公开(公告)号：US20220118473A1

公开(公告)日：2022-04-21

申请号：US17432448

申请日：2020-02-25

申请人： 3M INNOVATIVE PROPERTIES COMPANY

发明人： Mark E. NAPIERALA ,  Thomas Q. CHASTEK ,  Robert D. WAID ,  Ilya A. SALNIKOV ,  Petrus J. BEKKER

IPC分类号： B05C5/00 ,  B05C5/02

摘要： Provided are dispensing devices and methods for a filament adhesive. The dispensing devices use a barrel including one or more heating elements, and a rotatable screw received in the barrel, the rotatable screw optionally including at least one mixing element. An inlet extends through a side of the barrel for receiving the filament adhesive, the inlet including a beveled nip point to prevent breakage of the filament adhesive as it is drawn into the barrel. An outlet at a distal end of the barrel for dispensing the filament adhesive in molten form. Using the provided dispensing devices, and optionally with the assistance of a computer, adhesives can be precisely applied to pre-determined locations on a substrate.