| 摘要 |
The compsn. contains one or more phosphate esters of formula: (where R is >=2C alkyl, or cycloalkyl, contg. 1-4 halogen atoms of which none is linked to a C atom itself linked to O; R' is R or alkyl, opt. substd. by aryl, aryloxy, alkoxy, or polyalkyleneoxy, or cycloalkyl opt. substd. by alkyl, alkoxy or polyalkylenoxy, or aryl, opt. substd. by alkyl, alkoxy, alkylenoxy or halogen; R" is R' or the radical. (where X is alkyl substd. with halogen, or aliphatic contg. ether gps. or a benzene nucleus substd. with alkyl, alkoxy or halogen; n is 1-4). It is used in pneumatic tyres and provides stability in use at high speed and temp. |
