COMPOSITION FOR ANTIBURNING PEARLY-COLORED COATING Russian patent published in 1997 - IPC

FIELD: production of antiburning heat resistant coatings. SUBSTANCE: proposed composition contains (%): 50-65 % aqueous suspension of polytetrafluoroethylene 55.0-72.8, modified pearly pigment on the base of mica 11.0-19.0, xylene 0.2-1.8, nonionic surfactant 0.2-1.8, ethylene glycol 4.0-8.0, aliphatic saturated alcohol 1.3-2.7, nitrate salt 0.1-0.3. Said pigment is modified by mixture of ethyl cellosolve, xylene, oxyethylated alkyl phenol and water at their ratio 1.0:2.0:2.0:2.5 respectively, mass ratio of mica and modified pigment being 22.5:77.5. Surfactant and xylene are added into modified pearly pigment and mixed. Then ethylene glycol and alcohol are added and thus obtained mixture is mixed. The process is followed by adding of aqueous suspension of polytetrafluoroethylene and salt nitrate. EFFECT: improves quality of desired product. 2 tbl