HOT-MELT ADHESIVE, PROTECTIVE SHEET WITH ADHESIVE, AND MANUFACTURING METHOD THEREOF

To provide: an adhesive for forming a protective sheet with an adhesive that can be applied to adherends such as headrest surfaces, backrest surfaces, seat surfaces, kitchen partition members, etc. without heating; a protective sheet with an adhesive; and a protective sheet with an adhesive that can be applied without stringing, does not contaminate the surface to be applied, and can be easily replaced even after it becomes dirty.SOLUTION: Provided is a hot-melt adhesive of which components are a block copolymer (a) with polymer block that contains a polymer block containing a structural unit derived from a methacrylic acid alkyl ester in which the alkyl group has 1 to 3 carbon atoms and a structural unit derived from an acrylic acid alkyl ester in which the alkyl group has 1 to 8 carbon atoms, a vegetable oil (b), and a tackifier resin (c), wherein the content of the block copolymer (a) is 35-75 mass%, the content of the vegetable oil (b) is 10-50 mass%, and the content of the tackifier resin (c) is 5-40 mass% in terms of 100 mass% of the total of the components.SELECTED DRAWING: None 【課題】加熱せずとも、ヘッドレスト表面・背もたれ表面・座席表面や、厨房の間仕切り部材等に代表される被着体に、貼付し得る粘着剤付き保護シート形成用の粘着剤および粘着剤付き保護シートの提供。また、糸曳することなく塗工でき、さらに、被貼付け塗装面を汚染せず、汚れた後も簡単に張り替えられる粘着剤付き保護シートの提供。【解決手段】アルキル基の炭素数が１～３のメタクリル酸アルキルエステルに由来する構造単位を含む重合体ブロックとアルキル基の炭素数が１～８のアクリル酸アルキルエステルに由来する構造単位を含む重合体ブロックとのブロック共重合体（Ａ）、植物油（Ｂ）、および粘着付与樹脂（Ｃ）の合計１００質量％中、ブロック共重合体（Ａ）を３５～７５質量％、植物油（Ｂ）を１０～５０質量％、粘着付与樹脂（Ｃ）を５～４０質量％含む、ホットメルト型粘着剤により解決される。【選択図】なし