| abstract |
The present invention relates to a moisture reactive hot melt adhesive composition prepared from a combination comprising a polyisocyanate, at least one polyether polyol polymer, an acrylic polymer, an inorganic filler and a polyester diol having a Formula 1 or Formula 2. Formula 1 is: H- [O (CH 2 ) m OOC (CH 2 ) n CO] k -O (CH 2 ) m -OH; m and n each being an even integer; m + n = 8; m and n being each independently selected from 2, 4 and 6; k being an integer from 9 to 55; and the polyol of Formula 1 having a number average molecular weight of about 2,000 to about 11,000. Formula 2, a polycaprolactone polyol, is: HO - [(CH 2 ) 5 COO] p -R 1 - [ OOC (CH 2 ) 5 ] q -OH; R 1 being an initiator such as 1,4'-butanediol, 1,6'-hexanediol or ethylene glycol; p being an integer of 0 to 96; q being an integer from 0 to 96; p + q = 16 to 96; and the polyol having a number average molecular weight of from about 2,000 to about 11,000 or less. |