| 摘要 |
PROBLEM TO BE SOLVED: To provide an adhesive which has good workability and excellently balanced adhesive characteristics and is suitably applicable to various hygiene sanitary goods such as conventional paper diapers and feminine hygiene products. SOLUTION: A block copolymer composition for the adhesive for elastic members contains a block copolymer comprising a polymer block (a) consisting mainly of vinyl aromatic hydrocarbon and a polymer block (b) consisting mainly of conjugated diene, or its hydrogenated product. A total content of bonded vinyl aromatic hydrocarbons in the component (a) is 50 wt.% or more. A total content of bonded vinyl aromatic hydrocarbons in the component (b) is less than 50 wt.%. In the block copolymer, a total content (TS) of bonded vinyl aromatic hydrocarbons is 30-75 wt.%, a content of the polymer block (b) is less than 90 wt.%, and an MI of the block copolymer or its hydrogenated product is 1-30 g/10min. COPYRIGHT: (C)2009,JPO&INPIT |
