ADHESIVE COMPOSITION

To provide an adhesive composition which shows little rise in adhesive force after sticking and is easy to be re-stuck.SOLUTION: An adhesive composition includes a block copolymer which comprises: a polymer block A comprising a (meth)acrylic acid ester unit with a C1-12 linear side chain; and a poly...

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Bibliographische Detailangaben
1. Verfasser:	MOGAMI HIROKAZU
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON DYES MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	To provide an adhesive composition which shows little rise in adhesive force after sticking and is easy to be re-stuck.SOLUTION: An adhesive composition includes a block copolymer which comprises: a polymer block A comprising a (meth)acrylic acid ester unit with a C1-12 linear side chain; and a polymer block B comprising an aromatic vinyl compound unit, where the mass ratio (A/B) of the polymer block A to the polymer block B is in the range of 3/97-40/60, the acid value of the polymer block A is 4 mgKOH/g or more, and the acid value of the block copolymer is 4 mgKOH/g or more.SELECTED DRAWING: None 【課題】貼り合わせ後の粘着力の昂進が少なく、貼り直しが容易な粘着剤組成物を提供する。【解決手段】炭素数１～１２の直鎖状の側鎖を有する（メタ）アクリル酸エステル単位を含む重合体ブロックＡと、芳香族ビニル化合物単位を含む重合体ブロックＢとからなるブロック共重合体を含み、前記重合体ブロックＡと前記重合体ブロックＢとの質量比（Ａ／Ｂ）が３／９７～４０／６０の範囲内であり、前記重合体ブロックＡの酸価が４ｍｇＫＯＨ／ｇ以上であり、前記ブロック共重合体の酸価が４ｍｇＫＯＨ／ｇ以上である、粘着剤組成物。【選択図】なし