Patent ID: 7285309
Filing Date: 2007-10-23
Classification: B05B,B05C,Y10S

Abstract:
1. A coating method by a wide slit nozzle comprising a slit as a discharge opening for a coated-type vibration damping material; the slit having a thickness along a coating direction of the coated-type vibration damping material and a width perpendicular to the coating direction, the thickness of the slit being smaller in dimension than the width of the slit so that the coated-type vibration damping material is coated while a size of the slit being set in a two-dimensional direction; the slit having a lateral center part and a pair of lateral end parts, the lateral center part having a fixed thickness or a thickness gradually decreasing toward its center, and each of the pair of the lateral end parts changing a thickness so that the thickness of the lateral end part decreases linearly from a corresponding lateral end of the lateral center part to a corresponding lateral end of the slit; the coating method comprising the step of: wherein, a total thickness at the overlapped portion at the adjacent lateral end parts of the plurality of the parallel disposed sheets of the coated-type vibration damping material becomes substantially equal to a thickness of the sheet of the coated-type vibration damping material discharged from the part lateral center part of the slit.