JOINT SHEET, AND REPAIRING METHOD

PROBLEM TO BE SOLVED: To provide a joint sheet capable of easily joining a polyvinyl chloride sheet and polyolefin sheet with high joint strength, and to provide a repairing method using the joint sheet.SOLUTION: A joint sheet 10 includes: a first joint layer 12 containing chlorinated polyolefin and polyvinyl chloride; and a second joint layer 14 containing chlorinated polyolefin as well as polyolefin and formed on the first joint layer 12. Both chlorine contents of chlorinated polyolefin in the first and second joint layers 12 and 14 are 20 to 40%, respectively. Besides, a ratio of a mass of chlorinated polyolefin in the first joint layer to a mass of polyvinyl chloride in the first joint layer is 95:5 to 70:30, and a ratio of a mass of chlorinated polyolefin in the second joint layer 14 to a mass of the polyolefin in the second joint layer 14 is 8:2 to 5:5. A repairing method using the joint sheet 10 is also provided. 【課題】熱風を当ててロールで圧着する方法であっても、ポリ塩化ビニルシートとポリオレフィンシートを高い接合強度で容易に接合できる接合シート及び該接合シートを用いた補修方法を提供する。【解決手段】塩素化ポリオレフィンとポリ塩化ビニルを含有する第１接合層１２と、第１接合層１２上に形成され、塩素化ポリオレフィンとポリオレフィンを含有する第２接合層１４と、を有し、第１接合層１２中の塩素化ポリオレフィン及び第２接合層１４中の塩素化ポリオレフィンの塩素含有率が共に２０〜４０％であり、前記第１接合層中の前記塩素化ポリオレフィンと前記ポリ塩化ビニルの質量比が９５：５〜７０：３０であり、第２接合層１４中の前記塩素化ポリオレフィンと前記ポリオレフィンの質量比が８：２〜５：５であることを特徴とする接合シート１０。また、接合シート１０を用いた補修方法。【選択図】図１