WO2022154126A1 - 水分散体組成物、当該水分散体組成物の製造方法およびエチレン・α-オレフィン共重合体酸変性物 - Google Patents
水分散体組成物、当該水分散体組成物の製造方法およびエチレン・α-オレフィン共重合体酸変性物 Download PDFInfo
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- WO2022154126A1 WO2022154126A1 PCT/JP2022/001501 JP2022001501W WO2022154126A1 WO 2022154126 A1 WO2022154126 A1 WO 2022154126A1 JP 2022001501 W JP2022001501 W JP 2022001501W WO 2022154126 A1 WO2022154126 A1 WO 2022154126A1
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- ethylene
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- 125000004184 methoxymethyl group Chemical group [H]C([H])([H])OC([H])([H])* 0.000 description 1
- OJURWUUOVGOHJZ-UHFFFAOYSA-N methyl 2-[(2-acetyloxyphenyl)methyl-[2-[(2-acetyloxyphenyl)methyl-(2-methoxy-2-oxoethyl)amino]ethyl]amino]acetate Chemical compound C=1C=CC=C(OC(C)=O)C=1CN(CC(=O)OC)CCN(CC(=O)OC)CC1=CC=CC=C1OC(C)=O OJURWUUOVGOHJZ-UHFFFAOYSA-N 0.000 description 1
- MPHUYCIKFIKENX-UHFFFAOYSA-N methyl 2-ethenylbenzoate Chemical compound COC(=O)C1=CC=CC=C1C=C MPHUYCIKFIKENX-UHFFFAOYSA-N 0.000 description 1
- UJNZOIKQAUQOCN-UHFFFAOYSA-N methyl(diphenyl)phosphane Chemical compound C=1C=CC=CC=1P(C)C1=CC=CC=C1 UJNZOIKQAUQOCN-UHFFFAOYSA-N 0.000 description 1
- 125000004458 methylaminocarbonyl group Chemical group [H]N(C(*)=O)C([H])([H])[H] 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- JESXATFQYMPTNL-UHFFFAOYSA-N mono-hydroxyphenyl-ethylene Natural products OC1=CC=CC=C1C=C JESXATFQYMPTNL-UHFFFAOYSA-N 0.000 description 1
- 229940005650 monomethyl fumarate Drugs 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 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
- 125000003136 n-heptyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 125000002560 nitrile group Chemical group 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 description 1
- 125000003518 norbornenyl group Chemical group C12(C=CC(CC1)C2)* 0.000 description 1
- 125000002868 norbornyl group Chemical group C12(CCC(CC1)C2)* 0.000 description 1
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 1
- 150000002899 organoaluminium compounds Chemical class 0.000 description 1
- 150000002903 organophosphorus compounds Chemical class 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 125000003854 p-chlorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1Cl 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 229910052884 pectolite Inorganic materials 0.000 description 1
- 125000006340 pentafluoro ethyl group Chemical group FC(F)(F)C(F)(F)* 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 125000001792 phenanthrenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C=CC12)* 0.000 description 1
- 125000005561 phenanthryl group Chemical group 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 description 1
- 229930015698 phenylpropene Natural products 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- DOIRQSBPFJWKBE-UHFFFAOYSA-N phthalic acid di-n-butyl ester Natural products CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 1
- 125000003386 piperidinyl group Chemical group 0.000 description 1
- 229960005235 piperonyl butoxide Drugs 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920013639 polyalphaolefin Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 125000001501 propionyl group Chemical group O=C([*])C([H])([H])C([H])([H])[H] 0.000 description 1
- OBRKWFIGZSMARO-UHFFFAOYSA-N propylalumane Chemical class [AlH2]CCC OBRKWFIGZSMARO-UHFFFAOYSA-N 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 125000004309 pyranyl group Chemical group O1C(C=CC=C1)* 0.000 description 1
- 125000001725 pyrenyl group Chemical group 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 229910052903 pyrophyllite Inorganic materials 0.000 description 1
- 125000000719 pyrrolidinyl group Chemical group 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 229910052705 radium Inorganic materials 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 1
- 239000004299 sodium benzoate Substances 0.000 description 1
- 235000010234 sodium benzoate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 150000005621 tetraalkylammonium salts Chemical class 0.000 description 1
- IFLREYGFSNHWGE-UHFFFAOYSA-N tetracene Chemical compound C1=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C21 IFLREYGFSNHWGE-UHFFFAOYSA-N 0.000 description 1
- XBFJAVXCNXDMBH-UHFFFAOYSA-N tetracyclo[6.2.1.1(3,6).0(2,7)]dodec-4-ene Chemical compound C1C(C23)C=CC1C3C1CC2CC1 XBFJAVXCNXDMBH-UHFFFAOYSA-N 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000009988 textile finishing Methods 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 1
- 150000003613 toluenes Chemical class 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- URNNTTSIHDDFIB-UHFFFAOYSA-N tri(cyclooctyl)alumane Chemical compound C1CCCCCCC1[Al](C1CCCCCCC1)C1CCCCCCC1 URNNTTSIHDDFIB-UHFFFAOYSA-N 0.000 description 1
- SQBBHCOIQXKPHL-UHFFFAOYSA-N tributylalumane Chemical compound CCCC[Al](CCCC)CCCC SQBBHCOIQXKPHL-UHFFFAOYSA-N 0.000 description 1
- ZIYNWDQDHKSRCE-UHFFFAOYSA-N tricyclohexylalumane Chemical compound C1CCCCC1[Al](C1CCCCC1)C1CCCCC1 ZIYNWDQDHKSRCE-UHFFFAOYSA-N 0.000 description 1
- ZMANZCXQSJIPKH-UHFFFAOYSA-O triethylammonium ion Chemical compound CC[NH+](CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-O 0.000 description 1
- RXJKFRMDXUJTEX-UHFFFAOYSA-N triethylphosphine Chemical compound CCP(CC)CC RXJKFRMDXUJTEX-UHFFFAOYSA-N 0.000 description 1
- ORYGRKHDLWYTKX-UHFFFAOYSA-N trihexylalumane Chemical compound CCCCCC[Al](CCCCCC)CCCCCC ORYGRKHDLWYTKX-UHFFFAOYSA-N 0.000 description 1
- UORVGPXVDQYIDP-UHFFFAOYSA-N trihydridoboron Substances B UORVGPXVDQYIDP-UHFFFAOYSA-N 0.000 description 1
- 125000000025 triisopropylsilyl group Chemical group C(C)(C)[Si](C(C)C)(C(C)C)* 0.000 description 1
- UYPYRKYUKCHHIB-UHFFFAOYSA-N trimethylamine N-oxide Chemical compound C[N+](C)(C)[O-] UYPYRKYUKCHHIB-UHFFFAOYSA-N 0.000 description 1
- GETQZCLCWQTVFV-UHFFFAOYSA-O trimethylammonium Chemical compound C[NH+](C)C GETQZCLCWQTVFV-UHFFFAOYSA-O 0.000 description 1
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- LFXVBWRMVZPLFK-UHFFFAOYSA-N trioctylalumane Chemical compound CCCCCCCC[Al](CCCCCCCC)CCCCCCCC LFXVBWRMVZPLFK-UHFFFAOYSA-N 0.000 description 1
- JQPMDTQDAXRDGS-UHFFFAOYSA-N triphenylalumane Chemical compound C1=CC=CC=C1[Al](C=1C=CC=CC=1)C1=CC=CC=C1 JQPMDTQDAXRDGS-UHFFFAOYSA-N 0.000 description 1
- XRALRSQLQXKXKP-UHFFFAOYSA-N tris(3,5-dimethylphenyl)phosphane Chemical compound CC1=CC(C)=CC(P(C=2C=C(C)C=C(C)C=2)C=2C=C(C)C=C(C)C=2)=C1 XRALRSQLQXKXKP-UHFFFAOYSA-N 0.000 description 1
- WSITXTIRYQMZHM-UHFFFAOYSA-N tris(4-methylphenyl)alumane Chemical compound C1=CC(C)=CC=C1[Al](C=1C=CC(C)=CC=1)C1=CC=C(C)C=C1 WSITXTIRYQMZHM-UHFFFAOYSA-N 0.000 description 1
- WXAZIUYTQHYBFW-UHFFFAOYSA-O tris(4-methylphenyl)phosphanium Chemical compound C1=CC(C)=CC=C1[PH+](C=1C=CC(C)=CC=1)C1=CC=C(C)C=C1 WXAZIUYTQHYBFW-UHFFFAOYSA-O 0.000 description 1
- RTAKQLTYPVIOBZ-UHFFFAOYSA-N tritert-butylalumane Chemical compound CC(C)(C)[Al](C(C)(C)C)C(C)(C)C RTAKQLTYPVIOBZ-UHFFFAOYSA-N 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000004260 weight control Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
- DUNKXUFBGCUVQW-UHFFFAOYSA-J zirconium tetrachloride Chemical compound Cl[Zr](Cl)(Cl)Cl DUNKXUFBGCUVQW-UHFFFAOYSA-J 0.000 description 1
- 229910006592 α-Sn Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
- C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
-
- 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
- C08L51/06—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 homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
-
- 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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
- C08J3/05—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from solid polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D151/00—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
- C09D151/06—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/65908—Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with an ionising compound other than alumoxane, e.g. (C6F5)4B-X+
-
- 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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/26—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment
- C08J2323/30—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment by oxidation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
Definitions
- the present invention relates to an aqueous dispersion composition having good dispersibility, a method for producing the aqueous dispersion composition, and an ethylene / ⁇ -olefin copolymer acid-modified product.
- base materials such as plastic films, vapor-deposited films, metal foils, papers, and non-woven fabrics, or base materials and other adherends are bonded (that is, heat-sealed) by heat and pressure. It is known.
- heat sealing a method of directly bonding the base materials to each other or the base material and the adherend is usually used, but in order to improve the heat sealability between the base material and the adherend.
- a method is also used in which a heat sealant (adhesive) layer is formed on the base material in advance, and the base materials or the base material and other adherends are bonded to each other via the adhesive layer. ..
- Adhesives used in such heat sealants include, for example, at least one highly crystallinity polyolefin having a crystallinity greater than 50%, at least one dispersant, and an aqueous dispersion containing water. Proposed. (See, for example, Patent Document 1).
- the applicant contains at least one selected from the specific ethylene / ⁇ -olefin copolymer (A) and the acid-modified product (B) of the above (A) in the range of 0.01 to 50% by mass.
- the aqueous dispersion composition to be used has been found to improve the dispersibility of the acid-modified product (B) and the like, and has been proposed as Japanese Patent Application Laid-Open No. 2016-102157 (Patent Document 2). There is a demand for an aqueous dispersion having a good coating property on a base material or the like.
- An object of the present invention is to obtain an aqueous dispersion having excellent coatability on a substrate or the like having improved dispersibility of an ethylene / ⁇ -olefin copolymer acid-modified product.
- the present inventors modified the ethylene / ⁇ -olefin copolymer forming the aqueous dispersion with an unsaturated carboxylic acid and a derivative thereof. It has been found that the above object can be achieved by using an acid-modified product having a high modification rate, in other words, an acid-modified product having a low content of unreacted molecules.
- the present invention is an acid-modified product of the ethylene / ⁇ -olefin copolymer (A) satisfying the following (A1) to (A6), and the ethylene / ⁇ - satisfying the following (B1) to (B5).
- the present invention relates to an aqueous dispersion composition comprising an olefin copolymer acid-modified product (B) in the range of 0.01 to 50% by mass.
- A1 The content of ethylene units is in the range of 30 to 85 mol%.
- the kinematic viscosity at 100 ° C. is in the range of 10 to 5,000 mm 2 / s.
- the weight average molecular weight measured by gel permeation chromatography (GPC) and obtained by polystyrene conversion is in the range of 1,000 to 50,000.
- the molecular weight distribution (Mw / Mn) is 2.5 or less in the molecular weight obtained by polystyrene conversion as measured by gel permeation chromatography (GPC).
- the B value represented by the following formula [1] is 1.1 or more.
- PE indicates the mole fraction of ethylene units
- PO indicates the mole fraction of ⁇ -olefin units
- PO E indicates the mole fraction of the ethylene / ⁇ -olefin chain of the entire dyad chain. Indicates the fraction.
- A6 The amount of unsaturated bonds measured by 1 H-NMR is less than 0.5 per 1000 carbon atoms.
- B1 The acid value is in the range of 1 to 300 mgKOH / g.
- B2 The apparent viscosity at 150 ° C. is in the range of 1 to 1,000 cPs.
- the weight average molecular weight measured by gel permeation chromatography (GPC) and obtained by polystyrene conversion is in the range of 1,000 to 50,000.
- the molecular weight distribution (Mw / Mn) is 2.5 or less in the molecular weight obtained by polystyrene conversion as measured by gel permeation chromatography (GPC).
- the weight fraction of unreacted molecules measured by high performance liquid chromatography (HPLC) is 59% or less.
- the particle size of the ethylene / ⁇ -olefin copolymer acid-modified product (B) forming the aqueous dispersion becomes smaller and the dispersibility is further improved, so that the emulsion becomes difficult to separate.
- the long-term stability is improved, the interaction between particles is increased and the viscosity is increased, so that the adhesion to the substrate is improved, and the liquid dripping is suppressed, so that the coating property to the substrate etc. is improved. Also improves.
- the aqueous dispersion composition of the present invention contains an acid-modified product (B) of the ethylene / ⁇ -olefin copolymer (A) described below.
- component (A) and “component (B)"
- a structural unit derived from a monomer is also referred to as a “monomer unit”.
- the ethylene / ⁇ -olefin copolymer (A) which is the source of the acid-modified product (B) of the ethylene / ⁇ -olefin copolymer forming the aqueous dispersion of the present invention, satisfies the following (A1) to (A6). ..
- the content of ethylene units is in the range of 30 to 85 mol%.
- the content of ethylene units in the component (A) is in the range of 30 to 85 mol%, preferably in the range of 40 to 70 mol%, and particularly preferably in the range of 45 to 65 mol%. If the content is excessively out of the above range, the copolymer becomes crystalline, and as a result, the viscosity of the copolymer increases or becomes solid, and the dispersibility of the copolymer in water becomes high. Getting worse.
- the aqueous dispersion composition of the present invention when used as, for example, a die-casting mold release agent, it is heated by heat. It is not preferable because the generated oxidative deterioration product is likely to be deposited on the mold surface.
- the content of ethylene units in the component (A) is measured by 13 C-NMR according to the method described in the "Polymer Analysis Handbook" (Asakura Shoten, First Edition, P184-211). It is also possible to measure the sample obtained by this method as a known sample by using Fourier transform infrared spectroscopy (FT-IR). The total content of all monomer units is 100 mol%.
- FT-IR Fourier transform infrared spectroscopy
- the kinematic viscosity at 100 ° C. is in the range of 10 to 5,000 mm 2 / s.
- the kinematic viscosity of the component (A) is a value measured by the method described in JIS K2283.
- the kinematic viscosity of component (A) at 100 ° C. is in the range of 10 to 5,000 mm 2 / s, preferably 10 to 2,500 mm 2 / s, more preferably 15 to 2,500 mm 2 / s, and particularly preferably. It is in the range of 15 to 500 mm 2 / s.
- the kinematic viscosity is excessively lower than the above range, it is easily ignited due to a large amount of easily volatile components and the storage stability is deteriorated, the evaporation weight loss is increased in the aqueous dispersion, and for example, it is used as a mold release agent for die casting. It is not preferable that the high molecular weight component that easily adheres to the mold is reduced. If the kinematic viscosity exceeds the above range excessively, the viscosity of the copolymer increases and it becomes difficult to uniformly disperse it in water.
- the weight average molecular weight is in the range of 1,000 to 50,000.
- the weight average molecular weight (Mw) of the component (A) is a value obtained by gel permeation chromatography (GPC) according to a method described later and converted to standard polystyrene.
- the weight average molecular weight (Mw) of the component (A) is in the range of 1,000 to 50,000, preferably 1,500 to 30,000, more preferably 1,500 to 20,000, and particularly preferably 1,. It is in the range of 500 to 7,000.
- Mw is excessively lower than the above range, it is easily ignited due to a large amount of volatile components and the storage stability is deteriorated, the evaporation weight loss is increased in the aqueous dispersion, and for example, when it is used as a mold release agent for die casting. It is not preferable because the high molecular weight component that easily adheres to the mold is reduced. If Mw exceeds the above range excessively, the viscosity of the copolymer increases and it becomes difficult to uniformly disperse it in water.
- the molecular weight distribution is 2.5 or less.
- the molecular weight distribution of the component (A) was measured by gel permeation chromatography (GPC) according to the method described later, and the ratio (Mw) of the weight average molecular weight (Mw) and the number average molecular weight (Mn) obtained by standard polystyrene conversion was obtained. / Mn) is calculated.
- the Mw / Mn of the component (A) is 2.5 or less, preferably 2.3 or less, and more preferably 2.0 or less. If the molecular weight distribution exceeds the above range excessively, it means that the copolymer contains a large amount of low molecular weight components and high molecular weight components.
- the copolymer contains a large amount of low molecular weight components, it is easily ignited due to a large amount of easily volatile components, which deteriorates the storage stability and increases the evaporation loss in the aqueous dispersion.
- the copolymer contains a large amount of high molecular weight components, the viscosity of the copolymer increases and it becomes difficult to uniformly disperse in water.
- the B value is 1.1 or more.
- the B value of the component (A) represented by the following formula [1] is 1.1 or more, preferably 1.2 or more.
- the upper limit of the B value is not particularly limited, but is usually 2.0 or less.
- PE indicates the mole fraction of ethylene units
- PO indicates the mole fraction of ⁇ -olefin units
- PO E indicates the mole fraction of the ethylene / ⁇ -olefin chain of the entire dyad chain. Shows the rate.
- the B value is an index showing the randomness of the copolymer chain distribution in the copolymer, and PE, PO and POE in the above formula [1] are measured in 13 C-NMR spectra and J. .. C. Randall [Macropolymers, 15,353 (1982)], J. Mol. It can be obtained based on the reports of Ray [Macromolecules, 10, 773 (1977)] and other publicly known documents such as "Polymer Analysis Handbook" (Asakura Shoten, first edition, pp. 184 to 211).
- the B value is larger, the crystallinity of the component (A) is less likely to occur, the viscosity of the component (A) does not increase or the component (A) does not become solid, and the dispersibility in water is less likely to deteriorate. ..
- the specific measurement conditions for the B value are as described in the examples.
- (A6) 1 The amount of unsaturated bonds measured by 1 H-NMR is less than 0.5 per 1000 carbon atoms.
- the total number of double bonds derived from vinyl, vinylidene, disubstituted olefins, trisubstituted olefins, etc. measured by 1 H-NMR in the molecule of component (A) (hereinafter also referred to as "unsaturated bond amount"). However, for every 1000 carbon atoms, the number is less than 0.5, preferably less than 0.3, more preferably less than 0.2, and particularly preferably less than 0.1. When the unsaturated bond amount is within the range, the heat resistance of the component (A) becomes good.
- the specific measurement conditions for the unsaturated bond amount are as described in the examples.
- the component (A) further satisfies the following (A7).
- A7 No melting point is observed. It is preferable that the melting point of the component (A) is not observed in the differential scanning calorimetry (DSC).
- the fact that the melting point (Tm) is not observed means that the heat of fusion ( ⁇ H) (unit: J / g) measured by differential scanning calorimetry (DSC) is not substantially measured.
- the fact that the heat of fusion ( ⁇ H) is not substantially measured means that no peak is observed in the differential scanning calorimetry (DSC), or the amount of heat of fusion observed is 1 J / g or less.
- the melting point (Tm) and heat of fusion ( ⁇ H) of the component (A) were measured by differential scanning calorimetry (DSC), cooled to -100 ° C, and then raised to 150 ° C at a heating rate of 10 ° C / min. Sometimes the DSC curve is analyzed and obtained with reference to JIS K7121. If the melting point is not observed, it means that the crystallinity of the component (A) is low as a result, the viscosity of the component (A) does not increase or the component (A) does not become solid, and the dispersibility in water is excellent.
- Examples of the ⁇ -olefin forming the component (A) include propylene, 1-butene, 1-pentene, 3-methyl-1-butene, 1-hexene, 4-methyl-1-pentene, and 3-methyl-1-pentene. , 1-octene, 1-decene, 1-dodecene, 1-tetradecene, 1-hexadecene, 1-octadecene, 1-eikosen and the like, exemplifying linear or branched ⁇ -olefins having 3 to 20 carbon atoms. Can be done.
- ⁇ -olefin a linear or branched ⁇ -olefin having 3 to 10 carbon atoms is preferable, and at least one selected from propylene, 1-butene, 1-hexene and 1-octene is more preferable.
- Propylene is most preferable from the viewpoint of the fluidity of the aqueous dispersion composition using the copolymer.
- the ⁇ -olefin can be used alone or in combination of two or more. Further, the polymerization is promoted by allowing at least one other monomer selected from the polar group-containing monomer, the aromatic vinyl compound, the alicyclic vinyl compound and the cyclic olefin to coexist in the reaction system together with the ⁇ -olefin, and the component (A). ) Can also be obtained.
- the other monomer can be used in an amount of, for example, 20 parts by mass or less, preferably 10 parts by mass or less, based on 100 parts by mass of the total of ethylene and ⁇ -olefin.
- Examples of the polar group-containing monomer include ⁇ , ⁇ -unsaturated carboxylic acids such as acrylic acid, methacrylic acid, fumaric acid, and maleic anhydride, metal salts such as sodium salts thereof, methyl acrylate, ethyl acrylate, and acrylic acid.
- ⁇ , ⁇ -unsaturated carboxylic acid esters such as n-propyl, methyl methacrylate and ethyl methacrylate, vinyl esters such as vinyl acetate and vinyl propionate, unsaturated glycidyls such as glycidyl acrylate and glycidyl methacrylate, etc. Can be exemplified.
- aromatic vinyl compounds examples include styrene, o-methylstyrene, m-methylstyrene, p-methylstyrene, o, p-dimethylstyrene, methoxystyrene, vinylbenzoic acid, methyl vinylbenzoate, vinylbenzylacetate, and hydroxystyrene.
- examples thereof include p-chlorostyrene, divinylbenzene, ⁇ -methylstyrene, and allylbenzene.
- Examples of the alicyclic vinyl compound include vinylcyclohexane.
- Examples of the cyclic olefin include cyclic olefins having 3 to 30 carbon atoms, preferably 3 to 20 carbon atoms, such as cyclopentene, cycloheptene, norbornene, 5-methyl-2-norbornene, and tetracyclododecene.
- the component (A) may be used alone or in combination of two or more.
- two or more kinds of components (A) having different molecular weights and / or different monomer compositions may be used in combination.
- the method for producing the component (A) is not particularly limited, but a method using a vanadium-based catalyst containing a vanadium compound and an organoaluminum compound as described in Japanese Patent Publication No. 2-1163 and Japanese Patent Publication No. 2-7998. Can be mentioned. Further, as a method for producing a copolymer with high polymerization activity, a metallocene compound as described in JP-A-61-221207, JP-A-7-121969, Patent No. 2796376, and Patent No. 4367687.
- a method using a metallocene-based catalyst containing (eg, zirconosen) and an organic aluminum oxy compound (eg, aluminoxane) may be used, and the chlorine content of the obtained copolymer and the amount of 2,1-insertion of propylene are inserted.
- the method using a metallocene-based catalyst is more preferable.
- the vanadium-based catalyst uses more chlorine compounds as the co-catalyst than the metallocene-based catalyst, so there is a possibility that a small amount of chlorine may remain in the obtained component (A).
- the chlorine content in the copolymer is preferably 100 wtppm or less, more preferably 50 wtppm or less, further preferably 20 wtppm or less, and particularly preferably 5 wtppm or less.
- the chlorine content can be quantified by various known methods. The specific measurement method in the present invention is as described in the examples.
- the reduction of the 2,1-insertion amount of propylene in the component (A) makes it possible to further reduce the ethylene chain in the copolymer molecule and suppress the intramolecular crystallinity of ethylene.
- Copolymer has excellent dispersibility in water.
- the amount of 2,1-insertion of propylene is determined by analysis of 13 C-NMR measurement according to the method described in JP-A-7-145212, and is preferably less than 1%, more preferably 0 to 0.5%, and further. It is preferably 0 to 0.1%. It is particularly preferable that no peak is observed in the range of 15.0 to 17.5 ppm.
- the component (A) having a good performance balance in terms of molecular weight control, molecular weight distribution, amorphousness, and B value can be obtained.
- the component (A) is a crosslinked metallocene compound (a) represented by the following general formula [I], an organometallic compound (b-1), an organoaluminum oxy compound (b-2), and the crosslinked metallocene compound (a). It is produced by copolymerizing ethylene and ⁇ -olefin in the presence of an olefin polymerization catalyst containing at least one compound (b) selected from the compound (b-3) that reacts with and forms an ion pair. be able to.
- Y, M, R 1 to R 14 , Q, n and j in the formula [I] will be described below.
- Y, M, R 1 to R 14 , Q, n and j Y is a Group 14 atom, and examples thereof include a carbon atom, a silicon atom, a germanium atom, and a tin atom, preferably a carbon atom or a silicon atom, and more preferably a carbon atom.
- M is a titanium atom, a zirconium atom or a hafnium atom, preferably a zirconium atom.
- R 1 to R 12 are atoms or substituents selected from a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, a silicon-containing group, a nitrogen-containing group, an oxygen-containing group, a halogen atom and a halogen-containing group, and are the same. But it can be different. Further, the adjacent substituents R 1 to R 12 may or may not be bonded to each other to form a ring.
- Hydrocarbon groups having 1 to 20 carbon atoms include alkyl groups having 1 to 20 carbon atoms, cyclic saturated hydrocarbon groups having 3 to 20 carbon atoms, chain unsaturated hydrocarbon groups having 2 to 20 carbon atoms, and 3 carbon atoms. 20 to 20 cyclic unsaturated hydrocarbon groups and the like are exemplified.
- the alkyl group having 1 to 20 carbon atoms includes a linear saturated hydrocarbon group such as methyl group, ethyl group, n-propyl group, n-butyl group, n-pentyl group, n-hexyl group and n-heptyl group.
- N-octyl group, n-nonyl group, n-decanyl group and other branched saturated hydrocarbon groups such as isopropyl group, isobutyl group, s-butyl group, t-butyl group, t-amyl group, neopentyl group, 3 -Methylpentyl group, 1,1-diethylpropyl group, 1,1-dimethylbutyl group, 1-methyl-1-propylbutyl group, 1,1-propylbutyl group, 1,1-dimethyl-2-methylpropyl group , 1-Methyl-1-isopropyl-2-methylpropyl group, cyclopropylmethyl group and the like are exemplified.
- the alkyl group preferably has 1 to 6 carbon atoms.
- Examples of the cyclic saturated hydrocarbon group having 3 to 20 carbon atoms include a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, a norbornenyl group, which are unsubstituted cyclic saturated hydrocarbon groups.
- a 3-methylcyclopentyl group which is a group in which one or more hydrogen atoms contained in an unsubstituted cyclic saturated hydrocarbon group, such as an adamantyl group and a 2-adamantyl group, are replaced with a hydrocarbon group having 1 to 17 carbon atoms.
- Examples thereof include a 3-methylcyclohexyl group, a 4-methylcyclohexyl group, a 4-cyclohexylcyclohexyl group, and a 4-phenylcyclohexyl group.
- the cyclic saturated hydrocarbon group preferably has 5 to 11 carbon atoms.
- the chain unsaturated hydrocarbon group having 2 to 20 carbon atoms includes an alkenyl group, an ethenyl group (vinyl group), a 1-propenyl group, a 2-propenyl group (allyl group), and a 1-methylethenyl group (isopropenyl group). Examples thereof include an ethynyl group, a 1-propynyl group, and a 2-propynyl group (propargyl group), which are alkynyl groups.
- the chain unsaturated hydrocarbon group preferably has 2 to 4 carbon atoms.
- Examples of the cyclic unsaturated hydrocarbon group having 3 to 20 carbon atoms include a cyclopentadienyl group, a norbornyl group, a phenyl group, a naphthyl group, an indenyl group, an azulenyl group, and a phenanthryl group, which are unsubstituted cyclic unsaturated hydrocarbon groups.
- One or more hydrogen atoms contained in a linear saturated hydrocarbon group or a branched saturated hydrocarbon group such as a phenyl group and a 2,4,6-trimethylphenyl group (mesityl group) have 3 to 19 carbon atoms. Examples thereof include a benzyl group, a cumyl group, etc., which are groups substituted with a substituted or substituted cyclic unsaturated hydrocarbon group.
- the cyclic unsaturated hydrocarbon group preferably has 6 to 10 carbon atoms.
- Examples of the silicon-containing group include a trimethylsilyl group, a triethylsilyl group, a t-butyldimethylsilyl group, and a triisopropylsilyl group, which are groups in which at least one carbon atom is replaced with a silicon atom in a hydrocarbon group having 1 to 20 carbon atoms.
- Alkylsilyl group such as, dimethylphenylsilyl group, methyldiphenylsilyl group, arylsilyl group such as t-butyldiphenylsilyl group, pentamethyldisilanyl group, trimethylsilylmethyl group and the like are exemplified.
- the alkylsilyl group preferably has 1 to 10 carbon atoms
- the arylsilyl group preferably has 6 to 18 carbon atoms.
- At least one CH-structural unit is replaced with a nitrogen atom in the amino group, the above-mentioned hydrocarbon group having 1 to 20 carbon atoms or the silicon-containing group, and at least one -CH 2 -Structural unit is replaced with a nitrogen atom bonded to a hydrocarbon group having 1 to 20 carbon atoms, and at least one-CH 3 structural unit is replaced with a nitrogen atom bonded to a hydrocarbon group having 1 to 20 carbon atoms.
- N-morpholinyl group and nitro group are exemplified.
- the nitrogen-containing group a dimethylamino group and an N-morpholinyl group are preferable.
- the oxygen-containing group is a hydroxyl group, a above-mentioned hydrocarbon group having 1 to 20 carbon atoms, a silicon-containing group or a nitrogen-containing group in which at least one -CH 2 -structural unit is replaced with an oxygen atom or a carbonyl group.
- a methoxy group, an ethoxy group, a t-butoxy group, a phenoxy group, a trimethylsiloxy group in which at least one -CH 3 structural unit is replaced with an oxygen atom to which a hydrocarbon group having 1 to 20 carbon atoms is bonded.
- Methoxyethoxy group hydroxymethyl group, methoxymethyl group, ethoxymethyl group, t-butoxymethyl group, 1-hydroxyethyl group, 1-methoxyethyl group, 1-ethoxyethyl group, 2-hydroxyethyl group, 2-methoxyethyl group Group, 2-ethoxyethyl group, n-2-oxabutylene group, n-2-oxapentylene group, n-3-oxapentylene group, aldehyde group, acetyl group, propionyl group, benzoyl group, trimethylsilylcarbonyl group, Examples thereof include a carbamoyl group, a methylaminocarbonyl group, a carboxy group, a methoxycarbonyl group, a carboxymethyl group, an etocarboxymethyl group, a carbamoylmethyl group, a furanyl group and a pyranyl group.
- oxygen-containing group As the
- halogen atom examples include fluorine, chlorine, bromine, and iodine, which are Group 17 elements.
- the halogen-containing group is a trifluoromethyl group in which at least one hydrogen atom is substituted with a halogen atom in the above-mentioned hydrocarbon group having 1 to 20 carbon atoms, a silicon-containing group, a nitrogen-containing group or an oxygen-containing group.
- Tribromomethyl group, pentafluoroethyl group, pentafluorophenyl group and the like are exemplified.
- Adjacent substituents R 1 to R 12 are bonded to each other to form an alkylene group having 1 to 20 carbon atoms, an arylene group having 6 to 20 carbon atoms, and the like, and R 1 to R 12 are bonded to each other.
- a ring may be formed together with the ring carbon.
- alkylene group having 1 to 20 carbon atoms examples include a methylene group, an ethylene group, a dimethylmethylene group (isopropylidene group), an ethylmethylene group, a methylethylene group, and an n-propylene group.
- the alkylene group preferably has 1 to 6 carbon atoms.
- Examples of the arylene group having 6 to 20 carbon atoms include an o-phenylene group, an m-phenylene group, a p-phenylene group, and a 4,4'-biphenylene group.
- the allyrene group preferably has 6 to 12 carbon atoms.
- Q is selected from halogen atoms, hydrocarbon groups with 1 to 20 carbon atoms, anionic ligands and neutral ligands that can be coordinated with lone electron pairs in the same or different combinations. Details of the halogen atom and the hydrocarbon group having 1 to 20 carbon atoms are as described above. When Q is a halogen atom, a chlorine atom is preferable. When Q is a hydrocarbon group having 1 to 20 carbon atoms, the hydrocarbon group preferably has 1 to 7 carbon atoms.
- anion ligand examples include an alkoxy group such as a methoxy group, a t-butoxy group and a phenoxy group, a carboxylate group such as acetate and benzoate, and a sulfonate group such as mesylate and tosylate.
- Examples of the neutral ligand capable of coordinating with a lone electron pair include organic phosphorus compounds such as trimethylphosphine, triethylphosphine, triphenylphosphine and diphenylmethylphosphine, tetrahydrofuran, diethyl ether, dioxane and 1,2-dimethoxyethane.
- organic phosphorus compounds such as trimethylphosphine, triethylphosphine, triphenylphosphine and diphenylmethylphosphine, tetrahydrofuran, diethyl ether, dioxane and 1,2-dimethoxyethane.
- An ether compound and the like can be exemplified.
- R 13 and R 14 are hydrogen atoms, hydrocarbon groups having 1 to 20 carbon atoms (excluding the following aryl groups and substituted aryl groups), aryl groups, substituted aryl groups, silicon-containing groups, nitrogen-containing groups, and oxygen-containing groups. It is an atom or a substituent selected from a group, a halogen atom and a halogen-containing group, and may be the same or different from each other. Further, R 13 and R 14 may or may not be bonded to each other to form a ring.
- hydrocarbon group having 1 to 20 carbon atoms, the silicon-containing group, the nitrogen-containing group, the oxygen-containing group, the halogen atom and the halogen-containing group are as described above.
- the aryl group although it partially overlaps with the above-mentioned example of the cyclic unsaturated hydrocarbon group having 3 to 20 carbon atoms, it is a substituent derived from an aromatic compound, such as a phenyl group, a 1-naphthyl group and a 2-naphthyl group.
- Examples thereof include a group, anthrasenyl group, phenanthrenyl group, tetrasenyl group, chrysenyl group, pyrenyl group, indenyl group, azulenyl group, pyrrolyl group, pyridyl group, furanyl group, thiophenyl group and the like.
- a phenyl group or a 2-naphthyl group is preferable.
- aromatic compound examples include aromatic hydrocarbons and heterocyclic aromatic compounds such as benzene, naphthalene, anthracene, phenanthrene, tetracene, chrysene, pyrene, inden, azulene, pyrrole, pyridine, furan, and thiophene. ..
- the substituted aryl group partially overlaps with the above-mentioned example of the cyclic unsaturated hydrocarbon group having 3 to 20 carbon atoms, but one or more hydrogen atoms of the aryl group are hydrocarbons having 1 to 20 carbon atoms.
- Examples thereof include a group substituted with at least one substituent selected from a group (excluding an aryl group), an aryl group, a silicon-containing group, a nitrogen-containing group, an oxygen-containing group, a halogen atom and a halogen-containing group.
- R 13 and R 14 are bonded to each other to form an alkylene group having 1 to 20 carbon atoms, an arylene group having 6 to 20 carbon atoms, and the like to form a ring together with Y to which R 13 and R 14 are bonded. May be.
- Specific examples of the alkylene group and the arylene group are as described above.
- n is preferably 1.
- crosslinked metallocene compound (a-1) Such a crosslinked metallocene compound is also hereinafter referred to as “crosslinked metallocene compound (a-1)”.
- the crosslinked metallocene compound (a-1) simplifies the manufacturing process, reduces the manufacturing cost, and thus the crosslinked metallocene compound (a-).
- 1) there is an advantage that the production cost of the ethylene / ⁇ -olefin copolymer (A) is reduced.
- crosslinked metallocene compound (a-2) it is preferable that R 1 , R 2 , R 3 and R 4 are all hydrogen atoms.
- Such a crosslinked metallocene compound is also hereinafter referred to as “crosslinked metallocene compound (a-2)”.
- the crosslinked metallocene compound (a-2) has a manufacturing step as compared with a compound in which any one or more of R 1 , R 2 , R 3 and R 4 in the above formula [I] is substituted with a substituent other than a hydrogen atom.
- the production cost is reduced, and by using this crosslinked metallocene compound (a-2), the production cost of the ethylene / ⁇ -olefin copolymer (A) can be reduced.
- the randomness of the ethylene / ⁇ -olefin copolymer (A) is lowered by performing high temperature polymerization, but the olefin polymerization catalyst containing the crosslinked metallocene compound (a-2) is used.
- ethylene and ⁇ -olefin are copolymerized in the presence of the polymer, there is an advantage that the obtained ethylene / ⁇ -olefin copolymer (A) has high randomness even in high temperature polymerization.
- crosslinked metallocene compound (a-2) it is preferable that either R 13 or R 14 is an aryl group or a substituted aryl group.
- Such a crosslinked metallocene compound is also hereinafter referred to as “crosslinked metallocene compound (a-3)”.
- the crosslinked metallocene compound (a-3) has two of (A) in the produced ethylene / ⁇ -olefin copolymer, as compared with the case where R 13 and R 14 are both substituents other than the aryl group and the substituted aryl group. The advantage of a small amount of double bonds can be obtained.
- crosslinked metallocene compound (a-3) it is more preferable that one of R 13 and R 14 is an aryl group or a substituted aryl group, and the other is an alkyl group having 1 to 20 carbon atoms, and R 13 and R are more preferable. It is particularly preferred that any one of 14 is an aryl group or a substituted aryl group and the other is a methyl group.
- Such a crosslinked metallocene compound is also hereinafter referred to as “crosslinked metallocene compound (a-4)”.
- the crosslinked metallocene compound (a-4) has a double bond amount in the produced ethylene / ⁇ -olefin copolymer (A) as compared with the case where R 13 and R 14 are both aryl groups or substituted aryl groups. It has an excellent balance with the polymerization activity, and by using this crosslinked metallocene compound, it is possible to obtain an advantage that the production cost of the ethylene / ⁇ -olefin copolymer (A) is reduced.
- the ethylene / ⁇ -olefin copolymer (A) is produced using the crosslinked metallocene compound (a-4), it is introduced into the polymerization reactor as compared with the case where the crosslinked metallocene compound (a-3) is used.
- the advantages are that the amount of hydrogen is reduced, the polymerization activity is improved, and the production cost of the ethylene / ⁇ -olefin copolymer (A) is reduced.
- R 6 and R 11 are alkyl groups having 1 to 20 carbon atoms, or alkylene groups having 1 to 20 carbon atoms formed by bonding with adjacent substituents. Is preferable.
- Such a crosslinked metallocene compound is also hereinafter also referred to as a “crosslinked metallocene compound (a-5)”.
- the crosslinked metallocene compound (a-5) simplifies the manufacturing process as compared with a compound in which R 6 and R 11 are substituted with a substituent other than an alkyl group having 1 to 20 carbon atoms and an alkylene group having 1 to 20 carbon atoms. Therefore, the production cost is reduced, and by using this crosslinked metallocene compound (a-5), there is an advantage that the production cost of the ethylene / ⁇ -olefin copolymer (A) is reduced.
- M is a zirconium atom.
- the polymerization activity is higher than in the case where M is a titanium atom or a hafnium atom, and ethylene.
- Examples of these compounds include a compound in which the zirconium atom is replaced with a hafnium atom or a compound in which the chloro ligand is replaced with a methyl group, but the crosslinked metallocene compound (a) is not limited to these examples.
- the ⁇ 5-tetramethyloctahydrodibenzofluorenyl, which is a constituent part of the exemplified crosslinked metallocene compound (a), is 4,4,7,7-tetramethyl- (5a, 5b, 11a, 12, 12a- ⁇ 5).
- ⁇ 5-octamethyloctahydrodibenzofluorenyl is 1,1,4,4,7,7 , 10,10-Octamethyl- (5a, 5b, 11a, 12, 12a- ⁇ 5) -1,2,3,4,7,8,9,10-octahydrodibenzo [b, H] fluorenyl groups, respectively. ..
- the polymerization catalyst preferably used in the present invention reacts with the crosslinked metallocene compound (a), the organometallic compound (b-1), the organoaluminum oxy compound (b-2), and the crosslinked metallocene compound (a) to form ions. It contains at least one compound (b) selected from the pairing compound (b-3).
- organometallic compound (b-1) specifically, the following organometallic compounds of Groups 1, 2 and 12 and 13 of the Periodic Table are used.
- B-1a General formula RamAl (OR b ) nHpXq
- Examples of such compounds include tri-n-alkylaluminum such as trimethylaluminum, triethylaluminum, tri-n-butylaluminum, tri-n-hexylaluminum, and tri-n-octylaluminum, triisopropylaluminum, triisobutylaluminum, and tri.
- tri-n-alkylaluminum such as trimethylaluminum, triethylaluminum, tri-n-butylaluminum, tri-n-hexylaluminum, and tri-n-octylaluminum, triisopropylaluminum, triisobutylaluminum, and tri.
- Tri-branched alkylaluminum such as sec-butylaluminum, tri-t-butylaluminum, tri-2-methylbutylaluminum, tri-3-methylhexylaluminum, tri-2-ethylhexylaluminum, tricyclohexylaluminum, tricyclooctylaluminum
- Tricycloalkylaluminum such as, triphenylaluminum, triarylaluminum such as tri (4-methylphenyl) aluminum, diisopropylaluminum hydride, dialkylaluminum hydride such as diisobutylaluminum hydride, general formula (i-C 4H 9 ) xAly ( C 5 H 10 ) Alkenyl aluminum such as isoprenyl aluminum represented by z (where x, y, z are positive numbers and z ⁇ 2x in the formula), isobutylaluminum methoxydo, and isobutylalum
- Alkylaluminum alkoxides such as, dimethylaluminum methoxydo, diethylaluminum ethoxide, dialkylaluminum alkoxides such as dibutylaluminum butoxide, alkylaluminum sesquialkoxides such as ethylaluminum sesquiethoxydo, butylaluminum sesquibutoxide , general formula Ra 2.5 Al (OR).
- Alkylaluminum aryloxy such as partially alkoxylated alkylaluminum, diethylaluminum phenoxide, diethylaluminum (2,6-di-t-butyl-4-methylphenoxide) having an average composition represented by 0.5 etc.
- Dialkylaluminum halides such as do, dimethylaluminum chloride, diethylaluminum chloride, dibutylaluminum chloride, diethylaluminum bromide, diisobutylaluminum chloride, alkylaluminum sesquihalides such as ethylaluminum sesquichloride, butylaluminum sesquichloride, ethylaluminum sesquibromid, ethylaluminum Partial such as alkylaluminum dihalide such as dichloride Dialkylaluminum hydrides such as alkylaluminum, diethylaluminum hydride, dibutylaluminum hydride, ethylaluminum dihydrides, alkylaluminum dihydrides such as propylaluminum dihydrides, and other partially hydrogenated alkylaluminum, ethyl. Examples thereof include partially alkoxylated and hydrogenated alkylaluminum such
- a compound similar to the compound represented by the above general formula RamAl (OR b ) nHpXq can also be used.
- an organoaluminum compound in which two or more aluminum compounds are bonded via a nitrogen atom can be mentioned.
- Specific examples of such a compound include (C 2 H 5 ) 2 AlN (C 2 H 5 ) Al (C 2 H 5 ) 2 .
- R a R b M 3 (In the formula, R a and R b may be the same or different from each other, and show hydrocarbon groups having 1 to 15 carbon atoms, preferably 1 to 4 carbon atoms. , M 3 is Mg, Zn or Cd), a dialkyl compound of a Group 2 or Group 12 metal of the periodic table.
- organoaluminum oxy compound (b-2) conventionally known aluminoxane can be used as it is. Specifically, a compound represented by the following general formula [II] and a compound represented by the following general formula [III] can be mentioned.
- R represents a hydrocarbon group having 1 to 10 carbon atoms, and n represents an integer of 2 or more.
- methylaluminoxane in which R is a methyl group and n of 3 or more, preferably 10 or more is used. It does not matter if some organoaluminum compounds are mixed in these aluminoxanes.
- a benzene-insoluble organoaluminum oxy compound as exemplified in JP-A-2-78687 can also be applied.
- organoaluminum oxy compounds described in JP-A-2-167305, and aluminoxane having two or more types of alkyl groups described in JP-A-2-24701 and JP-A-3-103407 are also available. It can be preferably used.
- the "benzene-insoluble organic aluminum oxy compound” that may be used in the present invention means that the Al component dissolved in benzene at 60 ° C. is usually 10% or less, preferably 5% or less, particularly preferably 5% or less in terms of Al atom. It is a compound having 2% or less and being insoluble or sparingly soluble in benzene.
- organoaluminum oxy compound (b-2) modified methylaluminoxane as represented by the following general formula [IV] can also be mentioned.
- Me represents a methyl group
- R represents a hydrocarbon group having 2 to 10 carbon atoms
- m and n each independently represent an integer of 2 or more.
- This modified methylaluminoxane is prepared using trimethylaluminum and alkylaluminum other than trimethylaluminum. Such compounds are commonly referred to as MMAO. Such MMAOs can be prepared by the methods listed in US Pat. No. 4,960,878 and US Pat. No. 5,041,584. Further, from Tosoh Finechem Co., Ltd. and the like, those prepared by using trimethylaluminum and triisobutylaluminum and having R as an isobutyl group are commercially available under the names of MMAO and TMAO.
- Such MMAO is an aluminoxane having improved solubility in various solvents and storage stability, and specifically, among the compounds represented by the above formula [II] and the compounds represented by the above formula [III]. Unlike compounds that are insoluble or sparingly soluble in benzene, they are soluble in aliphatic or alicyclic hydrocarbons.
- organoaluminum oxy compound (b-2) an organoaluminum oxy compound containing boron represented by the following general formula [V] can also be mentioned.
- R c represents a hydrocarbon group having 1 to 10 carbon atoms.
- R d may be the same or different from each other and represents a hydrogen atom, a halogen atom or a hydrocarbon group having 1 to 10 carbon atoms.
- ionic ionic compound As the compound (b-3) that reacts with the crosslinked metallocene compound (a) to form an ion pair (hereinafter, may be abbreviated as "ionic ionic compound” or simply “ionic compound"), JP. 1-501950, 1-502306, 3-179005, 3-179006, 3-207703, 3-207703, 3-207704, US Pat. No. 5,321,106. Examples thereof include Lewis acid, an ionic compound, a borane compound and a carborane compound described in Japanese publications. Further, heteropoly compounds and isopoly compounds can also be mentioned.
- the ionized ionic compound preferably used in the present invention is a boron compound represented by the following general formula [VI].
- Re + examples include H + , carbenium cation, oxonium cation, ammonium cation, phosphonium cation, cycloheptiltyrienyl cation, ferrosenium cation having a transition metal, and the like.
- R f to R i may be the same or different from each other, and are substituents selected from hydrocarbon groups having 1 to 20 carbon atoms, silicon-containing groups, nitrogen-containing groups, oxygen-containing groups, halogen atoms, and halogen-containing groups. Yes, preferably a substituted aryl group.
- carbocation cation examples include trisubstituted carbocation cations such as triphenylcarbenium cation, tris (4-methylphenyl) carbocation cation, and tris (3,5-dimethylphenyl) carbenium cation. ..
- the ammonium cation is a trialkyl-substituted ammonium such as a trimethylammonium cation, a triethylammonary cation, a tri (n-propyl) ammonium cation, a triisopropylammonium cation, a tri (n-butyl) ammonium cation, or a triisobutylammonium cation.
- a trialkyl-substituted ammonium such as a trimethylammonium cation, a triethylammonary cation, a tri (n-propyl) ammonium cation, a triisopropylammonium cation, a tri (n-butyl) ammonium cation, or a triisobutylammonium cation.
- N, N-dialkylanilinium cations such as cations, N, N-dimethylanilinium cations, N, N-diethylanilinium cations, N, N-2,4,6-pentamethylanilinium cations, diisopropylammonium cations, Examples thereof include dialkylammonium cations such as dicyclohexylammonium cations.
- phosphonium cation examples include triarylphosphonium cations such as triphenylphosphonium cation, tris (4-methylphenyl) phosphonium cation, and tris (3,5-dimethylphenyl) phosphonium cation.
- Re + is preferably a carbonium cation, an ammonium cation, or the like, and particularly preferably a triphenylcarbenium cation, an N, N-dimethylanilinium cation, or an N, N-diethylanilinium cation.
- ionized ionic compounds as compounds containing a carbenium cation, triphenylcarbenium tetraphenylborate, triphenylcarbenium tetrakis (pentafluorophenyl) borate, triphenylcarbenium tetrakis ⁇ 3, 5-Di- (trifluoromethyl) phenyl ⁇ borate, tris (4-methylphenyl) carbenium tetrakis (pentafluorophenyl) borate, tris (3,5-dimethylphenyl) carbenium tetrakis (pentafluorophenyl) borate, etc. It can be exemplified.
- ionized ionic compounds as compounds containing a trialkyl-substituted ammonium cation, triethylammonium tetraphenylborate, tripropylammonium tetraphenylborate, tri (n-butyl) ammonium tetraphenylborate, trimethylammonium Tetrax (4-methylphenyl) borate, trimethylammonium tetrakis (2-methylphenyl) borate, tri (n-butyl) ammonium tetrakis (pentafluorophenyl) borate, triethylammonium tetrakis (pentafluorophenyl) borate, tripropylammonium tetrakis (tripropylammonium tetrakis) Pentafluorophenyl) borate, tripropylammonium tetrakis (2,4-di
- N, N-dialkylanilinium cations N, N-dimethylanilinium tetraphenylborate, N, N-dimethylanilinium tetrakis (pentafluorophenyl) ) Borate, N, N-dimethylanilinium tetrakis ⁇ 3,5-di (trifluoromethyl) phenyl ⁇ borate, N, N-diethylanilinium tetraphenylborate, N, N-diethylanilinium tetrakis (pentafluorophenyl) Borate, N, N-diethylanilinium tetrakis ⁇ 3,5-di (trifluoromethyl) phenyl ⁇ borate, N, N-2,4,6-pentamethylanilinium tetraphenylborate, N, N-2,4 , 6-Penta
- examples of the compound containing a dialkylammonium cation include di-n-propylammonium tetrakis (pentafluorophenyl) borate and dicyclohexylammonium tetraphenylborate.
- ionic compounds exemplified by JP-A-2004-51676 can be used without limitation.
- the above-mentioned ionic compound (b-3) may be used alone or in combination of two or more.
- organometallic compound (b-1) trimethylaluminum, triethylaluminum and triisobutylaluminum, which are easily available because they are commercially available products, are preferable. Of these, triisobutylaluminum, which is easy to handle, is particularly preferable.
- organoaluminum oxy compound (b-2) methylaluminoxane, which is easily available because it is a commercially available product, and MMAO prepared using trimethylaluminum and triisobutylaluminum are preferable. Of these, MMAO having improved solubility in various solvents and storage stability is particularly preferable.
- triphenylcarbenium tetrakis (pentafluorophenyl) borate and N, N-dimethylanilyi are easily available as commercial products and contribute greatly to the improvement of polymerization activity. Ionic tetrakis (pentafluorophenyl) borate is preferred.
- the carrier (c) may be used as a constituent component of the olefin polymerization catalyst, if necessary.
- the carrier (c) that may be used in the present invention is an inorganic or organic compound and is a solid in the form of granules or fine particles.
- an inorganic compound a porous oxide, an inorganic chloride, clay, a clay mineral or an ion-exchange layered compound is preferable.
- porous oxide examples include SiO 2 , Al 2 O 3 , MgO, ZrO, TiO 2 , B 2 O 3 , CaO, ZnO, BaO, ThO 2 , etc., or a composite or mixture containing these, for example.
- Uses natural or synthetic zeolite, SiO 2 -MgO, SiO 2 -Al 2 O 3 , SiO 2 -TiO 2 , SiO 2 -V 2 O 5 , SiO 2 -Cr 2 O 3 , SiO 2 -TiO 2 -MgO, etc. can do. Of these, those containing SiO 2 and / or Al 2 O 3 as main components are preferable.
- the carrier preferably used in the present invention has a particle size of 0.5 to 300 ⁇ m, preferably 1.0 to 200 ⁇ m, and has a specific surface area. Is in the range of 50 to 1000 m 2 / g, preferably 100 to 700 m 2 / g, and the pore volume is in the range of 0.3 to 3.0 cm 3 / g.
- Such a carrier is used after firing at 100 to 1000 ° C., preferably 150 to 700 ° C., if necessary.
- the inorganic chloride MgCl 2 , MgBr 2 , MnCl 2 , MnBr 2 and the like are used.
- the inorganic chloride may be used as it is, or may be used after being pulverized by a ball mill or a vibration mill. Further, it may be used that the inorganic chloride is dissolved in a solvent such as alcohol and then precipitated in the form of fine particles with a precipitant.
- Clay is usually composed mainly of clay minerals.
- the ion-exchangeable layered compound is a compound having a crystal structure in which the constituent planes are stacked in parallel with each other by an ionic bond or the like with a weak bonding force, and the contained ions can be exchanged.
- Most clay minerals are ion-exchange layered compounds.
- these clays, clay minerals, and ion-exchange layered compounds not only naturally produced ones but also artificial synthetic compounds can be used.
- clay mineral or ion-exchangeable layered compound clay, clay mineral, ionic crystalline compound having a layered crystal structure such as hexagonal fine packing type, antimony type, CdCl 2 type and CdI 2 type can be used.
- Such clays and clay minerals include kaolin, bentonite, knot clay, gailome clay, alophen, hisingel stone, pyrophyllite, ummo group, montmorillonite group, vermiculite, ryokudei stone group, parigolskite, kaolinite, nacrite, and dicite.
- ion-exchangeable layered compound examples include ⁇ -Zr (HAsO 4 ) 2 ⁇ H 2 O, ⁇ -Zr (HPO 4 ) 2 , ⁇ -Zr (KPO 4 ) 2.3 H 2 O, ⁇ -Ti (HPO 4 ) 2 , ⁇ -Ti (HAsO 4 ) 2 ⁇ H 2 O, ⁇ -Sn (HPO 4 ) 2 ⁇ H 2 O, ⁇ -Zr (HPO 4 ) 2 , ⁇ -Ti (HPO 4 ) ) 2 , ⁇ -Ti (NH 4 PO 4 ) 2 ⁇ H 2 O and other crystalline acidic salts of polyvalent metals.
- any of a surface treatment for removing impurities adhering to the surface, a treatment for affecting the crystal structure of clay, and the like can be used.
- Specific examples of the chemical treatment include acid treatment, alkali treatment, salt treatment, and organic substance treatment.
- the ion-exchangeable layered compound may be a layered compound in a state in which the layers are expanded by utilizing the ion exchange property and exchanging the exchangeable ions between the layers with another large bulky ion.
- Such bulky ions play a supporting role in supporting the layered structure, and are usually called pillars.
- guest compound introducing another substance (guest compound) between the layers of the layered compound in this way is called intercalation.
- Guest compounds include cationic inorganic compounds such as TiCl 4 , ZrCl 4 , and metal alkoxides such as Ti (OR) 4 , Zr (OR) 4 , PO (OR) 3 , and B (OR) 3 (R is a hydrocarbon.
- clays or clay minerals preferred are montmorillonite, vermiculite, pectolite, teniolite and synthetic mica.
- organic compound as the carrier (c) include granular or fine particle solids having a particle size in the range of 0.5 to 300 ⁇ m.
- a (co) polymer or vinylcyclohexane or styrene produced mainly of an ⁇ -olefin having 2 to 14 carbon atoms such as ethylene, propylene, 1-butene and 4-methyl-1-pentene.
- (co) polymers produced with the above as a main component and variants thereof are examples of (co) polymers produced with the above as a main component and variants thereof.
- High-temperature polymerization is possible by a polymerization method using an olefin polymerization catalyst capable of producing an ethylene / ⁇ -olefin copolymer (A) having high randomness. That is, by using the olefin polymerization catalyst, it is possible to suppress a decrease in the randomness of the ethylene / ⁇ -olefin copolymer (A) produced during high-temperature polymerization.
- the viscosity of the polymerization solution containing the produced ethylene / ⁇ -olefin copolymer (A) decreases at high temperatures, so the ethylene / ⁇ -olefin copolymer (A) in the polymer is compared to that at low temperature polymerization. ) Can be increased, and as a result, the productivity per polymerizer is improved.
- the copolymerization of ethylene and ⁇ -olefin in the present invention can be carried out by any of a liquid phase polymerization method such as solution polymerization and suspension polymerization (slurry polymerization) or a gas phase polymerization method. Solution polymerization is particularly preferable from the viewpoint that the above can be enjoyed to the maximum extent.
- each component of the olefin polymerization catalyst are arbitrarily selected. Further, at least two or more of each component in the catalyst may be contacted in advance.
- the amount of the crosslinked metallocene compound (a) (hereinafter, also referred to as “component (a)”) is usually 10 -9 to 10 -1 mol, preferably 10 -8 to 10-2 mol, per liter of the reaction volume. Used in.
- the organometallic compound (b-1) (hereinafter, also referred to as “component (b-1)”) is a molar ratio of the component (b-1) to the transition metal atom (M) in the component (a) [(b). -1) / M] is usually used in an amount of 0.01 to 50,000, preferably 0.05 to 10,000.
- the organic aluminum oxy compound (b-2) (hereinafter, also referred to as “component (b-2)”) is composed of an aluminum atom in the component (b-2) and a transition metal atom (M) in the component (a). It is used in an amount such that the molar ratio [(b-2) / M] is usually 10 to 5,000, preferably 20 to 2,000.
- the ionic compound (b-3) (hereinafter, also referred to as “component (b-3)”) is a molar ratio of the component (b-3) to the transition metal atom (M) in the component (a) [(b). -3) / M] is usually used in an amount of 1 to 10,000, preferably 1 to 5,000.
- the polymerization temperature is usually ⁇ 50 ° C. to 300 ° C., preferably 30 ° C. to 250 ° C., more preferably 100 ° C. to 250 ° C., and even more preferably 130 ° C. to 200 ° C. In the polymerization temperature range in the above range, as the temperature increases, the viscosity of the solution during polymerization decreases, and the heat of polymerization becomes easier to remove.
- the polymerization pressure is usually normal pressure to 10 MPa gauge pressure (MPa-G), preferably normal pressure to 8 MPa-G.
- the polymerization reaction can be carried out by any of a batch type, a semi-continuous type and a continuous type. Further, it is also possible to carry out the polymerization continuously in two or more polymerizers having different reaction conditions.
- the molecular weight of the obtained copolymer can be adjusted by changing the hydrogen concentration in the polymerization system and the polymerization temperature. Furthermore, it can be adjusted according to the amount of compound (b) used. When hydrogen is added, the amount of hydrogen is appropriately about 0.001 to 5,000 NL per 1 kg of the copolymer to be produced.
- the polymerization solvent used in the liquid phase polymerization method is usually an inert hydrocarbon solvent, preferably a saturated hydrocarbon having a boiling point of 50 ° C. to 200 ° C. under normal pressure.
- Specific examples of the polymerization solvent include aliphatic hydrocarbons such as propane, butane, pentane, hexane, heptane, octane, decane, dodecane, and kerosene, and alicyclic hydrocarbons such as cyclopentane, cyclohexane, and methylcyclopentane. Hexane, heptane, octane, decane, and cyclohexane are particularly preferred.
- the ⁇ -olefin itself to be polymerized can also be used as the polymerization solvent.
- Aromatic hydrocarbons such as benzene, toluene and xylene and halogenated hydrocarbons such as ethylene chloride, chlorobenzene and dichloromethane can also be used as polymerization solvents, but from the viewpoint of reducing the burden on the environment and for human health. From the perspective of minimizing the effects of these, their use is undesirable.
- the kinematic viscosity of the ethylene / ⁇ -olefin copolymer (A) at 100 ° C. depends on the molecular weight of the copolymer. That is, if the molecular weight is high, the viscosity is high, and if the molecular weight is low, the viscosity is low. Therefore, the kinematic viscosity at 100 ° C. is adjusted by the above-mentioned molecular weight adjustment. Further, the molecular weight distribution (Mw / Mn) of the obtained copolymer can be adjusted by removing the low molecular weight component of the copolymer obtained by a conventionally known method such as vacuum distillation.
- the obtained copolymer may be hydrogenated (hereinafter, also referred to as “hydrogenation”) by a conventionally known method. If the amount of unsaturated bonds of the obtained copolymer is reduced by hydrogenation, oxidative stability and heat resistance are improved.
- the ethylene / ⁇ -olefin copolymer acid-modified product (B) forming the aqueous dispersion of the present invention is an acid-modified product of the ethylene / ⁇ -olefin copolymer (A).
- the acid-modified product (B) is also referred to as "component (B)” or "acid-modified ethylene / ⁇ -olefin copolymer (B)".
- the acid-modified product (B) according to the present invention is a modified product obtained by modifying the ethylene / ⁇ -olefin copolymer (A) with a compound selected from an unsaturated carboxylic acid and a derivative thereof, and is preferably the compound. It is an ethylene / ⁇ -olefin copolymer modified with.
- Examples of the unsaturated carboxylic acid and its derivative include an unsaturated carboxylic acid having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and a derivative of the unsaturated carboxylic acid.
- Derivatives of unsaturated carboxylic acids include, for example, acid anhydrides, esters, amides and imides of unsaturated carboxylic acids.
- the component (A) which is the starting material of the component (B), has a small amount of unsaturated bonds as described above, the component (B) has a structure in which the graft component is randomly grafted to the main clavicle of the component (A). It is presumed to be.
- Examples of the unsaturated carboxylic acid include monobasic acids such as acrylic acid and methacrylic acid; and dibasic acids such as maleic acid, fumaric acid, itaconic acid, citraconic acid and 5-norbornen-2,3-dicarboxylic acid. Be done.
- Examples of the acid anhydride of the unsaturated carboxylic acid include acid anhydrides of dibasic acids such as maleic acid, itaconic acid, citraconic acid and 5-norbornene-2,3-dicarboxylic acid.
- ester of the unsaturated carboxylic acid examples include methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, glycidyl acrylate, monoethyl maleic acid ester, diethyl maleic acid ester, monomethyl fumarate ester, and fumaric acid.
- esters and half esters such as dimethyl ester, monomethyl ester of itaconic acid and diethyl ester of itaconic acid.
- Examples of the unsaturated carboxylic acid amide include acrylamide, methacrylic acid, maleic acid monoamide, maleic acid diamide, maleic acid-N-monoethylamide, maleic acid-N, N-diethylamide, and maleic acid-N-monobutyl.
- Examples thereof include amides, maleic acid-N, N-dibutylamides, fumaric acid monoamides, fumaric acid diamides, fumaric acid-N-monobutylamides and fumaric acid-N, N-dibutylamides.
- the unsaturated carboxylic acid imide examples include maleimide, N-butylmaleimide, and N-phenylmaleimide.
- at least one selected from maleic acid and maleic anhydride is characterized by having high polarity as one monomer and being difficult to form by-products such as homopolymers in the modification reaction using peroxide. Seeds are preferred.
- the graft component may be used alone or in combination of two or more.
- the grafting reaction is carried out, for example, by the method described in JP-A-61-126120, usually in the presence of a radical initiator such as dit-butyl peroxide, etc., in the presence of an ethylene / ⁇ -olefin copolymer (A).
- the graft component is added to the mixture.
- the reaction temperature is usually 150 to 200 ° C., preferably 160 to 180 ° C.
- the reaction time is usually 1 to 50 hours, preferably 1 to 10 hours.
- the graft component is preferably used in an amount such that the acid value of the obtained component (B) falls within the following range.
- the ethylene / ⁇ -olefin copolymer acid-modified product (B) is an acid-modified product of the ethylene / ⁇ -olefin copolymer (A) satisfying the above (A1) to (A6), and is as follows. Satisfy (B1) to (B5).
- the acid value is in the range of 1 to 300 mgKOH / g.
- the acid value is used as an index of the graft amount of the graft component.
- the acid value of component (B) is preferably in the range of 1 to 300 mgKOH / g, more preferably 5 to 200 mgKOH / g, and even more preferably 10 to 150 mgKOH / g. If the acid value is lower than the above range, the polarity of the copolymer may be lowered and the stability of the aqueous dispersion may be lowered. If the acid value exceeds the above range, hydrogen bonds between the graft components may occur, the viscosity of the copolymer may increase, and as a result, the dispersibility in water may decrease.
- the acid value of the component (B) can be adjusted by the amount of graft of the graft component with respect to the component (A). For example, in order to increase the acid value of the component (B), it is preferable to increase the amount of graft.
- the acid value of the component (B) indicates the number of milligrams of potassium hydroxide required to neutralize the acid contained in 1 g of the polymer, and can be measured by a method conforming to JIS K0070. Specifically, it is as described in the examples.
- the apparent viscosity at 150 ° C. is in the range of 1 to 1,000 cPs.
- the apparent viscosity (Brookfield viscosity) of the component (B) at 150 ° C. is a value measured by the method described in JIS K7117-1.
- the apparent viscosity of component (B) at 150 ° C. is preferably in the range of 1 to 1,000 cPs, more preferably in the range of 5 to 800 cPs, and particularly preferably in the range of 5 to 90 cPs.
- the apparent viscosity is in the above range, it is excellent in terms of balance between low volatility, handleability, and dispersibility in water.
- the weight average molecular weight measured by gel permeation chromatography (GPC) and obtained by polystyrene conversion is in the range of 1,000 to 50,000.
- the weight average molecular weight (Mw) of the component (B) is a value obtained by gel permeation chromatography (GPC) according to a method described later and converted to standard polystyrene.
- the weight average molecular weight (Mw) of the component (B) is preferably in the range of 1,000 to 50,000, more preferably 1,000 to 30,000, still more preferably 1,500 to 30,000, and particularly preferably. It is in the range of 2,000 to 7,000, most preferably 5,000 to 6,000.
- Mw is excessively lower than the above range, it may be easily ignited due to a large amount of volatile components, resulting in deterioration of storage stability or an increase in evaporation loss in the aqueous dispersion. If Mw exceeds the above range excessively, the viscosity of the copolymer increases, and it may be difficult to disperse the copolymer uniformly in water.
- the molecular weight distribution (Mw / Mn) is 2.5 or less in the molecular weight obtained by polystyrene conversion as measured by gel permeation chromatography (GPC).
- the molecular weight distribution of the component (B) was measured by gel permeation chromatography (GPC) according to the method described later, and the ratio (Mw) of the weight average molecular weight (Mw) and the number average molecular weight (Mn) obtained by standard polystyrene conversion was obtained. / Mn) is calculated.
- the Mw / Mn of the component (B) is preferably 2.5 or less, more preferably 2.3 or less, still more preferably 2.0 or less. If the molecular weight distribution exceeds the above range excessively, it means that the copolymer contains a large amount of low molecular weight components and high molecular weight components.
- the copolymer When the copolymer contains a large amount of low molecular weight components, it may easily ignite due to a large amount of easily volatile components, resulting in deterioration of storage stability or an increase in evaporation loss in the aqueous dispersion. When the copolymer contains a large amount of high molecular weight components, the viscosity of the copolymer increases, and it may be difficult to disperse the copolymer uniformly in water.
- the weight fraction of unreacted molecules measured by high performance liquid chromatography (HPLC) is 59% or less.
- HPLC high performance liquid chromatography
- the component (B) according to the present invention preferably further satisfies the following (B6).
- B6 Among the unreacted molecules contained in the acid-modified product (B), the molecular weight is larger than the weight average molecular weight of the acid-modified product (B) obtained by gel permeation chromatography (GPC) and obtained by polystyrene conversion. The weight fraction of unreacted molecules with high molecular weight is 20% or less.
- the unreacted molecule When the weight fraction of the unreacted molecule having a molecular weight higher than the weight average molecular weight of the acid-modified product (B) is less than the above range, the unreacted molecule has a high molecular weight, which is inferior in dispersibility in water. This is preferable because the proportion of molecules is small and the component (B) is easily uniformly dispersed in water.
- the component (B) according to the present invention preferably further satisfies the following (B7).
- B7) No melting point is observed. It is preferable that the melting point of the component (B) is not observed in the differential scanning calorimetry (DSC).
- the fact that the melting point (Tm) is not observed means that the heat of fusion ( ⁇ H) (unit: J / g) measured by differential scanning calorimetry (DSC) is not substantially measured.
- the fact that the heat of fusion ( ⁇ H) is not substantially measured means that no peak is observed in the differential scanning calorimetry (DSC), or the amount of heat of fusion observed is 1 J / g or less.
- the melting point (Tm) and heat of fusion ( ⁇ H) of the component (B) were measured by differential scanning calorimetry (DSC), cooled to -100 ° C, and then raised to 150 ° C at a heating rate of 10 ° C / min. Sometimes the DSC curve is analyzed and obtained with reference to JIS K7121. If the melting point is not observed, it means that the crystallinity of the component (B) is low as a result, the viscosity of the component (B) does not increase or the component (B) does not become solid, and the dispersibility in water is excellent.
- the component (B) may be used alone or in combination of two or more.
- ⁇ Aqueous dispersion composition> The aqueous dispersion composition of the present invention contains the above ethylene / ⁇ -olefin copolymer acid-modified product (B) in the range of 0.01 to 50% by mass, preferably 0.05 to 30% by mass.
- the aqueous dispersion composition of the present invention preferably has a viscosity of 15 mPa ⁇ s or more, more preferably 20 to 200 mPa ⁇ s, still more preferably 30 to 200 mPa ⁇ s, and particularly preferably. It is in the range of 60 to 200 mPa ⁇ s, most preferably in the range of 100 to 200 mPa ⁇ s.
- the viscosity of the aqueous dispersion composition is within such a range, it is excellent in spreading on the surface of the base material when the aqueous dispersion composition is applied / coated on the base material, and dripping is less likely to occur, so that the base material is coated. It is preferable because it has excellent properties.
- the average particle size of the dispersed particles of the ethylene / ⁇ -olefin copolymer acid-modified product (B) forming the dispersion composition is preferably 100 nm or less, more preferably 10 to 10 to It is in the range of 95 nm, more preferably in the range of 10-60 nm, particularly preferably in the range of 20-40 nm, and most preferably in the range of 20-30 nm. If the average particle size of the dispersed particles is larger than the above range, the particles are easily separated, which is not preferable from the viewpoint of stability.
- the average particle size of the dispersed particles is smaller than the above range, the interaction between the particles becomes strong and the viscosity of the aqueous dispersion composition tends to increase, which is not preferable because it is difficult to spread on the surface of the base material.
- the average particle size of the dispersed particles is in the above range, the stability of the aqueous dispersion composition is excellent and the coating property on the substrate is also excellent, which is preferable.
- the average particle size in the present invention means the diameter of particles when the cumulative volume is 50% when the total volume is 100%, and a dynamic light scattering type particle size distribution measuring device or a nanotrack particle size distribution measuring device is used. Can be measured.
- the average particle size of the particles in the dispersion was measured using Nanotrack WAVE2-EX150 (manufactured by MicrotracBEL).
- the excellent stability of the aqueous dispersion composition in the present invention means that the dispersed state of the aqueous dispersion composition when stored in a room temperature environment is good.
- the stability of the aqueous dispersion composition is as follows: The aqueous dispersion composition is placed in a transparent cylindrical glass container having a length of 120 mm and a diameter of 40 mm, and allowed to stand at 23 ° C. for 15 hours, and then visually checked for separation. Evaluated.
- the aqueous dispersion composition of the present invention preferably has a water content of 50 to 99.99% by mass, preferably 60 to 99.95% by mass.
- the aqueous dispersion composition of the present invention contains a surfactant, a corrosion inhibitor, an antioxidant, an animal or vegetable oil or a fatty acid ester thereof, and a synthetic lubricating oil.
- Wax, inorganic powder, and various other additives may be contained. The additive may be used alone or in combination of two or more.
- alkylene oxide adduct of nonylphenol alkylene oxide adduct of linear higher alcohol having 12 to 18 carbon atoms
- alkylene oxide adduct of higher amine polyoxyethylene adduct of fatty acid such as castor oil, alkylene oxide of fatty acid amide.
- examples include adducts, alkyl sulfates, tamol types, tetraalkylammonium salts, alkylbetaines and the like.
- the amount added thereof is preferably 0.1 to 20% by mass, more preferably 0.5 to 10% by mass in the aqueous dispersion composition.
- the corrosion inhibitor examples include sodium nitrite, sodium benzoate, triethanolamine salt and the like.
- the amount added is preferably 0.01 to 10% by mass, more preferably 0.1 to 5% by mass in the aqueous dispersion composition.
- antioxidants examples include phenolic and amine compounds such as 2,6-di-t-butyl-4-methylphenol.
- the amount of the antioxidant added is preferably 0 to 3% by mass in the aqueous dispersion composition.
- animal and vegetable oils include mineral oil, rapeseed oil, soybean oil, palm oil, palm oil, beef tallow, and lard.
- synthetic lubricating oil include polyalphaolefin, polybutadiene, polyisobutylene, and various ester oils.
- waxes synthetic waxes such as polyethylene wax and polypropylene wax, oxides and acid-modified products of these synthetic waxes, carnauba, montan, beeswax, etc., as long as the dispersibility in water and adhesion to the mold are not deteriorated.
- Natural wax and the like can be exemplified.
- Inorganic powders include talc, mica, mica, viscosity, organic clay, boronite, mortar, sericite, calcium carbonate, borate, alumina, titanium oxide, baking soda, zirconium oxide, graphite, carbon black, diamond powder, etc. Can be exemplified.
- silicone compounds such as silicone, dimethyl silicone, alkyl-modified silicone, and alkylaralkyl-modified silicone, zinc dialkyldithiophosphate (ZnDTP) for reducing friction, molybdenum dialkyldithiophosphate (MoDTP), and zinc dithiocarbamate (ZnDTC).
- ZnDTP zinc dialkyldithiophosphate
- MoDTC zinc dithiocarbamate
- Molybdenum dithiocarbamate Molybdenum dithiocarbamate
- phosphorus-based sulfur-based extreme pressure agents
- antifoaming agents preservatives, and the like
- aqueous dispersion composition of the present invention for example, water, the ethylene / ⁇ -olefin copolymer acid-modified product (B), and the additive as appropriate are homogenized manually or by using a stirrer.
- a method of emulsifying by a usual method such as using an emulsifying machine such as a mixer, a colloid mill, a line mixer, or a homogenizer.
- the water temperature at the time of emulsification is preferably 40 to 99 ° C, more preferably 50 to 99 ° C.
- Morpholine may be added when preparing the aqueous dispersion composition, or may be mixed in advance with the acid-modified product (B) and reacted. Morpholine is preferably added in an amount of 1 to 50 parts by mass, more preferably 1 to 30 parts by mass, and particularly preferably 2 to 20 parts by mass with respect to 100 parts by mass of the acid-modified product (B).
- the ethylene / ⁇ -olefin copolymer acid-modified product (B) has an arbitrary acid value, apparent viscosity at 150 ° C., weight average molecular weight, molecular weight distribution, weight fraction of unreacted molecules, and unreacted.
- an ethylene / ⁇ -olefin copolymer acid-modified product having a weight fraction of unreacted molecules having a molecular weight higher than the weight average molecular weight of the ethylene / ⁇ -olefin copolymer acid-modified product (B) (by using B), the stability, viscosity, and average molecular weight of the aqueous dispersion composition can be adjusted without changing the equipment and conditions at the time of emulsification.
- the adjusted weight fraction of the unreacted molecules and the weight of the unreacted molecules having a higher molecular weight than the weight average molecular weight of the ethylene / ⁇ -olefin copolymer acid-modified product (B) among the unreacted molecules The method using the ethylene / ⁇ -olefin copolymer acid-modified product (B) having a ratio determines the total amount of polar groups, the molecular weight and the molecular weight distribution in the ethylene / ⁇ -olefin copolymer acid-modified product (B).
- the stability, viscosity, and average molecular weight of the aqueous dispersion composition can be adjusted without changing the composition, for example, changes in properties when the aqueous dispersion composition is applied or coated and dried are likely to be small, and various types are available. It is preferable as a method for producing an aqueous dispersion composition having stability, viscosity and average molecular weight suitable for the application.
- the aqueous dispersion composition of the present invention is not particularly limited in use, and is a modifier, a modifier, a softener, a gel modifier, a latex modifier, and other water-soluble agents for various resins or rubber-like polymers.
- Emulsifying aids such as sex resin modifiers and emulsion polymerization aids, lubricating oil additives, adhesives, dispersants, dispersion aids, printing inks, printing pastes, lacquers, inks, coating agents for food packaging materials , Flooring materials, shoes coatings, automobile coatings, other water-based paints, papermaking / spinning / textile finishing agents, cutting oils, drawing oils and other metal processing oils, die-casting mold release agents, etc.
- the aqueous dispersion composition of the present invention can ensure good adhesion to a substrate when used as a heat sealant and is excellent in dispersibility in water. It can be preferably used.
- ⁇ Viscosity characteristics (A2)> The kinematic viscosity at 100 ° C. was measured and calculated by the method described in JIS K2283. The apparent viscosity (Brookfield viscosity) at 150 ° C. was measured and calculated by the method described in JIS K7117-1.
- PE indicates the mole fraction of ethylene units
- PO indicates the mole fraction of ⁇ -olefin units
- PO E indicates the mole fraction of the ethylene / ⁇ -olefin chain of the entire dyad chain. Shows the rate.
- the temperature is raised at 10 ° C./min, and the temperature at which the enthalpy curve obtained in the temperature raising process shows the maximum value is set as the melting point (Tm), and the total amount of heat absorbed due to melting is taken.
- the amount of heat of fusion ( ⁇ H) was used. If no peak was observed or the value of heat of fusion ( ⁇ H) was 1 J / g or less, the melting point (Tm) was considered not to be observed.
- the melting point (Tm) and the amount of heat of fusion ( ⁇ H) were determined based on JIS K7121.
- Acid value (mgKOH / g) (N / 10 KOH titration (ml) x F x 5.61) / (sample (g) x 0.01) ⁇ Apparent viscosity (B2)>
- the apparent viscosity (Brookfield viscosity) at 150 ° C. was measured and calculated by the method described in JIS K7117-1.
- Weight fraction of unreacted molecule 100 ⁇ S MD / S 0 ⁇ Unreacted molecules having a higher molecular weight than the weight average molecular weight of the ethylene / ⁇ -olefin copolymer acid-modified product (B) among the unreacted molecules contained in the ethylene / ⁇ -olefin copolymer acid-modified product (B).
- a chromatographic tube having a diameter of 50 mm is filled with crushed silica gel (Wakogel C-300, manufactured by Wako Pure Chemical Industries, Ltd.) to a height of 5 cm, impregnated with hexane, and then ethylene / ⁇ .
- -A solution prepared by dissolving 1 g of an olefin copolymer acid-modified product (B) in 5 mL of hexane and 20 mL of hexane were added in order from the upper part, and about 10 mL of the solution eluted from the lower part of the chromatograph tube was collected and dried.
- the molecular weight of the separated unreacted molecules was measured using HLC-8320GPC of Toso Co., Ltd. as follows, and the molecular weight was higher than the weight average molecular weight of the ethylene / ⁇ -olefin copolymer acid-modified product (B).
- the weight fraction of unreacted molecules was calculated.
- TSKgel SuperMultipore HZ-M 4 pieces was used, the column temperature was 40 ° C., tetrahydrofuran (manufactured by Wako Pure Chemical Industries, Ltd.) was used as the mobile phase, the developing speed was 0.35 ml / min, and the sample concentration was set to 0.35 ml / min.
- the sample injection volume was 5.5 g / L, the sample injection volume was 20 microliters, and a differential refractometer was used as a detector.
- PStQuick MP-M manufactured by Tosoh Corporation was used.
- the solid obtained by distilling off the solvent under reduced pressure was brought into a glove box, washed with hexane, and then extracted with dichloromethane. After distilling off the solvent under reduced pressure and concentrating, a small amount of hexane was added and left at ⁇ 20 ° C. to precipitate a red-orange solid. After washing this solid with a small amount of hexane, it is dried under reduced pressure to obtain a red-orange solid [methylphenylmethylene ( ⁇ 5 -cyclopentadienyl) ( ⁇ 5-2,7 -di-t-butylfur). Olenyl)] 1.20 g of zirconium dichloride was obtained.
- ⁇ Polymerization example 1> By charging 760 ml of heptane and 120 g of propylene into a stainless steel autoclave having an internal volume of 2 L sufficiently substituted with nitrogen, the temperature in the system is raised to 150 ° C., and then 0.85 MPa of hydrogen and 0.19 MPa of ethylene are supplied. The total pressure was 3 MPaG.
- the ethylene / propylene copolymer (A-1) shown in Table 1 was obtained by the above operation.
- the analysis results of the obtained ethylene / propylene copolymer (A-1) are shown in Table 1.
- ⁇ Polymerization example 2> By charging 710 mL of heptane and 145 g of propylene into a fully nitrogen-substituted stainless steel autoclave with an internal volume of 2 L, raising the temperature in the system to 150 ° C., and then supplying 0.40 MPa of hydrogen and 0.27 MPa of ethylene. The total pressure was 3 MPaG.
- the ethylene / propylene copolymer (A-3) shown in Table 1 was obtained by the above operation.
- the analysis results of the obtained ethylene / propylene copolymer (A-3) are shown in Table 1.
- ethylene obtained by a method using a vanadium-based catalyst containing a vanadium compound and an organoaluminum compound in the same manner as described in Japanese Patent Publication No. 2-1163 and Japanese Patent Publication No. 2-7998.
- Propylene copolymers (A-2), (A-4) and (A-5) were used in the examples.
- Table 1 shows the analysis results of the ethylene / propylene copolymers (A-2), (A-4), and (A-5) used.
- Ethylene-propylene copolymer (A-2) is 91.4% by weight
- ethylene-propylene copolymer (A-4) is 4.3% by weight
- ethylene-propylene copolymer (A-5) is 4.
- An ethylene / propylene copolymer (A-8) was obtained.
- the analysis results of the obtained ethylene / propylene copolymer (A-8) are shown in Table 1.
- the temperature inside the reactor was further raised to 175 ° C., and after depressurization in the system, unnecessary components (unreacted maleic anhydride and decomposition products of di-t-butyl peroxide, etc.) were added under reduced pressure and nitrogen airflow conditions. Removed.
- Table 3 shows the analysis results of the obtained ethylene-propylene copolymer acid-modified product (B-1).
- ⁇ Aqueous dispersion composition > [Example 1] 41.6 g of ethylene / propylene copolymer acid-modified product (B-1) and 10.4 g of polyoxyethylene alkyl ether Emulgen 1108 (manufactured by Kao Co., Ltd.) were taken in a 500 mL round bottom flask with a stirrer, and the stirring speed was 50 rpm. The temperature was raised to 96 ° C. while stirring with. Next, a solution prepared by mixing 7.5 g of morpholine deer first grade (manufactured by Kanto Chemical Co., Inc.) and 10.0 g of pure water was added, and the mixture was reacted at a stirring speed of 250 rpm for 30 minutes.
- morpholine deer first grade manufactured by Kanto Chemical Co., Inc.
- aqueous dispersion composition was evaluated for stability, viscosity, and average particle size according to the following method.
- the analysis results of the obtained aqueous dispersion composition are shown in Table 4.
- Example 2 to 10 An aqueous dispersion composition was obtained in the same manner as in Example 1 except that the ethylene / propylene copolymer acid-modified product used was changed to the contents shown in Table 4. The analysis results of the obtained aqueous dispersion composition are shown in Table 4.
- aqueous dispersion composition was obtained in the same manner as in Example 1 except that the ethylene / propylene copolymer acid-modified product used was changed to the contents shown in Table 4.
- the stability of the aqueous dispersion composition is evaluated by visually observing the presence or absence of separation after placing the aqueous dispersion composition in a transparent cylindrical glass container having a length of 120 mm and a diameter of 40 mm and allowing it to stand at 23 ° C. for 15 hours. did. Those having a uniform turbidity of the aqueous dispersion composition in the glass container were evaluated as having no separation, and those having a difference in the turbidity in the height direction were evaluated as having separation.
- Viscosity of aqueous dispersion composition The viscosity of the aqueous dispersion composition was measured at 23 ° C. using a B-type viscometer TVB-10M (manufactured by Toki Sangyo Co., Ltd.). For the measurement, the sample for which the stability of the aqueous dispersion composition was evaluated was used as it was.
- Average particle size of aqueous dispersion composition The average particle size of the aqueous dispersion composition was measured using Nanotrack WAVE2-EX150 (manufactured by MicrotracBEL). For the measurement, the sample whose stability of the aqueous dispersion composition was evaluated was weighed into a cup made of 1 g polypropylene, diluted with pure 10 g, and measured. From the obtained measurement results, the diameter of the particles when the cumulative volume was 50% when the total volume was 100% was defined as the average particle size.
- the aqueous dispersion composition using the ethylene / propylene copolymer acid-modified product having a low weight fraction of the unreacted molecule and a small proportion of the high molecular weight component in the unreacted molecule is available. Since the average particle size is small and the viscosity is high, the stability of the aqueous dispersion composition is more excellent, and when applied to the substrate, the substrate has excellent adhesion and is resistant to dripping. It is more preferable because it can be expected to have a coat property.
- the aqueous dispersion composition of the present invention, the method for producing the aqueous dispersion composition, and the modified ethylene / ⁇ -olefin copolymer acid are an aqueous dispersion having excellent stability and excellent coating property on a substrate.
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Abstract
Description
(A1)エチレン単位の含有率が30~85モル%の範囲にある。
(A2)100℃における動粘度が10~5,000mm2/sの範囲にある。
(A3)ゲルパーミエーションクロマトグラフィー(GPC)により測定し、ポリスチレン換算により得られた重量平均分子量が、1,000~50,000の範囲にある。
(A4)ゲルパーミエーションクロマトグラフィー(GPC)により測定し、ポリスチレン換算により得られた分子量において、分子量分布(Mw/Mn)が、2.5以下である。
(A5)下記式[1]で表されるB値が1.1以上である。
(A6)1H-NMRにより測定した不飽和結合量が炭素原子1000個あたり0.5個未満である。
(B1)酸価が1~300mgKOH/gの範囲にある。
(B2)150℃における見かけ粘度が1~1,000cPsの範囲にある。
(B3)ゲルパーミエーションクロマトグラフィー(GPC)により測定し、ポリスチレン換算により得られた重量平均分子量が、1,000~50,000の範囲にある。
(B4)ゲルパーミエーションクロマトグラフィー(GPC)により測定し、ポリスチレン換算により得られた分子量において、分子量分布(Mw/Mn)が、2.5以下である。
(B5)高速液体クロマトグラフィー(HPLC)により測定される未反応分子の重量分率が、59%以下である。
本発明の水分散体組成物は、以下に説明するエチレン・α-オレフィン共重合体(A)の酸変性体(B)を含有する。以下、それぞれ「成分(A)」および「成分(B)」ともいう。
〔エチレン・α-オレフィン共重合体(A)〕
本発明の水分散体を形成するエチレン・α-オレフィン共重合体酸変性物(B)の元となるエチレン・α-オレフィン共重合体(A)は、下記(A1)~(A6)を満たす。
成分(A)中のエチレン単位の含有率は30~85モル%の範囲にあり、好ましくは40~70モル%、特に好ましくは45~65モル%の範囲にある。含有率が上記範囲を過度に外れると、共重合体に結晶性が生じ、結果として共重合体の粘度が上昇したり、固体状になったりして、共重合体の水中への分散性が悪化する。また、含有率が85モル%を上回ると主鎖中に分解反応を起こし易い三級炭素が少なくなり、本発明の水分散体組成物を、例えばダイカスト用離形剤として使用した際に熱によって発生した酸化劣化物が金型表面に堆積され易くなるため、好ましくない。
成分(A)の動粘度は、JIS K2283に記載の方法により測定される値である。成分(A)の100℃における動粘度は10~5,000mm2/sの範囲にあり、好ましくは10~2,500mm2/s、より好ましくは15~2,500mm2/s、特に好ましくは15~500mm2/sの範囲にある。動粘度が上記範囲を過度に下回ると、易揮発成分が多いため引火しやすくなって保存性が悪化したり、水分散体において蒸発減量が増大したり、例えば、ダイカスト用離型剤として使用した際に金型に付着しやすい高分子量成分が減少したりするなど、好ましくない。動粘度が上記範囲を過度に上回ると、共重合体の粘度が上昇し、水中へ均一に分散しにくくなる。
成分(A)の重量平均分子量(Mw)は、ゲルパーミエーションクロマトグラフィー(GPC)によって後述する方法に従い測定し、標準ポリスチレン換算により得られる値である。成分(A)の重量平均分子量(Mw)は1,000~50,000の範囲にあり、好ましくは1,500~30,000、より好ましくは1,500~20,000、特に好ましくは1,500~7,000の範囲にある。Mwが上記範囲を過度に下回ると、易揮発成分が多いため引火しやすくなって保存性が悪化したり、水分散体において蒸発減量が増大したり、例えば、ダイカスト用離型剤として使用した際に金型に付着しやすい高分子量成分が減少したりするなど、好ましくない。Mwが上記範囲を過度に上回ると、共重合体の粘度が上昇し、水中へ均一に分散しにくくなる。
成分(A)の分子量分布は、ゲルパーミエーションクロマトグラフィー(GPC)によって後述する方法に従い測定し、標準ポリスチレン換算により得られた重量平均分子量(Mw)と数平均分子量(Mn)との比(Mw/Mn)として算出される。成分(A)のMw/Mnは2.5以下であり、好ましくは2.3以下、より好ましくは2.0以下である。分子量分布が上記範囲を過度に超えるということは、共重合体が低分子量成分や高分子量成分を多く含むことを意味する。共重合体が低分子量成分を多く含む場合は、易揮発成分が多いため引火しやすくなって保存性が悪化したり、水分散体において蒸発減量が増大する。共重合体が高分子量成分を多く含む場合は、共重合体の粘度が上昇し、水中へ均一に分散しにくくなる。
成分(A)の下記式[1]で表されるB値が1.1以上、好ましくは1.2以上である。B値の上限値は特に限定されないが、通常2.0以下である。
(A6)1H-NMRにより測定した不飽和結合量が炭素原子1000個あたり0.5個未満である。
(A7)融点が観測されない。
成分(A)は、示差走査型熱量測定(DSC)において融点が観測されないことが好ましい。ここで、融点(Tm)が観測されないとは、示差走査型熱量測定(DSC)で測定される融解熱量(ΔH)(単位:J/g)が実質的に計測されないことをいう。融解熱量(ΔH)が実質的に計測されないとは、示差走査型熱量測定(DSC)においてピークが観測されないか、あるいは観測された融解熱量が1J/g以下であることである。
また、α-オレフィンとともに、極性基含有モノマー、芳香族ビニル化合物、脂環族ビニル化合物および環状オレフィンから選択される少なくとも1種の他のモノマーを反応系に共存させて重合を進め、成分(A)を得ることもできる。エチレンおよびα-オレフィンの合計100質量部に対して、前記他のモノマーは、例えば20質量部以下、好ましくは10質量部以下の量で用いることができる。
環状オレフィンとしては、シクロペンテン、シクロヘプテン、ノルボルネン、5-メチル-2-ノルボルネン、テトラシクロドデセンなどの炭素数3~30、好ましくは3~20の環状オレフィン類を例示することができる。
成分(A)は、下記一般式[I]で表される架橋メタロセン化合物(a)、ならびに有機金属化合物(b-1)、有機アルミニウムオキシ化合物(b-2)および前記架橋メタロセン化合物(a)と反応してイオン対を形成する化合物(b-3)から選ばれる少なくとも1種の化合物(b)を含むオレフィン重合触媒の存在下で、エチレンとα-オレフィンとを共重合することにより製造することができる。
(Y、M、R1~R14、Q、nおよびj)
Yは、第14族原子であり、例えば、炭素原子、ケイ素原子、ゲルマニウム原子およびスズ原子が挙げられ、好ましくは炭素原子またはケイ素原子であり、より好ましくは炭素原子である。
R1~R12は、水素原子、炭素数1~20の炭化水素基、ケイ素含有基、窒素含有基、酸素含有基、ハロゲン原子およびハロゲン含有基から選ばれる原子または置換基であり、それぞれ同一でも異なっていてもよい。また、R1からR12までの隣接した置換基は互いに結合して環を形成していてもよく、互いに結合していなくてもよい。
ハロゲン含有基としては、上述した炭素数1~20の炭化水素基、ケイ素含有基、窒素含有基または酸素含有基において、少なくとも1つの水素原子がハロゲン原子によって置換された基であるトリフルオロメチル基、トリブロモメチル基、ペンタフルオロエチル基、ペンタフルオロフェニル基などが例示される。
ハロゲン原子および炭素数1~20の炭化水素基の詳細は、上述のとおりである。Qがハロゲン原子である場合は、塩素原子が好ましい。Qが炭素数1~20の炭化水素基である場合は、該炭化水素基の炭素数は1~7であることが好ましい。
nは1~4の整数であり、好ましくは1または2であり、さらに好ましくは1である。
R13およびR14は水素原子、炭素数1~20の炭化水素基(ただし、以下のアリール基および置換アリール基を除く)、アリール基、置換アリール基、ケイ素含有基、窒素含有基、酸素含有基、ハロゲン原子およびハロゲン含有基から選ばれる原子または置換基であり、それぞれ同一でも異なっていてもよい。また、R13およびR14は互いに結合して環を形成していてもよく、互いに結合していなくてもよい。
アリール基としては、前述した炭素数3~20の環状不飽和炭化水素基の例と一部重複するが、芳香族化合物から誘導された置換基であるフェニル基、1-ナフチル基、2-ナフチル基、アントラセニル基、フェナントレニル基、テトラセニル基、クリセニル基、ピレニル基、インデニル基、アズレニル基、ピロリル基、ピリジル基、フラニル基、チオフェニル基などが例示される。アリール基としては、フェニル基または2-ナフチル基が好ましい。
[ジメチルメチレン(η5-シクロペンタジエニル)(η5-フルオレニル)]ジルコニウムジクロリド、[ジメチルメチレン(η5-シクロペンタジエニル)(η5-2,7-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリド、[ジメチルメチレン(η5-シクロペンタジエニル)(η5-3,6-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリド、[ジメチルメチレン(η5-シクロペンタジエニル)(η5-オクタメチルオクタヒドロジベンゾフルオレニル)]ジルコニウムジクロリド、[ジメチルメチレン(η5-シクロペンタジエニル)(η5-テトラメチルオクタヒドロジベンゾフルオレニル)]ジルコニウムジクロリド、
[シクロヘキシリデン(η5-シクロペンタジエニル)(η5-フルオレニル)]ジルコニウムジクロリド、[シクロヘキシリデン(η5-シクロペンタジエニル)(η5-2,7-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリド、[シクロヘキシリデン(η5-シクロペンタジエニル)(η5-3,6-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリド、[シクロヘキシリデン(η5-シクロペンタジエニル)(η5-オクタメチルオクタヒドロジベンゾフルオレニル)]ジルコニウムジクロリド、[シクロヘキシリデン(η5-シクロペンタジエニル)(η5-テトラメチルオクタヒドロジベンゾフルオレニル)]ジルコニウムジクロリド、
[ジフェニルメチレン(η5-シクロペンタジエニル)(η5-フルオレニル)]ジルコニウムジクロリド、[ジフェニルメチレン(η5-シクロペンタジエニル)(η5-2,7-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリド、ジフェニルメチレン(η5-2-メチル-4-t-ブチルシクロペンタジエニル)(η5-2,7-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリド、[ジフェニルメチレン(η5-シクロペンタジエニル)(η5-3,6-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリド、[ジフェニルメチレン(η5-シクロペンタジエニル)(η5-オクタメチルオクタヒドロジベンゾフルオレニル)]ジルコニウムジクロリド、ジフェニルメチレン{η5-(2-メチル-4-i-プロピルシクロペンタジエニル)}(η5-オクタメチルオクタヒドロジベンゾフルオレニル)]ジルコニウムジクロリド、[ジフェニルメチレン(η5-シクロペンタジエニル)(η5-テトラメチルオクタヒドロジベンゾフルオレニル)]ジルコニウムジクロリド、
[メチルフェニルメチレン(η5-シクロペンタジエニル)(η5-フルオレニル)]ジルコニウムジクロリド、[メチルフェニルメチレン(η5-シクロペンタジエニル)(η5-2,7-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリド、[メチルフェニルメチレン(η5-シクロペンタジエニル)(η5-3,6-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリド、[メチルフェニルメチレン(η5-シクロペンタジエニル)(η5-オクタメチルオクタヒドロジベンゾフルオレニル)]ジルコニウムジクロリド、[メチルフェニルメチレン(η5-シクロペンタジエニル)(η5-テトラメチルオクタヒドロジベンゾフルオレニル)]ジルコニウムジクロリド、
[メチル(3-メチルフェニル)メチレン(η5-シクロペンタジエニル)(η5-フルオレニル)]ジルコニウムジクロリド、[メチル(3-メチルフェニル)メチレン(η5-シクロペンタジエニル)(η5-2,7-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリド、[メチル(3-メチルフェニル)メチレン(η5-シクロペンタジエニル)(η5-3,6-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリド、[メチル(3-メチルフェニル)メチレン(η5-シクロペンタジエニル)(η5-オクタメチルオクタヒドロジベンゾフルオレニル)]ジルコニウムジクロリド、[メチル(3-メチルフェニル)メチレン(η5-シクロペンタジエニル)(η5-テトラメチルオクタヒドロジベンゾフルオレニル)]ジルコニウムジクロリド、
[ジフェニルシリレン(η5-シクロペンタジエニル)(η5-フルオレニル)]ジルコニウムジクロリド、[ジフェニルシリレン(η5-シクロペンタジエニル)(η5-2,7-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリド、[ジフェニルシリレン(η5-シクロペンタジエニル)(η5-3,6-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリド、[ジフェニルシリレン(η5-シクロペンタジエニル)(η5-オクタメチルオクタヒドロジベンゾフルオレニル)]ジルコニウムジクロリド、[ジフェニルシリレン(η5-シクロペンタジエニル)(η5-テトラメチルオクタヒドロジベンゾフルオレニル)]ジルコニウムジクロリド、
[ビス(3-メチルフェニル)シリレン(η5-シクロペンタジエニル)(η5-フルオレニル)]ジルコニウムジクロリド、[ビス(3-メチルフェニル)シリレン(η5-シクロペンタジエニル)(η5-2,7-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリド、[ビス(3-メチルフェニル)シリレン(η5-シクロペンタジエニル)(η5-3,6-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリド、[ビス(3-メチルフェニル)シリレン(η5-シクロペンタジエニル)(η5-オクタメチルオクタヒドロジベンゾフルオレニル)]ジルコニウムジクロリド、[ビス(3-メチルフェニル)シリレン(η5-シクロペンタジエニル)(η5-テトラメチルオクタヒドロジベンゾフルオレニル)]ジルコニウムジクロリド、
[ジシクロヘキシルシリレン(η5-シクロペンタジエニル)(η5-フルオレニル)]ジルコニウムジクロリド、[ジシクロヘキシルシリレン(η5-シクロペンタジエニル)(η5-2,7-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリド、[ジシクロヘキシルシリレン(η5-シクロペンタジエニル)(η5-3,6-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリド、[ジシクロヘキシルシリレン(η5-シクロペンタジエニル)(η5-オクタメチルオクタヒドロジベンゾフルオレニル)]ジルコニウムジクロリド、[ジシクロヘキシルシリレン(η5-シクロペンタジエニル)(η5-テトラメチルオクタヒドロジベンゾフルオレニル)]ジルコニウムジクロリド、
[エチレン(η5-シクロペンタジエニル)(η5-フルオレニル)]ジルコニウムジクロリド、[エチレン(η5-シクロペンタジエニル)(η5-2,7-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリド、[エチレン(η5-シクロペンタジエニル)(η5-3,6-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリド、[エチレン(η5-シクロペンタジエニル)(η5-オクタメチルオクタヒドロジベンゾフルオレニル)]ジルコニウムジクロリド、[エチレン(η5-シクロペンタジエニル)(η5-テトラメチルオクタヒドロジベンゾフルオレニル)]ジルコニウムジクロリド、
等が挙げられる。
本発明で好ましく使用される重合触媒は、架橋メタロセン化合物(a)、ならびに有機金属化合物(b-1)、有機アルミニウムオキシ化合物(b-2)および前記架橋メタロセン化合物(a)と反応してイオン対を形成する化合物(b-3)から選ばれる少なくとも1種の化合物(b)を含む。
(b-1a)一般式 RamAl(ORb)nHpXq
(式中、RaおよびRbは、互いに同一でも異なっていてもよく、炭素数1~15、好ましくは1~4の炭化水素基を示し、Xはハロゲン原子を示し、mは0<m≦3、nは0≦n<3、pは0≦p<3、qは0≦q<3の数であり、かつm+n+p+q=3である)
で表される有機アルミニウム化合物。
(b-1c)一般式 RaRbM3(式中、RaおよびRbは、互いに同一でも異なっていてもよく、炭素数1~15、好ましくは1~4の炭化水素基を示し、M3はMg、ZnまたはCdである。)で表される周期律表第2族または第12族金属のジアルキル化合物。
上記のイオン性化合物(b-3)は、1種単独で用いてもよく2種以上を混合して用いでもよい。
本発明では、オレフィン重合触媒の構成成分として、必要に応じて担体(c)を用いてもよい。
担体(c)としての有機化合物としては、粒径が0.5~300μmの範囲にある顆粒状ないしは微粒子状固体を挙げることができる。具体的には、エチレン、プロピレン、1-ブテン、4-メチル-1-ペンテンなどの炭素原子数が2~14のα-オレフィンを主成分として生成される(共)重合体またはビニルシクロヘキサン、スチレンを主成分として生成される(共)重合体、およびそれらの変成体を例示することができる。
架橋メタロセン化合物(a)(以下「成分(a)」ともいう)は、反応容積1リットル当り、通常10-9~10-1モル、好ましくは10-8~10-2モルになるような量で用いられる。
得られる共重合体の分子量は、重合系中の水素濃度や重合温度を変化させることによって調節することができる。さらに、使用する化合物(b)の量により調節することもできる。水素を添加する場合、水素量は生成する共重合体1kgあたり0.001~5,000NL程度が適当である。
本発明の水分散体を形成するエチレン・α-オレフィン共重合体酸変性体(B)は、上記エチレン・α-オレフィン共重合体(A)の酸変性体である。当該酸変性体(B)を「成分(B)」または「酸変性エチレン・α-オレフィン共重合体(B)」ともいう。
これらの中でも、一つのモノマーとしての極性が高く、また、パーオキサイドを用いる変性反応においてホモポリマー等の副生物ができにくいという特徴があることから、マレイン酸および無水マレイン酸から選択される少なくとも1種が好ましい。
グラフト化反応は、例えば特開昭61-126120号に記載された方法によって、通常、ジ-t-ブチルパーオキサイド等のラジカル開始剤の存在下に、エチレン・α-オレフィン共重合体(A)にグラフト成分を添加して行われる。このとき、反応温度は通常150~200℃、好ましくは160~180℃であり、反応時間は通常1~50時間、好ましくは1~10時間である。グラフト成分は、得られる成分(B)の酸価が下記範囲になる量で使用することが好ましい。
酸価は、グラフト成分のグラフト量の指標として用いられる。成分(B)の酸価は、好ましくは1~300mgKOH/gの範囲、より好ましくは5~200mgKOH/g、さらに好ましくは10~150mgKOH/gの範囲にある。酸価が上記範囲内を下回ると、共重合体の極性が低くなって水分散体の安定性が低下することがある。酸価が上記範囲を上回ると、グラフト成分同士の水素結合が生じ、共重合体の粘度が高くなってその結果水中への分散性が低下することがある。
成分(B)の150℃における見かけ粘度(ブルックフィールド粘度)は、JIS K7117-1に記載の方法により測定される値である。成分(B)の150℃における見かけ粘度は、好ましくは1~1,000cPsの範囲、より好ましくは5~800cPs、特に好ましくは5~90cPsの範囲にある。前記見かけ粘度が上記範囲にあると、低揮発性とハンドリング性、水中への分散性とのバランスの点で優れる。
成分(B)の重量平均分子量(Mw)は、ゲルパーミエーションクロマトグラフィー(GPC)によって後述する方法に従い測定し、標準ポリスチレン換算により得られる値である。成分(B)の重量平均分子量(Mw)は、好ましくは1,000~50,000の範囲、より好ましくは1,000~30,000、さらに好ましくは1,500~30,000、特に好ましくは2,000~7,000、最も好ましくは5,000~6,000の範囲にある。Mwが上記範囲を過度に下回ると、易揮発成分が多いため引火しやすくなって保存性が悪化したり、水分散体において蒸発減量が増大したりすることがある。Mwが上記範囲を過度に上回ると、共重合体の粘度が上昇し、水中へ均一に分散しにくくなることがある。
未反応分子の重量分率が上記範囲以下にあると、成分(B)中に含まれる、水への親和性に優れる不飽和カルボン酸およびその誘導体で変性した酸変性体の分子の割合が多くなり、成分(B)が水中へ均一に分散しやすくなるため好ましい。
(B6)酸変性体(B)中に含まれる未反応分子の内、ゲルパーミエーションクロマトグラフィー(GPC)により測定し、ポリスチレン換算により得られた酸変性物(B)の重量平均分子量よりも分子量の高い未反応分子の重量分率が20%以下である。
(B7)融点が観測されない。
成分(B)は、示差走査型熱量測定(DSC)において融点が観測されないことが好ましい。ここで、融点(Tm)が観測されないとは、示差走査型熱量測定(DSC)で測定される融解熱量(ΔH)(単位:J/g)が実質的に計測されないことをいう。融解熱量(ΔH)が実質的に計測されないとは、示差走査型熱量測定(DSC)においてピークが観測されないか、あるいは観測された融解熱量が1J/g以下であることである。
<水分散体組成物>
本発明の水分散体組成物は、上記エチレン・α-オレフィン共重合体酸変性体(B)を、0.01~50質量%、好ましくは0.05~30質量%の範囲で含む。
本発明における平均粒径とは、全体積を100%としたときの累積体積が50%時の粒子の直径をいい、動的光散乱式粒子径分布測定装置やナノトラック粒度分布測定装置を使用して測定することができる。本発明では、分散液中の粒子の平均粒径はナノトラック WAVE2-EX150(MicrotracBEL社製)を用いて測定した。
本発明では、水分散体組成物の安定性は、縦120mm、直径40mmの透明な円筒形ガラス容器に水分散体組成物を入れ、23℃で15時間静置した後の分離有無を目視にて評価した。
本発明の水分散体組成物は、上記エチレン・α-オレフィン共重合体酸変性体(B)に加え、界面活性剤、腐食防止剤、酸化防止剤、動植物油またはその脂肪酸エステル、合成潤滑油、ワックス、無機粉体、その他の各種添加剤を含んでいてもよい。添加剤は1種単独で用いてもよく、2種以上を組み合わせて用いてもよい。
本発明の水分散体組成物の製造方法としては、例えば、水と、上記エチレン・α-オレフィン共重合体酸変性体(B)および適宜上記添加剤とを、手動もしくは撹拌機を用いる、ホモミキサー、コロイドミル、ラインミキサー、ホモジナイザー等の乳化機を用いる等の通常の方法により乳化する方法が挙げられる。乳化時の水温は、好ましくは40~99℃、より好ましくは50~99℃である。
本発明の水分散体組成物は、特に用途の限定は無く、種々の樹脂またはゴム状重合体の改質剤、改質助剤、軟化剤、ゲル改質剤、ラテックス改質剤、その他水溶性樹脂改質剤、乳化重合助剤等の乳化助剤、潤滑油添加剤、粘接着剤、分散剤、分散助剤、印刷インキ、印刷ペースト、ラッカー、インク、食品包材への塗布剤、床材への塗布剤、靴への塗布剤、自動車への塗布剤、その他水性塗料、製紙・紡糸・織物の仕上げ剤、切削油、引抜油等の金属加工油、ダイカスト用離型剤等の各種離型剤、ヒートシール剤、化粧品を例とする各種改質剤、改質助剤、インキ、塗料、コーティング材、接着剤、等に使用することができる。本発明の水分散体組成物は、ヒートシール剤として用いた場合の、良好な基材への付着性を確保でき、且つ水中への分散性に優れることから、このうち、特にヒートシール剤に好適に用いることができる。
[評価方法]
下記実施例および比較例等において、エチレン・α-オレフィン共重合体(A)、酸変性エチレン・α-オレフィン共重合体(B)、および水分散体組成物の物性等は以下の方法で測定した。
〈エチレン単位の含有率(mol%)(A1)〉
日本分光社製フーリエ変換赤外分光光度計FT/IR-610またはFT/IR-6100を用い、長鎖メチレン基の横揺れ振動に基づく721cm-1付近の吸収とプロピレンの骨格振動に基づく1155cm-1付近の吸収との吸光度比(D1155cm-1/D721cm-1)を算出し、予め作成しておいた検量線(ASTM D3900での標準試料を使って作成)よりエチレン単位の含有率(質量%)を求めた。次に、得られたエチレン単位の含有率(質量%)を用い、下記式に従ってエチレン単位の含有率(mol%)を求めた。
100℃における動粘度は、JIS K2283に記載の方法により、測定、算出した。150℃における見かけ粘度(ブルックフィールド粘度)は、JIS K7117-1に記載の方法により、測定、算出した。
分子量および分子量分布は、東ソー株式会社HLC-8320GPCを用いて以下のようにして測定した。分離カラムとして、TSKgel SuperMultiporeHZ-M(4本)を用い、カラム温度を40℃とし、移動相にはテトラヒドロフラン(和光純薬社製)を用い、展開速度を0.35ml/分とし、試料濃度を5.5g/Lとし、試料注入量を20マイクロリットルとし、検出器として示差屈折計を用いた。標準ポリスチレンとしては、東ソー株式会社製PStQuick MP-Mを用いた。汎用校正の手順に従い、ポリスチレン分子量換算として重量平均分子量(Mw)および数平均分子量(Mn)を算出し、これらの値から分子量分布(Mw/Mn)を算出した。
o-ジクロロベンゼン/ベンゼン-d6(4/1[vol/vol%])を測定溶媒とし、測定温度120℃、スペクトル幅250ppm、パルス繰り返し時間5.5秒、かつパルス幅4.7・sec(45°パルス)の測定条件下(100MHz、日本電子ECX400P)、または測定温度120℃、スペクトル幅250ppm、パルス繰り返し時間5.5秒、かつパルス幅5.0・sec(45°パルス)の測定条件下(125MHz、ブルカー・バイオスピンAVANCEIIIcryo-500)にて13C-NMRスペクトルを測定し、下記式[1]に基づきB値を算出した。ピークの帰属は前述の公知文献を参考にして行った。
o-ジクロロベンゼン-d4を測定溶媒とし、測定温度120℃、スペクトル幅20ppm、パルス繰り返し時間7.0秒、かつパルス幅6.15μsec(45°パルス)の測定条件下にて、1H-NMRスペクトル(400MHz、日本電子ECX400P)を測定した。ケミカルシフト基準には、溶媒ピーク(オルトジクロロベンゼン 7.1ppm)を用い、0~3ppmに観測されるメインピークと、4~6ppmに観測される不飽和結合由来のピークとの積分値の比率より、炭素原子1000個当たりの不飽和結合量(個/1000C)を算出した。
セイコーインスツルメント社X-DSC-7000を用い、簡易密閉できるアルミサンプルパンに約8mgの共重合体の試料を入れてDSCセルに配置し、DSCセルを窒素雰囲気下にて室温から150℃まで10℃/分で昇温し、次いで、150℃で5分間保持した後、10℃/分で降温し、DSCセルを-100℃まで冷却した(降温過程)。次いで、-100℃で5分間保持した後、10℃/分で昇温し、昇温過程で得られるエンタルピー曲線が極大値を示す温度を融点(Tm)とし、融解に伴う吸熱量の総和を融解熱量(ΔH)とした。ピークが観測されないか、融解熱量(ΔH)の値が1J/g以下の場合、融点(Tm)は観測されないとみなした。融点(Tm)および融解熱量(ΔH)の求め方は、JIS K7121に基づいて行った。
〈酸価(B1)〉
混合キシレン:n?ブタノール=1:1質量比の混合溶媒に、精秤した共重合体の試料を溶解させて試料溶液を得た。次いで、この試料溶液を、予め標定されたN/10水酸化カリウムのアルコール溶液(特級水酸化カリウム7gにイオン交換水5gを添加し、1級エチルアルコールで1L(リットル)とし、N/10塩酸と1%フェノールフタレイン溶液にて力価=Fを標定したもの)で滴定し、その中和量から次式に従って算出した。
=(N/10 KOH滴定量(ml)×F×5.61)/(試料(g)×0.01)
〈見かけ粘度(B2)〉
150℃における見かけ粘度(ブルックフィールド粘度)は、JIS K7117-1に記載の方法により、測定、算出した。
分子量および分子量分布は、東ソー株式会社HLC-8320GPCを用いて以下のようにして測定した。分離カラムとして、TSKgel SuperMultiporeHZ-M(4本)を用い、カラム温度を40℃とし、移動相にはテトラヒドロフラン(和光純薬社製)を用い、展開速度を0.35ml/分とし、試料濃度を5.5g/Lとし、試料注入量を20マイクロリットルとし、検出器として示差屈折計を用いた。標準ポリスチレンとしては、東ソー株式会社製PStQuick MP-Mを用いた。汎用校正の手順に従い、ポリスチレン分子量換算として重量平均分子量(Mw)および数平均分子量(Mn)を算出し、これらの値から分子量分布(Mw/Mn)を算出した。
未反応分子の重量分率は、Waters株式会社製HPLC装置(Alliance e2695 Separations Module / 2414 RI Detector)を用いて以下のようにして測定した。
流速 :1ml/分
サンプル濃度:1w/v%
サンプル注入量:20μL
カラム:Agilent Technologies, Inc.製 順相系カラム
カラムサイズ:内径4.6mm、長さ250mm
カラム充填剤:シリカ粒子(粒径5μm)
検出器:示差屈折計
本発明の実施例にて、エチレン・α-オレフィン共重合体酸変性物(B)の製造に用いたエチレン・プロピレン共重合体を標品とし、標品を上記条件で測定した際の(2~3.5分の領域に出現する)ピーク面積(S0)と、各試料の測定結果における同位置のピーク面積(SMD)の値から、下記式によって特定される。
〈エチレン・α-オレフィン共重合体酸変性物(B)中に含まれる未反応分子の内、エチレン・α-オレフィン共重合体酸変性物(B)の重量平均分子量よりも分子量が高い未反応分子の重量分率(B6)〉
エチレン・α-オレフィン共重合体酸変性物(B)中に含まれる未反応分子の分子量は、未反応分子をシリカカラムにより分取し、ゲルパーミエーションクロマトグラフィー(GPC)により分子量を測定することで求めた。未反応分子の分取は、直径50mmのクロマトグラフ管に高さ5cmまで破砕状シリカゲル(和光純薬工業社製、Wakogel C-300)を充填し、ヘキサンを含侵させた後、エチレン・α-オレフィン共重合体酸変性物(B)1gをヘキサン5mLに溶解した溶液、ヘキサン20mLを順に上部から加え、クロマトグラフ管下部より溶出してきた溶液約10mLを採取、乾燥することで行った。分取した未反応分子は、東ソー株式会社HLC-8320GPCを用いて以下のようにして分子量を測定し、エチレン・α-オレフィン共重合体酸変性物(B)の重量平均分子量よりも分子量が高い未反応分子の重量分率を計算した。分離カラムとして、TSKgel SuperMultiporeHZ-M(4本)を用い、カラム温度を40℃とし、移動相にはテトラヒドロフラン(和光純薬社製)を用い、展開速度を0.35ml/分とし、試料濃度を5.5g/Lとし、試料注入量を20マイクロリットルとし、検出器として示差屈折計を用いた。標準ポリスチレンとしては、東ソー株式会社製PStQuick MP-Mを用いた。 [エチレン・α-オレフィン共重合体(A)の製造例]
エチレン・α-オレフィン共重合体(A)は以下の重合例に従い製造した。なお、得られたエチレン・α-オレフィン共重合体(A)について、必要に応じて、下記方法で水添操作を実施した。
内容積1Lのステンレス製オートクレーブに0.5質量%Pd/アルミナ触媒のヘキサン溶液100mLおよびエチレン・α-オレフィン共重合体の30質量%ヘキサン溶液500mLを加え、オートクレーブを密閉した後、窒素置換を行なった。次いで、撹拌をしながら140℃まで昇温し、系内を水素置換した後、水素で1.5MPaまで昇圧して15分間水添反応を実施した。
〔合成例1〕
[メチルフェニルメチレン(η5-シクロペンタジエニル)(η5-2,7-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリドの合成
(i)6-メチル-6-フェニルフルベンの合成
窒素雰囲気下、200mL三口フラスコにリチウムシクロペンタジエン7.3g(101.6mmol)および脱水テトラヒドロフラン100mLを加えて攪拌した。溶液をアイスバスで冷却し、アセトフェノン15.0g(111.8mmol)を滴下した。その後、室温で20時間攪拌し、得られた溶液を希塩酸水溶液でクエンチした。ヘキサン100mLを加えて可溶分を抽出し、この有機層を水、飽和食塩水で洗浄後、無水硫酸マグネシウムで乾燥した。その後、溶媒を留去し、得られた粘性液体をカラムクロマトグラフィー(ヘキサン)で分離し、目的物(赤色粘性液体)を得た。
窒素雰囲気下、100mL三口フラスコに2,7-ジ-t-ブチルフルオレン2.01g(7.20mmol)および脱水t-ブチルメチルエーテル50mLを添加した。氷浴で冷却しながらn-ブチルリチウム/ヘキサン溶液(1.65M)4.60mL(7.59mmol)を徐々に添加し、室温で16時間攪拌した。6-メチル-6-フェニルフルベン1.66g(9.85mmol)を添加した後、加熱還流下で1時間攪拌した。氷浴で冷却しながら水50mLを徐々に添加し、得られた二層の溶液を200mL分液漏斗に移した。ジエチルエーテル50mLを加えて数回振った後水層を除き、有機層を水50mLで3回、飽和食塩水50mLで1回洗浄した。無水硫酸マグネシウムで30分間乾燥した後、減圧下で溶媒を留去した。少量のヘキサンを加えて得た溶液に超音波を当てたところ固体が析出したので、これを採取して少量のヘキサンで洗浄した。減圧下で乾燥し、白色固体としてメチル(シクロペンタジエニル)(2,7-ジ-t-ブチルフルオレニル)(フェニル)メタン2.83gを得た。
窒素雰囲気下、100mLシュレンク管にメチル(シクロペンタジエニル)(2,7-ジ-t-ブチルフルオレニル)(フェニル)メタン1.50g(3.36mmol)、脱水トルエン50mLおよびTHF(テトラヒドロフラン)570μL(7.03mmol)を順次添加した。氷浴で冷却しながらn-ブチルリチウム/ヘキサン溶液(1.65M)4.20mL(6.93mmol)を徐々に添加し、45℃で5時間攪拌した。減圧下で溶媒を留去し、脱水ジエチルエーテル40mLを添加して赤色溶液とした。メタノール/ドライアイス浴で冷却しながら四塩化ジルコニウム728mg(3.12mmol)を添加し、室温まで徐々に昇温しながら16時間攪拌したところ、赤橙色スラリーが得られた。減圧下で溶媒を留去して得られた固体をグローブボックス内に持ち込み、ヘキサンで洗浄した後、ジクロロメタンで抽出した。減圧下で溶媒を留去して濃縮した後、少量のヘキサンを加え、-20℃で放置したところ赤橙色固体が析出した。この固体を少量のヘキサンで洗浄した後、減圧下で乾燥することにより、赤橙色固体として[メチルフェニルメチレン(η5-シクロペンタジエニル)(η5-2,7-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリド1.20gを得た。
[エチレン(η5-シクロペンタジエニル)(η5-2,7-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリドの合成
[エチレン(η5-シクロペンタジエニル)(η5-2,7-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリドは、特許第4367687号公報に記載の方法で合成した。
充分に窒素置換した内容積2Lのステンレス製オートクレーブにヘプタン760mlおよびプロピレン120gを装入し、系内の温度を150℃に昇温した後、水素0.85MPa、エチレン0.19MPaを供給することにより全圧を3MPaGとした。次に、トリイソブチルアルミニウム0.4mmol、[メチルフェニルメチレン(η5-シクロペンタジエニル)(η5-2,7-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリド0.0002mmolおよびN,N-ジメチルアニリニウムテトラキス(ペンタフルオロフェニル)ボレート0.002mmolを窒素で圧入し、撹拌回転数を400rpmにすることにより重合を開始した。その後、エチレンのみを連続的に供給することにより全圧を3MPaGに保ち、150℃で5分間重合を行った。少量のエタノールを系内に添加することにより重合を停止した後、未反応のエチレン、プロピレン、水素をパージした。得られたポリマー溶液を、0.2mol/Lの塩酸1000mlで3回、次いで蒸留水1000mlで3回洗浄し、硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られたポリマーを80℃の減圧下で10時間乾燥し、エチレン・プロピレン共重合体60.9gを得た。さらに、このエチレン・プロピレン共重合体に対して水添操作を施した。
<重合例2>
充分に窒素置換した内容積2Lのステンレス製オートクレーブにヘプタン710mLおよびプロピレン145gを装入し、系内の温度を150℃に昇温した後、水素0.40MPa、エチレン0.27MPaを供給することにより全圧を3MPaGとした。次にトリイソブチルアルミニウム0.4mmol、[メチルフェニルメチレン(η5-シクロペンタジエニル)(η5-2,7-ジ-t-ブチルフルオレニル)]ジルコニウムジクロリド0.0001mmolおよびN,N-ジメチルアニリニウムテトラキス(ペンタフルオロフェニル)ボレート0.001mmolを窒素で圧入し、攪拌回転数を400rpmにすることにより重合を開始した。その後、エチレンのみを連続的に供給することにより全圧を3MPaGに保ち、150℃で5分間重合を行った。少量のエタノールを系内に添加することにより重合を停止した後、未反応のエチレン、プロピレン、水素をパージした。得られたポリマー溶液を、0.2mol/lの塩酸1000mLで3回、次いで蒸留水1000mLで3回洗浄し、硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られたポリマーを80℃の減圧下で一晩乾燥し、エチレン・プロピレン共重合体52.2gを得た。さらに、このエチレン・プロピレン共重合体に対して水添操作を施した。
その他、特公平2-1163号公報、特公平2-7998号公報に記載されているのと同様にして、バナジウム化合物と有機アルミニウム化合物とを含むバナジウム系触媒を用いる方法にて得られたエチレン・プロピレン共重合体(A-2)、(A-4)、(A-5)を実施例で使用した。使用したエチレン・プロピレン共重合体(A-2)、(A-4)、(A-5)の分析結果を表1に示す。
エチレン・プロピレン共重合体(A-1)を95.5重量%、エチレン・プロピレン共重合体(A-3)を4.5重量%混合することで、エチレン・プロピレン共重合体(A-6)を得た。得られたエチレン・プロピレン共重合体(A-6)の分析結果を表1に示す。
エチレン・プロピレン共重合体(A-2)を94.3重量%、エチレン・プロピレン共重合体(A-4)を5.7重量%混合することで、エチレン・プロピレン共重合体(A-7)を得た。得られたエチレン・プロピレン共重合体(A-7)の分析結果を表1に示す。
エチレン・プロピレン共重合体(A-2)を91.4重量%、エチレン・プロピレン共重合体(A-4)を4.3重量%、エチレン・プロピレン共重合体(A-5)を4.3重量%混合することで、エチレン・プロピレン共重合体(A-8)を得た。得られたエチレン・プロピレン共重合体(A-8)の分析結果を表1に示す。
窒素吹込管、水冷コンデンサー、温度計、および無水マレイン酸供給装置、およびラジカル発生材供給装置を装着した攪拌機付反応装置に上記エチレン・プロピレン共重合体(A-6)~(A-8)のいずれかを仕込み、昇温し、後120℃にて窒素を反応装置に導入して系内の酸素をパージした後、系内を160℃に保温した。その後、無水マレイン酸 和光特級(富士フイルム和光純薬株式会社製、約70℃:液状)およびジ-t-ブチルパーオキサイド パーブチルD(日本油脂株式会社製)を所定の時間、所定速度、所定の攪拌速度下で反応装置に供給し、供給完了後、さらに反応装置内を1時間160℃に保持して、撹拌を継続した。次に、更に反応装置内を175℃に昇温し、系内脱圧後、減圧、窒素気流条件で不要成分(未反応の無水マレイン酸およびジ-t-ブチルパーオキサイドの分解物等)を除去した。
前記オレフィン重合体組成物製造の基本操作に従い、表2に開示した各種製造条件でエチレン・プロピレン酸変性物(B-1)~(B-10)の製造を行った。その結果を表2に示した。
前記エチレン・プロピレン共重合体酸変性物(B-7)95質量%と前記エチレン・プロピレン共重合体(A-6)5質量%とを均一に混合し、エチレン・プロピレン共重合体酸変性物(B-11)を得た。得られた前記エチレン・プロピレン共重合体酸変性物(B-1)の分析結果を表3に示す。
前記エチレン・プロピレン共重合体酸変性物(B-7)95質量%と前記エチレン・プロピレン共重合体(A-3)5質量%とを均一に混合し、エチレン・プロピレン共重合体酸変性物(B-12)を得た。得られた前記エチレン・プロピレン共重合体酸変性物(B-12)の分析結果を表3に示す。
前記エチレン・プロピレン共重合体酸変性物(B-10)80質量%と前記エチレン・プロピレン共重合体(A-6)20質量%とを均一に混合し、エチレン・プロピレン共重合体酸変性物(B-13)を得た。得られた前記エチレン・プロピレン共重合体酸変性物(B-13)の分析結果を表3に示す。
[実施例1]
500mLの攪拌器付き丸底フラスコにエチレン・プロピレン共重合体酸変性物(B-1)を41.6g、ポリオキシエチレンアルキルエーテル エマルゲン1108(花王株式会社製)を10.4g取り、攪拌速度50rpmで攪拌しながら、96℃まで昇温した。次に、モルホリン 鹿1級(関東化学株式会社製)7.5g、純水10.0gを混ぜた溶液を加え、攪拌速度を250rpmとして30分間反応させた。続いて97℃の熱水134gを投入し、攪拌速度を500rpmとして、60分間攪拌した後、攪拌速度250rpmで30分間放冷することで水分散体組成物を得た。得られた水分散体組成物は以下の方法に従い、安定性、粘度、平均粒径を評価した。得られた水分散体組成物の分析結果を表4に示す。
実施例1から、使用するエチレン・プロピレン共重合体酸変性物を表4に示した内容に変更した以外は実施例1と同様の方法にて水分散体組成物を得た。得られた水分散体組成物の分析結果を表4に示す。
実施例1から、使用するエチレン・プロピレン共重合体酸変性物を表4に示した内容に変更した以外は実施例1と同様の方法にて水分散体組成物を得た。得られた水分散体組成物の安定性を評価した結果、分離が生じたことから、粘度および平均粒径は測定できなかった。
〔水分散体組成物の安定性〕
水分散体組成物の安定性は、縦120mm、直径40mmの透明な円筒形ガラス容器に水分散体組成物を入れ、23℃で15時間静置した後の分離有無を目視にて観察し評価した。ガラス容器中の水分散体組成物の濁り状態が均一なものを分離無し、高さ方向で濁り状態に差異が見られるものを、分離有りとして評価した。
水分散体組成物の粘度は、B型粘度計 TVB-10M(東機産業株式会社製)を用い、23℃での粘度を測定した。測定には、水分散体組成物の安定性を評価した試料をそのまま用いた。
水分散体組成物の平均粒径は、ナノトラックWAVE2-EX150(MicrotracBEL社製)を用いて測定した。測定には、水分散体組成物の安定性を評価した試料から1gポリプロピレン製のカップに図りとり、純粋10gで希釈して測定した。得られた測定結果から、全体積を100%としたときの累積体積が50%時の粒子の直径を平均粒径とした。
Claims (9)
- 以下の(A1)~(A6)を満たすエチレン・α-オレフィン共重合体(A)の酸変性体であり、以下の(B1)~(B5)を満たすエチレン・α-オレフィン共重合体酸変性体(B)を、0.01~50質量%の範囲で含有することを特徴とする水分散体組成物。
(A1)エチレン単位の含有率が30~85モル%の範囲にある。
(A2)100℃における動粘度が10~5,000mm2/sの範囲にある。
(A3)ゲルパーミエーションクロマトグラフィー(GPC)により測定し、ポリスチレン換算により得られた重量平均分子量が、1,000~50,000の範囲にある。
(A4)ゲルパーミエーションクロマトグラフィー(GPC)により測定し、ポリスチレン換算により得られた分子量において、分子量分布(Mw/Mn)が、2.5以下である。
(A5)下記式[1]で表されるB値が1.1以上である。
(A6)1H-NMRにより測定した不飽和結合量が炭素原子1000個あたり0.5個未満である。
(B1)酸価が1~300mgKOH/gの範囲にある。
(B2)150℃における見かけ粘度が1~1,000cPsの範囲にある。
(B3)ゲルパーミエーションクロマトグラフィー(GPC)により測定し、ポリスチレン換算により得られた重量平均分子量が、1,000~50,000の範囲にある。
(B4)ゲルパーミエーションクロマトグラフィー(GPC)により測定し、ポリスチレン換算により得られた分子量において、分子量分布(Mw/Mn)が、2.5以下である。
(B5)高速液体クロマトグラフィー(HPLC)により測定される未反応分子の重量分率が、59%以下である。 - 前記酸変性体(B)が、以下の(B6)を満たすことを特徴とする請求項1に記載の水分散体組成物。
(B6)酸変性体(B)中に含まれる未反応分子の内、ゲルパーミエーションクロマトグラフィー(GPC)により測定し、ポリスチレン換算により得られた酸変性体(B)の重量平均分子量よりも分子量の高い未反応分子の重量分率が20%以下である。 - 前記酸変性体(B)が、前記エチレン・α-オレフィン共重合体(A)を、マレイン酸および無水マレイン酸から選択される少なくとも1種により変性してなる共重合体である請求項1または2に記載の水分散体組成物。
- 水分散体組成物の粘度が15mPa・s以上である請求項1~3のいずれか1項に記載の水分散体組成物。
- 水分散体組成物の平均粒径が100nm以下である請求項1~4のいずれか1項に記載の水分散体組成物。
- 請求項1~5のいずれか1項に記載の水分散体組成物の製造方法。
- 以下の(A1)~(A6)を満たすエチレン・α-オレフィン共重合体(A)の酸変性物であり、以下の(B1)~(B5)を満たすことを特徴とするエチレン・α-オレフィン共重合体酸変性物(B)。
(A1)エチレン単位の含有率が30~85モル%の範囲にある。
(A2)100℃における動粘度が10~5,000mm2/sの範囲にある。
(A3)ゲルパーミエーションクロマトグラフィー(GPC)により測定し、ポリスチレン換算により得られた重量平均分子量が、1,000~50,000の範囲にある。
(A4)ゲルパーミエーションクロマトグラフィー(GPC)により測定し、ポリスチレン換算により得られた分子量において、分子量分布(Mw/Mn)が、2.5以下である。
(A5)下記式[1]で表されるB値が1.1以上である。
(A6)1H-NMRにより測定した不飽和結合量が炭素原子1000個あたり0.5個未満である。
(B1)酸価が1~300mgKOH/gの範囲にある。
(B2)150℃における見かけ粘度が1~1,000cPsの範囲にある。
(B3)ゲルパーミエーションクロマトグラフィー(GPC)により測定し、ポリスチレン換算により得られた重量平均分子量が、1,000~50,000の範囲にある。
(B4)ゲルパーミエーションクロマトグラフィー(GPC)により測定し、ポリスチレン換算により得られた分子量において、分子量分布(Mw/Mn)が、2.5以下である。
(B5)高速液体クロマトグラフィー(HPLC)により測定される未反応分子の重量分率が、65%以下である。 - 以下の(B6)を満たすことを特徴とする請求項7に記載のエチレン・α-オレフィン共重合体酸変性物(B)。
(B6)エチレン-α-オレフィン共重合体酸変性物(B)中に含まれる未反応分子の内、ゲルパーミエーションクロマトグラフィー(GPC)により測定し、ポリスチレン換算により得られたエチレン・α-オレフィン共重合体酸変性物(B)の重量平均分子量よりも分子量の高い未反応分子の重量分率が20%以下である。 - 前記エチレン・α-オレフィン共重合体(A)を、マレイン酸および無水マレイン酸から選択される少なくとも1種により変性してなる共重合体である請求項7または8に記載のエチレン・α-オレフィン共重合体酸変性物(B)。
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- 2022-01-18 EP EP22739531.6A patent/EP4279547A1/en active Pending
- 2022-01-18 CN CN202280010339.2A patent/CN116829642A/zh active Pending
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