Y BEING A PERFLUOROALKYLENE RADICAL CONTAINING AT LEAST ONE ETHER OR THIOETHER LINKAGE, RF BEING A MONOVALENT POLYFLUORINATED HYDROCARBON RADICAL OF NO MORE THAN 12 CARBON ATOMS, X BEING BROMINE OR IODINE. TRIAZINE POLYMERS OF THESE COMPOUNDS ARE ALSO DISCLOSED, AS HEAT-STABLE ELASTOMERS.
Abstract:
1,230,931. Lubricants. DOW CORNING CORP. 1 April, 1969 [2 Aug., 1968], No. 16907/69. Heading C5F. [Also in Division C3] A lubricant comprises a fluid siloxane having at least one unit of the formula wherein X represents a hydroxy radical or a hydrolysable group removable from the silicon atom by reaction with water at room temperature, R represents hydrogen, a monovalent hydrocarbon radical, optionally substituted by Cl, Br or I, or a R 1 CH 2 CH 2 - radical where R 1 is a perfluoroaliphatic radical, R f represents a perfluoroalkylene or perfluorocycloalkylene radical, either of which may further contain one or more C-O-C or C-S-C linkages, a, a 1 , b and b 1 are each 0 to 3 inclusive provided that the sum of a, a 1 , b and b 1 does not exceed 5. In Example 19 the lubricating characteristics are described for a siloxane polymer of the formula
Abstract:
IN WHICH Rf is a polyfluorinated alkyl radical of no more than 12 carbon atoms and n has a value of from 1 to 10 inclusive. Fluoroalkylenetriazines containing silanes, silanols and siloxanes are disclosed as fluids, resins and elastomers.
Abstract:
Fluorocompounds of the formula CH=CH2(CH2CH2)nRfCH2OR in which Rf is a perfluoroalkylene radical of no more than 18 carbon atoms and R is a hydrogen atoms or acyl radical. These monomers can be polymerized with a free radical catalyst to give OR THE COMPOUNDS CAN BE REACTED WITH *SiH to give the corresponding substituted silicon atom. The novel silicon containing compounds are useful as elastomers, lubricants, and coating compositions.
UNITS, IN WHICH Rf is a monobromoperfluoroalkyl radical, are disclosed as nonflammable fluid lubricants and as nonflammable elastomers which have high-temperature stability.