| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cation-polymerizable adhesive which is used for plastic substrates, is excellent in ordinary adhesiveness to plastic substrates, and has quick curability. <P>SOLUTION: This cation-polymerizable adhesive for plastic substrates is characterized by comprising a urethane prepolymer (A) having a specific oxetanyl structure and represented by general formula (1), and a photo-cation polymerization initiator (B). In the formula, R<SB>1</SB>and R<SB>2</SB>are each independently an alkylene group; R<SB>3</SB>, R<SB>4</SB>and R<SB>5</SB>are each independently an alkyl group or H; R<SB>6</SB>and R<SB>7</SB>are each independently a 2 to 4C alkylene group; (a) is 0 or 1; and (b) and (c) are each independently an integer of 0 to 10. <P>COPYRIGHT: (C)2009,JPO&INPIT |
