Hot melt adhesive composition for book casemaking.

摘要

A case or cover for a hard bound book is formed by bonding the formed by bonding the cover boards to the book cover stock using a hot melt pressure sensitive adhesive composition comprising:
<UnorderedLists id="ula01" listStyle="none"><ListItem>a) 20 to 35% by weight of an A-B-A block or A-B-A-B-A-B multi-block copolymer where the A component is styrene and the B component is butadiene or hydrogenated butadiene and the copolymer contains at least 28 parts styrene per 100 parts copolymer;</ListItem><ListItem>b) 45 to 70% by weight of a compatible tackifying resin;</ListItem><ListItem>c) 5 to 30% by weight of a plasticizing oil;</ListItem><ListItem>d) 0 to 5% by weight of a petroleum derived wax; and</ListItem><ListItem>e) 0.1 to 2% by weight of a stabilizer.</ListItem></UnorderedLists>