubber or ethylene-propylene elastomer), 1 EPDM (abbreviation meaning ethylene-propylene-diene rubber or ethylene-propylene-diene elastomer), polybutadiene, acrylonitrile-butadiene copolymer, polyisoprene, isoprene-acrylonitrile copolymer.
- 1 EPR abbreviation meaning ethylene-propylene-rubber or ethylene-propylene elastomer
- 1 EPDM abbreviation meaning ethylene-propylene-diene rubber or ethylene-propylene-diene elastomer
- polybutadiene acrylonitrile-butadiene copolymer
- polyisoprene polyisoprene-acrylonitrile copolymer
- part of the styrene can be replaced by unsaturated monomers which can be copolymerized with styrene, such as ⁇ -methylstyrene and the esters.
- Copolymers (D) capable of being used are those described in US Pat. No. 6,689,827.
- the number-average molar mass of the copolymer (D) is advantageously between 10,000 and 350,000 g / mole and preferably between 20,000 and 200,000 g / mole.
- the percentage by weight of acrylonitrile in the copolymer (D) is between 2 and 50%, more often between 9 and 40%, preferably between 12 and 35%, and more advantageously still between 22 and 30%.
- the block copolymer included in the compositions of the invention may be present, in the compositions of the invention, at a content ranging from 0.3 to 20% by weight relative to the total weight of the composition, and more advantageously between 0.3 and 10% and again between 0.5 and 5%.
- the block copolymer comprises at least three blocks A, B and C so that block A is connected to block B and block B to block C by means of one or more single covalent bonds. In the case of several covalent bonds, between block A and block B and / or between block B and block C, there may be a single motif or a series of motifs serving to join the blocks together.
- the latter can come from a so-called moderating monomer used in the synthesis of the triblock.
- this can be an oligomer resulting from a chain of monomer units of at least two different monomers in an alternating or random order.
- Such an oligomer can link block A to block B and the same oligomer or a different oligomer can link block B to block C.
- Block A of the block copolymer is considered to be compatible with the copolymer (D) if the polymer A identical to this block (therefore without blocks B and C) is compatible with this copolymer (D) in the molten state.
- blocks A and B are considered to be incompatible if the polymers A and B identical to these blocks are incompatible.
- compatibility between two polymers is meant the ability of one to dissolve in the other in the molten state or their total miscibility. Otherwise, the polymers or blocks are said to be incompatible.
- the enthalpy of mixing cannot however be measured in a conventional manner for all the polymers, and therefore the compatibility can only be determined indirectly, for example by measurements of viscoelastic analysis in torsion or in oscillation or by differential scanning calorimetry.
- two glass transition temperatures (Tg) can be detected for the mixture: at least one of the two Tg is different from the Tg of the pure compounds and lies in the temperature range between the two Tg of the compounds pure.
- the mixture of two completely miscible polymers has a single Tg.
- the block A is chosen from homo- and copolymers of alkyl (alkyl) acrylate.
- alkyl (alkyl) acrylates mention may be made of methyl methacrylate (MAM), methyl acrylate, ethyl acrylate.
- Block A can also be a homopolymer or copolymer based on vinyl acetate and its derivatives (such as VEOVA sold by the company Shell).
- the block A is poly (methyl methacrylate) (PMMA).
- PMMA poly (methyl methacrylate)
- this PMMA is syndiotactic and its glass transition temperature Tg ( ⁇ ) ⁇ measured by differential thermal analysis, is from +120 ° C. to +150 ° C.
- the Tg of block B is less than 0 ° C., preferably less than -40 ° C. and better still between -100 ° C. and -50 ° C.
- the monomer used to synthesize block B can be a diene chosen from butadiene, isoprene, 2,3-dimethyl-1,3-butadiene, 1,3-pentadiene, 2-phenyl-1,3- butadiene.
- Block B is advantageously chosen from poly (dienes), in particular a poly (butadiene), a poly (isoprene) and their random copolymers, or also from poly (dienes) partially or completely hydrogenated.
- the polybutadienes that can be envisaged, there may advantageously be mentioned those whose Tg is the lowest, for example polybutadiene-1, 4 of Tg (around -90 ° C.) lower than that of polybutadiene-1, 2. (around 0 ° C).
- B blocks can also be hydrogenated. This hydrogenation is carried out according to the usual techniques.
- Tg -15 ° C
- n-butyl acrylate is used.
- the acrylates are different from those in block A to respect the condition that B and A must be incompatible.
- block B is a polybutadiene-1, 4.
- block C has a glass transition temperature Tg ( C ) or a melting temperature Tf (Q) higher than the Tg ( g ) of block B- This characteristic gives the possibility that block C is in the state vitreous or either in a partially crystalline state and the block B in the elastomeric state, for the same temperature of use Tp.
- the block polymers C can have a Tg ( Q ) or a Tf greater than the Tg ( g ) , they can be in a relatively rigid glassy state at the same operating temperature.
- the blocks C can be incompatible with the copolymer (D) and are incompatible with the blocks B, they form a rigid discrete phase inside the composition by forming nanodomains included in the composition and serving as anchors in the zone of one of the ends of each block B.
- the other end of each block B is connected to a block A which has a strong affinity with the copolymer (D). This strong affinity provides a second anchoring in the area of the second end of block B.
- the block C is chosen from homopolymers of styrene or of ⁇ -methylstyrene or the copolymers of these.
- Block copolymers which contain blocks derived from alkyl (alkyl) acrylate can in particular be prepared by anionic polymerization, for example according to the methods described in patent applications EP 524,054 and EP 749,987.
- the block copolymer is a triblock ABC copolymer, for example a poly (methyl methacrylate-23-butadiene-jb-styrene).
- the block copolymer in particular when it is a triblock ABC copolymer, may contain, as secondary products of its synthesis, a diblock copolymer BC and optionally homopolymer C.
- the triblock copolymer ABC may also contain, as secondary products of its synthesis , a diblock copolymer AB and optionally one homopolymer A.
- the synthesis of a triblock ABC copolymer is preferably done by successively joining the block A to the block B then to the block C or conversely the block C to the block B then to the block A according to the nature of the three blocks A, B and C , block A being by definition the one which is compatible with (D).
- the ABC triblock copolymer can also contain symmetrical linear or star block copolymers of the ABA or CBC type.
- the total amount by weight of secondary synthesis products is less than 2 times the amount of triblock ABC.
- this amount is less than once and better still 0.5 times the amount of ABC triblock.
- the secondary products are essentially the diblock BC, the amount of BC can be between 10 and 35 parts by weight for respectively 90 to 65 parts of ABC and is advantageously around 15 parts for 85 parts of ABC.
- the ABC triblock copolymer consists of: • 10 to 90 and preferably 15 to 80 parts by weight of sequences A,
- the number average molar masses (g / mole) of the different blocks are generally between:
- these proportions include any secondary synthesis products.
- compositions of the invention also comprise a particulate copolymer which is in the form of fine particles having an elastomer core and at least one thermoplastic shell, the particle size generally being less than ⁇ m and advantageously between 50 and 300 nm.
- This particulate copolymer is prepared using emulsion polymerization.
- the particulate copolymer can be present in the composition at a content ranging from 20 to 50% by weight, preferably 35 to 40% by weight relative to the total weight of the composition.
- the heart can be made for example:
- butadiene copolymers with at most 30 mol% of a vinyl monomer.
- the vinyl monomer can be styrene, an alkylstyrene, acrylonitrile or an alkyl (meth) acrylate.
- the heart can also be made up:
- alkyl (meth) acrylate and a vinyl monomer.
- the alkyl (meth) acrylate is advantageously n-butyl acrylate.
- the vinyl monomer can be styrene, an alkylstyrene, acrylonitrile, butadiene or isoprene.
- the heart can be advantageously crosslinked in whole or in part. It suffices to add at least difunctional monomers during the preparation of the core, these monomers can be chosen from poly (meth) acrylic esters of polyols such as butylene di (meth) acrylate and trimethylol propane trimethacrylate. Other difunctional monomers are for example divinylbenzene, trivinylbenzene, vinyl acrylate and vinyl methacrylate.
- the heart can also be crosslinked by introducing therein, by grafting or as a comonomer during the polymerization, unsaturated functional monomers such as anhydrides of unsaturated carboxylic acids, unsaturated carboxylic acids and unsaturated epoxides or allyl cyanurates. By way of example, mention may be made of maleic anhydride, (meth) acrylic acid and glycidyl methacrylate.
- the bark or barks may consist of:
- a copolymer comprising at least 70 mol% of a majority monomer chosen from styrene, an alkylstyrene or a methyl methacrylate and at least one comonomer chosen from an alkyl (meth) acrylate, vinyl acetate, 1 acrylonitrile, styrene, an alkylstyrene it being understood that the majority monomer and the comonomer are different.
- the bark can be functionalized by introducing, by grafting or as a comonomer during the polymerization, unsaturated functional monomers such as anhydrides of unsaturated carboxylic acids, unsaturated carboxylic acids, unsaturated epoxides or allyl cyanurates.
- unsaturated functional monomers such as anhydrides of unsaturated carboxylic acids, unsaturated carboxylic acids, unsaturated epoxides or allyl cyanurates.
- unsaturated functional monomers such as anhydrides of unsaturated carboxylic acids, unsaturated carboxylic acids, unsaturated epoxides or allyl cyanurates.
- unsaturated functional monomers such as anhydrides of unsaturated carboxylic acids, unsaturated carboxylic acids, unsaturated epoxides or allyl cyanurates.
- maleic anhydride (meth) acrylic acid and glycidyl methacrylate.
- particulate copolymer By way of example of a particulate copolymer, mention may be made of core copolymers bark having a polystyrene bark and heart - bark copolymers having a bark made of polymethyl methacrylate. There are also core-shell copolymers with two barks, one made of polystyrene and the other outside of polymethyl methacrylate. Examples of particulate copolymer, as well as their preparation process, are described in the following patents: US 4,180,494, US 3,808,180, US 4,096,202, US 4,260,693, US 3,287,443, US 3,657,391, US 4,299,928, US 3,985,704, US 5,773,520.
- the core represents, by weight, 70 to 90% of the particulate copolymer and the shell from 30 to 10%.
- the particulate copolymer can be of the soft / hard type.
- a particulate copolymer of the soft / hard type mention may be made of that comprising:
- a particulate copolymer of the soft / hard type there may be mentioned that having a core of poly (butyl acrylate) or of a copolymer of butyl acrylate and butadiene and a shell of polymethyl methacrylate.
- the particulate copolymer can also be of the hard / soft / hard type, that is to say that it contains in order a hard heart, a soft bark and a hard bark.
- the hard parts can be made of the polymers of the bark of the previous soft / hard and the soft parts can be made of the core polymers of the previous soft / hard.
- particulate copolymer of the hard / soft / hard type one can include that comprising:
- the particulate copolymer can also be of the hard (heart) / soft / semi-hard type.
- the "semi-hard" outer bark consists of two barks: one intermediate and the other outer.
- the intermediate shell may be a copolymer of methyl methacrylate, styrene and at least one monomer chosen from alkyl acrylates, butadiene and isoprene.
- the outer shell may be a polymethyl methacrylate homopolymer or a copolymer of methyl methacrylate, styrene and at least one monomer chosen from alkyl acrylates, acrylamides (and in particular dimethyl acrylamide), a butadiene, isoprene.
- An example of a hard / soft / semi-hard particulate copolymer is that comprising in this order:
- compositions of the invention may include polymethyl methacrylate.
- compositions (Comp.l to Comp.5) were tested.
- SAN denotes a copolymer of styrene, of acrylonitrile (in an amount equal to 30% by weight relative to the total weight of the copolymer) and fluidity index (MFR) at 210 ° C. under 10 kg of 30 g / 10 min (measured according to ISO 1133);
- PMMA denotes a polymethyl methacrylate of molecular weight by weight of 100 kg / mol
- - MBS denotes a particulate copolymer comprising a core essentially based on butadiene and styrene and a bark of polymethyl methacrylate;
- - SBM denotes a block copolymer comprising a polystyrene block, a polybutadiene block, a polymethyl methacrylate block with a molecular weight of 80 kg / mol.
- compositions are injected at an injection temperature of 240 ° C.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Graft Or Block Polymers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0512480A FR2894586A1 (fr) | 2005-12-08 | 2005-12-08 | Composition comprenant un copolymere a base d'acrylonitrile et d'un monomere vinylaromatique,un copolymere comprenant au moins trois blocs et un copolymere particulaire du type coeur-ecorce |
| US77566206P | 2006-02-22 | 2006-02-22 | |
| PCT/EP2006/069463 WO2007065943A1 (fr) | 2005-12-08 | 2006-12-08 | Composition comprenant un copolymere a base d'acrylonitrile et d'un monomere vinylaromatique, un copolymere comprenant au moins trois blocs et un copolymere particulaire du type coeur-ecorce. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1957578A1 true EP1957578A1 (fr) | 2008-08-20 |
Family
ID=37311938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06819926A Withdrawn EP1957578A1 (fr) | 2005-12-08 | 2006-12-08 | Composition comprenant un copolymere a base d'acrylonitrile et d'un monomere vinylaromatique, un copolymere comprenant au moins trois blocs et un copolymere particulaire du type coeur-ecorce. |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20090088526A1 (fr) |
| EP (1) | EP1957578A1 (fr) |
| JP (1) | JP2009518490A (fr) |
| FR (1) | FR2894586A1 (fr) |
| WO (1) | WO2007065943A1 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2254947B1 (fr) * | 2008-03-05 | 2013-09-11 | Styrolution GmbH | Mélanges rigides de copolymères d'alpha-méthylstyrène-acrylonitrile et de copolymères séquencés |
| MY178771A (en) * | 2014-02-20 | 2020-10-20 | Asahi Chemical Ind | Thermoplastic resin composition, and molded product and method for producing same |
| WO2017174377A1 (fr) * | 2016-04-08 | 2017-10-12 | Sabic Global Technologies B.V. | Composition polymère comprenant un polymère (méth)acrylique et un polyacrylonitrile |
| CN119332523B (zh) * | 2024-12-24 | 2025-04-11 | 杭州传化精细化工有限公司 | 一种免水洗印花粘合剂及其制备方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4413092A (en) * | 1978-02-28 | 1983-11-01 | Occidental Chemical Corporation | Vinyl halide polymer blends of enhanced impact resistance |
| DE19638255A1 (de) * | 1996-09-19 | 1998-03-26 | Basf Ag | Thermoplastische Formmassen |
| JP2000239476A (ja) * | 1999-02-22 | 2000-09-05 | Kanegafuchi Chem Ind Co Ltd | 非晶性ポリオレフィン系樹脂組成物 |
| AU2003285399A1 (en) * | 2002-10-21 | 2004-05-13 | Arkema | Ductile and transparent thermoplastic compositions comprising an amorphous matrix and a block copolymer |
| DE10330397A1 (de) * | 2003-07-04 | 2005-01-20 | Basf Ag | Mischung aus Propfcopolymeren und Styrol-Butadien-Blockcopolymeren |
-
2005
- 2005-12-08 FR FR0512480A patent/FR2894586A1/fr not_active Withdrawn
-
2006
- 2006-12-08 WO PCT/EP2006/069463 patent/WO2007065943A1/fr not_active Ceased
- 2006-12-08 EP EP06819926A patent/EP1957578A1/fr not_active Withdrawn
- 2006-12-08 US US12/096,506 patent/US20090088526A1/en not_active Abandoned
- 2006-12-08 JP JP2008543842A patent/JP2009518490A/ja not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007065943A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009518490A (ja) | 2009-05-07 |
| WO2007065943A1 (fr) | 2007-06-14 |
| FR2894586A1 (fr) | 2007-06-15 |
| US20090088526A1 (en) | 2009-04-02 |
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