JP5270948B2 - Polyolefin resin composition and lighting apparatus - Google Patents
Polyolefin resin composition and lighting apparatus Download PDFInfo
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- JP5270948B2 JP5270948B2 JP2008097447A JP2008097447A JP5270948B2 JP 5270948 B2 JP5270948 B2 JP 5270948B2 JP 2008097447 A JP2008097447 A JP 2008097447A JP 2008097447 A JP2008097447 A JP 2008097447A JP 5270948 B2 JP5270948 B2 JP 5270948B2
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- 229920005672 polyolefin resin Polymers 0.000 title claims abstract description 36
- 239000011342 resin composition Substances 0.000 title claims abstract description 34
- 125000001424 substituent group Chemical group 0.000 claims abstract description 15
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000012964 benzotriazole Substances 0.000 claims abstract description 14
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 10
- 125000001309 chloro group Chemical group Cl* 0.000 claims abstract description 9
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 8
- 125000001183 hydrocarbyl group Chemical group 0.000 claims abstract description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 6
- 239000001257 hydrogen Substances 0.000 claims abstract description 6
- 229920000098 polyolefin Polymers 0.000 claims abstract description 6
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 29
- 238000002834 transmittance Methods 0.000 claims description 21
- -1 octoxy group Chemical group 0.000 claims description 10
- 239000004611 light stabiliser Substances 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 150000001412 amines Chemical class 0.000 claims description 4
- OCWYEMOEOGEQAN-UHFFFAOYSA-N bumetrizole Chemical compound CC(C)(C)C1=CC(C)=CC(N2N=C3C=C(Cl)C=CC3=N2)=C1O OCWYEMOEOGEQAN-UHFFFAOYSA-N 0.000 claims description 3
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 3
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- 230000002745 absorbent Effects 0.000 claims description 2
- 239000002250 absorbent Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 11
- 239000000126 substance Substances 0.000 abstract description 9
- 230000007774 longterm Effects 0.000 abstract description 5
- 239000006096 absorbing agent Substances 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 description 18
- 239000011347 resin Substances 0.000 description 18
- 241000238631 Hexapoda Species 0.000 description 10
- 239000004743 Polypropylene Substances 0.000 description 7
- 238000002845 discoloration Methods 0.000 description 7
- 238000011156 evaluation Methods 0.000 description 7
- 239000000654 additive Substances 0.000 description 6
- 229920001155 polypropylene Polymers 0.000 description 6
- 230000000996 additive effect Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 239000004925 Acrylic resin Substances 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000000749 insecticidal effect Effects 0.000 description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 229920001519 homopolymer Polymers 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000006259 organic additive Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 229920005668 polycarbonate resin Polymers 0.000 description 2
- 239000004431 polycarbonate resin Substances 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- SWZOQAGVRGQLDV-UHFFFAOYSA-N 4-[2-(4-hydroxy-2,2,6,6-tetramethylpiperidin-1-yl)ethoxy]-4-oxobutanoic acid Chemical compound CC1(C)CC(O)CC(C)(C)N1CCOC(=O)CCC(O)=O SWZOQAGVRGQLDV-UHFFFAOYSA-N 0.000 description 1
- UWSMKYBKUPAEJQ-UHFFFAOYSA-N 5-Chloro-2-(3,5-di-tert-butyl-2-hydroxyphenyl)-2H-benzotriazole Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC(N2N=C3C=C(Cl)C=CC3=N2)=C1O UWSMKYBKUPAEJQ-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- VVOLVFOSOPJKED-UHFFFAOYSA-N copper phthalocyanine Chemical compound [Cu].N=1C2=NC(C3=CC=CC=C33)=NC3=NC(C3=CC=CC=C33)=NC3=NC(C3=CC=CC=C33)=NC3=NC=1C1=CC=CC=C12 VVOLVFOSOPJKED-UHFFFAOYSA-N 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- MCPKSFINULVDNX-UHFFFAOYSA-N drometrizole Chemical compound CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MCPKSFINULVDNX-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 1
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Abstract
Description
本発明は、ポリオレフィン樹脂を用いた低誘虫性の照明器具カバー材料及び照明器具カバー並びに照明器具に関する。 The present invention relates to a luminaire cover material, a luminaire cover, and a luminaire that have a low susceptibility using polyolefin resin.
従来から、光拡散材、着色剤を用い、光源に昆虫類が群がることを防止でき、人間の目には着色していない自然な色調に見え、光源からの光を拡散透過させうる樹脂シートとして、紫外線吸収剤を含有して４１０ｎｍまでの光をカットし、着色剤で色調を整え、拡散剤を含有させたヘイズ９５以上のアクリル樹脂シートが知られている（例えば、特許文献１参照）。 Conventionally, as a resin sheet that uses light diffusing materials and colorants, can prevent insects from gathering in the light source, looks natural tones that are not colored to the human eye, and diffuses and transmits light from the light source An acrylic resin sheet having a haze of 95 or more containing an ultraviolet absorber, cutting light up to 410 nm, adjusting the color tone with a colorant, and containing a diffusing agent is known (for example, see Patent Document 1).
また、最近の照明器具においては、光による昆虫類や蛾類の誘引、いわゆる誘虫性を低減させることが求められており、例えば、照明器具の樹脂製照明カバーに特定の紫外線吸収剤を保持させることにより誘虫性を低減させるものが知られている（例えば、特許文献２参照）。また、紫外線吸収剤に替えて、害虫忌避剤を保持させる樹脂製照明カバーも知られている。 Moreover, in recent lighting fixtures, it is required to reduce the so-called insect attracting property of insects and moths by light. For example, a specific ultraviolet absorber is held in a resin lighting cover of the lighting fixture. The thing which reduces insect attractivity by this is known (for example, refer patent document 2). A resin lighting cover that holds a pest repellent instead of the ultraviolet absorber is also known.
しかしながら、昆虫の誘引性を低減するため、４０５ｎｍの波長透過率を５０％以下とし、３００〜３９０ｎｍの波長透過率を５％以下とするためには、一般的な無機系紫外線吸収剤（微粒子酸化物）のみでは、３００〜３９０ｎｍの紫外線カットが不充分である。また有機系紫外線吸収剤では紫外線カットが難しく、特定の有機系紫外線吸収剤を選んでも、従来よりは多くの添加が必要である。アクリル樹脂であれば、紫外線吸収剤をはじめとして、有機系の添加剤を添加することは容易である。しかし、ポリエチレンやポリプロピレン系樹脂などをはじめとするオレフィン系樹脂や、樹脂自体に極性を持ちにくい材料などは、相溶性が悪く、添加後直ぐ又は常温に放置した状態でも紫外線吸収剤、光安定剤などを始めとする有機系の添加剤はブリードしてしまう。また、そのような樹脂を照明器具に使用した場合、照明器具から出る熱や光のストレスによって、添加剤が加速度的にブリードアウトしてしまう場合が見られる。そのため、かかる照明器具カバー材料を用いて成る照明器具カバーでは、低誘虫性を発現できないか、低い加工性のために複雑なデザインを採用することができない可能性がある。 However, in order to reduce the attractiveness of insects, the wavelength transmittance at 405 nm should be 50% or less, and the wavelength transmittance at 300 to 390 nm should be 5% or less. In the case of (material) alone, UV cut at 300 to 390 nm is insufficient. Moreover, it is difficult to cut off ultraviolet rays with an organic ultraviolet absorber, and even if a specific organic ultraviolet absorber is selected, a larger amount of addition than before is required. In the case of an acrylic resin, it is easy to add organic additives including an ultraviolet absorber. However, olefinic resins such as polyethylene and polypropylene resins, and materials that are less polar in the resin itself have poor compatibility, and UV absorbers and light stabilizers can be used immediately after addition or at room temperature. Organic additives such as these will bleed. Moreover, when such resin is used for a lighting fixture, the additive may bleed out at an accelerated rate due to heat or light stress emitted from the lighting fixture. For this reason, a luminaire cover made using such a luminaire cover material may not be able to exhibit low susceptibility or may not be able to adopt a complicated design due to low processability.
さらに、紫外線カットをしないポリプロピレン系樹脂を用いた照明器具用上面カバーを用いて成る上下に光が出る照明器具では、誘引された昆虫類や蛾類が蓄積されて汚れとなり、照明器具のメンテナンスが煩雑となる。アクリル系樹脂等でカバーを作成すれば紫外線カットは容易であるが、ネジ等を留めると割れや、クラックが発生してしまうため、使用することは難しい。比較的機械的強度の強い、ポリカーボネート樹脂等を用いることも考えられるが、ポリプロピレン系樹脂のような汎用樹脂と比較すると圧倒的に価格が高い。また、ポリカーボネート樹脂は、比較的紫外線で変色したりクラックを発生し易い。
本発明は、上記問題を解決するものであり、低誘虫性であり、長期耐久性を有するポリオレフィン樹脂を用いた照明器具カバー材料及び照明器具カバー並びに照明器具を提供することを目的とする。 This invention solves the said problem, and it aims at providing the lighting fixture cover material, the lighting fixture cover, and the lighting fixture which used the polyolefin resin which is low worming property and has long-term durability.
上記目的を達成するために請求項１に記載の発明は、ポリオレフィンに下記式（Ｉ）及び下記式（ＩＩ）で示されるベンゾトリアゾール系紫外線吸収剤を含有したことを特徴とするポリオレフィン樹脂組成物である。式（Ｉ）中、Ｒ１は水素又は塩素原子、Ｒ２乃至Ｒ６はそのうち１つ以上が炭素数６以上の炭化水素基である置換基であり、式（Ｉ）に示すベンゾトリアゾール系紫外線吸収剤にはチヌビン１０９が含まれ、式（ＩＩ)中、Ｒ７は水素又は塩素原子、Ｒ８乃至Ｒ１２は炭素数６以上の炭化水素基を含まない置換基であり、式（ＩＩ）に示すベンゾトリアゾール系紫外線吸収剤にはチヌビン３２６が含まれる。炭化水素基は、脂肪族、芳香族、飽和炭化水素、不飽和炭化水素のいずれであってもよい。
In order to achieve the above object, the invention according to
請求項２に記載の発明は、請求項１に記載のポリオレフィン樹脂組成物において、前記ポリオレフィンが１００重量部であるとき、前記式（Ｉ）のベンゾトリアゾール系紫外線吸収剤が、０．１乃至１重量部、前記式（ＩＩ）のベンゾトリアゾール系紫外線吸収剤が、０．１乃至１重量部であるものである。 According to a second aspect of the present invention, in the polyolefin resin composition according to the first aspect, when the polyolefin is 100 parts by weight, the benzotriazole-based ultraviolet absorber of the formula (I) is 0.1 to 1 Part by weight, the benzotriazole-based ultraviolet absorber of the formula (II) is 0.1 to 1 part by weight.
請求項３に記載の発明は、請求項１又は請求項２に記載のポリオレフィン樹脂組成物において、前記式（Ｉ）のＲ２乃至Ｒ６置換基において、炭素数６以上の置換基がオクチル基、オクトキシ基、ドデシル基、のいずれかひとつ以上であるものである。
The invention according to
請求項４に記載の発明は、請求項１乃至請求項３のいずれか一項に記載のポリオレフィン樹脂組成物において、前記式（Ｉ）のＲ１置換基、及び前記式（ＩＩ）のＲ７置換基のいずれかが、塩素原子であるものである。
Invention of
請求項５に記載の発明は、請求項１乃至請求項４のいずれか一項に記載のポリオレフィン樹脂組成物において、４０５ｎｍの波長透過率を５０％以下とし、３００乃至３９０ｎｍの波長透過率を５％以下とするものである。
The invention described in
請求項６に記載の発明は、請求項１乃至請求項５のいずれか一項に記載のポリオレフィン樹脂組成物において、ヒンダードアミン系である光安定剤を添加してなるものである。
Invention of
請求項７に記載の発明は、請求項１乃至請求項５のいずれか一項に記載のポリオレフィン樹脂組成物において、酸化物系紫外線吸収剤(ＵＶカット剤）を添加してなるものである。
Invention of Claim 7 adds the oxide type ultraviolet absorber (UV cut agent) to the polyolefin resin composition as described in any one of
請求項８に記載の発明は、請求項１乃至請求項７のいずれか一項に記載のポリオレフィン樹脂組成物からなる成形体である。
Invention of
請求項９に記載の発明は、請求項１乃至請求項７のいずれか一項に記載のポリオレフィン樹脂組成物を用いて成る照明器具である。 A ninth aspect of the present invention is a lighting fixture using the polyolefin resin composition according to any one of the first to seventh aspects.
請求項１に記載の発明によれば、化学式（Ｉ）及び化学式（ＩＩ）に示されるベンゾトリアゾール系紫外線吸収剤を添加することにより、４０５ｎｍの波長透過率を５０％以下とし、３００〜３９０ｎｍの波長透過率を５％以下とする、低誘虫性であり、変色とブリードアウトが少ない、長期間使用可能なポリオレフィン樹脂組成物を提供することができる。 According to the first aspect of the present invention, by adding the benzotriazole ultraviolet absorber represented by the chemical formula (I) and the chemical formula (II), the wavelength transmittance at 405 nm is reduced to 50% or less, and from 300 to 390 nm. It is possible to provide a polyolefin resin composition that has a wavelength transmittance of 5% or less , is low insecticidal, has little discoloration and bleed-out, and can be used for a long period of time.
請求項２に記載の発明によれば、各紫外線吸収剤の添加量を０．１〜１重量部とすることにより、製品へのブリードが少なく、耐光変色性に優れ、かつ経済的なポリオレフィン樹脂組成物を提供することが出来る。なお、化学式（Ｉ）で示される紫外線吸収剤の添加量が多いと、耐光変色が大きくなり好ましくない。また、化学式（ＩＩ）で示される紫外線吸収剤の添加量が多いと製品にブリードアウトが生じる。 According to the second aspect of the present invention, by adding 0.1 to 1 part by weight of each ultraviolet absorber, there is little bleeding to the product, excellent light discoloration resistance, and economical polyolefin resin. A composition can be provided. In addition, when there is much addition amount of the ultraviolet absorber shown by Chemical formula (I), light discoloration becomes large and is unpreferable. In addition, when the amount of the ultraviolet absorber represented by the chemical formula (II) is large, the product bleeds out.
請求項３に記載の発明によれば、化学式（Ｉ）で示される紫外線吸収剤の置換基をオクチル基、オクトキシ基、ドデシル基にすることにより、ポリオレフィンとの相溶性に優れ、かつ経済的なポリオレフィン樹脂組成物を提供することが出来る。
According to the invention described in
請求項４に記載の発明によれば、化学式（Ｉ）、（ＩＩ）で示される紫外線吸収剤のＲ１、Ｒ７基を塩素原子にすることにより、４０５ｎｍの波長透過率に優れた低誘虫性のポリオレフィン樹脂組成物を提供することができる。
According to the invention described in
請求項５に記載の発明によれば、４０５ｎｍの波長透過率を５０％以下とし、３００〜３９０ｎｍの波長透過率を５％以下とすることにより、低誘虫性であり、変色とブリードアウトが少ない、長期間使用可能なポリオレフィン樹脂組成物を提供することができる。
According to the invention described in
請求項６に記載の発明によれば、ヒンダードアミン系である光安定剤を添加することにより、光によるポリオレフィン樹脂の劣化と変色を防止することができる。ただし、汎用の低分子量タイプの添加剤は、ブリードアウトするため、光安定剤として高分子量タイプの添加剤を用いることが望ましい。
According to invention of
請求項７に記載の発明によれば、酸化物系紫外線吸収剤（ＵＶカット剤）を添加することにより、無機系添加剤であるＵＶカット剤は分解せず、光によるポリオレフィン樹脂の劣化と変色を防止できると共に、透光性を変化させることができる。 According to the seventh aspect of the invention, by adding an oxide ultraviolet absorber (UV cut agent), the UV cut agent which is an inorganic additive is not decomposed, and the polyolefin resin is deteriorated and discolored by light. Can be prevented, and the translucency can be changed.
請求項８に記載の発明によれば、低誘虫性であり、長期間耐久性を有するポリオレフィン樹脂を用いた成形体を提供することができる。成形体が照明器具カバーである場合、ポリオレフィン樹脂の加工性により、照明器具本体も兼ねるものにすることもできる。 According to the eighth aspect of the present invention, it is possible to provide a molded article using a polyolefin resin that is low insecticidal and has long-term durability. When the molded body is a luminaire cover, it can also serve as the luminaire main body due to the processability of the polyolefin resin.
請求項９に記載の発明によれば、低誘虫性であり、長期間耐久性を有するポリオレフィン樹脂を用いた照明器具を提供することができる。照明器具が、上下に光が出る照明器具であっても低誘虫性にすることができる。 According to the ninth aspect of the present invention, it is possible to provide a lighting apparatus using a polyolefin resin that has low susceptibility and long-term durability. Even if the luminaire is a luminaire that emits light up and down, the luminaire can be made to be less invasive.
本発明の第１の実施形態は、樹脂に紫外線吸収剤を添加した樹脂組成物である。樹脂は、市販されているポリプロピレン系樹脂全てが適用できるが、透明性、耐熱剛性を考慮するとＰＰホモポリマーが好適である。 1st Embodiment of this invention is the resin composition which added the ultraviolet absorber to resin. As the resin, all commercially available polypropylene resins can be applied, but PP homopolymer is preferred in consideration of transparency and heat resistance rigidity.
添加剤は、３４０ｎｍ以上に吸収波長の極大ピークを持ち、ベンゾトリアゾール系ＵＶＡ（紫外線吸収剤）の置換基が炭素数６以上のものとして、チヌビン１０９、またはチヌビン３２９、チヌビン５７１、チヌビン２３４、アデカスタブＬＡ−３１等が挙げられる。色調、カット性能、変色等を総合的に判断すると、チヌビン１０９が好ましい。また、ベンゾトリアゾール系ＵＶＡの置換基が炭素数６未満のものは、チヌビンＰ、チヌビン３２０等が挙げられるがチヌビン３２６、チヌビン３２７が好ましい。 The additive has a maximum absorption wavelength peak at 340 nm or more, and a benzotriazole-based UVA (ultraviolet absorber) substituent having 6 or more carbon atoms. LA-31 etc. are mentioned. In consideration of color tone, cut performance, discoloration, etc., tinuvin 109 is preferable. In addition, examples of the benzotriazole-based UVA substituent having less than 6 carbon atoms include Tinuvin P and Tinuvin 320, but Tinuvin 326 and Tinuvin 327 are preferable.
本発明の第２の実施形態は、光安定剤を添加した樹脂組成物である。光安定剤は、ヒンダードアミン系が好ましい。ただし汎用の低分子量タイプはブリードアウトするため、キマソーブ９４４、キマソーブ１１９、チヌビン６２２等の高分子量タイプが好適である。 The second embodiment of the present invention is a resin composition to which a light stabilizer is added. The light stabilizer is preferably a hindered amine system. However, since general-purpose low molecular weight types bleed out, high molecular weight types such as Kimasorb 944, Kimasorb 119, and Tinuvin 622 are suitable.
本発明の第３の実施形態は、酸化物系紫外線吸収剤を添加した樹脂組成物である。酸化物系紫外線吸収剤は、酸化チタンや酸化亜鉛等が挙げられる。透光性を保つためと紫外線吸収効率を考慮し、０．０６μｍ以下の超微粒子タイプが好ましい。樹脂への分散を考慮し、表面処理が施されてもよい。なお、隠蔽性を大きくしたければ、酸化チタンを用いるのが好ましい。 The third embodiment of the present invention is a resin composition to which an oxide ultraviolet absorber is added. Examples of the oxide ultraviolet absorber include titanium oxide and zinc oxide. In order to maintain translucency and considering the ultraviolet absorption efficiency, an ultrafine particle type of 0.06 μm or less is preferable. In consideration of dispersion in the resin, surface treatment may be performed. In order to increase the concealability, it is preferable to use titanium oxide.
本発明の第４の実施形態は、本発明の樹脂組成物を用いた成形体である。本発明のポリプロピレン系樹脂を用い、射出成形、シート成形、異形押出しほかでグローブ形状を作成する。また、各種成形後、必要に応じて熱を加え、金型にシートを設置し真空や圧空等で、目的の形状にしてもよい。成形の方法は問わない。 The fourth embodiment of the present invention is a molded body using the resin composition of the present invention. Using the polypropylene resin of the present invention, a glove shape is created by injection molding, sheet molding, profile extrusion, or the like. In addition, after various moldings, heat may be applied as necessary, and a sheet may be placed on the mold, and the target shape may be obtained by vacuum or compressed air. The molding method is not limited.
本発明の樹脂組成物は、上記成分のほかに本発明の目的を損なわない範囲で、必要に応じて通常樹脂組成物に配合される充填材、滑剤、酸化防止剤、帯電防止剤、顔料、染料等を適宜配合することが出来る。例えば、銅フタロシアニン系のブルー（チバスペシャリティーケミカルズ製）といった青色成分を、樹脂に対して略０．０００１（０．００００５〜０．０００５）部を添加することは、樹脂組成物の色調が改善されるので特に好適である。 In addition to the above components, the resin composition of the present invention is a filler, lubricant, antioxidant, antistatic agent, pigment, which is usually blended into the resin composition as necessary, as long as the object of the present invention is not impaired. Dye etc. can be mix | blended suitably. For example, adding approximately 0.0001 (0.00005 to 0.0005) parts of blue component such as copper phthalocyanine blue (made by Ciba Specialty Chemicals) to the resin improves the color tone of the resin composition. Therefore, it is particularly suitable.
以下、本発明の実施例を説明する。本実施例の材料組成を図１に示す。ポリプロピレン樹脂（ＭＩ＝２１ｇ／１０分、ホモポリマー、プライムポリマー製Ｊ−２００３ＧＰ）に、ＵＶＡ、安定剤、酸化亜鉛、その他各種添加剤を材料組成表に示す割合で混合し、２軸押出し機（４５ｍｍφ、Ｌ／Ｄ＝３０、池貝製ＰＣＭ４５）を用いて溶融混練しペレットを作製した。こうして得られたペレットを用い、射出成形機（型締力１００ｔ、東芝製ＥＣ１００）を用いて各種評価用プレート（１００×１００ｍｍ）を作製した。 Examples of the present invention will be described below. The material composition of this example is shown in FIG. A polypropylene resin (MI = 21 g / 10 min, homopolymer, J-2003GP manufactured by Prime Polymer) is mixed with UVA, stabilizer, zinc oxide, and other various additives in the proportions shown in the material composition table, and a twin-screw extruder ( Pellets were prepared by melt-kneading using 45 mmφ, L / D = 30, Ikegai PCM45). Using the pellets thus obtained, various evaluation plates (100 × 100 mm) were produced using an injection molding machine (clamping force 100 t, Toshiba EC100).
これら評価用プレートについて、透過特性、誘虫性、色調、耐候性を評価した。評価結果を図２に示す。 About these plates for evaluation, the permeation | transmission characteristic, insect attractance, the color tone, and the weather resistance were evaluated. The evaluation results are shown in FIG.
透過特性：作製した樹脂評価用プレートを自記分光光度（日立製作所製Ｕ４１００）を用いて、波長３００ｎｍから８００ｎｍまでの透過率を測定した。波長３００〜３９０ｎｍの範囲における透過率は、透過率が５％以下のものを○、透過率が５〜１０％のものを△、透過率が１０％以上のものを×とした。４０５ｎｍの透過率及び可視光域の透過率として、代表値として５５５ｎｍの透過率を記載する。 Transmission characteristics: The transmittance from a wavelength of 300 nm to 800 nm was measured on the prepared resin evaluation plate using a self-recording spectrophotometer (U4100, manufactured by Hitachi, Ltd.). Regarding the transmittance in the wavelength range of 300 to 390 nm, a transmittance of 5% or less is indicated by ◯, a transmittance of 5 to 10% is indicated by Δ, and a transmittance of 10% or more is indicated by ×. The transmittance of 555 nm is described as a representative value as the transmittance of 405 nm and the transmittance in the visible light region.
誘虫性：樹脂組成物を用いた照明器具を、１０ｍ四方の部屋の中に配置すると共に、この部屋の中に、ハエ、コナガの二種類の虫をそれぞれ入れ、照明器具の光源を発光させて１時間放置した。そして、粘着トラップに捕集された虫の数を数え、比較例１における捕集された虫の数を基準にして評価を行った。比較例１と昆虫の数にあまり変化がない場合を○とし、比較例１の１．２〜１．８倍の場合を△、１．８倍以上を×とする。 Insect-proofing: A lighting fixture using a resin composition is placed in a 10m square room, and two kinds of insects, fly and diamondback, are placed in this room, and the light source of the lighting fixture is made to emit light. Left for 1 hour. Then, the number of insects collected in the adhesive trap was counted, and the evaluation was performed based on the number of insects collected in Comparative Example 1. The case where there is not much change in the number of insects in Comparative Example 1 is indicated by ◯, the case of 1.2 to 1.8 times that of Comparative Example 1 is indicated by Δ, and the case of 1.8 times or more is indicated by ×.
色調：色調は、ほとんど黄みがないものを○、若干黄みがあるものを△、黄みが強いものを×とした。 Color tone: As for the color tone, a sample having almost no yellowness is indicated by “◯”, a sample having a slight yellowness is indicated by “Δ”, and a sample having a strong yellowness is indicated by “X”.
耐久性：透過率試験の場合と同様に作製した評価用サンプルを、水銀灯（４００Ｗ水銀灯、松下電器産業株式会社製）から１５ｃｍの位置に配置して、この状態で水銀灯を発光させ、１ヶ月後及び３ヶ月後における外観の変化を、４０５ｎｍ透過率変化、色調変化、形状変化の３項目について評価した。４０５ｎｍ透過率変化が、５％以下を○、５〜１０％を△、１０％以上を×とした。色変化および形状変化では、外観視変化無しを○、外観に若干の変化有りを△、外観に著しい変化有り（剥離、極端な傷、変色、表面へのブリードアウトの発生等）を×とした。 Durability: An evaluation sample prepared in the same manner as in the transmission test was placed at a position of 15 cm from a mercury lamp (400 W mercury lamp, manufactured by Matsushita Electric Industrial Co., Ltd.), and the mercury lamp was allowed to emit light in this state. The change in appearance after 3 months was evaluated for three items: 405 nm transmittance change, color tone change, and shape change. For 405 nm transmittance change, 5% or less was evaluated as ◯, 5 to 10% as Δ, and 10% or more as X. For color change and shape change, ◯ indicates no change in appearance, △ indicates a slight change in appearance, and X indicates a significant change in appearance (peeling, extreme scratches, discoloration, occurrence of bleed-out to the surface, etc.). .
このように、本発明の樹脂組成物を用いることにより、低誘虫性であり、長期耐久性を有するポリオレフィン樹脂を用いた照明器具カバー材料及び照明器具カバー並びに照明器具を提供することができる。 As described above, by using the resin composition of the present invention, it is possible to provide a lighting fixture cover material, a lighting fixture cover, and a lighting fixture using a polyolefin resin that has low insecticidal properties and has long-term durability.
本発明は、前記の実施形態や上記の実施例によって限られるものではなく、発明の要旨を変更しない範囲で種々の変形が可能である。例えば、本発明のポリオレフィン樹脂組成物を用いて成る照明器具は、形状等が限定されるものではなく、例えば、照明器具の上下に光を照射するものでも、下のみ又は上のみに光を照射するものであってもよい。 The present invention is not limited to the above-described embodiments and the above-described examples, and various modifications can be made without departing from the scope of the invention. For example, a lighting fixture using the polyolefin resin composition of the present invention is not limited in shape or the like. For example, a lighting fixture that irradiates light on the upper and lower sides of the lighting fixture only irradiates light only below or above. You may do.
Claims (9)
式（Ｉ）中、Ｒ１は水素又は塩素原子、Ｒ２乃至Ｒ６はそのうち１つ以上が炭素数６以上の炭化水素基である置換基であり、式（Ｉ）に示すベンゾトリアゾール系紫外線吸収剤にはチヌビン１０９が含まれ、
式（ＩＩ)中、Ｒ７は水素又は塩素原子、Ｒ８乃至Ｒ１２は炭素数６以上の炭化水素基を含まない置換基であり、式（ＩＩ）に示すベンゾトリアゾール系紫外線吸収剤にはチヌビン３２６が含まれる。
In the formula (I), R 1 is a hydrogen or chlorine atom, R 2 to R 6 are substituents, one or more of which is a hydrocarbon group having 6 or more carbon atoms, and a benzotriazole-based ultraviolet ray represented by the formula (I) The absorbent includes Tinuvin 109,
In the formula (II), R 7 is a hydrogen or chlorine atom, R 8 to R 12 are substituents not containing a hydrocarbon group having 6 or more carbon atoms, and the benzotriazole-based ultraviolet absorber shown in the formula (II) includes Tinuvin 326 is included.
前記式（Ｉ）のベンゾトリアゾール系紫外線吸収剤が、０．１乃至１重量部、
前記式（ＩＩ）のベンゾトリアゾール系紫外線吸収剤が、０．１乃至１重量部であることを特徴とする請求項１に記載のポリオレフィン樹脂組成物。 When the polyolefin is 100 parts by weight,
0.1 to 1 part by weight of the benzotriazole ultraviolet absorber of the formula (I),
The polyolefin resin composition according to claim 1, wherein the benzotriazole-based ultraviolet absorber of the formula (II) is 0.1 to 1 part by weight.
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