Abstract: The invention relates to a fireproof blanket which is used to protect people, furniture and property against fire. The inventive blanket is characterized in that the raw materials used comprise OPF which have been molecularly stabilized by means of thermal processing and PES. The process consists in mixing the two fibers in order to obtain the desired degree of fireproof performance and suitable tactile qualities such that it can be used for any application and can be brought into contact with the skin without causing any type of allergic reaction owing to the inert nature thereof.