Pet bottle assemblies

Details Pet bottle assemblies Pet bottle assemblies

B - Operations, Transporting

65

D

190/150, 190/26.

B65D 1/02 (2006.01) C09J 153/02 (2006.01)

Patent

CA 1123764

PET BOTTLE ASSEMBLIES ABSTRACT OF THE INVENTION PET bottle assemblies are prepared from a PET bottle which has been blow-molded and joined to a HDPE base cup with a hot melt adhesive which consists essentially of a blend of: (1) a block copoly- mer selected from the class consisting of: (a) A-B-A block copolymer where A is a monovinyl aromatic hydrocarbon and B is either a con- jugated diene or a rubbery mono-olefin and (b) a teleblock copolymer comprising molecules having at least three branches radially branching out from a central hub, each said branch having polystyrene terminal blocks and a butadiene segment in the center; (2) at least one tackifying resin which serves to extend the adhesive properties of the system; (3) at least one stabilizer; and (4) at least one wax or oil diluent. The resultant assemblies are characterized by bonds or joints which possess an unusual combination of excellent low and high tempera- ture adhesion and flexibility as well as high bond strengths.

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