초록 ▼

The present invention relates to the packaging of a hot melt adhesive in a plastic film to prevent the adhesive from blocking during shipping and storage. The hot melt adhesives of the present invention may be thermoplastic or thermosetting in nature. The films used to wrap the adhesive are flexible

The present invention relates to the packaging of a hot melt adhesive in a plastic film to prevent the adhesive from blocking during shipping and storage. The hot melt adhesives of the present invention may be thermoplastic or thermosetting in nature. The films used to wrap the adhesive are flexible in nature and are made of polymer composition, which become part of the adhesive once the adhesive is melted.

대표청구항 ▼

[ What is claimed is:] [1.] A process for the continuous production of an enrobed hot melt adhesive cartridge comprising:a) passing a plastic film across a table having a channel formed therein;b) depositing a bead of molten hot melt adhesive onto said plastic film above said channel;c) directing sa

[ What is claimed is:] [1.] A process for the continuous production of an enrobed hot melt adhesive cartridge comprising:a) passing a plastic film across a table having a channel formed therein;b) depositing a bead of molten hot melt adhesive onto said plastic film above said channel;c) directing said film downwardly forward at an angle;d) passing said film and adhesive into a forming collar to form a cylinder while applying pressure to said formed cylinder to exclude air bubbles from said cylinder;e) simultaneously sealing the film at a point where its edges overlap;f) rapidly cooling said sealed cylinder within a tubular extension of said forming collar;g) sealing said cylinder at specified distances to form discrete links;h) cooling said links to at least about room temperature; in a bath; and,i) passing said enrobed adhesive into a suitable container.