摘要:
An organopolysiloxane composition comprising (A) a linear, alkenyl-containing, fluorinated organopolysiloxane, (B) a cyclic fluorinated organosiloxane as a tackifier, (C) an organohydrogenpolysiloxane having at least two hydrogen atoms attached to a silicon atom in a molecule, and (D) a platinum group metal catalyst has excellent properties inherent to fluorinated silicone rubber, and cures into products having adhesion and close contact to various materials including metals, glass and resins.
摘要:
A curable silicone composition comprising; (a) an organopolysiloxane having in its molecule at least two silicon-bonded C₂ to C₈ alkenyl groups and containing in its molecule at least one selected from the group consisting of silicon-bonded fluorine-containing substituents represented respectively by Formulas (1) to (4): where n is an integer of 1 to 5. where n is an integer of 1 to 5. C m F 2m+1 CH₂CH₂OCH₂CH₂CH₂- (3) where m is an integer of 3 to 10. C m F 2m+1 CH₂OCH₂CH₂CH₂- (4) where m is an integer of 3 to 10. (b) an organohydrogenpolysiloxane having in its molecule at least three silicon-bonded hydrogen atoms; and (c) a catalyst for addition reaction between said silicon-bonded alkenyl groups and said silicon-bonded hydrogen atoms; 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 propaties, water repellency and oil repellency.
摘要:
A fluorine-containing organosilicon compound represented by the following general formula:
wherein R represents an alkyl group or an aryl group, a is an integer of 1 to 7, b is an integer of 2 to 8, and c is an integer of 1 to 3. This compound is useful as a surface treating agent for silicas, an adhesive improver for resists, an oil- or water-repellent treating agent, and a raw material for synthesis of various silicone compounds.
摘要:
A chain organopolysiloxane is obtained by polymerizing a fluorine-containing cyclotrisiloxane of the general formula : (wherein R 1 is a monovalent hydrocarbon group, and Rf is a perfluoroalkyl group or perfluoroalkyl ether group) in the presence of a lithium silanolate catalyst, silylating the resulting polymerization product, and treating the silylated product at a temperature of not lower than 100°C under a reduced pressure of not higher than 10 -1 mmHg to remove volatile components therefrom. The organopolysiloxane is essentially free of volatile low-molecular siloxanes. Therefore, the chain organopolysiloxane can be used without the problems which might arise from the volatile low-molecular siloxanes, such as evaporation of low-molecular siloxanes from a cured rubber product with the result of electrical-contact troubles.
摘要:
A cyclotrisiloxane represented by the general formula (1):
wherein R¹, R², R³, R⁴ and R⁵ may be the same or different and are each an alkyl group of 1 to 3 carbon atoms and X is a cyclohexyl group or an alkyl group expressed by the formula:
-C n H 2n+1
where n is an integer of 4 to 15. The cyclotrisiloxane is useful as an intermediate for producing silicone oils and silicone rubbers, and the obtained silicone oils and silicone rubbers are excellent in lubricity.
摘要翻译:由通式(1)表示的环三硅氧烷:其中R 1,R 2,R 3,R 4和R 5可以相同或不同,并且各自为烷基 1至3个碳原子的基团,X是由下式表示的环己基或烷基:-C n H 2n + 1其中n是4至15的整数。环三硅氧烷可用作制备硅油和硅橡胶的中间体 所得到的硅油和硅橡胶的润滑性优异。
摘要:
An extremely reactive and highly copolymerizable hexafluoropropylene oxide oligoether derivative, to give bi- or ter-polymers with fluoroolefins and perfluoroalkyl vinyl ethers, which is represented by general formula:
wherein X is a fluorine atom or trifluoromethyl group; and n is an integer of 2-5.