Method of applying fiber-like adhesive to a substrate

Abstract

Abstract A METHOD FOR FORMING AND CAUSING DEPOSITION OF FIBERLIKE LENGTHS OF AN ADHESIVE SUBSTANCE UPON A SIDE OF AN APERTURED SUBSTRATE. THE METHOD INCLUDES THE STEPS OF FORMING AND PROPELLING FIBER-LIKE LENGTHS OF THE ADHESIVE SUBSTANCE TOWARD THE SIDE OF THE APERTURED SUBSTRATE. SUBSTANTIALLY ALL OF THE FIBER-LIKE LENGTHS OF THE ADHESIVE SUBSTANCE ARE DEPOSITED ON THE SIDE OF THE SUBSTRATE IN A JACKSTRAW FASHION. THE FIBER-LIKE LENGHTS OF ADHESIVE SUBSTANCE DEPOISTED ON THE SIDE OF THE SUBSTRATE MAY BE TREATED AT AN ELEVATED TEMPERATURE. DURING HEAT TREATMENT OF THE FIBER-LIKE LENGTHS OF ADHESIVE SUBSTANCE AT THE ELEVATED TEMPERATURE, THE ADHESIVE SUBSTANCE MELTS AND DUE TO IS SURFACE TENSION TENDS TO ACCUMULATE ABOUT THE EDGES OF THE APERTURES OF THE APERTURED SUBSTRATE AS A SUBSTAINALLY CONTINUOUS MASS. IF DESIRED, THE OPPOSITE SIDE OF THE SUBSTRATE MAY ALSO HAVE THE ADHESIVE SUBSTANCE APPLIED THERETO IN THE SAME MANNER. A SHEET MATERIAL MAY BE PLACED CONTIGUOUS TO THE SIDE OF THE APERTURED SUBSTRATED CARRYING THE ADHESIVE SUBSTANCE. THE APPLICATION OF HEAT AND/OR PRESSURE TO THE CONTIGUOUS SUBSTRATE AND SHEET MATERIAL TENDS TO CAUSE THE ADHESIVE SUBSTANCE CARRIED BY THE SUBSTRATE TO FORM A FILLET-LIKE MASS WHICH GENERALLY EXTENDS BETWEEN THE SHEET MATERIAL AND THE APERTURED SUBSTRATE. THE FILLET OF THE ADHESIVE SUBSTANCE JOINS THE SHEET MATERIAL TO THE APERTURED SUBSTRATE TO PROVIDE SANDWICH STRUCTURE.

Inventors

• 👤 Emery P Miller

Bibliographic Details