Abstract: A method is for producing a wet-running friction paper, at least containing a fiber fraction consisting of at least one type of fiber, a fraction of at least one filler, and a fraction of a binder based on phenol resin. The fiber fraction, the filler fraction and the binder dissolved as a phenolate solution are processed together in a paper production process to form a pulp, and the binder is subsequently precipitated by means of a precipitating agent, preferably diluted sulfuric acid, and the pulp applied to a long screen is dried and cured while the temperature is raised.

Abstract: A method for producing a wet-running friction paper includes providing a fiber portion with a fiber, providing a filler portion with a filler, providing a binder portion with a phenol-resin-based binder, dissolving the binder portion to form a phenolate, and processing the fiber portion, the filler portion and the phenolate in a paper production process to form the wet-running friction paper.

Abstract: A method for producing a thermal insulating paper includes producing the thermal insulating paper in a classic paper production process from a raw material having materials with good thermal properties and materials with electrically insulating properties in a paper matrix. A thermal insulating paper produced using the above method may include inorganic fibers, electrical insulators, aramid fibers, or binders.