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    • 18. 发明授权
    • Process for producing controlled viscosity fluorosilicone polymers
    • 生产受控粘度氟硅氧烷聚合物的方法
    • US07671161B2
    • 2010-03-02
    • US11549137
    • 2006-10-13
    • Nancy E. GoshJohn S. RazzanoAnping Wang
    • Nancy E. GoshJohn S. RazzanoAnping Wang
    • C08G77/24
    • C08G77/24
    • A process for making a fluorosilicone MDaDFbM′ where M=R1R2R3SiO1/2; M′=(OH)R6R7SiO1/2 or (OH)R4R5SiO1/2; D=R4R5SiO2/2; and DF=R6R7SiO2/2; where the subscript a is zero or positive, the subscript b is positive and the subscripts a and b satisfy the following relationship: b>0.4(a+b) and R1 is selected from the group of 1 to 20 carbon atom monovalent alkyl, aryl, or alkaryl hydrocarbon radicals and terminally unsaturated alkenyl groups of from 2 to 10 carbon atoms; R2, R3 are each independently any monovalent hydrocarbon radical: alkyl, aryl, or alkaryl of from 1 to 20 carbon atoms or R1 and each R4 and R5 are any monovalent hydrocarbon radical: alkyl, aryl, alkenyl, or alkaryl of from 1 to 20 carbon atoms, and R6 is a fluorine substituted 3 to 20 carbon atom monovalent hydrocarbon radical having no fluorine substitution on the alpha or beta carbon atoms of the radical and R7 is any monovalent hydrocarbon radical: alkyl, aryl, or alkaryl of from 1 to 20 carbon atoms or R6 by reacting 1) b moles of (R6R7SiO)3, with 2) a moles of (R4R5SiO)3, 3) R1R2R3SiOH and 4) an oxygenated promoter. Compositions made by the process and articles of manufacture made from the compositions.
    • 制备氟硅酮MDaDFbM的方法,其中M = R 1 R 2 R 3 SiO 1/2; M'=(OH)R6R7SiO1 / 2或(OH)R4R5SiO1 / 2; D = R4R5SiO2 / 2; DF = R6R7SiO2 / 2; 其中下标a为零或正,下标b为正,下标a和b满足以下关系:b> 0.4(a + b),R1选自1至20个碳原子的一价烷基,芳基 或烷芳基烃基和具有2-10个碳原子的末端不饱和烯基; R 2,R 3各自独立地为任何一价烃基:具有1-20个碳原子的烷基,芳基或烷芳基或R 1,并且每个R 4和R 5是任何一价烃基:1至20的烷基,芳基,链烯基或烷芳基 碳原子,R6是氟取代的3〜20个碳原子,在基团的α或β碳原子上不具有氟取代的一价烃基,R 7是任何一价烃基:1至20的烷基,芳基或烷芳基 碳原子或R6通过使1)b摩尔的(R6R7SiO)3与2)摩尔的(R 4 R 5 SiO)3,3)R 1 R 2 R 3 SiOH和4)含氧促进剂反应。 由组合物制成的方法和制品制成的组合物。