Melt adhesive compositions

Claim 1

A melt adhesive composition especially useful in adhering polyolefin bodies to themselves, to other polyolefin bodies and to other non-polyolefinic bodies consisting of (A) from about 60 to 100 weight percent of a mixture consisting of an amorphous polypropylene, a block copolymer selected from the group consisting of styrene-ethylene/butene-1 block copolymers and styrene-ethylene/propylene block copolymers and a hydrocarbon tackifier, wherein said amorphous polypropylene has a crystallinity of less than about 10 weight percent and a molecular weight in the range of about 300 to about 50,000 and said hydrocarbon tackifier has a ring and ball softening point in the range of about 10° to about 150° C.; the above components being present in the following relative amounts: ______________________________________ Weight Percent ______________________________________ Amorphous Polypropylene 5-95 Block Copolymer 2.5-40 Hydrocarbon Tackifier 2.5-55 ______________________________________ (B) from about 0 to about five weight percent, based on the weight of the final adhesive composition of an antioxidant and (C) from about 0 to about 40 weight percent, based on the weight of the final adhesive composition of a compound or a mixture of compounds selected from the group consisting of an isotactic polypropylene, ethylene-propylene copolymers, paraffin and microcrystalline waxes, Fischer-Tropsch waxes, low molecular weight polybutenes, polyisobutylene, low molecular weight polyethylene, low density polyethylene and process oils.