JP6749843B2 - ポリラクチドをベースにした組成物 - Google Patents
ポリラクチドをベースにした組成物 Download PDFInfo
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- JP6749843B2 JP6749843B2 JP2016563431A JP2016563431A JP6749843B2 JP 6749843 B2 JP6749843 B2 JP 6749843B2 JP 2016563431 A JP2016563431 A JP 2016563431A JP 2016563431 A JP2016563431 A JP 2016563431A JP 6749843 B2 JP6749843 B2 JP 6749843B2
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- composition
- lactide
- polymer
- poly
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims description 246
- 229920000747 poly(lactic acid) Polymers 0.000 title description 78
- 229920001400 block copolymer Polymers 0.000 claims description 134
- 229920002857 polybutadiene Polymers 0.000 claims description 117
- 239000005062 Polybutadiene Substances 0.000 claims description 116
- 229920000642 polymer Polymers 0.000 claims description 113
- 229920001432 poly(L-lactide) Polymers 0.000 claims description 52
- 238000000034 method Methods 0.000 claims description 36
- 229920001577 copolymer Polymers 0.000 claims description 21
- 238000002156 mixing Methods 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 10
- 229920000359 diblock copolymer Polymers 0.000 claims description 8
- 229920000428 triblock copolymer Polymers 0.000 claims description 6
- 238000000071 blow moulding Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000010094 polymer processing Methods 0.000 claims description 5
- 238000001175 rotational moulding Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 4
- 238000003856 thermoforming Methods 0.000 claims description 4
- 238000010097 foam moulding Methods 0.000 claims description 3
- 239000004626 polylactic acid Substances 0.000 description 43
- 125000000217 alkyl group Chemical group 0.000 description 24
- -1 poly(ethylene glycol) Polymers 0.000 description 23
- 125000004432 carbon atom Chemical group C* 0.000 description 22
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 22
- 239000004609 Impact Modifier Substances 0.000 description 20
- JJTUDXZGHPGLLC-IMJSIDKUSA-N 4511-42-6 Chemical compound C[C@@H]1OC(=O)[C@H](C)OC1=O JJTUDXZGHPGLLC-IMJSIDKUSA-N 0.000 description 19
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 19
- 125000003118 aryl group Chemical group 0.000 description 18
- JJTUDXZGHPGLLC-UHFFFAOYSA-N lactide Chemical compound CC1OC(=O)C(C)OC1=O JJTUDXZGHPGLLC-UHFFFAOYSA-N 0.000 description 16
- 239000000178 monomer Substances 0.000 description 14
- JVTAAEKCZFNVCJ-REOHCLBHSA-N L-lactic acid Chemical compound C[C@H](O)C(O)=O JVTAAEKCZFNVCJ-REOHCLBHSA-N 0.000 description 12
- 239000004310 lactic acid Substances 0.000 description 11
- 235000014655 lactic acid Nutrition 0.000 description 11
- JJTUDXZGHPGLLC-ZXZARUISSA-N (3r,6s)-3,6-dimethyl-1,4-dioxane-2,5-dione Chemical compound C[C@H]1OC(=O)[C@H](C)OC1=O JJTUDXZGHPGLLC-ZXZARUISSA-N 0.000 description 10
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- 125000004122 cyclic group Chemical group 0.000 description 9
- 239000003054 catalyst Substances 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 7
- 239000003999 initiator Substances 0.000 description 7
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- ZFOZVQLOBQUTQQ-UHFFFAOYSA-N Tributyl citrate Chemical compound CCCCOC(=O)CC(O)(C(=O)OCCCC)CC(=O)OCCCC ZFOZVQLOBQUTQQ-UHFFFAOYSA-N 0.000 description 6
- 150000001298 alcohols Chemical class 0.000 description 6
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- 125000003545 alkoxy group Chemical group 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 125000000753 cycloalkyl group Chemical group 0.000 description 5
- 229940022769 d- lactic acid Drugs 0.000 description 5
- 229910052736 halogen Inorganic materials 0.000 description 5
- 150000002367 halogens Chemical class 0.000 description 5
- 239000000463 material Substances 0.000 description 5
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- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 4
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
- 238000005481 NMR spectroscopy Methods 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 125000000732 arylene group Chemical group 0.000 description 4
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 125000002993 cycloalkylene group Chemical group 0.000 description 4
- 150000004985 diamines Chemical class 0.000 description 4
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- 238000006911 enzymatic reaction Methods 0.000 description 4
- 235000013305 food Nutrition 0.000 description 4
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- QZCLKYGREBVARF-UHFFFAOYSA-N Acetyl tributyl citrate Chemical compound CCCCOC(=O)CC(C(=O)OCCCC)(OC(C)=O)CC(=O)OCCCC QZCLKYGREBVARF-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
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- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
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- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- BTANRVKWQNVYAZ-UHFFFAOYSA-N butan-2-ol Chemical compound CCC(C)O BTANRVKWQNVYAZ-UHFFFAOYSA-N 0.000 description 3
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000007334 copolymerization reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 3
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 3
- 239000012948 isocyanate Substances 0.000 description 3
- 125000003253 isopropoxy group Chemical group [H]C([H])([H])C([H])(O*)C([H])([H])[H] 0.000 description 3
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 3
- 238000010128 melt processing Methods 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 3
- 229910052718 tin Inorganic materials 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 125000003161 (C1-C6) alkylene group Chemical group 0.000 description 2
- JRHWHSJDIILJAT-UHFFFAOYSA-N 2-hydroxypentanoic acid Chemical compound CCCC(O)C(O)=O JRHWHSJDIILJAT-UHFFFAOYSA-N 0.000 description 2
- HBAQYPYDRFILMT-UHFFFAOYSA-N 8-[3-(1-cyclopropylpyrazol-4-yl)-1H-pyrazolo[4,3-d]pyrimidin-5-yl]-3-methyl-3,8-diazabicyclo[3.2.1]octan-2-one Chemical class C1(CC1)N1N=CC(=C1)C1=NNC2=C1N=C(N=C2)N1C2C(N(CC1CC2)C)=O HBAQYPYDRFILMT-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- LCTONWCANYUPML-UHFFFAOYSA-N Pyruvic acid Chemical compound CC(=O)C(O)=O LCTONWCANYUPML-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 2
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- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 2
- 125000002947 alkylene group Chemical group 0.000 description 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- UKJLNMAFNRKWGR-UHFFFAOYSA-N cyclohexatrienamine Chemical group NC1=CC=C=C[CH]1 UKJLNMAFNRKWGR-UHFFFAOYSA-N 0.000 description 2
- XXKOQQBKBHUATC-UHFFFAOYSA-N cyclohexylmethylcyclohexane Chemical compound C1CCCCC1CC1CCCCC1 XXKOQQBKBHUATC-UHFFFAOYSA-N 0.000 description 2
- 125000002704 decyl 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])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- CZZYITDELCSZES-UHFFFAOYSA-N diphenylmethane Chemical compound C=1C=CC=CC=1CC1=CC=CC=C1 CZZYITDELCSZES-UHFFFAOYSA-N 0.000 description 2
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- 125000000524 functional group Chemical group 0.000 description 2
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 2
- 125000001183 hydrocarbyl group Chemical group 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
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- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
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- 235000021536 Sugar beet Nutrition 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229920003232 aliphatic polyester Polymers 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229940058905 antimony compound for treatment of leishmaniasis and trypanosomiasis Drugs 0.000 description 1
- 150000001463 antimony compounds Chemical class 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 125000001204 arachidyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004104 aryloxy group Chemical group 0.000 description 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Substances C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- 235000019445 benzyl alcohol Nutrition 0.000 description 1
- 125000002619 bicyclic group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000002529 biphenylenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C12)* 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 125000001246 bromo group Chemical group Br* 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- SHZIWNPUGXLXDT-UHFFFAOYSA-N caproic acid ethyl ester Natural products CCCCCC(=O)OCC SHZIWNPUGXLXDT-UHFFFAOYSA-N 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 229910052798 chalcogen Inorganic materials 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000005515 coenzyme Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 125000006165 cyclic alkyl group Chemical group 0.000 description 1
- 125000001995 cyclobutyl group Chemical group [H]C1([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- VKIRRGRTJUUZHS-UHFFFAOYSA-N cyclohexane-1,4-diamine Chemical compound NC1CCC(N)CC1 VKIRRGRTJUUZHS-UHFFFAOYSA-N 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 125000001559 cyclopropyl group Chemical group [H]C1([H])C([H])([H])C1([H])* 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- 238000001938 differential scanning calorimetry curve Methods 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 125000003438 dodecyl 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])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- UNXHWFMMPAWVPI-ZXZARUISSA-N erythritol Chemical compound OC[C@H](O)[C@H](O)CO UNXHWFMMPAWVPI-ZXZARUISSA-N 0.000 description 1
- 229940009714 erythritol Drugs 0.000 description 1
- 235000019414 erythritol Nutrition 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 235000013611 frozen food Nutrition 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 1
- 238000005227 gel permeation chromatography Methods 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 150000004820 halides Chemical group 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 1
- 125000003707 hexyloxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 239000012456 homogeneous solution Substances 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 125000002346 iodo group Chemical group I* 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 125000001261 isocyanato group Chemical group *N=C=O 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 125000002960 margaryl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 150000005673 monoalkenes Chemical class 0.000 description 1
- 125000002950 monocyclic group Chemical group 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 125000001421 myristyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004957 naphthylene group Chemical group 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229940101270 nicotinamide adenine dinucleotide (nad) Drugs 0.000 description 1
- 125000001196 nonadecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- QYZLKGVUSQXAMU-UHFFFAOYSA-N penta-1,4-diene Chemical compound C=CCC=C QYZLKGVUSQXAMU-UHFFFAOYSA-N 0.000 description 1
- 125000002958 pentadecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 1
- 230000010399 physical interaction Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229910052696 pnictogen Inorganic materials 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920000166 polytrimethylene carbonate Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- RLJWTAURUFQFJP-UHFFFAOYSA-N propan-2-ol;titanium Chemical compound [Ti].CC(C)O.CC(C)O.CC(C)O.CC(C)O RLJWTAURUFQFJP-UHFFFAOYSA-N 0.000 description 1
- ZGSOBQAJAUGRBK-UHFFFAOYSA-N propan-2-olate;zirconium(4+) Chemical compound [Zr+4].CC(C)[O-].CC(C)[O-].CC(C)[O-].CC(C)[O-] ZGSOBQAJAUGRBK-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229940076788 pyruvate Drugs 0.000 description 1
- 229940107700 pyruvic acid Drugs 0.000 description 1
- 230000006340 racemization Effects 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 239000000565 sealant Substances 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
- 239000004065 semiconductor Substances 0.000 description 1
- 229920006300 shrink film Polymers 0.000 description 1
- 235000011888 snacks Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229920006302 stretch film Polymers 0.000 description 1
- 229920006132 styrene block copolymer Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- VXUYXOFXAQZZMF-UHFFFAOYSA-N tetraisopropyl titanate Substances CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 1
- 229910052716 thallium Inorganic materials 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 150000003606 tin compounds Chemical class 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- 125000002889 tridecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- YFHICDDUDORKJB-UHFFFAOYSA-N trimethylene carbonate Chemical compound O=C1OCCCO1 YFHICDDUDORKJB-UHFFFAOYSA-N 0.000 description 1
- 125000002948 undecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- 150000003755 zirconium compounds Chemical class 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
- C08G63/08—Lactones or lactides
-
- 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
- C08J3/005—Processes for mixing polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
-
- 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
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
-
- 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
- C08J2453/00—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Biological Depolymerization Polymers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
Description
(a)ポリラクチド−ポリブタジエン(PLA−PB)ブロック共重合体、ポリラクチド−ウレタンポリブタジエンブロック共重合体またはこれらの混合物の中から選択される少なくとも1種の第1ポリマー、
(b)ポリラクチド、ポリラクチド−ウレタンまたはこれらの混合物の中から選択される少なくとも1種の第2ポリマー。
基または基の一部として使用する「ヒドロキシル」または「ヒドロキシ」という用語は基−OHを意味する。
明細書中で使用される上記およびその他の用語は当業者に容易に理解できる。
(a)ポリラクチド−ポリブタジエン(PLA−PB)ブロック共重合体、ポリラクチド−ウレタンポリブタジエンブロック共重合体またはこれらの混合物の中から選択される少なくとも1種の第1ポリマー、
(b)ポリラクチド、ポリラクチド−ウレタンまたはこれらの混合物の中から選択される少なくとも1種の第2ポリマー。
(a)ポリラクチド−ポリブタジエン(PLA−PB)ブロック共重合体、ポリラクチド−ウレタンポリブタジエンブロック共重合体またはこれらの混合物の中から選択される少なくとも1種の第1ポリマーと、
(b)ポリラクチド、ポリラクチド−ウレタン、又はこれらの混合物の中から選択される少なくとも1種の第2ポリマーと
を含む組成物であって、第1ポリマーを組成物の総重量に対して20重量%〜50重量%、第2ポリマーを組成物の総重量に対して50重量%〜80重量%含む組成物。
(3)少なくとも1種の第1ポリマーがポリラクチド−ポリブタジエン(PLA−PB)ブロック共重合体と、ポリ乳酸の中から選択される少なくとも1種の第2ポリマーとを含む特徴事項1または2に記載の組成物。
(4)少なくとも1種の第1ポリマーがポリ−L−ラクチド−ポリブタジエン(PLLA−PB)ブロック共重合体で、少なくとも1種の第2ポリマーがポリ−L−ラクチドの中から選択される特徴事項1〜3のいずれか一項に記載の組成物。
(6)第1ポリマーを組成物の総重量に対して1重量%〜60重量%含み、好ましくは、第1ポリマーを組成物の総重量に対して2重量%〜55重量%含む特徴事項1〜5のいずれか一項に記載の組成物。
(7)第2ポリマーを組成物の総重量に対して40重量%〜99重量%含む特徴事項1、3〜6のいずれか一項に記載の組成物。
(8)ポリラクチド−ポリブタジエンブロック共重合体を組成物の総重量に対して1重量%〜60重量%含み、組成物の総重量に対して第2ポリマー(b)を40重量%〜99重量%含む特徴事項1、3〜7のいずれか一項に記載の組成物。
(10)少なくとも1種の第1ポリマーと少なくとも一種の第2ポリマーとを溶融ブレンドして得られることを特徴とする特徴事項1〜9のいずれか一項に記載の組成物。
(11)ポリラクチド−ポリブタジエンブロック共重合体を組成物の総重量に対して25重量%〜50重量%含み、第2ポリマー(b)を組成物の総重量に対して50重量%〜75重量%含む特徴事項1〜10のいずれか一項に記載の組成物。
(12)ポリラクチド−ポリブタジエンブロック共重合体を組成物の総重量に対して25重量%〜50重量%含み、ポリラクチド(b)を組成物の総重量に対して50重量%〜75重量%含む特徴事項1〜11のいずれか一項に記載の組成物。
(14)ポリラクチド−ポリブタジエン(PLA−PB)ブロック共重合体、ポリラクチド−ウレタンポリブタジエンブロック共重合体またはこれらの混合物の中から選択される少なくとも一つの第1ポリマー(a)をポリラクチド、ポリラクチド−ウレタン、又はこれらの混合物の中から選択される少なくとも1種の第2ポリマー(b)と接触させる工程を含み、第1ポリマーを組成物の総重量に対して20重量%〜50重量%とし、第2ポリマーを組成物の総重量に対して50重量%〜80重量%にする特徴事項1〜12のいずれか一項に記載の組成物の製造方法。
(16)溶融ブレンドを160℃〜230℃の範囲の温度、好ましくは160℃〜200℃の範囲の温度で行う特徴事項13〜15のいずれか一項に記載の方法。
(17)ポリラクチド−ポリブタジエン(PLA−PB)ブロック共重合体とポリラクチドを含む混合物を溶融加工する特徴事項13〜16のいずれか一項に記載の方法。
(18)25重量%〜50重量%のポリラクチド−ポリブタジエンブロック共重合体と50重量%〜75重量%のポリラクチドとを溶融ブレンドする特徴事項13〜17のいずれか一項に記載の方法。
(20)特徴事項1〜12のいずれか一項に記載の組成物または特徴事項13〜19のいずれか一項に記載の方法を用いて得られる組成物を成形して得られる物品。
(21)ポリラクチド−ポリブタジエン(PLA−PB)ブロック共重合体、ポリラクチド−ウレタンポリブタジエンブロック共重合体またはこれらの混合物の衝撃改質剤としての使用。
(a)ポリラクチド−ポリブタジエン(PLA−PB)ブロック共重合体、ポリラクチド−ウレタンポリブタジエンブロック共重合体またはこれらの混合物の中から選択される少なくとも1種の第1ポリマー、
(b)ポリラクチド、ポリラクチド−ウレタン、又はこれらの混合物の中から選択される少なくとも1種の第2ポリマー。
好ましい実施形態では、上記組成物は組成物の総重量に対して20重量%〜50重量%の第1ポリマーと、組成物の総重量に対して50重量%〜80重量%の第2ポリマーを含む。
(a)ポリラクチド−ポリブタジエン(PLA−PB)ブロック共重合体と、
(b)ポリラクチド、ポリラクチド−ウレタンまたはこれらの混合物の中から選択される少なくとも1種の第2ポリマー。
(a1)ポリ−L−ラクチド−ポリブタジエン(PLLA−PB)ブロック共重合体、ポリ−D−ラクチド−ポリブタジエン(PDLA−PB)ブロック共重合体、ポリDL−ラクチド−ポリブタジエン、(PDLLA−PB)ブロック共重合体、ポリ(メソ)−ラクチド−ポリブタジエンブロックコポリマー、ポリ−L−ラクチド−ウレタン−ポリブタジエン(PLLA−PB)ブロック共重合体、ポリ−D−ラクチド−ウレタン−ポリブタジエン(PDLA−PB)ブロック共重合体、ポリDL−ラクチド−ウレタン、ポリブタジエン
(PDLLA−PB)ブロック共重合体、ポリ(メソ)−ラクチド−ウレタン−ポリブタジエンブロック共重合体およびこれらの混合物から成る群の中から選択される少なくとも1種の第1ポリマー、
(b1)ポリ−L−ラクチド、ポリ−D−ラクチド、ポリ−DL−ラクチド、ポリ−メソ−ラクチドおよびこれらの混合物を含む群の中から選択される少なくとも1種の第2ポリマー。
R10−OH (IV)
(ここで、R10はC1-20アルキル、C6-30アリールおよびC6-30アリールC1-20アルキルからなる群の中から選択され、これらは必要に応じてハロゲン、ヒドロキシル、およびC1-6アルキルからなる群の中から選択される1つまたは複数の置換基で置換されていてもよい)
好ましくは、R10はC3-12アルキル、C6-10アリールおよびC6-10アリールC3-12アルキルの中から選択され、これらは独立してハロゲン、ヒドロキシルおよびC1-6アルキルからなる群の中から選択される1つまたは複数の置換基で置換されていてもよい。好ましくは、R10はC3-12アルキル、C6-10アリールおよびC6-10アリールC3-12アルキルの中から選択され、これらは独立してハロゲン、ヒドロキシルおよびC1-4アルキルからなる群の中から選択される1つまたは複数の置換基で置換されていてもよい。
開始剤はアルコールにすることができる。このアルコールはジオール、トリオールまたはより高官能の多価アルコールのポリオールすることができる。アルコールはバイオマス、例えばグリセロールまたはプロパンジオールまたは他の糖ベースのアルコール、例えばエリトリトールから誘導することができる。アルコールは単独または他のアルコールと組み合わせて使用できる。
の。例えば、第1ポリマーと第2ポリマーを例えばバッチミキサー、連続ミキサー、一軸スクリュー押出機または二軸スクリュー押出機に導入して均質な混合物または溶液を形成し、第1ポリマー成分と第2ポリマー成分を混合し、化学的および物理的な相互作用を開始できる温度条件にすることで溶融ブレンドを実施することができる。
ポリ−L−ラクチド−ポリブタジエン(PLLA−PB)ブロック共重合体の製造
PLLA−PB−PLLAブロックコポリマーは、L−ラクチドとヒドロキシ末端ポリブタジエン(HSC Cray Valley Corp社のKraso(登録商標)BLBH10000)とを共重合体を製造するための触媒の存在下でバルクで反応させて製造した。Kraso(登録商標)BLBH10000は以下の特性を有する:微細構造:1、2−(ビニル):約65重量%、1、4−シス:約18重量%、1、4−トランス:約17重量%。OH基の含有量:0.16〜0.22(Mmol/g)、水酸基数:8.9〜12.4Mg KOH/g、ブルックフィールド粘度:50℃で20〜50Pa・秒、密度:20℃、約0.9g/cm3、分子量(Mn):9000〜11000g/mo、多分散性指数(Mw/Mn):1.1。光学純度が99.5%のFuterroの精製L−ラクチドを使用した。ヒドロキシポリブタジエン(7.78g)とL−ラクチド(8.0g)を透明な混合物が得られるまでN2下で185℃に加熱した。Sn(Oct)2(112mg)を加えた。重合は30分間実施し、生成物(ブロック共重合体1)はエタノール中で沈殿させた。
実施例1で製造したPLLA−PB−PLLAブロックコポリマー1にPLLA(Synbra Technolgy b.v社のSynterra(登録商標)PLLA2010)をブレンドして本発明の実施例の組成物1と組成物2を製造した。Synterra(登録商標)PLLA2010の物理的特性は[表2]に示した。比較組成物3は実施例1で製造したPLLA−PB−PLLAブロック共重合体1をPLLA(Synterra Technolgy b.v社のSynterra2010)とブレンドして製造した。比較組成物4は純粋なPLLA(Synterra Technolgy b.v社のSynterra(登録商標)PLLA2010)から成る。
組成物2は(Haake)逆回転ツインスクリューミニ押出機で、190℃、50rpm、滞留時間=5分間で溶融ブレンドした。
組成物3は(Haake)逆回転ツインスクリューミニ押出機で、4バール、200℃、100rpm、滞留時間=3分、5回のパスで溶融ブレンドした。
組成物4は(Haake)逆回転ツインスクリューミニ押出機で、190℃、50rpm、滞留時間=5分で溶融ブレンドした。
Claims (12)
- 下記(a)と(b):
(a)ポリ−L−ラクチド−ポリブタジエン(PLLA−PB)ブロック共重合体である第1ポリマーと、
(b)ポリ−L−ラクチドである第2ポリマーと、
を含む組成物であって、
第1ポリマーを組成物の総重量に対して20〜50重量%含み、第2ポリマーを組成物の総重量に対して50〜80重量%含むことを特徴とする組成物。 - ポリ−L−ラクチド−ポリブタジエン(PLLA−PB)ブロック共重合体が、PLLA−PBジブロック共重合体、PLLA−PB−PLLAトリブロックコポリマー、PLLA−PBマルチブロック共重合体、PLLA−PBスターコポリマー、PLLA−PB櫛形共重合体、PLLA−PB勾配ブロック共重合体およびこれらの混合物からなる群の中から選択される請求項1に記載の組成物。
- 少なくとも1種の第1ポリマーと少なくとも1種の第2ポリマーとを溶融ブレンドして得られる請求項1または2に記載の組成物。
- 組成物の総重量に対して25重量%〜50重量%のポリ−L−ラクチド−ポリブタジエンブロック共重合体と、組成物の総重量に対して50重量%〜75重量%の第2ポリマーとを含む請求項1〜3のいずれか一項に記載の組成物。
- 組成物の総重量に対して25重量%〜50重量%のポリ−L−ラクチド−ポリブタジエンブロック共重合体と、組成物の総重量に対して50重量%〜75重量%のポリ−L−ラクチドとを含む請求項1〜4のいずれか一項に記載の組成物。
- ポリ−L−ラクチド−ポリブタジエン(PLLA−PB)ブロック共重合体である第1ポリマー(a)と、ポリ−L−ラクチドである第2ポリマー(b)とを接触する工程を含み、その際に第1ポリマーは組成物の総重量に対して20重量%〜50重量%とし、第2ポリマーは組成物の総重量に対して50重量%〜80重量%とすることを特徴とする請求項1〜5のいずれか一項に記載の組成物の製造方法。
- 上記接触工程が第1ポリマーと第2ポリマーとを溶融ブレンドすることから成る請求項6に記載の方法。
- 160℃〜230℃の範囲の温度で溶融ブレンドする請求項6または7に記載の方法。
- ポリ−L−ラクチド−ポリブタジエン(PLLA−PB)ブロック共重合体とポリ−L−ラクチドとから成る混合物を溶融ブレンドする請求項6〜8のいずれか一項に記載の方法。
- 25重量%〜50重量%のポリ−L−ラクチド−ポリブタジエンブロック共重合体と、50重量%〜75重量%のポリ−L−ラクチドとを溶融ブレンドする請求項6〜9のいずれか一項に記載の方法。
- フィルム、シート、パイプ形および繊維への押出し成形または共押出し成形、ブロー成形、射出成形、回転成形、発泡成形、熱成形の中から選択される1つまたは複数のポリマー加工技術を用いて上記組成物を加工する請求項6〜10のいずれか一項に記載の方法。
- 請求項1〜5のいずれか一項に記載の組成物または請求項6〜11のいずれか一項に記載の方法を用いて得られる物品。
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