| 摘要 |
<p>1325892 Sealant composition J J PACKO 5 Aug 1970 [20 Aug 1969] 37886/70 Heading C3T [Also in Division F2] A composition comprises a mixture of a volatilizable metal alkyl (I) and a volatilizable organosilane (II) which mixture is characterized by reacting with oxygen and/or moisture at the site of a leak to form a seal. The composition may additionally comprise a dry inert gas. I may be an alkyl of zinc cadmium or aluminium, e.g. diethyl zinc or triethyl aluminium. II may be tetraethoxy-, dimethyldiethoxy-, n-propyltrimethoxy-, diisopropoxydimethoxy- or trimethylethoxy-silane. The concentration of I is preferably below 30% by volume. Uses.-Sealing leaks in pipes and vessels.</p> |
