초록 ▼

A heat-activated sealing tape for manufacturing or sealing a carton or other article. The tape is composed of a paper layer, a layer formed of oriented plastic film which is adhesively laminated to the paper layer, and a heat-activatable adhesive exposed for use in adhering the paper-plastic film la

A heat-activated sealing tape for manufacturing or sealing a carton or other article. The tape is composed of a paper layer, a layer formed of oriented plastic film which is adhesively laminated to the paper layer, and a heat-activatable adhesive exposed for use in adhering the paper-plastic film laminate to an object. The heat activatable adhesive is inactive at ambient temperatures. When exposed to low temperature heat sealing conditions, the adhesive is activated and enables the tape to be adhered to the article to be sealed. The sealing tape is designed for ease of handling and reduction in waste, and is adaptable for use in existing automatic and semi-automatic equipment for manufacturing or sealing cartons.

대표청구항 ▼

[ What is claimed is:] [1.] A heat-activatable tape comprising:a paper layer;a layer of a plastic film having first and second surfaces, and which is oriented to increase its strength, the first surface adhesively cold laminated to the paper layer to form a paper-plastic film laminate; anda heat-act

[ What is claimed is:] [1.] A heat-activatable tape comprising:a paper layer;a layer of a plastic film having first and second surfaces, and which is oriented to increase its strength, the first surface adhesively cold laminated to the paper layer to form a paper-plastic film laminate; anda heat-activatable pressure sensitive adhesive comprising a non-blocking polymer for adhering the paper-plastic film laminate to an object after being heat-activated, the heat activatable adhesive being inactive at ambient temperatures but activated upon exposure to a temperature which is less than that which will significantly deteriorate the strength of the oriented plastic film.