WO2016002192A1 - 反射材用樹脂組成物およびそれを含む反射板 - Google Patents
反射材用樹脂組成物およびそれを含む反射板 Download PDFInfo
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- WO2016002192A1 WO2016002192A1 PCT/JP2015/003259 JP2015003259W WO2016002192A1 WO 2016002192 A1 WO2016002192 A1 WO 2016002192A1 JP 2015003259 W JP2015003259 W JP 2015003259W WO 2016002192 A1 WO2016002192 A1 WO 2016002192A1
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000004113 Sepiolite Substances 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000003917 TEM image Methods 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910000004 White lead Inorganic materials 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- GKXVJHDEWHKBFH-UHFFFAOYSA-N [2-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=CC=C1CN GKXVJHDEWHKBFH-UHFFFAOYSA-N 0.000 description 1
- AYVGBNGTBQLJBG-UHFFFAOYSA-N [3-(hydroxymethyl)cyclopentyl]methanol Chemical compound OCC1CCC(CO)C1 AYVGBNGTBQLJBG-UHFFFAOYSA-N 0.000 description 1
- HXXPOZXBLAGNLP-UHFFFAOYSA-N [4-(hydroxymethyl)cycloheptyl]methanol Chemical compound OCC1CCCC(CO)CC1 HXXPOZXBLAGNLP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- OJMOMXZKOWKUTA-UHFFFAOYSA-N aluminum;borate Chemical compound [Al+3].[O-]B([O-])[O-] OJMOMXZKOWKUTA-UHFFFAOYSA-N 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- 150000008366 benzophenones Chemical class 0.000 description 1
- 150000001565 benzotriazoles Chemical class 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- PMMYEEVYMWASQN-IMJSIDKUSA-N cis-4-Hydroxy-L-proline Chemical compound O[C@@H]1CN[C@H](C(O)=O)C1 PMMYEEVYMWASQN-IMJSIDKUSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- VZFUCHSFHOYXIS-UHFFFAOYSA-N cycloheptane carboxylic acid Natural products OC(=O)C1CCCCCC1 VZFUCHSFHOYXIS-UHFFFAOYSA-N 0.000 description 1
- YMHQVDAATAEZLO-UHFFFAOYSA-N cyclohexane-1,1-diamine Chemical compound NC1(N)CCCCC1 YMHQVDAATAEZLO-UHFFFAOYSA-N 0.000 description 1
- NUUPJBRGQCEZSI-UHFFFAOYSA-N cyclopentane-1,3-diol Chemical compound OC1CCC(O)C1 NUUPJBRGQCEZSI-UHFFFAOYSA-N 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- QFTYSVGGYOXFRQ-UHFFFAOYSA-N dodecane-1,12-diamine Chemical compound NCCCCCCCCCCCCN QFTYSVGGYOXFRQ-UHFFFAOYSA-N 0.000 description 1
- GHLKSLMMWAKNBM-UHFFFAOYSA-N dodecane-1,12-diol Chemical compound OCCCCCCCCCCCCO GHLKSLMMWAKNBM-UHFFFAOYSA-N 0.000 description 1
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000006081 fluorescent whitening agent Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- MHIBEGOZTWERHF-UHFFFAOYSA-N heptane-1,1-diol Chemical compound CCCCCCC(O)O MHIBEGOZTWERHF-UHFFFAOYSA-N 0.000 description 1
- PWSKHLMYTZNYKO-UHFFFAOYSA-N heptane-1,7-diamine Chemical compound NCCCCCCCN PWSKHLMYTZNYKO-UHFFFAOYSA-N 0.000 description 1
- VLKZOEOYAKHREP-UHFFFAOYSA-N hexane Substances CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 1
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 150000002497 iodine compounds Chemical class 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 description 1
- 235000020778 linoleic acid Nutrition 0.000 description 1
- 229940018564 m-phenylenediamine Drugs 0.000 description 1
- 229940097364 magnesium acetate tetrahydrate Drugs 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- XKPKPGCRSHFTKM-UHFFFAOYSA-L magnesium;diacetate;tetrahydrate Chemical compound O.O.O.O.[Mg+2].CC([O-])=O.CC([O-])=O XKPKPGCRSHFTKM-UHFFFAOYSA-L 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- ZWLPBLYKEWSWPD-UHFFFAOYSA-N o-toluic acid Chemical compound CC1=CC=CC=C1C(O)=O ZWLPBLYKEWSWPD-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 229960002446 octanoic acid Drugs 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 235000021313 oleic acid Nutrition 0.000 description 1
- 125000005740 oxycarbonyl group Chemical group [*:1]OC([*:2])=O 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229960003424 phenylacetic acid Drugs 0.000 description 1
- 239000003279 phenylacetic acid Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- 150000007519 polyprotic acids Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052624 sepiolite Inorganic materials 0.000 description 1
- 235000019355 sepiolite Nutrition 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
- CFUDQABJYSJIQY-UHFFFAOYSA-N triethoxy-[2-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CC(C)OCC1CO1 CFUDQABJYSJIQY-UHFFFAOYSA-N 0.000 description 1
- KLNPWTHGTVSSEU-UHFFFAOYSA-N undecane-1,11-diamine Chemical compound NCCCCCCCCCCCN KLNPWTHGTVSSEU-UHFFFAOYSA-N 0.000 description 1
- 229940005605 valeric acid Drugs 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
- 229960001763 zinc sulfate Drugs 0.000 description 1
- 229910000368 zinc sulfate Inorganic materials 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/101—Esters; Ether-esters of monocarboxylic acids
- C08K5/105—Esters; Ether-esters of monocarboxylic acids with phenols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
- C08K5/1345—Carboxylic esters of phenolcarboxylic acids
-
- 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
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/181—Acids containing aromatic rings
- C08G63/183—Terephthalic acids
-
- 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
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/199—Acids or hydroxy compounds containing cycloaliphatic rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/10—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
-
- 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
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
- F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/08—Mirrors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
- H01L33/60—Reflective elements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
- C08G69/265—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids from at least two different diamines or at least two different dicarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
Definitions
- the present invention relates to a resin composition for a reflector and a reflector including the same.
- Light sources such as light-emitting diodes (LEDs) and organic ELs are widely used for lighting and display backlights by taking advantage of their low power and long life.
- reflectors are used in various aspects.
- the LED package can be mainly composed of a housing part composed of a substrate and a reflector integrally formed therewith, an LED disposed inside the housing, and a transparent sealing member for sealing the LED.
- a step of obtaining a housing part made of a reflecting plate molded on a substrate; a step of arranging the LED in the housing part and electrically connecting the LED and the substrate; and sealing the LED with a sealing agent It can be manufactured through a process of stopping.
- heating is performed at a temperature of 100 to 200 ° C. in order to thermally cure the sealant. Therefore, the reflector is required to maintain the reflectance even under such heating.
- the LED package is exposed to a high temperature of 250 ° C. or higher. Therefore, the reflector is required to maintain the reflectance even under such heating. . Furthermore, it is required that the reflectance can be maintained even when exposed to heat or light generated from the LED in a use environment.
- PA9T containing a diamine unit containing 1,9-nonanediamine as a main component PA10T containing a diamine unit containing 1,10-decanediamine as a main component are used. Etc. are being studied.
- resin compositions containing PA9T or PA10T, titanium oxide, a reinforcing material, a light stabilizer, an antioxidant, and a release agent are disclosed (Patent Documents 1 and 2).
- Patent Document 3 a resin composition for a reflector that can be suitably used as a reflector for an LED or the like.
- a resin composition for a reflector including a specific polyester, a light stabilizer and / or an antioxidant has been proposed (Patent Document 3).
- Patent Documents 1 and 2 cannot sufficiently suppress discoloration when exposed to heat or light. There wasn't. Therefore, there is a demand for less discoloration and less decrease in reflectance even when exposed to heat received during manufacture or mounting of an LED package, or heat or light received from a light source in a use environment.
- reflectors used in LEDs and the like are required to further improve whiteness and reflectivity.
- the present invention has been made in view of the above circumstances, has high reflectivity, and is exposed to heat such as LED package manufacturing process and reflow soldering process during mounting, and heat and light generated from a light source in a use environment.
- it aims at providing the resin composition for reflectors which can obtain a reflecting plate with little fall of a reflectance.
- a thermoplastic resin comprising at least one of a polyester resin (A1) and a polyamide resin (A2) having a melting point (Tm) or glass transition temperature (Tg) measured by a differential scanning calorimeter (DSC) of 250 ° C. or higher. 45 to 80% by mass of (A), 17 to 54.99% by mass of white pigment (B), and 0.01 to 3% by mass of at least one compound (C) represented by the following general formula (1) % (However, the sum of (A), (B) and (C) is 100% by mass).
- the organic group X of the compound (C) is a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cyclohexyl group, or a substituted or unsubstituted group having 6 to 20 carbon atoms.
- An alkyl group, the cyclohexyl group, and the substituent that the aryl group has are an alkyl group having 1 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, a hydroxy group, a methoxy group, and
- dialcohol component unit (a12) includes 30 to 100 mol% of a cyclohexanedimethanol component unit and 0 to 70 mol% of the aliphatic dialcohol component unit.
- the resin composition for reflectors includes 30 to 100 mol% of a cyclohexanedimethanol component unit and 0 to 70 mol% of the aliphatic dialcohol component unit.
- the organic group X of the compound (C) is methyl, ethyl, n-propyl, n-octyl, n-tetradecyl, n-hexadecyl, 2,4-di-t-butylphenyl.
- the reflector according to [10] which is a reflector for a light-emitting diode element.
- the resin composition for a reflector of the present invention has high reflectivity and not only heat received in the LED package manufacturing process or reflow soldering process when mounting the LED package, but also heat generated from the LED element under the usage environment. Even when exposed to light or light, it is possible to provide a reflector that can maintain a high degree of whiteness with little discoloration and less decrease in reflectance.
- polyester resins such as PCT and semi-aromatic polyamide resins such as PA9T and PA10T have a high melting point and good heat resistance
- the melting temperature for obtaining a resin composition (such as pellets) or a molded product is low. Need to be high. Therefore, the residence time in the molding machine tends to be long, and the resin tends to deteriorate. Further, the obtained molded product tended to be unable to sufficiently suppress the decomposition reaction of the resin when exposed to heat or light for a long time.
- the present inventors can obtain a molded product with little discoloration and high reflectance by adding a predetermined amount of the compound (C) to the high melting point polyester resin (A1) or the polyamide resin (A2). And it discovered that the fall of the reflectance after shaping
- the compound (C) can satisfactorily capture radicals generated when kneading to obtain a resin composition (such as pellets) or a molded product, and can suppress the decomposition reaction of the resin. Thereby, it is considered that a molded article with little discoloration and high reflectance can be obtained. Furthermore, the compound (C) can capture radicals generated when the resin is exposed to heat or light for a long time in the molded article, and can absorb ultraviolet light well. Thereby, it is considered that the decomposition reaction of the resin due to light or heat can be suppressed, and the decrease in the reflectance of the molded product can be reduced.
- compound (C) since compound (C) has a phenyl ester structure, it is easily compatible with resins such as PCT and PA9T having a phenyl ester structure derived from terephthalic acid. Accordingly, when melt kneaded at a high temperature, the compound (C) is easily dispersed uniformly in the resin, so that it is difficult to volatilize even if it has a low molecular weight, and the decomposition reaction of the resin can be suppressed even with a small addition amount. Thereby, discoloration of a molded product can be suppressed uniformly and a decrease in reflectance can be suppressed.
- resins such as PCT and PA9T having a phenyl ester structure derived from terephthalic acid. Accordingly, when melt kneaded at a high temperature, the compound (C) is easily dispersed uniformly in the resin, so that it is difficult to volatilize even if it has a low molecular weight, and the de
- the addition amount of the compound (C) can be reduced, the discoloration of the molded product due to the discoloration of the compound (C) itself, which becomes a problem when the addition amount of the compound (C) is increased, can be suppressed. The decrease can also be suppressed.
- the present invention has been made based on such findings.
- the resin composition for a reflective material of the present invention comprises a thermoplastic resin (A) comprising at least one of a polyester resin (A1) and a polyamide resin (A2), a white pigment (B), a compound ( C).
- thermoplastic resin (A) contained in the resin composition for a reflective material of the present invention comprises at least one of a polyester resin (A1) and a polyamide resin (A2).
- polyester resin (A1) includes at least a dicarboxylic acid component unit (a11) including a component unit derived from an aromatic dicarboxylic acid and a dialcohol component unit (a12) including a component unit derived from a dialcohol having an alicyclic skeleton. It is preferable.
- the dicarboxylic acid component unit (a11) constituting the polyester resin (A1) preferably contains 30 to 100 mol% of terephthalic acid component units and 0 to 70 mol% of aromatic dicarboxylic acid component units other than terephthalic acid.
- the total amount of each dicarboxylic acid component unit in the dicarboxylic acid component unit (a11) is 100 mol%.
- the ratio of the terephthalic acid component unit contained in the dicarboxylic acid component unit (a11) is more preferably 40 to 100 mol%, and further preferably 60 to 100 mol%.
- the proportion of the aromatic dicarboxylic acid component unit other than terephthalic acid contained in the dicarboxylic acid component unit (a11) is more preferably 0 to 60 mol%, further preferably 0 to 40 mol%.
- the terephthalic acid component unit may be a component unit derived from terephthalic acid or a terephthalic acid ester.
- the terephthalic acid ester is preferably an alkyl ester of 1 to 4 carbon atoms of terephthalic acid, and examples thereof include dimethyl terephthalate.
- Preferred examples of the aromatic dicarboxylic acid component unit other than terephthalic acid include component units derived from isophthalic acid, 2-methylterephthalic acid, naphthalenedicarboxylic acid and combinations thereof, and esters of the aromatic dicarboxylic acid (preferably Component units derived from an aromatic dicarboxylic acid alkyl ester having 1 to 4 carbon atoms).
- the dicarboxylic acid component unit (a11) may further contain a small amount of an aliphatic dicarboxylic acid component unit or a polyvalent carboxylic acid component unit together with the above structural unit.
- the total ratio of the aliphatic dicarboxylic acid component unit and the polyvalent carboxylic acid component unit contained in the dicarboxylic acid component unit (a11) can be, for example, 10 mol% or less.
- the number of carbon atoms in the aliphatic dicarboxylic acid component unit is not particularly limited, but is preferably 4 to 20, and more preferably 6 to 12.
- the aliphatic dicarboxylic acid component unit include a component unit derived from an aliphatic dicarboxylic acid such as adipic acid, suberic acid, azelaic acid, sebacic acid, decanedicarboxylic acid, undecanedicarboxylic acid, dodecanedicarboxylic acid, and the like.
- it may be a component unit derived from adipic acid.
- the polyvalent carboxylic acid component unit include component units derived from tribasic acids and polybasic acids such as trimellitic acid and pyromellitic acid.
- the dialcohol component unit (a12) constituting the polyester resin (A1) preferably contains an alicyclic dialcohol component unit.
- the alicyclic dialcohol preferably contains a component unit derived from dialcohol having an alicyclic hydrocarbon skeleton having 4 to 20 carbon atoms.
- Examples of the dialcohol having an alicyclic hydrocarbon skeleton include 1,3-cyclopentanediol, 1,3-cyclopentanedimethanol, 1,4-cyclohexanediol, 1,4-cyclohexanedimethanol, 1,4-cyclohexane. Included are alicyclic dialcohols such as heptanediol and 1,4-cycloheptanedimethanol.
- a component unit derived from a dialcohol having a cyclohexane skeleton is preferable, and a component unit derived from cyclohexanedimethanol is more preferable.
- the alicyclic dialcohol has isomers such as a cis / trans structure, but the trans structure is preferred from the viewpoint of heat resistance. Accordingly, the cis / trans ratio is preferably 50/50 to 0/100, and more preferably 40/60 to 0/100.
- the dialcohol component unit (a12) may further contain an aliphatic dialcohol component unit in addition to the alicyclic dialcohol component unit in order to enhance the melt fluidity of the resin.
- the aliphatic dialcohol include ethylene glycol, trimethylene glycol, propylene glycol, tetramethylene glycol, neopentyl glycol, hexamethylene glycol, dodecamethylene glycol and the like.
- the dialcohol component unit (a12) constituting the polyester resin (A1) comprises 30 to 100 mol% of an alicyclic dialcohol component unit (preferably a dialcohol component unit having a cyclohexane skeleton) and an aliphatic dialcohol component unit. It is preferably contained in an amount of 0 to 70 mol%. The total amount of each dialcohol component unit in the dialcohol component unit (a12) is 100 mol%.
- the ratio of the alicyclic dialcohol component unit (dialcohol component unit having a cyclohexane skeleton) in the dialcohol component unit (a12) is preferably 50 to 100 mol%, more preferably 60 to 100 mol%. .
- the proportion of the aliphatic dialcohol component unit in the dialcohol component unit (a12) is preferably 0 to 50 mol%, more preferably 0 to 40 mol%.
- the dialcohol component unit (a12) may further contain a small amount of an aromatic dialcohol component unit together with the above structural unit.
- aromatic dialcohol include aromatic diols such as bisphenol, hydroquinone, and 2,2-bis (4- ⁇ -hydroxyethoxyphenyl) propane.
- Polyamide resin (A2) The polyamide resin (A2) preferably includes at least a dicarboxylic acid component unit (a21) including a component unit derived from an aromatic dicarboxylic acid and a diamine component unit (a22) including a component unit derived from an aliphatic diamine.
- the dicarboxylic acid component unit (a21) constituting the polyamide resin (A2) preferably contains 40 to 100 mol% of terephthalic acid component units and 0 to 60 mol% of aromatic dicarboxylic acid component units other than terephthalic acid.
- the total amount of each dicarboxylic acid component unit in the dicarboxylic acid component unit (a21) is 100 mol%.
- the ratio of the terephthalic acid component unit in the dicarboxylic acid component unit (a21) is more preferably 60 to 100 mol%, and further preferably 75 to 100 mol%.
- the ratio of the aromatic dicarboxylic acid component unit other than terephthalic acid in the dicarboxylic acid component unit (a21) is more preferably 0 to 40 mol%, and further preferably 0 to 25 mol%.
- the terephthalic acid component unit may be a component unit derived from terephthalic acid or a terephthalic acid ester (alkyl ester of terephthalic acid having 1 to 4 carbon atoms) as described above.
- Preferred examples of the aromatic dicarboxylic acid component unit other than terephthalic acid include component units derived from isophthalic acid, 2-methylterephthalic acid, naphthalenedicarboxylic acid and combinations thereof, and the aromatic dicarboxylic acid, as described above. Component units derived from these esters (preferably alkyl esters of aromatic dicarboxylic acids having 1 to 4 carbon atoms).
- the dicarboxylic acid component unit (a21) may further contain a small amount of an aliphatic dicarboxylic acid component unit or a polyvalent carboxylic acid component unit together with the above structural unit.
- the total ratio of the aliphatic dicarboxylic acid component unit and the polyvalent carboxylic acid component unit contained in the dicarboxylic acid component unit (a21) can be, for example, 10 mol% or less. Examples of the aliphatic dicarboxylic acid component unit and the polyvalent carboxylic acid component unit include those described above.
- the diamine component unit (a22) constituting the polyamide resin (A2) preferably contains an aliphatic diamine component unit.
- the aliphatic diamine component unit is preferably a component unit derived from an aliphatic diamine having 4 to 18 carbon atoms.
- Examples of the aliphatic diamine having 4 to 18 carbon atoms include 1,6-hexanediamine, 1,7-heptanediamine, 1,8-octanediamine, 1,9-nonanediamine, 1,10-decanediamine, Linear aliphatic diamines such as 1,11-undecanediamine and 1,12-dodecanediamine; 2-methyl-1,5-pentanediamine, 3-methyl-1,5-pentanediamine, 2,2,4-trimethyl-1,6-hexanediamine, 2,4,4-trimethyl-1,6-hexane Examples thereof include units derived from branched aliphatic diamines such as diamine, 2-methyl-1,8-octanediamine, 5-methyl-1,9-nonanediamine, and the like. More than species can be included. Among these, 1,9-nonanediamine and / or 2-methyl-1,8-octanediamine are preferable because a resin composition having further excellent heat resistance can be obtained.
- the proportion of the component unit derived from the aliphatic diamine having 4 to 18 carbon atoms in the diamine component unit (a22) is preferably 50 to 100 mol%, more preferably 60 to 100 mol%, and 75 to More preferably, it is 100 mol%. Let the total amount of each diamine component unit in a diamine component unit (a22) be 100 mol%.
- aliphatic diamine component unit contains both 1,9-nonanediamine unit and 2-methyl-1,8-octanediamine unit, 1,9-nonanediamine unit and 2-methyl-1,8-octanediamine unit
- the molar ratio of 1,9-nonanediamine unit / 2-methyl-1,8-octanediamine unit is preferably in the range of 95/5 to 50/50, more preferably in the range of 85/15 to 55/45. preferable.
- the diamine component unit (a22) may further contain a small amount of an alicyclic diamine component unit or an aromatic diamine component unit in addition to the aliphatic diamine component unit.
- the alicyclic diamine component unit include component units derived from cyclohexanediamine, methylcyclohexanediamine, and isophoronediamine.
- aromatic diamine component units include p-phenylenediamine, m-phenylenediamine, xylylenediamine, 4,4′-diaminodiphenylmethane, 4,4′-diaminodiphenylsulfone, 4,4′-diaminodiphenyl ether, and the like. Contains derived component units.
- the melting point (Tm) or glass transition temperature (Tg) of the thermoplastic resin (A) measured by a differential scanning calorimeter (DSC) is 250 ° C. or higher.
- the preferable lower limit of the melting point (Tm) or the glass transition temperature (Tg) is 270 ° C., more preferably 280 ° C.
- the upper limit temperature is not limited in principle, but a melting point or glass transition temperature of 350 ° C. or lower is preferable because decomposition of the thermoplastic resin (A) is suppressed during melt molding.
- the melting point of the polyester resin (A1) can be measured by a differential scanning calorimeter (DSC) according to JIS-K7121. Specifically, X-DSC7000 (manufactured by SII) is prepared as a measuring device. In this apparatus, a pan for DSC measurement in which a sample of the polyester resin (A1) was sealed was set, heated to 320 ° C. at a heating rate of 10 ° C./min in a nitrogen atmosphere, and held at that temperature for 5 minutes. The temperature is decreased to 30 ° C. by measuring the temperature decrease at 10 ° C./min. The temperature at the top of the endothermic peak at the time of temperature rise is defined as the “melting point”.
- DSC differential scanning calorimeter
- the melting point of the polyamide resin (A2) can be measured by the same method as described above except that the temperature is raised to 350 ° C. at a temperature rising rate of 10 ° C./min in a nitrogen atmosphere.
- the intrinsic viscosity [ ⁇ ] of the thermoplastic resin (A) is preferably 0.3 to 1.2 dl / g. When the intrinsic viscosity is in such a range, the fluidity at the time of molding of the resin composition for a reflector is excellent.
- the intrinsic viscosity of the thermoplastic resin (A) can be adjusted by adjusting the molecular weight of the thermoplastic resin (A). For example, as a method for adjusting the molecular weight of the polyester resin (A1), a known method such as the progress of the polycondensation reaction, an appropriate amount of a monofunctional carboxylic acid, a monofunctional alcohol, or the like can be employed.
- the intrinsic viscosity of the polyester resin (A1) can be measured by the following procedure.
- the polyester resin (A1) is dissolved in a 50/50 mass% mixed solvent of phenol and tetrachloroethane to obtain a sample solution.
- the flow down time of the obtained sample solution is measured under the condition of 25 ° C. ⁇ 0.05 ° C. using an Ubbelohde viscometer, and the intrinsic viscosity [ ⁇ ] is calculated by applying the following equation.
- the polyester resin (A1) can be obtained, for example, by blending a molecular weight regulator or the like in the reaction system and reacting the dicarboxylic acid component unit (a11) with the dialcohol component unit (a12). As described above, the intrinsic viscosity of the polyester resin (A1) can be adjusted by blending a molecular weight modifier in the reaction system.
- the molecular weight modifier can be a monocarboxylic acid or a monoalcohol.
- the monocarboxylic acid include aliphatic monocarboxylic acids having 2 to 30 carbon atoms, aromatic monocarboxylic acids and alicyclic monocarboxylic acids.
- the aromatic monocarboxylic acid and the alicyclic monocarboxylic acid may have a substituent in the cyclic structure portion.
- Examples of aliphatic monocarboxylic acids include acetic acid, propionic acid, butyric acid, valeric acid, caproic acid, caprylic acid, lauric acid, tridecylic acid, myristic acid, palmitic acid, stearic acid, oleic acid and linoleic acid. included.
- Examples of aromatic monocarboxylic acids include benzoic acid, toluic acid, naphthalene carboxylic acid, methyl naphthalene carboxylic acid, and phenyl acetic acid.
- Examples of alicyclic monocarboxylic acids include cyclohexane carboxylic acid. It is.
- the addition amount of the molecular weight modifier is 0 to 0.07 mol with respect to 1 mol of the total amount of the dicarboxylic acid component unit (a11) when the dicarboxylic acid component unit (a11) and the dialcohol component unit (a12) are reacted. , Preferably 0 to 0.05 mol.
- the intrinsic viscosity [ ⁇ ] of the polyamide resin (A2) can be measured in the same manner as described above except that the mixed solvent is concentrated sulfuric acid and is measured at 30 ° C.
- the content ratio of the thermoplastic resin (A) in the resin composition for a reflector of the present invention is 45 to 80% by mass with respect to the total of the thermoplastic resin (A), the white pigment (B) and the compound (C). It is preferably 45 to 70% by mass, more preferably 50 to 60% by mass.
- the content ratio of the thermoplastic resin (A) is not less than a certain level, it is easy to obtain a resin composition for a reflector having excellent heat resistance that can withstand a reflow soldering process without impairing moldability.
- the thermoplastic resin (A) includes both the polyester resin (A1) and the polyamide resin (A2)
- the content of the thermoplastic resin (A) is the content of the polyester resin (A1) and the polyamide resin (A2).
- the white pigment (B) contained in the resin composition for a reflective material of the present invention may be any material that can whiten the resin composition and improve the light reflection function.
- the white pigment (B) preferably has a refractive index of 2.0 or more.
- the upper limit value of the refractive index of the white pigment (B) can be, for example, 4.0.
- Specific examples include titanium oxide, zinc oxide, zinc sulfide, white lead, zinc sulfate, barium sulfate, calcium carbonate, and alumina oxide. These white pigments (B) may be used individually by 1 type, and may use 2 or more types together. Of these, titanium oxide is preferred because of its high reflectivity and concealment.
- the titanium oxide is preferably a rutile type.
- the average particle diameter of titanium oxide is preferably 0.1 to 0.5 ⁇ m, more preferably 0.15 to 0.3 ⁇ m.
- the white pigment (B) may be treated with a silane coupling agent or a titanium coupling agent.
- the white pigment (B) may be surface-treated with a silane compound such as vinyltriethoxysilane, 2-aminopropyltriethoxysilane, or 2-glycidoxypropyltriethoxysilane.
- the white pigment (B) preferably has a small aspect ratio, that is, close to a spherical shape, in order to make the reflectance uniform.
- the content ratio of the white pigment (B) in the resin composition for a reflector is 17 to 54.99% by mass with respect to the total of the thermoplastic resin (A), the white pigment (B), and the compound (C), preferably It is 20 to 50% by mass, more preferably 20 to 40% by mass.
- the content ratio of the white pigment (B) is 17% by mass or more, sufficient whiteness is easily obtained and the reflectance of the molded product is easily increased. If the content ratio of the white pigment (B) is 54.99% by mass or less, the moldability is hardly impaired.
- the content ratio of the white pigment (B) to the thermoplastic resin (A) can be, for example, 30 to 90% by mass, preferably 60 to 80% by mass.
- the compound (C) contained in the resin composition for a reflector of the present invention may be a compound having one or more structures represented by the following formula (A) in the molecule.
- the number of structures represented by the formula (A) per molecule can be, for example, 1 to 4, but is preferably 1. That is, the compound (C) is preferably a compound represented by the general formula (1).
- X in the general formula (1) represents an organic group.
- the organic group X represents a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cyclohexyl group, or a substituted or unsubstituted aryl group having 6 to 20 carbon atoms; preferably a carbon atom A substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 20 carbon atoms;
- Examples of the substituted or unsubstituted alkyl group having 1 to 20 carbon atoms include methyl group, ethyl group, n-propyl group, n-octyl group, n-tetradecyl group, n-hexadecyl group and the like.
- Examples of the substituted or unsubstituted aryl group having 6 to 20 carbon atoms include 2,4-di-t-butylphenyl group, 2,4-di-t-pentylphenyl group and the like.
- the substituent that the alkyl group, cyclohexyl group, and aryl group represented by the organic group X can have is an alkyl group having 1 to 12 carbon atoms such as a methyl group or an ethyl group; It is preferably a group selected from the group consisting of 12 aryl groups; hydroxy group; methoxy group; and oxadiazole group.
- the molecular weight of the compound (C) is preferably 200 to 2000, and more preferably 200 to 1000.
- the molecular weight of the compound (C) is in the above range, the volatilization at the time of melting is small, it is easy to mix well with other components, and the fluidity of the resin composition is not easily impaired.
- Compound (C) may have a radical scavenging action.
- radicals generated by heat or light received during the production or molding of the resin composition or under the usage environment of the molded product are captured, and the thermoplastic resin (A) is decomposed during the production or molding.
- the decomposition of the thermoplastic resin (A) in the molded product by heat or light can be suppressed.
- the compound (C) can have an ultraviolet absorbing action. Thereby, decomposition
- the oxycarbonyl group is directly bonded to the benzene ring.
- the compound (C) can have good radical scavenging properties.
- the content ratio of the compound (C) in the resin composition for a reflector is 0.01 to 3% by mass, preferably 0 with respect to the total of the thermoplastic resin (A), the white pigment (B), and the compound (C). 0.05 to 1.5 mass%, more preferably 0.1 to 1.1 mass%.
- the content ratio of the compound (C) is 0.01% by mass or more, it is easy to obtain sufficient whiteness by suppressing deterioration of the resin in the molded product due to heat and light, and it is easy to reduce a decrease in reflectance.
- the content ratio of the compound (C) is 3% by mass or less, it is possible to reduce a decrease in reflectance of the molded product due to coloring or deterioration of hue due to the decomposition product of the compound (C).
- the content ratio of the compound (C) to the thermoplastic resin (A) may be 0.25 to 2.0% by mass, preferably 0.27 to 1.0% by mass.
- the content ratio of the compound (C) is a certain level or more, the decomposition reaction of the thermoplastic resin (A) in the molded article when receiving heat or light for a long time can be preferably suppressed.
- the content ratio of the compound (C) is below a certain level, the decrease in the reflectance of the molded product due to coloring or hue deterioration caused by the decomposition product of the compound (C) can be reduced.
- the reflective resin composition of the present invention may further contain a reinforcing material (D) as necessary.
- the shape of the reinforcing material (D) is spherical, fibrous, or plate-like, and is preferably fibrous because it is easy to impart good strength and toughness to the molded product.
- fibrous reinforcements include glass fiber, wollastonite, potassium titanate whisker, calcium carbonate whisker, aluminum borate whisker, magnesium sulfate whisker, sepiolite, zonotlite, zinc oxide whisker, milled fiber, cut fiber, etc. It is. One of these may be used alone, or two or more may be used in combination. Among these, at least one selected from the group consisting of wollastonite, glass fiber, and potassium titanate whisker is preferable because the average fiber diameter is relatively small and the surface smoothness of the molded product is easy to increase. Wollastonite Or glass fiber is more preferable. Wollastonite is preferable in terms of high light shielding effect, and glass fiber is preferable in terms of high mechanical strength.
- the average fiber length (l) of the fibrous reinforcing material in the resin composition for a reflector is usually 5 mm or less, preferably 300 ⁇ m or less, more preferably 100 ⁇ m or less, and preferably 50 ⁇ m or less. Further preferred.
- the average fiber length (l) is not more than a certain value, the fibrous reinforcing material is not easily broken at the time of molding or the like, and the fibrous reinforcing material is easily finely dispersed in the resin. Therefore, it is easy to suppress the thermal stress of the resin by reducing the extra stress that the resin receives during molding. Moreover, it is easy to improve the surface smoothness of the obtained molding.
- the lower limit value of the average fiber length (l) is not particularly limited, but is preferably 2 ⁇ m, more preferably 8 ⁇ m. By setting the average fiber length (l) to 2 ⁇ m or more, good strength can be imparted to the molded product.
- the average fiber diameter (d) of the fibrous reinforcement in the resin composition for a reflector is less than a certain value from the viewpoint of facilitating fine dispersion of the fibrous reinforcement during molding and improving the surface smoothness of the molded article. Specifically, it is preferably 0.05 to 30 ⁇ m, and more preferably 2 to 6 ⁇ m. By setting the average fiber diameter (d) to a certain value or more, it is easy to suppress the fibrous reinforcing material from being broken during molding. By setting the average fiber diameter (d) to a certain value or more, high surface smoothness is imparted to the molded product, and high reflectance is easily obtained.
- the average fiber length (l) and the average fiber diameter (d) of the fibrous reinforcing material in the resin composition for a reflector can be measured by the following method. 1) After the resin composition for a reflector is dissolved in a hexafluoroisopropanol / chloroform solution (0.1 / 0.9% by volume), a filtrate obtained by filtration is collected. 2) Arbitrary 100 fibrous reinforcements of the obtained filtrate are observed with a scanning electron microscope (SEM) (magnification: 50 times), and each fiber length and fiber diameter are measured.
- the average value of the fiber length can be the average fiber length (l); the average value of the fiber diameter can be the average fiber diameter (d).
- the aspect ratio (l / d) obtained by dividing the average fiber length (l) of the fibrous reinforcement by the average fiber diameter (d) is preferably 2 to 20, and more preferably 7 to 12. preferable. When the aspect ratio is above a certain level, it is easy to impart a certain level of strength and rigidity to the molded product.
- the content of the reinforcing material (D) in the resin composition for a reflective material is 5 to 50% by mass, preferably 5%, based on the total of the thermoplastic resin (A), the white pigment (B), and the compound (C). It can be ⁇ 40% by weight.
- the content ratio of the reinforcing material (D) is 5% by mass or more, the heat resistance of the resin composition is increased, and the surface of the molded product is easily smoothed.
- the moldability of a resin composition is hard to be impaired as the content rate of a reinforcing material (D) is 50 mass% or less.
- the resin composition for a reflective material of the present invention is an optional component, for example, an antioxidant (amines, sulfurs, phosphorus, etc.), a light stabilizer, depending on the application, within the range not impairing the effects of the present invention.
- an antioxidant amines, sulfurs, phosphorus, etc.
- a light stabilizer depending on the application, within the range not impairing the effects of the present invention.
- polystyrene resin Benzotriazoles, triazines, benzophenones, hindered amines, ogizanides, etc.
- heat stabilizers lactone compounds, vitamin Es, hydroquinones, copper halides, iodine compounds, etc.
- other polymers polyolefins, Olefin copolymer such as ethylene / propylene copolymer, ethylene / 1-butene copolymer, olefin copolymer such as propylene / 1-butene copolymer, polystyrene, polyamide, polycarbonate, polyacetal, polysulfone, polyphenylene oxide , Fluorine resin, silicone resin, LCP, etc.), flame retardant (bromine, chlorine, Emissions-based, antimony-based, inorganic, etc.) fluorescent whitening agent, a plasticizer, a thickener, an antistatic agent, a release agent, pigment, nucleating agent, it may include such various
- the selection of the additive may be important.
- the other component used in combination includes a catalyst or the like, it is preferable to avoid a compound containing a component or element that becomes a catalyst poison in the additive.
- Additives that should be avoided include, for example, compounds containing sulfur and the like.
- the resin composition for a reflective material of the present invention can have good moldability. Specifically, the flow length when the resin composition for a reflector is injection molded under the following conditions is preferably 30 mm or more, and more preferably 31 mm or more.
- the content ratio of the white pigment (B) and the reinforcing material (D) is preferably set to a certain value or less.
- the resin composition for reflectors of the present invention is a method in which the above components are mixed by a known method such as a Henschel mixer, a V blender, a ribbon blender, a tumbler blender, or the like. Further, it can be produced by a method of granulation or pulverization after melt-kneading with a single screw extruder, a multi-screw extruder, a kneader, a Banbury mixer or the like.
- the resin composition for a reflector of the present invention may be preferably a compound such as a pellet obtained by mixing the above components with a single screw extruder or a multi-screw extruder, then melt-kneading, granulating or pulverizing.
- the compound is preferably used as a molding material.
- the melt kneading is preferably performed at a temperature 5 to 30 ° C. higher than the melting point of the polyester resin (A1) or the polyamide resin (A2).
- the preferable lower limit of the melt kneading temperature can be 255 ° C, preferably 275 ° C, more preferably 295 ° C, and the preferable upper limit can be 360 ° C, more preferably 340 ° C.
- Reflector of the present invention can be a molded product obtained by molding the resin composition for a reflector of the present invention.
- the reflectance of light having a wavelength of 450 nm is preferably 90% or more and 94% or more from the viewpoint of allowing the molded product to function well as a reflector. It is more preferable.
- the reflectance can be measured using CM3500d manufactured by Konica Minolta.
- the thickness of the molded product at the time of measurement can be 0.5 mm.
- the molded product of the resin composition for a reflective material of the present invention preferably has little decrease in reflectance even when it receives heat or light.
- the reflectance of light having a wavelength of 450 nm measured after heating at 150 ° C. for 500 hours of the molded product is, for example, 90% or more in the case of the polyester resin (A1), and the polyamide resin (A2) In this case, it may be 70% or more, for example.
- the reflectance of light having a wavelength of 450 nm measured after irradiation of ultraviolet rays at 16 mW / cm 2 for 500 hours of the molded product is, for example, 82% or more in the case of the polyester resin (A1), and in the case of the polyamide resin (A2).
- the thickness of the molded product at the time of measurement can be 0.5 mm.
- the compound (C) is preferably contained in a certain amount or more.
- the reflector of the present invention can be a casing or a housing having at least a light reflecting surface.
- the surface that reflects light may be a flat surface, a curved surface, or a spherical surface.
- the reflecting plate may be a molded product having a light reflecting surface in a box shape or box shape, funnel shape, bowl shape, parabolic shape, columnar shape, conical shape, honeycomb shape, or the like.
- the reflector of the present invention is used as a reflector for various light sources such as organic EL and light emitting diodes (LEDs). Especially, it is preferable to be used as a reflecting plate of a light emitting diode (LED), and more preferable to be used as a reflecting plate of a light emitting diode (LED) corresponding to surface mounting.
- LEDs organic EL and light emitting diodes
- the reflecting plate of the present invention is obtained by subjecting the resin composition for a reflecting material of the present invention to a desired shape by injection molding, in particular, metal insert molding such as hoop molding, melt molding, extrusion molding, inflation molding, and blow molding. It can be obtained by shaping into a shape.
- the reflector of the present invention is obtained by molding a resin composition for a reflector containing the compound (C). Since the compound (C) can well capture radicals generated at high temperatures during the production or molding of the resin composition, it is easy to suppress the decomposition reaction of the thermoplastic resin (A) due to heat. Thereby, there can be obtained a molded product with little discoloration and high reflectance.
- An LED package provided with the reflector of the present invention includes, for example, a housing part formed on a substrate and having a space for mounting an LED, the LED mounted in the space, and a transparent seal for sealing the LED. And a stop member.
- a step of forming a reflecting plate on a substrate to obtain a housing portion 2) a step of disposing the LED in the housing portion and electrically connecting the LED and the substrate; 3) It can be manufactured through a process of sealing the LED with a sealant.
- heating is performed at a temperature of 100 to 200 ° C. in order to thermally cure the sealant.
- the LED package is exposed to a high temperature of 250 ° C. or higher.
- the reflecting plate obtained from the resin composition for a reflecting material of the present invention contains the compound (C), it is exposed to high-temperature heat in the above process, or visible light or ultraviolet light generated from the LED under the use environment. Even when receiving light or heat for a long time, the compound (C) can capture radicals well. In addition, since the compound (C) can absorb ultraviolet light and the like, the amount of ultraviolet light received by the resin can be reduced. By these, the decomposition reaction of the thermoplastic resin (A) due to light or heat in the molded product can be suppressed, the discoloration is small, and a high reflectance can be maintained.
- the reflector of the present invention can be used for various applications, for example, as a reflector for various electric and electronic parts, indoor lighting, outdoor lighting, automobile lighting, and the like.
- the intrinsic viscosity [ ⁇ ] of the obtained polyester resin (A1) was 0.6 dl / g, and the melting point was 290 ° C.
- the intrinsic viscosity [ ⁇ ] and the melting point were measured by the following methods.
- the obtained polyester resin (A1) was dissolved in a 50/50 mass% mixed solvent of phenol and tetrachloroethane to obtain a sample solution.
- the flow down time of the obtained sample solution was measured under the condition of 25 ° C. ⁇ 0.05 ° C. using an Ubbelohde viscometer, and the intrinsic viscosity [ ⁇ ] was calculated by applying the following equation.
- the melting point of the polyester resin (A1) was measured according to JIS-K7121.
- An X-DSC7000 manufactured by SII was prepared as a measuring device.
- a DSC measurement pan in which a sample of the polyester resin (A1) was sealed was set therein, heated to 320 ° C. at a temperature rising rate of 10 ° C./min in a nitrogen atmosphere, and held at that temperature for 5 minutes.
- the temperature was decreased to 30 ° C. by measuring the temperature decrease at 10 ° C./min.
- the temperature at the peak top of the endothermic peak at the time of temperature rise was defined as “melting point”.
- the reaction was continued for 1 hour as it was, and then discharged from the spray nozzle installed at the bottom of the autoclave to extract the low condensate.
- the obtained low condensate was cooled to room temperature, pulverized to a particle size of 1.5 mm or less with a pulverizer, and dried at 110 ° C. for 24 hours.
- the obtained low condensate had a water content of 4100 ppm and an intrinsic viscosity [ ⁇ ] of 0.13 dl / g.
- this low condensate was put into a shelf type solid phase polymerization apparatus, and after nitrogen substitution, the temperature was raised to 180 ° C. over about 1 hour and 30 minutes. Then, after reacting for 1 hour and 30 minutes, the temperature was lowered to room temperature.
- the intrinsic viscosity [ ⁇ ] of the obtained polyamide was 0.17 dl / g.
- the intrinsic viscosity [ ⁇ ] of the obtained polyamide resin (A2) was 0.91 dl / g, and the melting point was 306 ° C.
- the intrinsic viscosity [ ⁇ ] of the polyamide resin (A2) was measured in the same manner as described above except that it was measured in concentrated sulfuric acid at 30 ° C.
- the melting point of the polyamide resin (A2) was measured by the same method as described above except that the temperature was raised to 350 ° C. at a temperature rising rate of 10 ° C./min in a nitrogen atmosphere.
- D-1 Wollastonite, average fiber length (l) 50 ⁇ m, average fiber diameter (d) 4.5 ⁇ m, aspect ratio (l / d) 11 (NYGLOS 4W manufactured by Sakai Kogyo Co., Ltd.)
- D-2 Glass fiber, average fiber length (l) 3 mm, profile ratio 4 [7 ⁇ m ⁇ 28 ⁇ m] (Nittobo Co., Ltd. CSG 3PA-830, silane compound treated product)
- the average fiber length (l) and average fiber diameter (d) of wollastonite (D-1) and glass fiber (D-2) as raw materials were measured by the following methods.
- the average fiber length and the average fiber diameter of the reinforcing material (D) in the obtained pellet-shaped resin composition for a reflector were measured by the following method. 1) The obtained resin composition for a reflector was dissolved in a hexafluoroisopropanol / chloroform solution (0.1 / 0.9% by volume), and a filtrate was collected. 2) Arbitrary 100 reinforcing materials (D) out of the obtained filtrate were observed with a scanning electron microscope (S-4800 manufactured by Hitachi, Ltd.) at a magnification of 50 times, and each fiber length and fiber diameter were observed. Was measured. And the average value of the measured fiber length was made into "average fiber length”; the average value of the measured fiber diameter was made into "average fiber diameter". As a result, the average fiber length in the resin composition for reflectors obtained in Example 1 was 23 ⁇ m, and the average fiber diameter was 2.9 ⁇ m.
- Examples 2, 3, 5 to 9 and Comparative Examples 1 to 3 A pellet-shaped resin composition was obtained in the same manner as in Example 1 except that the composition shown in Table 1 or 2 was changed.
- Example 4 and Comparative Example 4 A pellet-shaped resin composition was obtained in the same manner as in Example 1 except that the cylinder temperature was changed to 320 ° C. and the composition shown in Table 1 or 2 was changed.
- ⁇ Reflectance> (Initial reflectance)
- the obtained pellet-shaped resin composition was injection-molded under the following molding conditions using the following molding machine to prepare a test piece having a length of 30 mm, a width of 30 mm, and a thickness of 0.5 mm.
- the reflectance of the wavelength region of 360 nm to 740 nm was determined for the obtained test piece using Minolta CM3500d.
- the reflectance at 450 nm was used as a representative value, and was used as the initial reflectance.
- Molding machine SE50DU, manufactured by Sumitomo Heavy Industries, Ltd. Cylinder temperature: melting point (Tm) + 10 ° C. Mold temperature: 150 ° C
- the test piece whose initial reflectance was measured was left in an oven at 150 ° C. for 500 hours. Then, the reflectance of the obtained sample piece was measured by the same method as the initial reflectance, and was defined as the reflectance after heating.
- the obtained resin composition was injection molded under the following conditions using a bar flow mold having a width of 10 mm and a thickness of 0.5 mm, and the flow length (mm) of the resin in the mold was measured.
- Injection molding machine Sodick Plustec, Tupar TR40S3A Injection set pressure: 2000 kg / cm 2 Cylinder setting temperature: Melting point (Tm) + 10 ° C Mold temperature: 30 °C
- the resin compositions of Examples 1 to 9 containing the compound (C) have higher reflection than the resin compositions of Comparative Examples 1 and 3 to 4 containing no compound (C). It can be seen that there is little reduction in reflectance after heating or after light irradiation. This captures radicals generated when the compound (C) receives heat at the time of production or molding of the pellet-shaped resin composition, heat or light after molding, and the polyester resin (A1) or This is considered to be because the decomposition reaction of the polyamide resin (A2) can be suppressed.
- the resin compositions of Examples 1 to 3 in which the content ratio of the compound (C) is not more than a certain value are those in Comparative Example 2 in which the content ratio of the compound (C) is too large. It can be seen that the reflectance after the reflow test, after heating and after ultraviolet irradiation is higher than that of the resin composition. That is, since the compound (C) has high compatibility with the polyester resin (A1) when melted, the volatilization is reduced even at a low molecular weight, and the compound (C) is uniformly dispersed even with a small addition amount. It is shown that the discoloration of) can be suppressed.
- the compound (C) not only captures radicals generated during high-temperature kneading, but also transesterifies the compound (C) with the polyester resin (A1) to produce a polyester resin (A1 It is also considered that the molecular ends are sealed to suppress resin degradation.
- Example 5 From the comparison between Example 4 and Example 5, the resin composition of Example 5 containing the polyester resin (A1) has a higher reflectance after heating than the resin composition of Example 4 containing the polyamide resin (A2). I understand that. It is considered that the resin composition of Example 4 could not sufficiently suppress the discoloration derived from the amide group of the polyamide resin (A2).
- Example 1 containing an appropriate amount of the reinforcing material (D) is the same as the resin composition or reinforcing material (D) of Example 7 not containing the reinforcing material (D). It is shown that there is less decrease in reflectance after heating and after ultraviolet irradiation than the resin composition of Example 8 containing relatively much.
- Example 9 From the comparison between Example 9 and Comparative Example 3, the resin composition of Example 9 is sufficiently suppressed in the resin composition of Comparative Example 3 not only in the initial reflectance but also in the reflectance after heating. Is shown. This shows that the compound (C) can highly suppress discoloration of the polyester resin (A1) even with a small addition amount.
- the resin composition for a reflective material of the present invention is reflective even if it is exposed to heat or light received from a light source in an environment of use or a reflow soldering process when mounting an LED package, for example. It is possible to provide a reflector with a low rate reduction.
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Abstract
Description
[2] 前記化合物(C)の有機基Xが、炭素原子数1~20の置換または未置換のアルキル基、置換または未置換のシクロヘキシル基、あるいは炭素原子数6~20の置換または未置換のアリール基であり、前記アルキル基、前記シクロヘキシル基、および前記アリール基が有する置換基は、炭素原子数1~12のアルキル基、炭素原子数6~12のアリール基、ヒドロキシ基、メトキシ基、およびオキサジアゾール基からなる群より選ばれる、[1]に記載の反射材用樹脂組成物。
[3] 前記ポリエステル樹脂(A1)が、テレフタル酸から誘導されるジカルボン酸成分単位30~100モル%と、テレフタル酸以外の芳香族ジカルボン酸成分単位0~70モル%とを含むジカルボン酸成分単位(a11)と、炭素原子数4~20の脂環族ジアルコール成分単位および/または脂肪族ジアルコール成分単位を含むジアルコール成分単位(a12)とを含む、[1]または[2]に記載の反射材用樹脂組成物。
[4] 前記脂環族ジアルコール成分単位が、シクロヘキサン骨格を有する、[3]に記載の反射材用樹脂組成物。
[5] 前記ジアルコール成分単位(a12)が、シクロヘキサンジメタノール成分単位30~100モル%と、前記脂肪族ジアルコール成分単位0~70モル%とを含む、[3]または[4]に記載の反射材用樹脂組成物。
[6] 前記ポリアミド樹脂(A2)が、テレフタル酸から誘導されるジカルボン酸成分単位を40~100モル%と、テレフタル酸以外の芳香族ジカルボン酸成分単位0~60モル%とを含むジカルボン酸成分単位(a21)と、炭素原子数4~18の脂肪族ジアミン成分単位50~100モル%を含むジアミン成分単位(a22)とを含む、[1]または[2]に記載の反射材用樹脂組成物。
[7] 前記脂肪族ジアミン成分単位が、1,9-ノナンジアミン単位と2-メチル-1,8-オクタンジアミン単位の少なくとも一方である、[6]に記載の反射材用樹脂組成物。
[8] 前記化合物(C)の有機基Xが、メチル基、エチル基、n-プロピル基、n-オクチル基、n-テトラデシル基、n-ヘキサデシル基、2,4-ジ-t-ブチルフェニル基、および2,4-ジ-t-ペンチルフェニル基からなる群より選ばれる基である、[1]~[7]のいずれかに記載の反射材用樹脂組成物。
[9] 前記(A)、(B)および(C)の合計100質量%に対して、強化材(D)を5~50質量%さらに含む、[1]~[8]のいずれかに記載の反射材用樹脂組成物。
[10] [1]~[9]のいずれかに記載の反射材用樹脂組成物を成形して得られる、反射板。
[11] 発光ダイオード素子用の反射板である、[10]に記載の反射板。
本発明の反射材用樹脂組成物は、ポリエステル樹脂(A1)とポリアミド樹脂(A2)の少なくとも一方からなる熱可塑性樹脂(A)と、白色顔料(B)と、化合物(C)とを含む。
本発明の反射材用樹脂組成物に含まれる熱可塑性樹脂(A)は、ポリエステル樹脂(A1)とポリアミド樹脂(A2)の少なくとも一方からなる。
ポリエステル樹脂(A1)は、少なくとも芳香族ジカルボン酸由来の成分単位を含むジカルボン酸成分単位(a11)と、脂環骨格を有するジアルコール由来の成分単位を含むジアルコール成分単位(a12)とを含むことが好ましい。
ポリアミド樹脂(A2)は、少なくとも芳香族ジカルボン酸由来の成分単位を含むジカルボン酸成分単位(a21)と、脂肪族ジアミン由来の成分単位を含むジアミン成分単位(a22)とを含むことが好ましい。
2-メチル-1,5-ペンタンジアミン、3-メチル-1,5-ペンタンジアミン、2,2,4-トリメチル-1,6-ヘキサンジアミン、2,4,4-トリメチル-1,6-ヘキサンジアミン、2-メチル-1,8-オクタンジアミン、5-メチル-1,9-ノナンジアミン等の分岐鎖状脂肪族ジアミンなどから誘導される単位を挙げることができ、これらのうちの1種または2種以上を含むことができる。これらのなかでも、耐熱性に一層優れる樹脂組成物が得られることから、1,9-ノナンジアミンおよび/または2-メチル-1,8-オクタンジアミンが好ましい。
熱可塑性樹脂(A)の、示差走査熱量計(DSC)で測定される融点(Tm)もしくはガラス転移温度(Tg)は250℃以上である。融点(Tm)もしくはガラス転移温度(Tg)の好ましい下限値は、270℃であり、より好ましくは280℃である。一方、融点(Tm)もしくはガラス転移温度(Tg)の好ましい上限値としては350℃を例示でき、さらに好ましくは335℃である。前記融点やガラス転移温度が250℃以上であると、リフローはんだ工程での反射板(樹脂組成物の成形物)の変色や変形などが抑制される。上限温度は原則的には制限されないが、融点もしくはガラス転移温度が350℃以下であると、溶融成形に際して熱可塑性樹脂(A)の分解が抑制されるため好ましい。
ポリエステル樹脂(A1)をフェノールとテトラクロロエタンの50/50質量%の混合溶媒に溶解させて試料溶液とする。得られた試料溶液の流下秒数を、ウベローデ粘度計を用いて25℃±0.05℃の条件下で測定し、下記式に当てはめて極限粘度[η]を算出する。
[η]=ηSP/[C(1+kηSP)]
[η]:極限粘度(dl/g)
ηSP:比粘度
C:試料濃度(g/dl)
t:試料溶液の流下秒数(秒)
t0:溶媒の流下秒数(秒)
k:定数(溶液濃度の異なるサンプル(3点以上)の比粘度を測定し、横軸に溶液濃度、縦軸にηsp/Cをプロットして求めた傾き)
ηSP=(t-t0)/t0
本発明の反射材用樹脂組成物に含まれる白色顔料(B)は、樹脂組成物を白色化し、光反射機能を向上できるものであればよい。具体的には、白色顔料(B)は、屈折率が2.0以上であることが好ましい。白色顔料(B)の屈折率の上限値は、例えば4.0でありうる。具体的には、酸化チタン、酸化亜鉛、硫化亜鉛、鉛白、硫酸亜鉛、硫酸バリウム、炭酸カルシウム、酸化アルミナなどが挙げられる。これらの白色顔料(B)は、一種を単独で用いてもよいし、二種以上を併用してもよい。なかでも、成形物の反射率や隠蔽性などが高いなどから、酸化チタンが好ましい。
本発明の反射材用樹脂組成物は、必要に応じて強化材(D)をさらに含んでもよい。強化材(D)の形状は、球状、繊維状、または板状などあり、成形物に良好な強度や靱性を付与しやすいことなどから、好ましくは繊維状である。
1)反射材用樹脂組成物をヘキサフルオロイソプロパノール/クロロホルム溶液(0.1/0.9体積%)に溶解させた後、濾過して得られる濾過物を採取する。
2)得られた濾過物のうち任意の100本の繊維状強化材を走査型電子顕微鏡(SEM)(倍率:50倍)で観察し、それぞれの繊維長および繊維径を計測する。繊維長の平均値を平均繊維長(l)とし;繊維径の平均値を平均繊維径(d)としうる。
本発明の反射材用樹脂組成物は、本発明の効果を損なわない範囲で、用途に応じて、任意の成分、例えば、酸化防止剤(アミン類、イオウ類、リン類等)、光安定剤(ベンゾトリアゾール類、トリアジン類、ベンゾフェノン類、ヒンダードアミン類、オギザニリド類等)、耐熱安定剤(ラクトン化合物、ビタミンE類、ハイドロキノン類、ハロゲン化銅、ヨウ素化合物等)、他の重合体(ポリオレフィン類、エチレン・プロピレン共重合体、エチレン・1-ブテン共重合体等のオレフィン共重合体、プロピレン・1-ブテン共重合体等のオレフィン共重合体、ポリスチレン、ポリアミド、ポリカーボネート、ポリアセタール、ポリスルフォン、ポリフェニレンオキシド、フッ素樹脂、シリコーン樹脂、LCP等)、難燃剤(臭素系、塩素系、リン系、アンチモン系、無機系等)蛍光増白剤、可塑剤、増粘剤、帯電防止剤、離型剤、顔料、結晶核剤、種々公知の配合剤などを含んでもよい。
本発明の反射材用樹脂組成物は、良好な成形性を有しうる。具体的には、反射材用樹脂組成物を下記条件で射出成形したときの流動長が、30mm以上であることが好ましく、31mm以上であることがより好ましい。
射出成形装置:(株)ソディック プラステック、ツパールTR40S3A
射出設定圧力:2000kg・cm2
シリンダー設定温度:融点+10℃
金型温度:30℃
本発明の反射材用樹脂組成物は、上記の各成分を、公知の方法、例えばヘンシェルミキサー、Vブレンダー、リボンブレンダー、タンブラーブレンダーなどで混合する方法、あるいは混合後さらに一軸押出機、多軸押出機、ニーダー、バンバリーミキサーなどで溶融混練後、造粒あるいは粉砕する方法により製造することができる。
本発明の反射板は、本発明の反射材用樹脂組成物を成形して得られる成形物でありうる。
<ポリエステル樹脂(A1)>
ジメチルテレフタレートl06.2質量部と、1,4-シクロヘキサンジメタノール(シス/トランス比:30/70)(東京化成工業社製)94.6質量部とを混合した。当該混合物に、テトラブチルチタネート0.0037質量部を加え、150℃から300℃まで3時間30分かけて昇温し、エステル交換反応をさせた。
得られたポリエステル樹脂(A1)を、フェノールとテトラクロロエタンの50/50質量%の混合溶媒に溶解して試料溶液とした。得られた試料溶液の流下秒数を、ウベローデ粘度計を用いて25℃±0.05℃の条件下で測定し、下記式に当てはめて極限粘度[η]を算出した。
[η]=ηSP/[C(1+kηSP)]
[η]:極限粘度(dl/g)
ηSP:比粘度
C:試料濃度(g/dl)
t:試料溶液の流下秒数(秒)
t0:溶媒の流下秒数(秒)
k:定数(溶液濃度の異なるサンプル(3点以上)の比粘度を測定し、横軸に溶液濃度、縦軸にηsp/Cをプロットして求めた傾き)
ηSP=(t-t0)/t0
ポリエステル樹脂(A1)の融点の測定は、JIS-K7121に準じて行った。測定装置としてX-DSC7000(SII社製)を準備した。これに、ポリエステル樹脂(A1)の試料を封入したDSC測定用パンをセットし、窒素雰囲気下で、昇温速度10℃/分で、320℃まで昇温し、その温度で5分間保持した後、10℃/分の降温測定で30℃まで降温させた。そして、昇温時の吸熱ピークのピークトップの温度を「融点」とした。
テレフタル酸23.9質量部、1,9-ノナンジアミン20.4質量部、2-メチル-1,8-オクタンジアミン3.6質量部、安息香酸0.3質量部、次亜リン酸ナトリウム-水和物0.3質量部および蒸留水をオートクレーブに入れ、窒素置換した。得られた混合物を加熱して、190℃から攪拌を開始し、3時間かけて内部温度を250℃まで昇温させた。このとき、オートクレーブの内圧を3.03MPaまで昇圧させた。このまま1時間反応を続けた後、オートクレーブ下部に設置したスプレーノズルから大気放出して低縮合物を抜き出した。得られた低縮合物を室温まで冷却した後、粉砕機で1.5mm以下の粒径まで粉砕し、110℃で24時間乾燥させた。得られた低縮合物の水分量は4100ppm、極限粘度[η]は0.13dl/gであった。
酸化チタン(粉末状、平均粒径*b0.21μm)
*b:酸化チタンの平均粒径は、透過型電子顕微鏡写真をもとに画像回折装置(ルーゼックスIIIU)にて画像解析して求めた。
C-1:KEMISORB114(ケミプロ化成(株)、下記式で表される化合物)
R-1:Irganox1010(BASF)ペンタエリトリトールテトラキス[3-(3,5-ジ-tert-ブチル-4-ヒドロキシフェニル)プロピオナート]
D-1:ワラストナイト、平均繊維長(l)50μm、平均繊維径(d)4.5μm、アスペクト比(l/d)11(巴工業(株)社製NYGLOS 4W)
D-2:ガラス繊維、平均繊維長(l)3mm、異形比4[7μm×28μm](日東紡績(株)製CSG 3PA-830、シラン化合物処理品)
原料としてのワラストナイト(D-1)およびガラス繊維(D-2)の平均繊維長(l)および平均繊維径(d)は、以下の方法で測定した。即ち、走査型電子顕微鏡(SEM)(倍率:50倍)を介して、100本のワラストナイトまたはガラス繊維の繊維長、繊維径を測定した。そして、繊維長の平均値を平均繊維長(l)とし、繊維径の平均値を平均繊維径(d)とした。アスペクト比=平均繊維長/平均繊維径(l/d)とした。
[実施例1]
ポリエステル樹脂(A1)として上記合成したポリエステル樹脂54.85質量部、白色顔料(B)として上記酸化チタン35質量部、化合物(C)として化合物(C-1)0.15質量部、強化材(D)として上記ワラストナイト(D-1)10質量部とをタンブラーブレンダーを用いて混合した。得られた混合物を、二軸押出機((株)日本製鋼所製 TEX30α)にてシリンダー温度300℃で原料を溶融混錬した後、ストランド状に押出した。押出物を水槽で冷却後、ペレタイザーでストランドを引き取り、カットして、ペレット状の反射材用樹脂組成物を得た。コンパウンド性は良好であることを確認できた。
1)得られた反射材用樹脂組成物を、ヘキサフルオロイソプロパノール/クロロホルム溶液(0.1/0.9体積%)に溶解させて、濾過物を採取した。
2)得られた濾過物のうち任意の100本の強化材(D)を、走査型電子顕微鏡(日立社製S-4800)にて50倍の倍率で観察し、それぞれの繊維長と繊維径を計測した。そして、計測された繊維長の平均値を「平均繊維長」とし;計測された繊維径の平均値を「平均繊維径」とした。
その結果、実施例1で得られた反射材用樹脂組成物中の平均繊維長は23μmであり、平均繊維径は2.9μmであった。
表1または2に示される組成に変更した以外は実施例1と同様にしてペレット状の樹脂組成物を得た。
シリンダー温度を320℃に変更し、かつ表1または2に示される組成に変更した以外は実施例1と同様にしてペレット状の樹脂組成物を得た。
(初期反射率)
得られたペレット状の樹脂組成物を、下記の成形機を用いて、下記の成形条件で射出成形して、長さ30mm、幅30mm、厚さ0.5mmの試験片を調製した。得られた試験片を、ミノルタ(株)CM3500dを用いて、波長領域360nm~740nmの反射率を求めた。450nmの反射率を代表値として初期反射率とした。
成形機: 住友重機械工業(株)社製、SE50DU
シリンダー温度:融点(Tm)+10℃、
金型温度:150℃
初期反射率を測定した試料片を、170℃のオーブンに2時間放置した。次いで、この試料片を、エアーリフローはんだ装置(エイテックテクトロン(株)製AIS-20-82-C)を用いて、試料片の表面温度が260℃となり、かつ20秒保持する温度プロファイルの熱処理(リフローはんだ工程と同様の熱処理)を施した。この試料片を徐冷後、初期反射率と同様の方法で反射率を測定し、リフロー試験後の反射率とした。
初期反射率を測定した試験片を、150℃のオーブンに500時間放置した。その後、得られた試料片の反射率を、初期反射率と同様の方法で測定し、加熱後の反射率とした。
初期反射率を測定した試験片を、下記の紫外線照射装置に500時間放置した。その後、得られた試料片の反射率を、初期反射率と同様の方法で測定し、紫外線照射後の反射率とした。
紫外線照射装置:ダイプラ・ウィンテス(株) スーパーウィンミニ
出力:16mW/cm2
得られた樹脂組成物を、幅10mm、厚み0.5mmのバーフロー金型を用いて、以下の条件で射出成形し、金型内の樹脂の流動長(mm)を測定した。
射出成形機:(株)ソディック プラステック、ツパールTR40S3A
射出設定圧力:2000kg/cm2
シリンダー設定温度:融点(Tm)+10℃
金型温度:30℃
Claims (11)
- 前記化合物(C)の有機基Xが、炭素原子数1~20の置換または未置換のアルキル基、置換または未置換のシクロヘキシル基、あるいは炭素原子数6~20の置換または未置換のアリール基であり、
前記アルキル基、前記シクロヘキシル基、および前記アリール基が有する置換基は、炭素原子数1~12のアルキル基、炭素原子数6~12のアリール基、ヒドロキシ基、メトキシ基、およびオキサジアゾール基からなる群より選ばれる、請求項1に記載の反射材用樹脂組成物。 - 前記ポリエステル樹脂(A1)が、
テレフタル酸から誘導されるジカルボン酸成分単位30~100モル%と、テレフタル酸以外の芳香族ジカルボン酸成分単位0~70モル%とを含むジカルボン酸成分単位(a11)と、
炭素原子数4~20の脂環族ジアルコール成分単位および/または脂肪族ジアルコール成分単位を含むジアルコール成分単位(a12)と、を含む、請求項1または2に記載の反射材用樹脂組成物。 - 前記脂環族ジアルコール成分単位が、シクロヘキサン骨格を有する、請求項3に記載の反射材用樹脂組成物。
- 前記ジアルコール成分単位(a12)が、シクロヘキサンジメタノール成分単位30~100モル%と、前記脂肪族ジアルコール成分単位0~70モル%とを含む、請求項3または4に記載の反射材用樹脂組成物。
- 前記ポリアミド樹脂(A2)が、
テレフタル酸から誘導されるジカルボン酸成分単位を40~100モル%と、テレフタル酸以外の芳香族ジカルボン酸成分単位0~60モル%とを含むジカルボン酸成分単位(a21)と、
炭素原子数4~18の脂肪族ジアミン成分単位50~100モル%を含むジアミン成分単位(a22)とを含む、請求項1または2に記載の反射材用樹脂組成物。 - 前記脂肪族ジアミン成分単位が、1,9-ノナンジアミン単位と2-メチル-1,8-オクタンジアミン単位の少なくとも一方である、請求項6に記載の反射材用樹脂組成物。
- 前記化合物(C)の有機基Xが、メチル基、エチル基、n-プロピル基、n-オクチル基、n-テトラデシル基、n-ヘキサデシル基、2,4-ジ-t-ブチルフェニル基、および2,4-ジ-t-ペンチルフェニル基からなる群より選ばれる基である、請求項1~7のいずれか一項に記載の反射材用樹脂組成物。
- 前記(A)、(B)および(C)の合計100質量%に対して、
強化材(D)を5~50質量%さらに含む、請求項1~8のいずれか一項に記載の反射材用樹脂組成物。 - 請求項1~9のいずれか一項に記載の反射材用樹脂組成物を成形して得られる、反射板。
- 発光ダイオード素子用の反射板である、請求項10に記載の反射板。
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US20170210879A1 (en) * | 2014-06-30 | 2017-07-27 | Mitsui Chemicals, Inc. | Polyester resin composition for reflective materials and reflection plate containing same |
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