PET Bottle assemblies produced by using a hot melt adhesive comp

Details PET Bottle assemblies produced by using a hot melt adhesive comp PET Bottle assemblies produced by using a hot melt adhesive comp

1979-04-30

1980-07-15

Cannon, James C.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

156228, 156334, 206813, 215 1C, 425522, B65D 1104, B65D 1122, C09J 314, C09J 500

Patent

active

042129109

ABSTRACT:
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 copolymer selected from the class consisting of: (a) A-B-A block copolymer where A is a monovinyl aromatic hydrocarbon and B is either a conjugated 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 temperature adhesion and flexibility as well as high bond strengths.

REFERENCES:
patent: 3427269 (1969-02-01), Davis et al.
patent: 3722725 (1973-03-01), Khetani et al.
patent: 3726429 (1973-04-01), Doughty
patent: 3728193 (1973-04-01), McKeever et al.
patent: 3837994 (1974-09-01), Flanagan et al.
patent: 3865302 (1975-02-01), Kane
patent: 3902617 (1975-09-01), Valgi
patent: 3932330 (1976-01-01), Lakshmanan
patent: 4082200 (1978-04-01), Guest et al.
patent: 4136699 (1979-01-01), Collins et al.

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