摘要:
Hot melt compositions having low melt viscosity and high adhesive strength, especially to metals, are disclosed. The compositions include a copolyester derived from a glycol having from 2 to 10 carbon atoms, terephthalic acid and dimer acid, blended with a polymeric material comprising a vinyl aromatic polymer derived from a monomer of the formula
摘要:
The heat-distortion temperature of linear polyesters of 1,4butanediol and terephthalic acid can be increased by at least 20*C. by incorporating therein at least about 10 percent by weight of a talc filler.
摘要:
Hot melt adhesive compositions having improved bond aging characteristics are disclosed. The compositions include blends of (a) certain block poly(ester-amides) having about 5 to about 55 weight percent of amorphous polyamide segments and about 95 to about 45 weight percent of crystalline polyester segments with (b) a vinyl aromatic polymer.