摘要:
A fluorine-containing organosilicon compound represented by Formula (I): ##STR1## wherein R.sup.1 represents a monovalent hydrocarbon group having 1 to 10 carbon atoms; R.sup.f represents a fluorine-containing group represented by the formula: C.sub.p F.sub.2p+1 -, where p is an integer of 3 to 6, ##STR2## where q is an integer of 1 or 2, or ##STR3## where q is as defined above; m is an integer of 0 to 2; and n is an integer of 3 or 4.This novel compound is useful for the preparation of fluorosilicone polymers having a good thermal resistance, chemical resistance and weathering resistance.
摘要:
A curable silicone composition comprising;(a) an organopolysiloxane having at least two silicon-bonded C.sub.2 to C.sub.8 alkenyl groups and containing a particular silicon-bonded fluorine-containing substituent;(b) an organohydrogenpolysiloxane having at least three silicon-bonded hydrogen atoms and a particular silicon-bonded fluorine-containing substituent; and(c) a catalyst; the proportion of said silicon-bonded hydrogen atoms in Component (b) to said silicon-bonded alkenyl groups in Component (a) being at least 0.5. This composition can form a film, on various substrates, having good release properties, water repellency and oil repellency.
摘要:
Organopolysiloxane compositions are provided which are curable by condensation reaction taking place between a first component, hydroxy-terminated diorganopolysiloxane and a second component, organohydrogenpolysiloxane by aid of a third component, a condensation catalyst, and which are made to have their pot life extended by adding a fourth component, acyloxysilane, optionally in combination with a carboxylic acid, as a condensation retarder. The addition of the retarder does not adversely effect the curing velocity of the composition even at an elevated temperature and the properties of the cured composition.