abstract |
The invention relates to the field of producing polyurethane foam based on a composition comprising polyethers in combination with an extinguishing agent, and can be used in the preparation of insulating materials for various industries. The invention improves the fire resistance of PUF (mass loss up to 0.05%) due to the content in the composition based on polyethers, polyisocyanate, trichloroethyl phosphate, triethanolamine and water, 16-30 parts by weight of 50% phosphate-5-aminotetrazole . PU foam is obtained by mixing all the components. 2 tab. |