Minnesota Mining and Manufacturing Company

W Randolph Merton

Alan G McKown

Wayne A Pletcher

Douglas J Laska

A disposable spray dispensing assembly for liquid materials includes a container comprising an aerosol can, and a spray head initially detached from the container. A cap closes an opening of the can and has a coined cover portion which may be ruptured by impact force to present a hole for reception of a dip tube of the spray head. A resilient, deflectable leg has a groove which locks with the cap when the dip tube is inserted into the container, and thereby provides a non-releasable coupling to secure the spray head to the container in captive fashion.

Non-releasable spray head and dip tube assembly

A heat activatable thermoplastic adhesive composition is described which comprises (a) a thermoplastic polymer, (b) an organic polymer having a plurality of functional groups available for crosslinking, and (c) a crosslinking agent capable of reacting with (b). The adhesive compositions exhibit delayed tack and improved temperature resistance.

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Saint Paul, MN, United States of America

W Randolph Merton