JP5647091B2 - 表面保護用硬化性組成物 - Google Patents
表面保護用硬化性組成物 Download PDFInfo
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- JP5647091B2 JP5647091B2 JP2011235923A JP2011235923A JP5647091B2 JP 5647091 B2 JP5647091 B2 JP 5647091B2 JP 2011235923 A JP2011235923 A JP 2011235923A JP 2011235923 A JP2011235923 A JP 2011235923A JP 5647091 B2 JP5647091 B2 JP 5647091B2
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- Prior art keywords
- meth
- acrylate
- curable composition
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- Prior art date
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 55
- 230000001681 protective effect Effects 0.000 claims description 53
- 238000000034 method Methods 0.000 claims description 32
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- 239000003112 inhibitor Substances 0.000 claims description 8
- 238000006116 polymerization reaction Methods 0.000 claims description 8
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 claims description 7
- 239000003999 initiator Substances 0.000 claims description 7
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- 235000021355 Stearic acid Nutrition 0.000 description 1
- 244000028419 Styrax benzoin Species 0.000 description 1
- 235000000126 Styrax benzoin Nutrition 0.000 description 1
- 235000008411 Sumatra benzointree Nutrition 0.000 description 1
- IDCBOTIENDVCBQ-UHFFFAOYSA-N TEPP Chemical compound CCOP(=O)(OCC)OP(=O)(OCC)OCC IDCBOTIENDVCBQ-UHFFFAOYSA-N 0.000 description 1
- BGNXCDMCOKJUMV-UHFFFAOYSA-N Tert-Butylhydroquinone Chemical compound CC(C)(C)C1=CC(O)=CC=C1O BGNXCDMCOKJUMV-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- 238000003848 UV Light-Curing Methods 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- PSGCQDPCAWOCSH-BREBYQMCSA-N [(1r,3r,4r)-4,7,7-trimethyl-3-bicyclo[2.2.1]heptanyl] prop-2-enoate Chemical compound C1C[C@@]2(C)[C@H](OC(=O)C=C)C[C@@H]1C2(C)C PSGCQDPCAWOCSH-BREBYQMCSA-N 0.000 description 1
- 150000008062 acetophenones Chemical class 0.000 description 1
- 229920000800 acrylic rubber Polymers 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 229960002130 benzoin Drugs 0.000 description 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- AOJOEFVRHOZDFN-UHFFFAOYSA-N benzyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC1=CC=CC=C1 AOJOEFVRHOZDFN-UHFFFAOYSA-N 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- LTPBRCUWZOMYOC-UHFFFAOYSA-N beryllium oxide Inorganic materials O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 description 1
- 230000001588 bifunctional effect Effects 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 125000006267 biphenyl group Chemical group 0.000 description 1
- 229930006711 bornane-2,3-dione Natural products 0.000 description 1
- 150000001634 bornane-2,3-dione derivatives Chemical class 0.000 description 1
- 235000019437 butane-1,3-diol Nutrition 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 229910002026 crystalline silica Inorganic materials 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 125000004386 diacrylate group Chemical group 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- TZAMQIAPGYOUKF-UHFFFAOYSA-N diethoxyphosphoryl(phenyl)methanone Chemical compound CCOP(=O)(OCC)C(=O)C1=CC=CC=C1 TZAMQIAPGYOUKF-UHFFFAOYSA-N 0.000 description 1
- XVKKIGYVKWTOKG-UHFFFAOYSA-N diphenylphosphoryl(phenyl)methanone Chemical compound C=1C=CC=CC=1P(=O)(C=1C=CC=CC=1)C(=O)C1=CC=CC=C1 XVKKIGYVKWTOKG-UHFFFAOYSA-N 0.000 description 1
- VFHVQBAGLAREND-UHFFFAOYSA-N diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 VFHVQBAGLAREND-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- MHCLJIVVJQQNKQ-UHFFFAOYSA-N ethyl carbamate;2-methylprop-2-enoic acid Chemical compound CCOC(N)=O.CC(=C)C(O)=O MHCLJIVVJQQNKQ-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 235000019382 gum benzoic Nutrition 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229940119545 isobornyl methacrylate Drugs 0.000 description 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- REEZZSHJLXOIHL-UHFFFAOYSA-N octanoyl chloride Chemical compound CCCCCCCC(Cl)=O REEZZSHJLXOIHL-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229950000688 phenothiazine Drugs 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- OXNIZHLAWKMVMX-UHFFFAOYSA-N picric acid Chemical compound OC1=C([N+]([O-])=O)C=C([N+]([O-])=O)C=C1[N+]([O-])=O OXNIZHLAWKMVMX-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920002589 poly(vinylethylene) polymer Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 230000001235 sensitizing effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000005049 silicon tetrachloride Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical group [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Description
1.(A)分子の末端又は側鎖に1個以上の(メタ)アクリロイル基を有し、分子量が500以上である1,2−ポリブタジエン末端ウレタン(メタ)アクリレート、(B)フェノール(エチレンオキサイド2モル変性)アクリレート、2−(1,2−シクロヘキサジカルボキシイミド)エチルアクリレート、ジシクロペンタニルジ(メタ)アクリレートを含有する(メタ)アクリレート、(C)光重合開始剤、シクロペンタジエン骨格を含有する樹脂を含有する表面保護用硬化性組成物。
2.(A)と(B)の合計量100質量部中、(A)を20〜90質量部、(B)を10〜80質量部、(A)及び(B)の合計100質量部に対して、(C)を0.1〜20質量部含有することを特徴とする1に記載の表面保護用硬化性組成物。
3.(D)乾式法シリカを含有することを特徴とする1又は2のいずれかに記載の表面保護用硬化性組成物。
4.(A)及び(B)の合計量100質量部に対して、極性有機溶媒0.5〜30質量部と重合禁止剤0.001〜3質量部を含有することを特徴とする1〜3のいずれか1項に記載の表面保護用硬化性組成物。
5.(C)光重合開始剤として2−メチル−1−[4−(メチルチオ)フェニル]−2−モルフォリノプロパン−1−オンであり、極性有機溶媒がイソプロピルアルコールであり、重合禁止剤が2,2−メチレン−ビス(4−メチル−6−ターシャリーブチルフェノール)であることを特徴とする4に記載の表面保護用硬化性組成物。
6.粘度が5000mPa・s以上であることを特徴とする1〜5のいずれかに記載の表面保護用硬化性組成物。
7.被加工部材の表面に1〜6のいずれかに記載の表面保護用硬化性組成物からなる保護膜を設け、被加工材を加工した後、前記保護膜を被加工部材より剥離することを特徴とする被加工部材の表面保護方法。
8.被加工部材の表面に保護膜を設ける際に、スクリーン印刷法によることを特徴とする7に記載の被加工部材の表面保護方法。
9.保護膜を被加工材より剥離するに際して、少なくとも保護膜を30〜90℃の温水に浸漬することを特徴とする7又は8に記載の被加工部材の表面保護方法。
(A)分子の末端又は側鎖に1個以上の(メタ)アクリロイル基を有し、分子量が500以上である(メタ)アクリレートとして、クラレ社製「UC−203」(メタクロイル変性ポリイソプレン、以下「UC−203」と略す。)80質量部、(B)(A)以外の(メタ)アクリレートとしてジシクロペンテニルオキシエチルメタクリレート(ローム&ハース社製「QM−657」、以下「QM」と略す。)20質量部、(C)光重合開始剤として2−メチル−1−[4−(メチルチオ)フェニル]−2−モルフォリノプロパン−1−オン(チバ・スペシャルティ・ケミカルズ社製「IRGACURE907」、以下「I−907」と略す。)(D)無機充填材として乾式法シリカである「アエロジルR972」(日本アエロジル社製)2部、重合禁止剤として2,2−メチレン−ビス(4−メチル−6−ターシャリーブチルフェノール)(以下「MDP」と略す。)0.1質量部添加して表面保護用硬化性組成物を作成した。得られた表面保護硬化性組成物を使用して、以下に示す評価方法にて引張せん断接着強さの測定及び剥離試験を行った。それらの結果を表1に示す。
粘度:B型粘度計を使用して、温度23℃の条件下、作成した表面保護用硬化性組成物の粘度を測定した。
表面硬化性:耐熱パイレックス(登録商標)ガラス上に作成した表面保護用硬化性組成物をスクリーン印刷法により塗布厚みとして約70μm塗布し、メタルハライドランプを使用したアイグラフィックス社製硬化装置により、365nmの波長の積算光量2000mJ/cm2の条件にて硬化させた。その直後、表面硬化性を指触にて下記に示す判定基準で評価した。
○ :タック無く良好
△ :少しタックがある
×:べとつき、指先が汚染される
剥離性(1):上記と同様に耐熱パイレックス(登録商標)ガラス上に表面保護用硬化性組成物を塗布し、メタルハライドランプを使用したアイグラフィックス社製硬化装置により、365nmの波長の積算光量2000mJ/cm2の条件にて硬化させ、保護膜を形成させた剥離試験体を作成した。得られた試験体を、温水(80℃)に浸漬し、耐熱パイレックス(登録商標)ガラスから保護膜が剥離する時間を測定した。
剥離性(2):被着体としてポリカーボネートを用いた以外は、剥離性(1)と同様に保護膜を形成させた剥離試験体を作成した。得られた試験体を同様にポリカーボネートから保護膜が剥離する時間を測定した。
表1、表2に示す種類の原材料を表1、表2に示す組成で使用した以外は実施例1と同様にして表面保護用硬化性組成物を作成した。得られた硬化性組成物について、実施例1と同様に引張せん断接着強さの測定及び剥離試験を行った。それらの結果を表1、2に示す。
(A)分子の末端又は側鎖に1個以上の(メタ)アクリロイル基を有し、分子量が500以上である(メタ)アクリレート
TE−2000:1,2-ポリブタジエン末端ウレタンメタクリレート(日本曹達社製「TE-2000」、分子量2000)
UV7000B:ウレタンアクリレート(日本合成化学社製「紫光UV−7000B」、分子量3500)
UV3000B:ポリエステル系ウレタンアクリレート(日本合成化学社製「紫光UV−3000B」、分子量18000)
(B)(A)以外の(メタ)アクリレート
M−101A:フェノールエチレンオキサイド2モル変性アクリレート(東亞合成社製「アロニックスM−101A」)
M−140:2−(1,2−シクロヘキサジカルボキシイミド)エチルアクリレート(東亜合成社製「アロニックスM−140」)
IBXA:イソボルニルアクリレート(共栄社化学社製「ライトアクリレートIB−XA」)
R−684:ジシクロペンタニルジアクリレート(日本化薬社製「KAYARAD R−684」)
その他成分
ACMO:アクロイルモルホリン(興人社製「ACMO」)
クイントン1700:シクロペンタジエン樹脂(日本ゼオン社製「クイントン1700」)
IPA:イソプロピルアルコール
表3に示す種類の原材料を表3に示す組成で使用した以外は実施例1と同様にして硬化性組成物を作成した。得られた硬化性組成物について、実施例1と同様に粘度測定した。実施例1と同様にスクリーン印刷法により表面硬化性及び剥離試験用の試験片の作成を行ったが比較例1〜5はいずれも粘度が低く、スクリーン印刷はできなかった。そこで、刷毛塗りにより被着体である耐熱パイレックス(登録商標)ガラスやポリカーボネート上に硬化性組成物を塗布し表面硬化性及び剥離試験を行った。それらの結果を表3に示す。
(B)(A)以外の(メタ)アクリレート
BZ:ベンジルメタクリレート(共栄社化学社製「ライトエステルBZ」)
IBX:イソボルニルメタクリレート(共栄社化学社製「ライトエステルIB−X」)
2−HEMA:2-ヒドロキシエチルメタクリレート
MTEGMA:メトシキテトラエチレングリコールモノメタクリレート(新中村化学社製「NKエステルM−90G」)
Claims (9)
- (A)分子の末端又は側鎖に1個以上の(メタ)アクリロイル基を有し、分子量が500以上である1,2−ポリブタジエン末端ウレタン(メタ)アクリレート、(B)フェノール(エチレンオキサイド2モル変性)アクリレート、2−(1,2−シクロヘキサジカルボキシイミド)エチルアクリレート、ジシクロペンタニルジ(メタ)アクリレートを含有する(メタ)アクリレート、(C)光重合開始剤、シクロペンタジエン骨格を含有する樹脂を含有する表面保護用硬化性組成物。
- (A)と(B)の合計量100質量部中、(A)を20〜90質量部、(B)を10〜80質量部、(A)及び(B)の合計100質量部に対して、(C)を0.1〜20質量部含有することを特徴とする請求項1に記載の表面保護用硬化性組成物。
- (D)乾式法シリカを含有することを特徴とする請求項1乃至2のいずれか1項に記載の表面保護用硬化性組成物。
- (A)及び(B)の合計量100質量部に対して、極性有機溶媒0.5〜30質量部と重合禁止剤0.001〜3質量部を含有することを特徴とする請求項1乃至3のいずれか1項に記載の表面保護用硬化性組成物。
- (C)光重合開始剤として2−メチル−1−[4−(メチルチオ)フェニル]−2−モルフォリノプロパン−1−オンであり、極性有機溶媒がイソプロピルアルコールであり、重合禁止剤が2,2−メチレン−ビス(4−メチル−6−ターシャリーブチルフェノール)であることを特徴とする請求項4に記載の表面保護用硬化性組成物。
- 粘度が5000mPa・s以上であることを特徴とする請求項1乃至5のいずれか1項に記載の表面保護用硬化性組成物。
- 被加工部材の表面に請求項1乃至6のいずれか1項に記載の表面保護用硬化性組成物が硬化してなる保護膜を設け、被加工材を加工した後、前記保護膜を被加工部材より剥離することを特徴とする被加工部材の表面保護方法。
- 被加工部材の表面に保護膜を設ける際に、スクリーン印刷法によることを特徴とする請求項7記載の被加工部材の表面保護方法。
- 保護膜を被加工材より剥離するに際して、少なくとも保護膜を30〜90℃の温水に浸漬することを特徴とする請求項7又は請求項8に記載の被加工部材の表面保護方法。
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