Kink for modificated regularized long-wave equation

A new version of the modified regularized long-wave equation is considered. The equations of such a type are used as an alternative to the Korteweg-de Vries equation. A modification of the equation consists in an accounting the term which describes an interaction of dispersion and dissipation. Using the direct Hirota method for nonlinear equations in partial derivatives a kink-type (antikink-type) solution for modified equation is constructed. A possibility to construct a coupled solution of kink and antikink is analysed.