US20230104878A1 - Vehicle headlight assembly - Google Patents
Vehicle headlight assembly Download PDFInfo
- Publication number
- US20230104878A1 US20230104878A1 US17/490,166 US202117490166A US2023104878A1 US 20230104878 A1 US20230104878 A1 US 20230104878A1 US 202117490166 A US202117490166 A US 202117490166A US 2023104878 A1 US2023104878 A1 US 2023104878A1
- Authority
- US
- United States
- Prior art keywords
- dye
- anthraquinone
- mixture
- colorant
- vehicle headlight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- -1 amine salt Chemical class 0.000 claims abstract description 54
- 239000000203 mixture Substances 0.000 claims abstract description 51
- 239000003086 colorant Substances 0.000 claims abstract description 49
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- 239000001000 anthraquinone dye Substances 0.000 claims abstract description 34
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- 150000004056 anthraquinones Chemical class 0.000 claims description 34
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- 125000004178 (C1-C4) alkyl group Chemical group 0.000 description 3
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- 239000004305 biphenyl Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- IWWWBRIIGAXLCJ-BGABXYSRSA-N chembl1185241 Chemical compound C1=2C=C(C)C(NCC)=CC=2OC2=C\C(=N/CC)C(C)=CC2=C1C1=CC=CC=C1C(=O)OCC IWWWBRIIGAXLCJ-BGABXYSRSA-N 0.000 description 1
- CEZCCHQBSQPRMU-UHFFFAOYSA-L chembl174821 Chemical compound [Na+].[Na+].COC1=CC(S([O-])(=O)=O)=C(C)C=C1N=NC1=C(O)C=CC2=CC(S([O-])(=O)=O)=CC=C12 CEZCCHQBSQPRMU-UHFFFAOYSA-L 0.000 description 1
- BQFCCCIRTOLPEF-UHFFFAOYSA-N chembl1976978 Chemical compound CC1=CC=CC=C1N=NC1=C(O)C=CC2=CC=CC=C12 BQFCCCIRTOLPEF-UHFFFAOYSA-N 0.000 description 1
- ALLOLPOYFRLCCX-UHFFFAOYSA-N chembl1986529 Chemical compound COC1=CC=CC=C1N=NC1=C(O)C=CC2=CC=CC=C12 ALLOLPOYFRLCCX-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- ZXJXZNDDNMQXFV-UHFFFAOYSA-M crystal violet Chemical compound [Cl-].C1=CC(N(C)C)=CC=C1[C+](C=1C=CC(=CC=1)N(C)C)C1=CC=C(N(C)C)C=C1 ZXJXZNDDNMQXFV-UHFFFAOYSA-M 0.000 description 1
- PDXRQENMIVHKPI-UHFFFAOYSA-N cyclohexane-1,1-diol Chemical compound OC1(O)CCCCC1 PDXRQENMIVHKPI-UHFFFAOYSA-N 0.000 description 1
- PAFZNILMFXTMIY-UHFFFAOYSA-N cyclohexylamine Chemical compound NC1CCCCC1 PAFZNILMFXTMIY-UHFFFAOYSA-N 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 description 1
- QFTYSVGGYOXFRQ-UHFFFAOYSA-N dodecane-1,12-diamine Chemical compound NCCCCCCCCCCCCN QFTYSVGGYOXFRQ-UHFFFAOYSA-N 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- ACCCMOQWYVYDOT-UHFFFAOYSA-N hexane-1,1-diol Chemical compound CCCCCC(O)O ACCCMOQWYVYDOT-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- ZETYUTMSJWMKNQ-UHFFFAOYSA-N n,n',n'-trimethylhexane-1,6-diamine Chemical compound CNCCCCCCN(C)C ZETYUTMSJWMKNQ-UHFFFAOYSA-N 0.000 description 1
- PZNXLZZWWBSQQK-UHFFFAOYSA-N n-(5-benzamido-9,10-dioxoanthracen-1-yl)benzamide Chemical compound C=1C=CC=CC=1C(=O)NC(C=1C(=O)C2=CC=C3)=CC=CC=1C(=O)C2=C3NC(=O)C1=CC=CC=C1 PZNXLZZWWBSQQK-UHFFFAOYSA-N 0.000 description 1
- KYTZHLUVELPASH-UHFFFAOYSA-N naphthalene-1,2-dicarboxylic acid Chemical compound C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 KYTZHLUVELPASH-UHFFFAOYSA-N 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- SXJVFQLYZSNZBT-UHFFFAOYSA-N nonane-1,9-diamine Chemical compound NCCCCCCCCCN SXJVFQLYZSNZBT-UHFFFAOYSA-N 0.000 description 1
- 150000004027 organic amino compounds Chemical class 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- POZPGRADIOPGIR-UHFFFAOYSA-N phenanthrene-1,4-dione Chemical compound C1=CC2=CC=CC=C2C2=C1C(=O)C=CC2=O POZPGRADIOPGIR-UHFFFAOYSA-N 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 229920006139 poly(hexamethylene adipamide-co-hexamethylene terephthalamide) Polymers 0.000 description 1
- 229920006131 poly(hexamethylene isophthalamide-co-terephthalamide) Polymers 0.000 description 1
- 229920006128 poly(nonamethylene terephthalamide) Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920006123 polyhexamethylene isophthalamide Polymers 0.000 description 1
- 102220007331 rs111033633 Human genes 0.000 description 1
- 150000003839 salts Chemical group 0.000 description 1
- 229920006012 semi-aromatic polyamide Polymers 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000000547 substituted alkyl group Chemical group 0.000 description 1
- 125000003107 substituted aryl group Chemical group 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 1
- 235000019801 trisodium phosphate Nutrition 0.000 description 1
- KJPJZBYFYBYKPK-UHFFFAOYSA-N vat yellow 1 Chemical compound C12=CC=CC=C2C(=O)C2=CC=C3N=C4C5=CC=CC=C5C(=O)C5=C4C4=C3C2=C1N=C4C=C5 KJPJZBYFYBYKPK-UHFFFAOYSA-N 0.000 description 1
- GFFQNEGBFFGLQG-UHFFFAOYSA-N vat yellow 2 Chemical compound S1C2=C3C(=O)C4=CC=C5N=C(C=6C=CC=CC=6)SC5=C4C(=O)C3=CC=C2N=C1C1=CC=CC=C1 GFFQNEGBFFGLQG-UHFFFAOYSA-N 0.000 description 1
- 239000004034 viscosity adjusting agent Substances 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
Classifications
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- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
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- C09B67/0004—Coated particulate pigments or dyes
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- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
- C09B5/24—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic rings being only condensed with an anthraquinone nucleus in 1-2 or 2-3 position
- C09B5/44—Azines of the anthracene series
- C09B5/60—Thiazines; Oxazines
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0033—Blends of pigments; Mixtured crystals; Solid solutions
- C09B67/0034—Mixtures of two or more pigments or dyes of the same type
- C09B67/0038—Mixtures of anthraquinones
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
- C09B67/0084—Dispersions of dyes
- C09B67/0085—Non common dispersing agents
- C09B67/009—Non common dispersing agents polymeric dispersing agent
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/28—Cover glass
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/50—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
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- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
- G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
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- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
- G06F1/1679—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts for locking or maintaining the movable parts of the enclosure in a fixed position, e.g. latching mechanism at the edge of the display in a laptop or for the screen protective cover of a PDA
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- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
- G06F1/1681—Details related solely to hinges
-
- 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
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0041—Optical brightening agents, organic pigments
-
- 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
- C08K5/07—Aldehydes; Ketones
- C08K5/08—Quinones
-
- 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
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- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3442—Heterocyclic compounds having nitrogen in the ring having two nitrogen atoms in the ring
- C08K5/3462—Six-membered rings
- C08K5/3465—Six-membered rings condensed with carbocyclic rings
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- 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
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- C08K5/375—Thiols containing six-membered aromatic rings
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- 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
Definitions
- the invention relates to a vehicle, more specifically to a vehicle headlight assembly used thereof.
- a vehicle headlight assembly contains a light, a housing, a bezel and a cover.
- a bezel is metal color to reflect light from a light source and sunlight.
- the other colors of vehicle headlight are required for a variety of designs.
- US2010227183 discloses an automotive headlight extensions, bezels and reflectors that are made from a composition comprising poly(trimethylene terephthalate), trisodium phosphate, a pentaerythritol tetramontanate mold release lubricant and a carbon black.
- the surface of the bezel is plated with a metal coating.
- An objective is to provide a vehicle headlight assembly with sufficient heat resistance.
- An aspect of the invention relates to A vehicle headlight assembly comprising: a light source, a housing supporting the light, a bezel equipped over the front side of the housing, and a transparent cover being equipped over the front side of the bezel, wherein the bezel and optionally the housing comprises a thermoplastic resin and a colorant, wherein the colorant is selected from the group consisting of an anthraquinone dye, an amine salt thereof and a mixture thereof.
- a vehicle bezel comprising a thermoplastic resin and a colorant, wherein the colorant is selected from the group consisting of an anthraquinone dye, an amine salt thereof and a mixture thereof.
- Another aspect of the invention relates to a method of manufacturing a vehicle headlight assembly comprising steps of:
- thermoplastic resin composition comprising a thermoplastic resin and a colorant, wherein the colorant is selected from the group consisting of an anthraquinone dye, an amine salt thereof and a mixture thereof; forming a bezel by injection molding the resin composition; equipping the bezel on the front side of a housing holding a light; and equipping a transparent cover on the front side of the bezel.
- a vehicle headlight assembly with heat resistance can be provided by the present invention.
- FIG. 1 depicts one embodiment of a vehicle headlight assembly.
- the vehicle headlight assembly comprises a light, a housing, a bezel and a transparent cover.
- FIG. 1 illustrates one example of the vehicle headlight assembly 100 .
- the housing 105 holds a light 101 .
- the light 101 contains at least one light source 103 .
- the bezel 111 is equipped on the front side of the housing 105 . “Front side” is a side facing toward the front of the vehicle.
- the bezel 111 has holes 113 that the lights 101 fit in.
- the transparent cover 121 is equipped on the front side of the bezel 111 to cover the lights 113 .
- the bezel 111 and optionally the housing 105 are colored in dark color in an embodiment, dark blue in another embodiment, dark green in another embodiment, dark violet in another embodiment, black in another embodiment.
- the bezel 111 and optionally the housing 105 are not plated with a metal in another embodiment.
- the bezel 111 and optionally the housing 105 comprise a thermoplastic resin and a colorant, wherein the colorant is selected from the group consisting of an anthraquinone dye, an amine salt thereof and a mixture thereof.
- the bezel 111 and optionally the housing 105 are formed by injection molding a resin composition in an embodiment.
- the resin composition comprises the thermoplastic resin and the colorant.
- thermoplastic resin there is no restriction on the thermoplastic resin.
- a wide range of thermoplastic resin useful for molding is available.
- the black colorant is dispersed into the thermoplastic resin to form a resin composition.
- the thermoplastic resin can comprise polyamide, polyester, polyphenylene sulfide, polyacetal, polycarbonate, polysulfone, polyethylene, polyether sulfone, methacrylate, polyamide-imide, fluoroplastic and a mixture thereof in an embodiment.
- the thermoplastic resin can comprise polyamide, polyester and a mixture thereof in another embodiment.
- the thermoplastic resin can comprise polyester in another embodiment.
- the polyamide resin can comprise a condensation product of dicarboxylic acids and diamines, a condensation product of aminocarboxylic acids and ring-opening polymerization products of cyclic lactams in an embodiment.
- the dicarboxylic acids of polyamide can be adipic acid, azelaic acid, sebacic acid, dodecanedioic acid, isophthalic acid and terephthalic acid in an embodiment.
- the diamine can be tetramethylene diamine, hexamethylene diamine, octamethylene diamine, nonamethylene diamine, dodecamethylene diamine, 2-methylpentamethylene diamine, 2-methyloctamethylene diamine, trimethylhexamethylene diamine, bis(p-aminocyclohexyl)methane, m-xylene diamine and p-xylene diamine in an embodiment.
- the aminocarboxylic acid can be 11-aminododecanoic acid in an embodiment.
- the cyclic lactam can be caprolactam or laurolactam in an embodiment.
- the condensation products and ring-opening polymerization products can be aliphatic polyamide, semi-aromatic polyamide, copolymer thereof or a mixture thereof in another embodiment.
- the thermoplastic resin can comprise nylon 6, nylon 66, nylon 46, nylon 610, nylon 612, nylon 11, and nylon 12, polymetaxylene adipamide (nylon MXD6), polyhexamethylene terephthalamide (nylon 6T), polyhexamethylene isophthalamide (nylon 61) a polynonamethylene terephthalamide (nylon 9T), nylon 6/66, nylon 66/6I, nylon 6I/6T, nylon 66/6T or a mixture thereof in another embodiment.
- the thermoplastic resin can comprise polyester in another embodiment.
- the polyester is condensation products of dicarboxylic acids and diols.
- Dicarboxylic acids of polyester can be selected from the group consisting of adipic acid, azelaic acid, sebacic acid, dodecanedioic acid, terephthalic acid, isophthalic acid, naphthalenedicarboxylic acid and diphenyl dicarboxylic acid in an embodiment.
- Diols can be selected from the group consisting of ethylene glycol, propylene glycol, butanediol, hexanediol, neopentyl glycol, cyclohexanediol, and bisphenol A in an embodiment.
- the polyester can be selected from the group consisting of polyethylene terephtalate (PET), polybutylene terephthalate (PBT), Polytrimethylene terephthalate (PTT), polyethylene 2,6-naphthalate (PEN), polybutylene naphthalate (PBN), polycyclohexane dimethylene terephthalate (PCT), a copolymer thereof and a mixture thereof in an embodiment.
- PET polyethylene terephtalate
- PBT polybutylene terephthalate
- PTT Polytrimethylene terephthalate
- PEN polyethylene 2,6-naphthalate
- PBN polybutylene naphthalate
- PCT polycyclohexane dimethylene terephthalate
- a copolymer thereof a mixture thereof in an embodiment.
- some of dicarboxylic acids or some of diols can be added to the condensation products.
- Polyester may be copolymerized a little amount of components like trimesic
- the colorant is selected from the group consisting of an anthraquinone dye, an amine salt thereof and a mixture thereof.
- Anthraquinone is an aromatic organic compound with formula C 14 H 8 O 2 .
- the anthraquinone dye is anthraquinone or a derivative of anthraquinone.
- the anthraquinone dye absorbs the visible light region at less than 700 nm and transmits the light of infra-red region at 800 to 1200 nm in an embodiment.
- the anthraquinone dye can be selected from the group consisting of an anthraquinone green dye, an anthraquinone blue dye, an anthraquinone violet dye, an anthraquinone red dye, an anthraquinone orange dye, an anthraquinone yellow dye and a mixture thereof in another embodiment.
- the anthraquinone dye can be selected from the group consisting of an anthraquinone green dye, an anthraquinone blue dye, an anthraquinone violet dye, an anthraquinone yellow dye and a mixture thereof in another embodiment.
- the anthraquinone green dye can be selected from the group consisting of C.I. Solvent Green 3, 5, 6, 7, 19, 20, 22, 23, 24, 25, 26, 28, 29 and a mixture thereof in another embodiment.
- the anthraquinone blue dye can be selected from the group consisting of C.I. Solvent Blue 11, 12, 13, 14, 16, 17, 18, 19, 20, 21, 35, 36, 40, 41, 45, 58, 59, 63, 65, 68, 69, 74, 76, 78, 79, 80, 82, 83, 84, 85, 86, 87, 90, 91, 92, 93, 94, 95, 96, 97, 98, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 116, 119, 120, 121, 122, 123, 126, 128, 130, 132, 134, 136, 139, C.I. Vat Blue 4, 6, 11, 12, 13, 14 and a mixture thereof in another embodiment.
- the anthraquinone violet dye can be selected from the group consisting of C.I. Solvent Violet 11, 12, 13, 14, 15, 26, 28, 30, 31, 33, 34, 36, 37, 38, 40, 41, 42 and a mixture thereof in another embodiment.
- the anthraquinone red dye can be selected from the group consisting of C.I. Solvent Red 52, 57, 111, 114, 136, 137, 138, 139, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 155, 156, 168, 169, 170, 171, 172, 177, 181, 190, 191, 194, 199, 200, 201 and a mixture thereof in another embodiment.
- the anthraquinone orange dye can be selected from the group consisting of C.I. Solvent Orange 35, 55, 64, 65, 66, 68, 69, 71, 77, 86, 87, 163 and a mixture thereof in another embodiment.
- the anthraquinone yellow dye can be selected from the group consisting of C.I. Solvent Yellow 100, 109, 117, 125, 156, 158, 163 or C.I. Vat Yellow 1, 2, 3 and a mixture thereof in another embodiment.
- the anthraquinone dye can be represented by the following formula [1], formula [II-a] or formula [II-b] in another embodiment.
- R 1 to R 8 is independently H, OH, NH 2 , OCH 3 , OCH 3 , CH 3 NH, C 4 H 9 NH, C 5 H 11 NH, Br, NOC 2 H 4 NH, methylanilino, aniline, benzoylamido, ethylanilino, cyclohexyl amido or phenyloxy.
- R 1 methylanilino R 2 ⁇ R 3 ⁇ R 5 ⁇ R 6 ⁇ R 7 ⁇ R 8 ⁇ H
- R 4 methylanilino R 2 ⁇ R 3 ⁇ R 5 ⁇ R 6 ⁇ R 7 ⁇ R 8 ⁇ H
- R 4 ⁇ OH methylanilino R 2 ⁇ R 3 ⁇ R 5 ⁇ R 6 ⁇ R 7 ⁇ R 8 ⁇ H
- R 1 anilino R 2 ⁇ R 3 ⁇ R 5 ⁇ R 6 ⁇ R 7 ⁇ R 8 ⁇ H
- R 1 benzoylamido R 2 ⁇ R 3 ⁇ R 5 ⁇ R 6 ⁇ R 7 ⁇ R 8 ⁇ H
- R 2 ⁇ R 3 ⁇ R 5 ⁇ R 6 ⁇ R 7 ⁇ R 8 ⁇ H R 1 ⁇ R 4 ⁇ NH 2
- An amine salt of an anthraquinone dye can also be used as a colorant.
- the colorant can comprise a mixture of an anthraquinone dye and an amine salt of an anthraquinone dye in another embodiment.
- the colorant can comprise amine salt of an anthraquinone dye without an anthraquinone dye in another embodiment.
- the amine salt of an anthraquinone dye comprises anthraquinone or an anthraquinone derivative and amine salt.
- the amine salt is a salt formed from amino compound and acid.
- the amine salt of an anthraquinone dye has transmittance at a wavelength of 800 nm to 1200 nm in an embodiment.
- the amine salt of an anthraquinone dye can be represented by the following formula [III] or formula [IV] in another embodiment.
- R 1 to R 8 which may be the same or different, are independently selected from the group consisting of H, alkyl, aryl, alkenyl, alkoxy, amino, hydroxy, halogen atom, acyl, acyloxy, acylamide, acyl-N-alkylamide, carboxyl, alkoxycarbonyl, cyclohexylamide, sulfonyl, formula [1-a], or —Y—W, and at least one of R 1 to R 8 is of formula [III-a]; wherein Y is S, O, or NH; wherein W is selected from unsubstituted or substituted alkyl group, alkenyl group, and unsubstituted or substituted aryl group; wherein (Z)′′+represents ammonium ion or a cation derived from an organic amine compounds or a basic dye; wherein n is 1 or 2, ml is an integer from 1 to 4 and KI is the ratio
- R 9 to R 13 which may be the same or different, are independently selected from the group consisting of H, alkyl, aryl, alkenyl, alkoxy, amino, N-alkylamide, N-arylamide, hydroxy, halogen atom, acyl, acyloxy, acylamide, acyl-N-alkylamide, carboxyl, alkoxycarbonyl, or sulfonyl; wherein at least one of R 1 to R 8 and R 9 to R 13 is sulfonyl group.
- R 47 to R 52 which may be the same or different, are independently selected from the group consisting of H, alkyl, aryl, alkenyl, alkoxy, amino, Nalkylamide, N-arylamide, hydroxy, halogen atom, acyl, acyloxy, acylamide, acyl-Nalkylamide, carboxyl, alkoxycarbonyl, or sulfonyl, and at least one of R 47 to R 52 is of sulfonyl;
- (F) h+ represents ammonium ion or a cation derived from an organic amino compounds or a basic dye wherein h is 1 or 2, m 4 is an integer from 1 to 4 and K 4 is the ratio of m 4 /h; J is following formula [IV-a] or formula [IV-b].
- R 53 to R 54 which may be the same or different, are independently selected from the group consisting of alkyl (having 1 to 8 carbon atoms) or hydrogen.
- Amine of the amine salt can be selected from the group consisting of aliphatic amine, alicyclic amine, alkoxyalkyl amine, amine having alkanol, diamine, amine of guanidine derivatives and aromatic amine in another embodiment.
- the amine salt of an anthraquinone dye can be selected from the group consisting of C.I. basic green dye, C.I. basic blue dye, C.I. basic violet dye, C. I. basic red dye and a mixture thereof in another embodiment.
- C.I. basic green dye can be selected from the group consisting of C.I. basic green 1, 3, 4, 6, 9, 10 and a mixture thereof in an embodiment.
- C.I. basic blue dye C.I. basic blue 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 18, 20, 21, 22, 23, 24, 25, 26, 35, 36, 37, 45, 46, 47, 49, 50, 55, 56, 60, 62, 67, 75, 77, 79, 80, 81, 83, 87, 88, 89, 90, 94, 95, 96, 97 and a mixture thereof in an embodiment.
- C.I. basic violet dye C.I. basic violet 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17, 20, 21, 23, 24, 25, 27, 40 and a mixture thereof in an embodiment.
- C.I. basic red dye C.I. basic red 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 16, 17, 19, 20, 26, 27, 35, 36, 37, 48, 49, 52, 53, 54, 66, 68 and a mixture thereof in an embodiment.
- the colorant can be 0.01 to 12 parts by weight in an embodiment.
- the colorant can be 9 parts by weight or less in another embodiment, 6 parts by weight or less in another embodiment, 4 parts by weight or less in another embodiment, 1.5 parts by weight or less in another embodiment, 1.0 parts by weight or less, 0.5 parts by weight or less in another embodiment, 0.3 parts by weight or less in another embodiment, as the thermoplastic resin is 100 parts by weight.
- the colorant can be 0.05 parts by weight or more in another embodiment, 0.1 parts by weight or more in another embodiment, 0.15 parts by weight or more in another embodiment as the thermoplastic resin is 100 parts by weight.
- the bezel and optionally the housing can comprise an additional colorant in another embodiment.
- the additional colorant can be selected from the group consisting of a perinone dye, an azo dye and a mixture thereof in an embodiment.
- the additional dye can be used in addition to the anthraquinone dye and/or the amine salt of an anthraquinone dye to adjust the color in another embodiment.
- the perinone dye and the azo dye could transmit the light of infra-red region at 800 to 1200 nm in an embodiment.
- the perinone dye can comprise a chemical structure of formula [V] in an embodiment.
- the perinone dye can be represented by formula [VI] in another embodiment.
- P and Q which may be the same or different, are independently constituent units which can be represented by the following formula [VI-a], [VI-b] or [IV-c].
- R 14 to R 29 which may be the same or different, are independently an atom or a group selected from the group consisting of H, halogen atom such as Cl, Br, alkyl group having 1 to 18 carbon atoms, alkoxy group having 1 to 18 carbon atoms, aralkyl group and aryl group; and m 6 is 1 or 2.
- the perinone dye can be selected from the group consisting of C.I. Solvent Orange 60, 78, C.I. Solvent Red 135, 162, 178, 179, C.I. Violet 29, C.I. Pigment Orange 43, C.I. Pigment Red 149 and a mixture thereof in another embodiment.
- Formula [VI-b] Formula [VI-a]: R 18 ⁇ R 19 ⁇ R 20 ⁇ R 21 ⁇ R 22 ⁇ R 23 ⁇ H R 14 ⁇ R 15 ⁇ R 16 ⁇ R 17 ⁇ H
- Formula [VI-b] Formula [VI-c]: R 18 ⁇ R 19 ⁇ R 20 ⁇ R 21 ⁇ R 22 ⁇ R 23 ⁇ H R 24 ⁇ R 25 ⁇ R 26 ⁇ R 27 ⁇ R 28 ⁇ R 29 ⁇ H
- the azo dye comprises at least one azo group (—N ⁇ N—).
- the azo dye can be selected from the group consisting of a monoazo dye, a disazo dye and a mixture thereof in another embodiment.
- the azo dye can be selected from the group consisting of C.I. Solvent Yellow 1, 2, 3, 14, 18, 77, 97; C.I Solvent Red 1, 3, 4, 18, 19, 23, 24, 33; C.I Solvent Orange 2, 3, 7; C.I. Pigment Red 40, 49, 54; C.I. Pigment Yellow 81, 83 and a mixture thereof.
- the azo dye can be represented by formula [VII].
- R 30 and R 31 which may be the same of different, are Cl, SO 2 R 32 , SO 2 (—R 33 )(—R 34 ), or H; wherein R 32 is linear or branched C1-C4 alkyl; R 33 and R 34 , which may be the same or different, are independently hydrogen atom, linear or branched C1-C4 alkyl; L 3 and L 4 are independently O or COO; (D) + is hydrogen ion, cation of alkali metals, ammonium ion, cations of organic amine including aliphatic primary, secondary and tertiary amines, quaternary ammonium ion; K 2 is an integer, m 2 is 0, 1 or 2; M 2 is selected from metals of ionic valency from 2 to 4 (such as Zn, Sr, Cr, Al, Ti, Fe, Zr, Ni, Mn, B and Co), metal of trivalent metal such as Cu or trivalent metal such as Cr, Co, Ni, and
- R 35 and R 37 which may be the same of different, are Cl, SO 2 R 32 , SO 2 (—R 33 )(—R 34 ) or H;
- R 33 and R 34 which may be the same or different, are independently hydrogen atom, linear or branched C1-C4 alkyl;
- R 36 and R 38 which may be the same or different, are independently hydrogen atom, linear or branched C1-C18 alkyl, carboxyl, hydroxyl, C1-C18 alkoxy, amino or halogen atoms.
- the cations in the above-mentioned azo dye of formula [VII] are H + ; cations of alkali metal, ammonium ion, cations of organic amine including aliphatic primary, secondary and tertiary amines, and quaternary ammonium ion.
- Suitable amines for use in producing the above-mentioned monoazo complex dyes and common in dyestuffs include aliphatic amines, alicyclic amines, alkoxyalkyl amines, amines having alkanol, diamine, amines of guanidine derivatives, and aromatic amines.
- the additional colorant can be 0.01 to 3 parts by weight in an embodiment.
- the additional colorant can be 2 parts by weight or less in another embodiment, 1 parts by weight or less in another embodiment, 0.5 parts by weight or less in another embodiment, 0.1 parts by weight or less in another embodiment, as the thermoplastic resin is 100 parts by weight.
- the additional colorant can be 0.01 parts by weight or more in another embodiment, 0.02 parts by weight or more in another embodiment as the thermoplastic resin is 100 parts by weight.
- the colorant comprises an anthraquinone dye only in an embodiment, an anthraquinone dye and the additional dye in another embodiment, an anthraquinone blue dye, anthraquinone red dye and anthraquinone yellow dye in another embodiment, an anthraquinone violet dye and anthraquinone yellow dye in another embodiment, an anthraquinone green dye and anthraquinone red dye in another embodiment, an anthraquinone blue dye, anthraquinone red dye and anthraquinone yellow dye in another embodiment, an anthraquinone green dye, anthraquinone red dye and anthraquinone yellow dye in another embodiment, an anthraquinone blue dye, a perinone red dye and anthraquinone yellow dye in another embodiment, an anthraquinone green dye, a perinone red dye, and anthraquinone blue dye in another embodiment, an anthr
- the total amount of the colorant and the additional colorant can be 0.02 to 15 parts by weight in an embodiment.
- the colorant can be 11 parts by weight or less in another embodiment, 7 parts by weight or less in another embodiment, 4 parts by weight or less in another embodiment, 1.5 parts by weight or less in another embodiment, 0.5 parts by weight or less in another embodiment as the thermoplastic resin is 100 parts by weight.
- the black colorant can be 0.07 parts by weight or more in another embodiment, 0.09 parts by weight or more in another embodiment, 0.1 parts by weight or more in another embodiment, 0.15 parts by weight or more in another embodiment as the thermoplastic resin is 100 parts by weight.
- the bezel and optionally the housing can further comprise inorganic filler in an embodiment.
- the inorganic filler can improve thermal conductivity and/or strength of the molded parts.
- the inorganic filler can be thermal conductive filler in another embodiment.
- the thermal conductive filler can be selected from the group consisting of talc, kaolin, wollastonite, silica, silicon, calcium carbonate, potassium titanate, mica, magnesium oxide, calcium fluoride and a mixture thereof in another embodiment.
- the thermally conductive filler can be selected from the group consisting of talc, mica, kaolin and a mixture thereof in another embodiment.
- the bezel and optionally housing comprises no inorganic filler in another embodiment.
- the inorganic filler is 1 to 80 parts by weight in an embodiment, 3 to 70 parts by weight in an embodiment, 4 to 50 parts by weight in another embodiment, 5 to 25 parts by weight in another embodiment as the thermoplastic resin is 100 parts by weight.
- the inorganic filler can be a reinforcing agent in another embodiment.
- the reinforcing agent can be selected from the group consisting of glass fiber, carbon fiber, glass flake, glass beads and a mixture thereof in an embodiment.
- the reinforcing agent can be glass fiber in another embodiment.
- additive compounds can include flame retardants, impact modifiers, viscosity modifiers, heat resistance improvers, lubricants, antioxidants and UV—and other stabilizers.
- the compositions of the present invention may have such additive compounds in such amounts that they do not harm their characteristic properties.
- thermoplastic resin and the colorant are mixed together to form a resin composition.
- the resin composition is molded into a shape of the bezel and/or the housing.
- the thermoplastic resin can be 50 to 99.95 wt. % based on the weight of the resin composition in an embodiment.
- the thermoplastic resin can be 60 wt. % or more in another embodiment, 70 wt. % or more in another embodiment, 80 wt. % or more in another embodiment, 90 wt. % or more in another embodiment, 99 wt. % or more in another embodiment based on the weight of the resin composition.
- the thermoplastic resin can be 99.9 wt. % or less in another embodiment based on the weight of the resin composition.
- the present invention is illustrated by, but is not limited to, the following examples.
- thermoplastic resin composition was prepared with the following procedure. 100 parts by weight of PBT pellets (Crastin®, E.I. DuPont de Nemours and Co.) and 0.2 parts by weight of a colorant dye were mixed in a stainless tumble mixer with stirring for one hour.
- the colorant dye was a mixture of an anthraquinone blue dye (C. I. Solvent blue 87), an anthraquinone yellow dye (C. I. Solvent yellow 163) and a perinone dye (C. I. Solvent red 179).
- the resin composition was then injection molded to form a plate, 16 mm wide, 16 mm long and 1 mm thick, using K50-C produced by Kawaguchi Steel K.K.
- the cylinder temperature was set to 250° C. Molding temperature was 60° C.
- Thermal conductivity The thermal conductivity of the molding obtained above was measured by a xenon flash apparatus (LFA 447 NanoFlash®, NETZSCH company) according to ASTM E-1461.
- a plate was formed in a same manner as Example 1 except for using different composition as shown in Table 1.
- a colorant was carbon black and additionally a thermal conductive filler (TC filler) such as talc, MgO or CaF 2 was added to the composition.
- TC filler thermal conductive filler
- talc talc
- MgO MgO
- CaF 2 thermal conductive filler
- thermoplastic resin composition of Example 2 and Comparative Example 6 was prepared in the same manner of Example 1 and Comparative Example 1 respectively.
- the thermoplastic resin composition was prepared in the same manner of Example 1 except for increasing the dye amount to 0.3 parts by weight as shown in Table 7.
Abstract
Description
- This application claims the benefit of U.S. Provisional Application No. 62/311,531, filed Mar. 22, 2016. Which is incorporated.by reference herein in its entirety.
- The invention relates to a vehicle, more specifically to a vehicle headlight assembly used thereof.
- A vehicle headlight assembly contains a light, a housing, a bezel and a cover. Usually a bezel is metal color to reflect light from a light source and sunlight. The other colors of vehicle headlight are required for a variety of designs.
- US2010227183 discloses an automotive headlight extensions, bezels and reflectors that are made from a composition comprising poly(trimethylene terephthalate), trisodium phosphate, a pentaerythritol tetramontanate mold release lubricant and a carbon black. The surface of the bezel is plated with a metal coating.
- An objective is to provide a vehicle headlight assembly with sufficient heat resistance.
- An aspect of the invention relates to A vehicle headlight assembly comprising: a light source, a housing supporting the light, a bezel equipped over the front side of the housing, and a transparent cover being equipped over the front side of the bezel, wherein the bezel and optionally the housing comprises a thermoplastic resin and a colorant, wherein the colorant is selected from the group consisting of an anthraquinone dye, an amine salt thereof and a mixture thereof.
- Another aspect of the invention relates to a vehicle bezel comprising a thermoplastic resin and a colorant, wherein the colorant is selected from the group consisting of an anthraquinone dye, an amine salt thereof and a mixture thereof.
- Another aspect of the invention relates to a method of manufacturing a vehicle headlight assembly comprising steps of:
- preparing a thermoplastic resin composition comprising a thermoplastic resin and a colorant, wherein the colorant is selected from the group consisting of an anthraquinone dye, an amine salt thereof and a mixture thereof;
forming a bezel by injection molding the resin composition;
equipping the bezel on the front side of a housing holding a light; and equipping a transparent cover on the front side of the bezel. - A vehicle headlight assembly with heat resistance can be provided by the present invention.
-
FIG. 1 depicts one embodiment of a vehicle headlight assembly. - The vehicle headlight assembly comprises a light, a housing, a bezel and a transparent cover.
FIG. 1 illustrates one example of thevehicle headlight assembly 100. Thehousing 105 holds alight 101. Thelight 101 contains at least onelight source 103. Thebezel 111 is equipped on the front side of thehousing 105. “Front side” is a side facing toward the front of the vehicle. Thebezel 111 hasholes 113 that thelights 101 fit in. Thetransparent cover 121 is equipped on the front side of thebezel 111 to cover thelights 113. Thebezel 111 and optionally thehousing 105 are colored in dark color in an embodiment, dark blue in another embodiment, dark green in another embodiment, dark violet in another embodiment, black in another embodiment. Thebezel 111 and optionally thehousing 105 are not plated with a metal in another embodiment. - The
bezel 111 and optionally thehousing 105 comprise a thermoplastic resin and a colorant, wherein the colorant is selected from the group consisting of an anthraquinone dye, an amine salt thereof and a mixture thereof. - The
bezel 111 and optionally thehousing 105 are formed by injection molding a resin composition in an embodiment. The resin composition comprises the thermoplastic resin and the colorant. - There is no restriction on the thermoplastic resin. A wide range of thermoplastic resin useful for molding is available. The black colorant is dispersed into the thermoplastic resin to form a resin composition.
- The thermoplastic resin can comprise polyamide, polyester, polyphenylene sulfide, polyacetal, polycarbonate, polysulfone, polyethylene, polyether sulfone, methacrylate, polyamide-imide, fluoroplastic and a mixture thereof in an embodiment. The thermoplastic resin can comprise polyamide, polyester and a mixture thereof in another embodiment. The thermoplastic resin can comprise polyester in another embodiment.
- The polyamide resin can comprise a condensation product of dicarboxylic acids and diamines, a condensation product of aminocarboxylic acids and ring-opening polymerization products of cyclic lactams in an embodiment.
- The dicarboxylic acids of polyamide can be adipic acid, azelaic acid, sebacic acid, dodecanedioic acid, isophthalic acid and terephthalic acid in an embodiment. The diamine can be tetramethylene diamine, hexamethylene diamine, octamethylene diamine, nonamethylene diamine, dodecamethylene diamine, 2-methylpentamethylene diamine, 2-methyloctamethylene diamine, trimethylhexamethylene diamine, bis(p-aminocyclohexyl)methane, m-xylene diamine and p-xylene diamine in an embodiment. The aminocarboxylic acid can be 11-aminododecanoic acid in an embodiment. The cyclic lactam can be caprolactam or laurolactam in an embodiment.
- The condensation products and ring-opening polymerization products can be aliphatic polyamide, semi-aromatic polyamide, copolymer thereof or a mixture thereof in another embodiment. The thermoplastic resin can comprise nylon 6, nylon 66, nylon 46, nylon 610, nylon 612, nylon 11, and nylon 12, polymetaxylene adipamide (nylon MXD6), polyhexamethylene terephthalamide (nylon 6T), polyhexamethylene isophthalamide (nylon 61) a polynonamethylene terephthalamide (nylon 9T), nylon 6/66, nylon 66/6I, nylon 6I/6T, nylon 66/6T or a mixture thereof in another embodiment.
- The thermoplastic resin can comprise polyester in another embodiment. The polyester is condensation products of dicarboxylic acids and diols. Dicarboxylic acids of polyester can be selected from the group consisting of adipic acid, azelaic acid, sebacic acid, dodecanedioic acid, terephthalic acid, isophthalic acid, naphthalenedicarboxylic acid and diphenyl dicarboxylic acid in an embodiment. Diols can be selected from the group consisting of ethylene glycol, propylene glycol, butanediol, hexanediol, neopentyl glycol, cyclohexanediol, and bisphenol A in an embodiment.
- The polyester can be selected from the group consisting of polyethylene terephtalate (PET), polybutylene terephthalate (PBT), Polytrimethylene terephthalate (PTT), polyethylene 2,6-naphthalate (PEN), polybutylene naphthalate (PBN), polycyclohexane dimethylene terephthalate (PCT), a copolymer thereof and a mixture thereof in an embodiment. As the examples of the copolymers, some of dicarboxylic acids or some of diols can be added to the condensation products. Polyester may be copolymerized a little amount of components like trimesic acid, trimellitic acid, pyromellitic acid, glycerol, and pentaerythritol which have more than three functional groups in another embodiment.
- The colorant is selected from the group consisting of an anthraquinone dye, an amine salt thereof and a mixture thereof. Anthraquinone is an aromatic organic compound with formula C14H8O2. The anthraquinone dye is anthraquinone or a derivative of anthraquinone.
- The anthraquinone dye absorbs the visible light region at less than 700 nm and transmits the light of infra-red region at 800 to 1200 nm in an embodiment.
- The anthraquinone dye can be selected from the group consisting of an anthraquinone green dye, an anthraquinone blue dye, an anthraquinone violet dye, an anthraquinone red dye, an anthraquinone orange dye, an anthraquinone yellow dye and a mixture thereof in another embodiment. The anthraquinone dye can be selected from the group consisting of an anthraquinone green dye, an anthraquinone blue dye, an anthraquinone violet dye, an anthraquinone yellow dye and a mixture thereof in another embodiment.
- The anthraquinone green dye can be selected from the group consisting of C.I. Solvent Green 3, 5, 6, 7, 19, 20, 22, 23, 24, 25, 26, 28, 29 and a mixture thereof in another embodiment.
- The anthraquinone blue dye can be selected from the group consisting of C.I.
Solvent Blue - The anthraquinone violet dye can be selected from the group consisting of C.I. Solvent Violet 11, 12, 13, 14, 15, 26, 28, 30, 31, 33, 34, 36, 37, 38, 40, 41, 42 and a mixture thereof in another embodiment.
- The anthraquinone red dye can be selected from the group consisting of C.I.
Solvent Red 52, 57, 111, 114, 136, 137, 138, 139, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 155, 156, 168, 169, 170, 171, 172, 177, 181, 190, 191, 194, 199, 200, 201 and a mixture thereof in another embodiment. - The anthraquinone orange dye can be selected from the group consisting of C.I. Solvent Orange 35, 55, 64, 65, 66, 68, 69, 71, 77, 86, 87, 163 and a mixture thereof in another embodiment.
- The anthraquinone yellow dye can be selected from the group consisting of C.I.
Solvent Yellow 100, 109, 117, 125, 156, 158, 163 or C.I. Vat Yellow 1, 2, 3 and a mixture thereof in another embodiment. - The anthraquinone dye can be represented by the following formula [1], formula [II-a] or formula [II-b] in another embodiment.
- wherein R1 to R8 is independently H, OH, NH2, OCH3, OCH3, CH3NH, C4H9NH, C5H11NH, Br, NOC2H4NH, methylanilino, aniline, benzoylamido, ethylanilino, cyclohexyl amido or phenyloxy.
- Examples of anthraquinone dye of formula [I] are shown below.
-
TABLE 1 R1, R2, R3, R4, R5, R6, R7, R8 R2═R3═R4═R5═R6═R7═R8═H, R1 = methylanilino R2═R3═R5═R6═R7═R8═H, R4═OH, R1 = methylanilino R2═R3═R5═R6═R7═R8═H, R4═NH2, R1 = anilino R2═R3═R5═R6═R7═R8═H, R4═OCH3, R1 = benzoylamido R2═R3═R5═R6═R7═R8═H, R1═R4═NH2 R2═R3═R5═R6═R7═R8═H, R4═NH2, R1 = cyclohexyl amido R2═R3═R5═R6═R7═R8═H, R4═NH2, R1═CH3NH R2═R3═R5═R6═R7═R8═H, R1═R4═C4H9NH - An amine salt of an anthraquinone dye can also be used as a colorant. The colorant can comprise a mixture of an anthraquinone dye and an amine salt of an anthraquinone dye in another embodiment. The colorant can comprise amine salt of an anthraquinone dye without an anthraquinone dye in another embodiment. The amine salt of an anthraquinone dye comprises anthraquinone or an anthraquinone derivative and amine salt. The amine salt is a salt formed from amino compound and acid. The amine salt of an anthraquinone dye has transmittance at a wavelength of 800 nm to 1200 nm in an embodiment.
- The amine salt of an anthraquinone dye can be represented by the following formula [III] or formula [IV] in another embodiment.
- wherein R1 to R8, which may be the same or different, are independently selected from the group consisting of H, alkyl, aryl, alkenyl, alkoxy, amino, hydroxy, halogen atom, acyl, acyloxy, acylamide, acyl-N-alkylamide, carboxyl, alkoxycarbonyl, cyclohexylamide, sulfonyl, formula [1-a], or —Y—W, and at least one of R1 to R8 is of formula [III-a]; wherein Y is S, O, or NH; wherein W is selected from unsubstituted or substituted alkyl group, alkenyl group, and unsubstituted or substituted aryl group; wherein (Z)″+represents ammonium ion or a cation derived from an organic amine compounds or a basic dye; wherein n is 1 or 2, ml is an integer from 1 to 4 and KI is the ratio of ml/n; and wherein
- wherein X is O or NH, and R9 to R13, which may be the same or different, are independently selected from the group consisting of H, alkyl, aryl, alkenyl, alkoxy, amino, N-alkylamide, N-arylamide, hydroxy, halogen atom, acyl, acyloxy, acylamide, acyl-N-alkylamide, carboxyl, alkoxycarbonyl, or sulfonyl; wherein at least one of R1 to R8 and R9 to R13 is sulfonyl group.
- wherein R47 to R52, which may be the same or different, are independently selected from the group consisting of H, alkyl, aryl, alkenyl, alkoxy, amino, Nalkylamide, N-arylamide, hydroxy, halogen atom, acyl, acyloxy, acylamide, acyl-Nalkylamide, carboxyl, alkoxycarbonyl, or sulfonyl, and at least one of R47 to R52 is of sulfonyl; (F)h+ represents ammonium ion or a cation derived from an organic amino compounds or a basic dye wherein h is 1 or 2, m4 is an integer from 1 to 4 and K4 is the ratio of m4/h; J is following formula [IV-a] or formula [IV-b].
- wherein R53 to R54, which may be the same or different, are independently selected from the group consisting of alkyl (having 1 to 8 carbon atoms) or hydrogen.
- Amine of the amine salt can be selected from the group consisting of aliphatic amine, alicyclic amine, alkoxyalkyl amine, amine having alkanol, diamine, amine of guanidine derivatives and aromatic amine in another embodiment.
- The amine salt of an anthraquinone dye, as listed in the color index, can be selected from the group consisting of C.I. basic green dye, C.I. basic blue dye, C.I. basic violet dye, C. I. basic red dye and a mixture thereof in another embodiment.
- C.I. basic green dye can be selected from the group consisting of C.I. basic green 1, 3, 4, 6, 9, 10 and a mixture thereof in an embodiment.
- C.I. basic blue dye: C.I. basic blue 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 18, 20, 21, 22, 23, 24, 25, 26, 35, 36, 37, 45, 46, 47, 49, 50, 55, 56, 60, 62, 67, 75, 77, 79, 80, 81, 83, 87, 88, 89, 90, 94, 95, 96, 97 and a mixture thereof in an embodiment.
- C.I. basic violet dye: C.I. basic violet 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17, 20, 21, 23, 24, 25, 27, 40 and a mixture thereof in an embodiment.
- C.I. basic red dye: C.I. basic red 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 16, 17, 19, 20, 26, 27, 35, 36, 37, 48, 49, 52, 53, 54, 66, 68 and a mixture thereof in an embodiment.
- Examples of the amine salt anthraquinone dye of formula [III] are given below in Table 2.
-
TABLE 2 R1, R2, R3, R4, R5, R6, R7, R8 K1(Z)n+ R2═R5═R6═R7═R8═H, R4═OH, Rosin anmmonium R1═R3 = Formula [III-a]: X═NH, R11═NO2, R9═SO3 −, R10═R12═R13═H R2═R3═R5═R6═R7═R8═H, H3N + ((CH2)6NH R4═OH, R1 = Formula [III-a]: X═NH, R11═CH3, R9═SO3 −, R10═R12═R13═H R2═R3═R5═R6═R7═R8═H, C12H25N + H3 R1 = Formula [III-a], R4═Y—W: X═NH, R11═CH3, R9═SO3 −, R10═R12═R13═H, Y═NH, W═CH3 R2═R3═R5═R6═R7═R8═H, (C4H9)4N+ R1═R4 = Formula [III-a]: X═NH, R11═CH3, R9═SO3H, R10═R12═R13═H R2═R3═R5═R6═R7═R8═H, H3N + ((CH2)6NH2 R1═R4 = Formula [III-a]: X═NH, R9═R11═R13═CH3, R12═SO3H, R10═H R2═R3═R5═R6═R7═R8═H, (N + H3)2CNH R1═R4 = Formula [III-a]: X═NH, R11═CH3, R9═SO3 −, R10═R12═R13═H R2═R3═R5═R6═R7═R8═H, H3N + (CH2)6NH2 R1═R4 = Formula [III-a]: X═NH, R11═C4H9 R9═SO3H, R10═R12═R13═H - Examples of the amine salt anthraquinone dye of formula [IV] are given in Table 3 below.
-
TABLE 3 J R47 R48 R49 R50 R51 R52 K4(F)h+ Formula [IV-a] SO3 − NH2 H SO3 − NH2 H 2(H3N+(CH2)6NH2) Formula [IV-a] SO3 − NH2 H SO3H NH2 H H3N+(CH2)6NH2 Formula [IV-a] SO3 − OH H SO3H OH H C12H25N+H3 Formula [IV-b], SO3 − NH2 H NH2 Cl H C2H5OC3H6N+H3 R53═R54═H Formula [IV-b], SO3 − NH2 H SO3 − NH2 H H3N+(CH2)4N+H3 R53═R54═CH, Formula [IV-b], SO3 − NH2 H SO3H NH2 H Rosin anmmonium R53═R54═CH, Formula [IV-b], SO3 − NH2 H SO3H NH2 H H3N+(CH2)6NH2 R53═R54═H Formula [IV-b], SO3 − OH OCH3 SO3H OH OCH3 (C4H9)4N+ R53═H, R54═phenyl - The colorant can be 0.01 to 12 parts by weight in an embodiment. The colorant can be 9 parts by weight or less in another embodiment, 6 parts by weight or less in another embodiment, 4 parts by weight or less in another embodiment, 1.5 parts by weight or less in another embodiment, 1.0 parts by weight or less, 0.5 parts by weight or less in another embodiment, 0.3 parts by weight or less in another embodiment, as the thermoplastic resin is 100 parts by weight. The colorant can be 0.05 parts by weight or more in another embodiment, 0.1 parts by weight or more in another embodiment, 0.15 parts by weight or more in another embodiment as the thermoplastic resin is 100 parts by weight.
- The bezel and optionally the housing can comprise an additional colorant in another embodiment. The additional colorant can be selected from the group consisting of a perinone dye, an azo dye and a mixture thereof in an embodiment. The additional dye can be used in addition to the anthraquinone dye and/or the amine salt of an anthraquinone dye to adjust the color in another embodiment. The perinone dye and the azo dye could transmit the light of infra-red region at 800 to 1200 nm in an embodiment.
- The perinone dye can comprise a chemical structure of formula [V] in an embodiment.
- The perinone dye can be represented by formula [VI] in another embodiment.
- wherein P and Q, which may be the same or different, are independently constituent units which can be represented by the following formula [VI-a], [VI-b] or [IV-c].
- wherein R14 to R29, which may be the same or different, are independently an atom or a group selected from the group consisting of H, halogen atom such as Cl, Br, alkyl group having 1 to 18 carbon atoms, alkoxy group having 1 to 18 carbon atoms, aralkyl group and aryl group; and m6 is 1 or 2.
- The perinone dye can be selected from the group consisting of C.I. Solvent Orange 60, 78, C.I. Solvent Red 135, 162, 178, 179, C.I. Violet 29, C.I. Pigment Orange 43, C.I. Pigment Red 149 and a mixture thereof in another embodiment.
- Examples of the perinone dye of formula [VI] are illustrated in Table 4 below.
-
TABLE 4 P Q Formula [VI-b]: Formula [VI-a]: R18═R19═R20═R21═R22═R23═H R14═R15═R16═R17═H Formula [VI-b]: Formula [VI-a]: R18═R19═R20═R21═R22═R23═H R14═R15═R16═R17═Cl Formula [VI-b]: Formula [VI-c]: R18═R19═R20═R21═R22═R23═H R24═R25═R26═R27═R28═R29═H Formula [VI-a]: Formula [VI-b]: R14═R15═R16═R17═H R18═R19═R20═R21═R22═R23═H Formula [VI-b]: Formula [VI-c]: R18═R19═R20═R21═R22═R23═H R24═R26═R27═R28═R29═H, R25═OC2H5 Formula [VI-b]: Formula [VI-a]: R18═R19═R20═R21═R22═R23═H R14═R15═R17═H, R16 = benzoyl Formula [VI-b]: Formula [VI-a]: R18═R19═R20═R22═R23═H, R14═R17═H R21═C4H9 Formula [VI-b]: Formula [VI-c]: R18═R19═R20═R21═R22═R23═H R24═R26═R27═R28═R29═R25 = phenyl Formula [VI-b]: Formula [VI-a]: R18═R19═R20═R21═R22═R23═H R15═R16═R17═H, R14═Br Formula [VI-b]: Formula [VI-a]: R18═R19═R20═R21═R22═R23═H R15═R16═R17═H, R14═COOH - The azo dye comprises at least one azo group (—N═N—). The azo dye can be selected from the group consisting of a monoazo dye, a disazo dye and a mixture thereof in another embodiment.
- The azo dye can be selected from the group consisting of C.I. Solvent Yellow 1, 2, 3, 14, 18, 77, 97; C.I Solvent Red 1, 3, 4, 18, 19, 23, 24, 33; C.I Solvent Orange 2, 3, 7; C.I. Pigment Red 40, 49, 54; C.I. Pigment Yellow 81, 83 and a mixture thereof.
- The azo dye can be represented by formula [VII].
- wherein R30 and R31, which may be the same of different, are Cl, SO2R32, SO2(—R33)(—R34), or H; wherein R32 is linear or branched C1-C4 alkyl; R33 and R34, which may be the same or different, are independently hydrogen atom, linear or branched C1-C4 alkyl; L3 and L4 are independently O or COO; (D)+ is hydrogen ion, cation of alkali metals, ammonium ion, cations of organic amine including aliphatic primary, secondary and tertiary amines, quaternary ammonium ion; K2 is an integer, m2 is 0, 1 or 2; M2 is selected from metals of ionic valency from 2 to 4 (such as Zn, Sr, Cr, Al, Ti, Fe, Zr, Ni, Mn, B and Co), metal of trivalent metal such as Cu or trivalent metal such as Cr, Co, Ni, and Al; B1 and B2 are represented by formula [VII-a] or formula [VII-b].
- wherein R35 and R37, which may be the same of different, are Cl, SO2R32, SO2(—R33)(—R34) or H; R33 and R34, which may be the same or different, are independently hydrogen atom, linear or branched C1-C4 alkyl; and R36 and R38, which may be the same or different, are independently hydrogen atom, linear or branched C1-C18 alkyl, carboxyl, hydroxyl, C1-C18 alkoxy, amino or halogen atoms.
- The cations in the above-mentioned azo dye of formula [VII] are H+; cations of alkali metal, ammonium ion, cations of organic amine including aliphatic primary, secondary and tertiary amines, and quaternary ammonium ion. Suitable amines for use in producing the above-mentioned monoazo complex dyes and common in dyestuffs include aliphatic amines, alicyclic amines, alkoxyalkyl amines, amines having alkanol, diamine, amines of guanidine derivatives, and aromatic amines.
- Examples of the azo dye of formula [VIII] wherein B1 and B2 are of the formula [VIII-a] are indicated as below formula [VIII-c].
- Examples of the azo dye of formula [VIII-c] are illustrated in Table 5.
-
TABLE 5 R30 R31 R35 R36 M2 L3 L4 m2 K2(D)+ H H H H Cr COO COO 1 H+ Cl Cl SO2NH2 H Cr O O 1 H+ SO2NH2 SO2NH2 SO2NH2 H Cr O O 1 H+ Cl Cl SO2NH2 H Co O O 1 H+ SO2NH2 SO2NH2 H H Ni O O 1 H+ H H SO2NH2 H Cu COO COO 1 H+ H H H H Cr COO COO 1 C4H9CH(C2H5)OC3H6N+H3 Cl Cl SO2NH2 H Cu O O 1 C12H25N+H2(CH2CH2O)2H Cl Cl SO2NH2 H Cr O O 1 Na+ Cl SO2NH2 H Cl Co O O 1 H+ - The additional colorant can be 0.01 to 3 parts by weight in an embodiment. The additional colorant can be 2 parts by weight or less in another embodiment, 1 parts by weight or less in another embodiment, 0.5 parts by weight or less in another embodiment, 0.1 parts by weight or less in another embodiment, as the thermoplastic resin is 100 parts by weight. The additional colorant can be 0.01 parts by weight or more in another embodiment, 0.02 parts by weight or more in another embodiment as the thermoplastic resin is 100 parts by weight.
- There are various examples of combinations of the colorant. For instance, the colorant comprises an anthraquinone dye only in an embodiment, an anthraquinone dye and the additional dye in another embodiment, an anthraquinone blue dye, anthraquinone red dye and anthraquinone yellow dye in another embodiment, an anthraquinone violet dye and anthraquinone yellow dye in another embodiment, an anthraquinone green dye and anthraquinone red dye in another embodiment, an anthraquinone blue dye, anthraquinone red dye and anthraquinone yellow dye in another embodiment, an anthraquinone green dye, anthraquinone red dye and anthraquinone yellow dye in another embodiment, an anthraquinone blue dye, a perinone red dye and anthraquinone yellow dye in another embodiment, an anthraquinone green dye, a perinone red dye, and anthraquinone yellow dye in another embodiment, an anthraquinone green dye and an azo red dye in another embodiment.
- The total amount of the colorant and the additional colorant can be 0.02 to 15 parts by weight in an embodiment. The colorant can be 11 parts by weight or less in another embodiment, 7 parts by weight or less in another embodiment, 4 parts by weight or less in another embodiment, 1.5 parts by weight or less in another embodiment, 0.5 parts by weight or less in another embodiment as the thermoplastic resin is 100 parts by weight. The black colorant can be 0.07 parts by weight or more in another embodiment, 0.09 parts by weight or more in another embodiment, 0.1 parts by weight or more in another embodiment, 0.15 parts by weight or more in another embodiment as the thermoplastic resin is 100 parts by weight.
- The bezel and optionally the housing can further comprise inorganic filler in an embodiment. The inorganic filler can improve thermal conductivity and/or strength of the molded parts. The inorganic filler can be thermal conductive filler in another embodiment. The thermal conductive filler can be selected from the group consisting of talc, kaolin, wollastonite, silica, silicon, calcium carbonate, potassium titanate, mica, magnesium oxide, calcium fluoride and a mixture thereof in another embodiment. The thermally conductive filler can be selected from the group consisting of talc, mica, kaolin and a mixture thereof in another embodiment. The bezel and optionally housing comprises no inorganic filler in another embodiment.
- The inorganic filler is 1 to 80 parts by weight in an embodiment, 3 to 70 parts by weight in an embodiment, 4 to 50 parts by weight in another embodiment, 5 to 25 parts by weight in another embodiment as the thermoplastic resin is 100 parts by weight.
- The inorganic filler can be a reinforcing agent in another embodiment. The reinforcing agent can be selected from the group consisting of glass fiber, carbon fiber, glass flake, glass beads and a mixture thereof in an embodiment. The reinforcing agent can be glass fiber in another embodiment.
- One or more optional compounds selected from a wide variety of materials tailored for different applications of the resin compositions can be contained in the composition according to the present invention. Typically, additive compounds can include flame retardants, impact modifiers, viscosity modifiers, heat resistance improvers, lubricants, antioxidants and UV—and other stabilizers. The compositions of the present invention may have such additive compounds in such amounts that they do not harm their characteristic properties. These and other additives are used in accordance with accepted practices as understood by those having skill in the art.
- The thermoplastic resin and the colorant are mixed together to form a resin composition. The resin composition is molded into a shape of the bezel and/or the housing.
- The thermoplastic resin can be 50 to 99.95 wt. % based on the weight of the resin composition in an embodiment. The thermoplastic resin can be 60 wt. % or more in another embodiment, 70 wt. % or more in another embodiment, 80 wt. % or more in another embodiment, 90 wt. % or more in another embodiment, 99 wt. % or more in another embodiment based on the weight of the resin composition. The thermoplastic resin can be 99.9 wt. % or less in another embodiment based on the weight of the resin composition.
- The present invention is illustrated by, but is not limited to, the following examples.
- The thermoplastic resin composition was prepared with the following procedure. 100 parts by weight of PBT pellets (Crastin®, E.I. DuPont de Nemours and Co.) and 0.2 parts by weight of a colorant dye were mixed in a stainless tumble mixer with stirring for one hour. The colorant dye was a mixture of an anthraquinone blue dye (C. I. Solvent blue 87), an anthraquinone yellow dye (C. I. Solvent yellow 163) and a perinone dye (C. I. Solvent red 179). The weight ratio of the colorants was blue:yellow:red=3.8:2.3:1.5. The resin composition was then injection molded to form a plate, 16 mm wide, 16 mm long and 1 mm thick, using K50-C produced by Kawaguchi Steel K.K. The cylinder temperature was set to 250° C. Molding temperature was 60° C.
- Thermal conductivity (TC): The thermal conductivity of the molding obtained above was measured by a xenon flash apparatus (LFA 447 NanoFlash®, NETZSCH company) according to ASTM E-1461. Surface temperature (ST): The plates were exposed to 1 W near-infrared laser of wave length of 940 nm for 3 seconds.
- A plate was formed in a same manner as Example 1 except for using different composition as shown in Table 1. A colorant was carbon black and additionally a thermal conductive filler (TC filler) such as talc, MgO or CaF2 was added to the composition. TC and ST were measured as well as Example 1.
- Thermal conductivity of the plate was higher in Comparative Example (Com. Ex.) 2 to 5 where the plate comprised the TC filler than the plate in Comparative example 1 and Example (Ex.) 1 where the composition did not contain the TC filler as shown in Table 6.
- However, surface temperature (ST) was lower in Example 1 using the anthraquinone dye than the other plates in Comparative Example 1 to 5 using the carbon black and the TC filler.
-
TABLE 6 (parts by weight) Com. Com. Com. Com. Com. Composition Ex. 1 Ex. 2 Ex. 3 Ex. 4 Ex. 5 Ex. 1 PBT 100 100 100 100 100 100 Colorant C-black 0.5 0.7 0.8 0.8 0.8 0.0 Dye 0.0 0.0 0.0 0.0 0.0 0.2 TC Talc 0.0 33.6 67.2 0.0 0.0 0.0 filler MgO 0.0 0.0 0.0 67.2 0.0 0.0 CaF2 0.0 0.0 0.0 0.0 67.2 0.0 TC (W/mK) 0.7 1.1 1.2 1.1 0.9 0.7 ST (° C.) 359 251 223 217 252 200 - The thermoplastic resin composition of Example 2 and Comparative Example 6 was prepared in the same manner of Example 1 and Comparative Example 1 respectively. In Example 3, the thermoplastic resin composition was prepared in the same manner of Example 1 except for increasing the dye amount to 0.3 parts by weight as shown in Table 7.
- Surface temperature (ST): The plates were exposed to 30 W light of a xenon lamp concentrated to a circular area of 2.5 mm diameter on each plates for 3 seconds. The results are shown in Table 7 as relative values when the ST of Comparative Example 6 is 100.
- Surface temperature (ST) was lower in Example 2 and 3 using the anthraquinone dye than Comparative Example 6 using the carbon black.
-
TABLE 7 (parts by weight) Composition Com. Ex. 6 Ex. 2 Ex. 3 PBT 100 100 100 Colorant C-black 0.5 0.0 0.0 Dye 0.0 0.2 0.3 ST (° C.)* 100 69 72 *Relative value when the ST of Comparative Example 6 is 100.
Claims (13)
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US201662311531P | 2016-03-22 | 2016-03-22 | |
PCT/US2017/023141 WO2017165263A1 (en) | 2016-03-22 | 2017-03-20 | Vehicle headlight assembly |
US201816084286A | 2018-09-12 | 2018-09-12 | |
US17/490,166 US20230104878A1 (en) | 2016-03-22 | 2021-09-30 | Vehicle headlight assembly |
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US20190079562A1 (en) | 2019-03-14 |
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