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process for the manufacture of solid materials having a flash point of less than 500gradi centigrade, particularly useful as a fire alarm.autoestinguenti and autincendio
process for the manufacture of solid materials having a flash point of less than 500gradi centigrade, particularly useful as a fire alarm.autoestinguenti and autincendio
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机译:闪点低于500摄氏度的固体材料的制造方法,尤其适用于火灾报警器。自动燃烧和自燃
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摘要
Solid materials having a flash point of less than 500 DEG C. are rendered fire alarming by providing for the presence thereon of micro capsules containing a bromofluoroalkane having a critical temperature of at least 100 DEG C., the micro capsules having an external diameter of from 200 to 260 microns, and the wall of the capsules consisting of a polymer, treated to release the bromofluoralkane suddenly at a predetermined temperature to provide a detonation having a maximum sound level of 10-12 kHz.
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