| 摘要 |
Pressure sensitive and hot melt adhesive compositions having improved shear adhesion failure temperatures (SAFT) comprising: a) a block copolymer having at least two monoalkenyl arene polymer endblocks A and at least one elastomeric conjugated-diene midblock B, said blocks A comprising 8-55 % by weight of the block copolymer; b) about 50 to about 200 phr of a tackifying resin compatible with block B; and c) about 5 to about 50 phr of a low molecular weight polyphenylene oxide polymer wherein the molecular weight (Mvis) of the polyphenylene oxide polymer is from about 1,000 to about 5,000, the Tg is from about 100 DEG C to about 165 DEG C, preferably between 140-163 DEG C. |
