Wax for hot melt adhesive applications

A hot-melt adhesive composition, the adhesive composition comprising:

• (a) from about 25% to about 35% by weight of a thermoplastic copolymer selected from the group consisting of a copolymer consisting essentially of an ethylene containing copolymer or a copolymer consisting essentially of an ethylene vinyl acetate (“EVA”) copolymer, ethylene acrylic acid copolymers, ethylene ethyl acrylate copolymers;
• ethylene methacrylic acid copolymers;
• ethylene/vinyl acetate/acid terpolymers, polymers derived from ethylene, polyamides, polyethylene, polyester, and polypropylene;
• (b) from about 15% to about 40% by weight of a tackifier resin, the tackifier selected from the group consisting of a rosin ester, a hydrogenated rosin, a high acid number rosin, and a maleic modified rosin and wherein the tackifler resin is characterized by having an acid number of about 3 to about 10;
• c) from about 15-about 35% by weight of a wax derived from a hydrogenated vegetable oil (a vegetable derived wax), the wax being characterized by having a melt viscosity of from about 50 to about 70 SUS at 210 degrees F., and a Mettler drop point of from about 130 degrees to about 170 degrees F.;
• and
• (d) the adhesive composition being characterized by having a DSC melt point of from about 50 degrees C. to about 80 degrees C., a melt viscosity of from about 1000-about 5000 cps at 350 degrees F., the adhesive composition being capable of binding a fibrous cellulosic article to an article selected from the group consisting of a fibrous cellulosic article, wood, metal, glass and plastic.

A composition for application to an article intended to be bonded to another article, the composition consisting essentially of a polymer resin, tackifier and a wax derived from a hydrogenated vegetable oil (a vegetable-derived wax,

• a. the polymer resin comprising from about 30% to about 35% by weight of the composition, the polymer being a thermoplastic copolymer consisting essentially of an ethylene containing copolymer, the copolymer selected from the group consisting of an ethylene copolymer an ethylene vinyl acetate copolymer;
• and copolymers and terpolymers thereof, the ethylene vinyl acetate copolymer having a vinyl acetate content of 28%, the polymer having a melt viscosity of about 580,000 cp at 302 degrees F.;
• b. the tackifier comprising from about 30% to about 35% by weight of the composition, the tackifier being characterized by having an acid number of from about 3 to about 10;
• and
• c. the wax comprising from about 30% to about 35% by weight of the composition, the wax comprising a triglyceride having a melting point between 136-160 degrees F, the triglyceride being characterized by having an iodine value of between 2 and 5, the composition being characterized by a viscosity of between 10 to 200 cps at 140 degrees F., wherein the triglyceride comprises a fatty acid, the fatty acid being stearic acid.