JP2013181095A - 粘着組成物および粘着組成物の製造方法 - Google Patents
粘着組成物および粘着組成物の製造方法 Download PDFInfo
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- JP2013181095A JP2013181095A JP2012045409A JP2012045409A JP2013181095A JP 2013181095 A JP2013181095 A JP 2013181095A JP 2012045409 A JP2012045409 A JP 2012045409A JP 2012045409 A JP2012045409 A JP 2012045409A JP 2013181095 A JP2013181095 A JP 2013181095A
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- Prior art keywords
- adhesive composition
- sensitive adhesive
- pressure
- urethane prepolymer
- thiol
- Prior art date
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- 239000004820 Pressure-sensitive adhesive Substances 0.000 title claims abstract description 82
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- 125000003396 thiol group Chemical group [H]S* 0.000 claims abstract description 54
- 229920006295 polythiol Polymers 0.000 claims abstract description 34
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical group C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 claims abstract description 30
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 239000000853 adhesive Substances 0.000 claims description 98
- 230000001070 adhesive effect Effects 0.000 claims description 97
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- 239000012948 isocyanate Substances 0.000 claims description 27
- 125000000524 functional group Chemical group 0.000 claims description 21
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- 230000002194 synthesizing effect Effects 0.000 claims description 8
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- IMQFZQVZKBIPCQ-UHFFFAOYSA-N 2,2-bis(3-sulfanylpropanoyloxymethyl)butyl 3-sulfanylpropanoate Chemical compound SCCC(=O)OCC(CC)(COC(=O)CCS)COC(=O)CCS IMQFZQVZKBIPCQ-UHFFFAOYSA-N 0.000 description 2
- XMLYCEVDHLAQEL-UHFFFAOYSA-N 2-hydroxy-2-methyl-1-phenylpropan-1-one Chemical compound CC(C)(O)C(=O)C1=CC=CC=C1 XMLYCEVDHLAQEL-UHFFFAOYSA-N 0.000 description 2
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- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- YAAUVJUJVBJRSQ-UHFFFAOYSA-N [3-(3-sulfanylpropanoyloxy)-2-[[3-(3-sulfanylpropanoyloxy)-2,2-bis(3-sulfanylpropanoyloxymethyl)propoxy]methyl]-2-(3-sulfanylpropanoyloxymethyl)propyl] 3-sulfanylpropanoate Chemical compound SCCC(=O)OCC(COC(=O)CCS)(COC(=O)CCS)COCC(COC(=O)CCS)(COC(=O)CCS)COC(=O)CCS YAAUVJUJVBJRSQ-UHFFFAOYSA-N 0.000 description 2
- 238000012644 addition polymerization Methods 0.000 description 2
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- 150000001412 amines Chemical class 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
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- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 2
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- 229910052757 nitrogen Inorganic materials 0.000 description 2
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Abstract
【解決手段】アリルエーテル基とビニルエーテル基との少なくとも一方を複数有するウレタンプレポリマーと、チオール基を1個有するモノチオールと、チオール基を複数有するポリチオールとを光重合反応させることにより、粘着組成物を得る。上記ウレタンプレポリマーに、ポリチオールだけでなく、モノチオールも光重合反応させることで、適切な粘着力の粘着組成物を得ることが可能となる。また、上記ウレタンプレポリマーが採用されることで、抗張力が高く、強靭な粘着組成物を得ることが可能となる。さらに言えば、光重合反応により粘着組成物を製造できるため、熱等を加えるための工程が必要無く、溶剤等も必要無い。これにより、設備投資の抑制,省スペース化を図るとともに、人体への有害性,環境汚染等に対しても非常に有利となる。
【選択図】なし
Description
図1〜図4に示す配合の原料から、実施例1〜20の粘着組成物および比較例1〜3の粘着組成物を製造した。以下に、各原料の詳細を示す。なお、比較例4は、アクリル系の透明エラストマーである。
・ポリオールb;ポリプロピレングリコール(PPG)、商品名:サンニックスPP−3000、三洋化成(株)製、重量平均分子量:3000、水酸基数:2
・ポリオールc;ポリプロピレングリコール(PPG)、商品名:プレミノールS4011、旭硝子(株)製、重量平均分子量:10000、水酸基数:2
・ポリオールd;エチレンオキサイド(EO)付加ポリプロピレングリコール(PPG)、商品名:プレミノール5005、旭硝子(株)製、重量平均分子量:4000、水酸基数:2
・ポリイソシアネートa;水添MDI、商品名:デスモジュールW、バイエル(株)製
・ポリイソシアネートb;TDI、商品名:ルプラネートT−80、BASF(株)製
・アリルエーテル;ヒドロキシエチルアリルエーテル、日本乳化剤(株)製
・ビニルエーテル;ヒドロキシブチルビニルエーテル、日本カーバイド(株)製
・チオールA;官能基数2、重量分子量238.6、ブタンジオールビスチオグリコレート、1,4−BDTG、淀化学(株)製
・チオールB;官能基数3、重量分子量398.5、トリメチロールプロパントリス(3−メルカプトプロピオネート)、TMMP、SC有機化学(株)製
・チオールC;官能基数6、重量分子量783.0、ジペンタエリスリトールヘキサキス(3−メルカプトプロピオネート)、DPMP、SC有機化学(株)製
・光重合開始剤;2−ヒドロキシ−2−メチル−1−フェニル−プロパン−1−オン、DAROCUR1173、BASF社製
上述のように製造された実施例1〜20の粘着組成物、比較例1〜3の粘着組成物、および、比較例4としてのアクリル系の粘着組成物に対して、以下の方法によって物性評価を行った。
粘着力(JIS A5759:2008)が、15N/25mm以上であることを特徴とする粘着組成物。
粘着力(JIS A5759:2008)が、15N/25mm以上であることを特徴とする粘着組成物の製造方法。
チオール基を2個有するものと、チオール基を3個以上有するものとによって構成されることを特徴とする(13)項に記載の粘着組成物の製造方法。
Claims (8)
- アリルエーテル基とビニルエーテル基との少なくとも一方を複数有するウレタンプレポリマーと、チオール基を1個有するモノチオールと、チオール基を複数有するポリチオールとを光重合反応させ、
粘着力(JIS A5759:2008)が、15N/25mm以上であることを特徴とする粘着組成物。 - チオール基を1個有するモノチオールと、チオール基を複数有するポリチオールとのチオール基の平均官能基数が、1.9以上であることを特徴とする請求項1に記載の粘着組成物。
- 前記モノチオールが有するチオール基と前記ポリチオールが有するチオール基との全当量数の、前記ウレタンプレポリマーが有するアリルエーテル基、若しくはビニルエーテル基の全当量数に対する比率が1〜1.5であることを特徴とする請求項1または請求項2に記載の粘着組成物。
- 前記ウレタンプレポリマーを合成するために用いられるポリイソシアネートが、芳香族イソシアネートを含まないことを特徴とする請求項1ないし請求項3のいずれか1つに記載の粘着組成物。
- 前記ウレタンプレポリマーを合成するために用いられるポリイソシアネートが、ジシクロヘキシルメタンジイソシアネートのみを含むことを特徴とする請求項1ないし請求項4のいずれか1つに記載の粘着組成物。
- 色相(YI値)(JIS K7105−1981)が0.5%以下であることを特徴とする請求項4または請求項5に記載の粘着組成物。
- アリルエーテル基とビニルエーテル基との少なくとも一方を複数有するウレタンプレポリマーと、チオール基を1個有するモノチオールと、チオール基を複数有するポリチオールとを光重合反応させる工程を含み、
粘着力(JIS A5759:2008)が、15N/25mm以上であることを特徴とする粘着組成物の製造方法。 - 前記ポリチオールは、
チオール基を2個有するものと、チオール基を3個以上有するものとによって構成されることを特徴とする請求項7に記載の粘着組成物の製造方法。
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JP2015048372A (ja) * | 2013-08-30 | 2015-03-16 | 株式会社イノアック技術研究所 | 粘着性接着剤、積層体および積層体の製造方法 |
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