Self-extinguishing polymeric compositions and production process

Incorporating inorganic compounds with phosphorus and nitrogen, coated with inactive materials, addresses the flammability and toxicity issues of petroleum-derived materials, providing effective non-flammable and self-extinguishing properties for diverse applications.

WO2026060510A1 Publication Date: 2026-03-26SB QUÍMICA SERTÃOZINHO LTDA
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Patent Information

Application Number
PCT/BR2025/050417
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-09-18
Filing Date
2025-09-18
Publication Date
2026-03-26

AI Technical Summary

Technical Problem

Existing petroleum-derived materials, such as plastics and fibers, lack effective non-flammable and self-extinguishing properties, leading to high flammability and potential for toxic gas release during fires, with current additives compromising physical properties and processability.

Method used

Incorporation of inorganic compounds containing phosphorus (P) and nitrogen (N) with inactive coatings, such as polysiloxane or paraffin, to delay oxygen supply, reduce temperature, and form extinguishing liquids, ensuring non-toxic fire extinguishment.

Benefits of technology

Achieves excellent non-flammability and self-extinguishing properties without toxic gas release, maintaining material integrity and processability, suitable for various applications including fibers, plastics, and films.

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Abstract

The present patent of invention relates to an innovative composition with excellent non-flammable and self-extinguishing properties for composite materials, from which many useful molded materials can be produced, and also to the provision of inorganic compounds coated with an inert material, defined as a material that does not exhibit reactivity with the inorganic compounds. The present invention provides organic materials and, more particularly, relates to highly polymeric materials having excellent fire-retardant properties, such as those employed in the manufacture of molding and extrusion compositions, film sheets, fibers, textiles, papers, surface or coating compositions, impregnating agents, solid forms, rubbers, and the like. The invention may also be applied especially to wet-spun and dry-spun fibers, such as acrylic fiber, polyvinyl alcohol fiber and viscose rayon, and melt-spun fibers, such as nylon, polyester fiber, and other fibers, such as di- or triacetate cellulose fibers. The invention is also applicable to plastics and films, by adding said inorganic compounds prior to molding. Another noteworthy feature of this invention is that when, for example, fibers produced by the process are ignited, no toxic gas is generated before the fire is extinguished.
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