JP2015535544A - 樹脂組成物、その製造方法及びこれを含む光学フィルム - Google Patents
樹脂組成物、その製造方法及びこれを含む光学フィルム Download PDFInfo
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- 229920003023 plastic Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- BOQSSGDQNWEFSX-UHFFFAOYSA-N propan-2-yl 2-methylprop-2-enoate Chemical compound CC(C)OC(=O)C(C)=C BOQSSGDQNWEFSX-UHFFFAOYSA-N 0.000 description 1
- LYBIZMNPXTXVMV-UHFFFAOYSA-N propan-2-yl prop-2-enoate Chemical compound CC(C)OC(=O)C=C LYBIZMNPXTXVMV-UHFFFAOYSA-N 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 125000000547 substituted alkyl group Chemical group 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- SJMYWORNLPSJQO-UHFFFAOYSA-N tert-butyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC(C)(C)C SJMYWORNLPSJQO-UHFFFAOYSA-N 0.000 description 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- QROGIFZRVHSFLM-UHFFFAOYSA-N trans-beta-methyl styrene Natural products CC=CC1=CC=CC=C1 QROGIFZRVHSFLM-UHFFFAOYSA-N 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Classifications
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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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/203—Solid polymers with solid and/or liquid additives
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2333/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C08J2333/10—Homopolymers or copolymers of methacrylic acid esters
- C08J2333/12—Homopolymers or copolymers of methyl methacrylate
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Polarising Elements (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
Description
[式1] Rin=(nx−ny)× d、
[式2] Rth=(nz−ny)× d
上記[式1]及び[式2]において、
nxは、光学フィルムの面方向屈折率のうち最大の屈折率であり、
nyは、光学フィルムの面方向屈折率のうちnxと垂直な方向の屈折率であり、
nzは、厚さ方向の屈折率であり、
dは、フィルムの厚さである。
(1)樹脂組成物の製造
メチルメタクリレート92重量部、N−フェニルマルレイミド5重量部、α−メチルスチレン2重量部及びメタクリレート1重量部で構成された単量体混合物1000gを準備して、5リットルの反応器に蒸留水2000g、5%ポリビニルアルコール溶液8.4g(POVAL PVA217,Kuraray社)、ホウ酸0.1g、n−オクチルメルカプタン2.5g及び2,2’−アゾビスイソブチロニトリル1.5gと混合して、400rpmで攪拌しながら水相に分散させた。
次に、上記樹脂組成物100重量部にトリアジン系紫外線吸収剤(LA−F70, ADEKA社)1重量部を入れて、固体ミキサー(Solid Mixer)で2分間混合した後、混合物のかたまり性を肉眼で確認した。その後、上記のように確認された原料混合物を原料ホッパー(hopper)から押出機までを窒素置換した24φの押出機に供給して260℃で溶融し、その過程で樹脂の溶融押出性を肉眼で確認した。
上記原料ペレットを80℃で6時間熱風乾燥し、260℃で押出機で溶融した後、コートハンガー型のTダイ(T−die)に通過させ、クロムめっきキャスティングロール及び乾燥ロールなどを経て、厚さ210μmの光学フィルムを製造した。
実施例1において、トリアジン系紫外線吸収剤としてNST5((スイスDKSH社)1重量部を使用したこと以外には、同一の方法で、樹脂組成物、原料ペレット及び光学フィルムを製造した。
実施例1において、ポリビニルアルコール溶液12.0g及び2,2’−アゾビスイソブチロニトリル3.0gを添加したこと以外には、同一の方法で、樹脂組成物を製造した。
実施例1において、ポリビニルアルコール溶液6.0g及び2,2’−アゾビスイソブチロニトリル0.8gを添加したこと以外には、同一の方法で、樹脂組成物を製造した。
実施例1において、同一の組成及び方法で樹脂組成物を製造した後、上記樹脂組成物を用いて、紫外線吸収剤を含んでいないこと以外には、実施例1と同一の方法で、原料ペレットを製造した。
実施例1において、同一の組成及び方法で樹脂組成物を製造した後、上記樹脂組成物100重量部を基準に紫外線吸収剤6重量部を入れたことを除いては、実施例1と同一の方法で、原料ペレットを製造した。
実施例1において、同一の組成及び方法で樹脂組成物を製造した後、上記樹脂組成物を用いて原料ペレットを製造する過程で歯車ポンプを除去した混練機を用いて混練したことを除いては、同一の方法で、原料ペレットを製造した。
実施例1において、同一の組成及び方法で樹脂組成物を製造した後、原料ペレットを製造する過程でPore大きさが100μmのポリマーフィルターを備えた混練機を用いて混練したことを除いては、同一の方法で、原料ペレットを製造した。
実施例1において、同一の組成及び方法で樹脂組成物を製造した後、上記樹脂組成物にトリアゾール系紫外線吸収剤(TINUVIN 326,BASF)を入れたことを除いては、同一の方法で、原料ペレットを製造した。
実施例1において、無水マレイン酸 10重量部、スチレン単量体23重量部及びメタクリル酸メチル67重量部から構成された単量体混合物を用いたことを除いては、同一の方法で樹脂組成物を製造した。
メチルメタクリレート92重量部、N−フェニルマルレイミド5重量部、α−メチルスチレン2重量部及びメタクリレート1重量部から構成された単量体混合物を、トルエン溶媒に80:20の重量比(単量体混合物:トルエン)で混合し、上記混合溶液に重合開始剤としてジクミルペルオキシド0.03重量部(DCP)、分子量調節剤としてt−ドデシルメルカプタン(TDDM)0.5重量部を入れて重合溶液を製造した後、連続塊状重合で反応温度155℃、16L反応器で時間当り12Lの速度で連続投入した。
実施例1ないし2及び比較例1ないし7による光学フィルムを、フィルム成膜1時間後、キャスティングロールの表面を観察して、紫外線吸収剤による汚染度を肉眼で確認した。このとき、キャスティングロールの汚染度は、ロール表面の肉眼観察時に、濁った部分が存在する場合「×」と区分し、ガラス面のようにきれいな状態を維持する場合、「○」と区分した。また、製造された光学フィルムを6倍拡大したOHP(3M)を用いて、単位面積当たり黒点の個数を確認した。結果は、下記[表3]に示すとおりである。
実施例1ないし2及び比較例1ないし7による光学フィルムに対して、分光測光器(Spectrophotometer)(U−3310,Hitachi)を用いて、380nm及び290nm直進光透過度を測定し、色差計 (CM−508c,Minolta)を用いてフィルムの黄変度を測定した。結果は、下記[表3]に示すとおりである。
Claims (18)
- 粒子状の熱可塑性アクリル系樹脂;及び
トリアジン系紫外線吸収剤を含む樹脂組成物。 - 前記粒子状の熱可塑性アクリル系樹脂は、平均粒径が10μmないし500μmの範囲である請求項1に記載の樹脂組成物。
- 前記粒子状の熱可塑性アクリル系樹脂は、アルキル(メタ)アクリレート系単位及びスチレン系単位を含む共重合体を含むものである請求項1に記載の樹脂組成物。
- 前記粒子状の熱可塑性アクリル系樹脂は、主鎖にカーボネート部を持つ芳香族系樹脂をさらに含むものである請求項3に記載の樹脂組成物。
- 前記粒子状の熱可塑性アクリル系樹脂は、アルキル(メタ)アクリレート系単位、スチレン系単位及び少なくとも一つのカルボニル基で置換された3員ないし6員の複素環単位を含む共重合体を含むものである請求項1に記載の樹脂組成物。
- 前記粒子状の熱可塑性アクリル系樹脂は、アルキル(メタ)アクリレート系単位、スチレン系単位、少なくとも一つのカルボニル基で置換された3員ないし6員の複素環単位及びアルキルアクリレート系単位を含む共重合体を含むものである請求項1に記載の樹脂組成物。
- 前記トリアジン系紫外線吸収剤の含量は、粒子状の熱可塑性アクリル系樹脂100重量部に対して0.1重量部ないし5重量部の範囲である請求項1に記載の樹脂組成物。
- 前記トリアジン系紫外線吸収剤の重量平均分子量は、300ないし2000の範囲である請求項1に記載の樹脂組成物。
- 請求項1ないし8のいずれか一項に記載の樹脂組成物を用いて製造された樹脂ペレット。
- 前記樹脂ペレットは、黒点の個数が0個/100gないし10個/100gの範囲である請求項9に記載の樹脂ペレット。
- 前記樹脂ペレットは、最大粒径と最小粒径との差が5mm以下である請求項9に記載の樹脂ペレット。
- 粒子状の熱可塑性アクリル系樹脂を製造するステップ;及び
前記粒子状のアクリル系樹脂及びトリアジン系紫外線吸収剤を混練するステップを含み、
前記混練するステップは、歯車ポンプ(gear pump)を備えた混練機によって行われるものである樹脂組成物の製造方法。 - 前記粒子状のアクリル系樹脂は、平均粒径が10μmないし500μmの範囲である請求項12に記載の樹脂組成物の製造方法。
- 前記粒子状の熱可塑性アクリル系樹脂を製造するステップは、懸濁重合(Suspension Polymerization)または乳化重合(Emulsion Polymerization)によって行われるものである請求項12に記載の樹脂組成物の製造方法。
- 前記混練するステップは、50μm以下の孔隙(pore)大きさを有するポリマーフィルターを備えた混練機によって行われるものである請求項12に記載の樹脂組成物の製造方法。
- 請求項9に記載の樹脂ペレットを用いて製造された光学フィルム。
- 前記光学フィルムは、厚さ60μmに換算して測定した場合、380nm波長で直進光透過率が1%ないし15%である請求項16に記載の光学フィルム。
- 前記光学フィルムは、厚さ60μmに換算して測定した場合、290nm波長で直進光透過率が0.01%ないし5%である請求項16に記載の光学フィルム。
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KR20180091724A (ko) | 2017-02-06 | 2018-08-16 | 가부시키가이샤 닛폰 쇼쿠바이 | 광학 필름의 제조 방법 및 광학 필름 |
KR20210081289A (ko) * | 2019-12-23 | 2021-07-01 | 삼성에스디아이 주식회사 | 광학 부재 및 이를 포함하는 광학표시장치 |
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