Fluorine-containing organopolysiloxane, dispersibility-improving agent for fluorocarbon resin powders, and organic resin composition

Abstract

A fluorine-containing organopolysiloxane represented by general formula where R is a monovalent hydrocarbon group or a halogen-substituted monovalent hydrocarbon group comprising 1 to 10 carbon atoms, R 1 is selected from the group consisting of an alkylene group, an alkylenoxyalkylene group, or a group produced by inserting ═CO or —COO— in an alkylene chain, R 2 is a monovalent hydrocarbon group or a halogen-substituted monovalent hydrocarbon group comprising 1 to 10 carbon atoms, Q 1 is an alkylene group comprising 1 to 10 carbon atoms, and Q 2 is an end-blocked polystyrene chain or polymethylstyrene chain with a degree of polymerization of 3 or greater, x is an integer of 0 or greater, y is an integer of 1 or greater, z is an integer of 1 or greater, d is an integer of 3 to 18, and e is 0 or 1. The present invention further comprises a fluorocarbon resin powder dispersibility improving agent consisting of the fluorine-containing organopolysiloxane, where e of the fluorine-containing organopolysiloxane is 0 and an organic resin composition containing such dispersing agent.

We claim:  
     
         1 . A fluorine-containing organopolysiloxane represented by general formula  
                   
       where R is a monovalent hydrocarbon group or a halogen-substituted monovalent hydrocarbon group comprising 1 to 10 carbon atoms, R 1  is selected from the group consisting of an alkylene group, an alkylenoxyalkylene group, and a group comprising ═CO or —COO— inserted in an alkylene chain, R 2  is a monovalent hydrocarbon group or a halogen-substituted monovalent hydrocarbon group comprising 1 to 10 carbon atoms, Q 1  is an alkylene group comprising 1 to 10 carbon atoms, Q 2  is an end-blocked polystyrene chain or polymethylstyrene chain with a degree of polymerization of 3 or greater, x is an integer of 0 or greater, y is an integer of 1 or greater, z is an integer of 1 or greater, d is an integer of 3 to 18, and e is 0 or 1.  
     
     
         2 . The fluorine-containing organopolysiloxane of    claim 1    in which e is zero.  
     
     
         3 . The fluorine-containing organopolysiloxane of    claim 2    where x+y+z is five or greater.  
     
     
         4 . An organic resin composition comprising fluorocarbon resin powder, an organic resin, and a fluorine-containing organopolysiloxane represented by general formula  
                   
       where R is a monovalent hydrocarbon group or a halogen-substituted monovalent hydrocarbon group comprising 1 to 10 carbon atoms, R 1  is selected from the group consisting of an alkylene group, an alkylenoxyalkylene group, and a group comprising ═CO or —COO— inserted in an alkylene chain, R 2  is a monovalent hydrocarbon group or a halogen-substituted monovalent hydrocarbon group comprising 1 to 10 carbon atoms, Q 1  is an alkylene group comprising 1 to 10 carbon atoms, Q 2  is an end-blocked polystyrene chain or polymethylstyrene chain with a degree of polymerization of 3 or greater, x is an integer of 0 or greater, y is an integer of 1 or greater, z is an integer of 1 or greater, d is an integer of 3 to 18, and e is 0.  
     
     
         5 . The organic resin composition of    claim 4   , where x+y+z is 5 or greater.  
     
     
         6 . The organic resin composition of    claim 4   , where the fluorine-containing organopolysiloxane has a molecular weight of 1,000 to 1,000,000.  
     
     
         7 . The organic resin composition of    claim 4   , where the fluorine-containing organopolysiloxane has a molecular weight of 10,000 to 100,000.  
     
     
         8 . The organic resin composition of    claim 4   , where the fluorine-containing organopolysiloxane comprises 1 to 70 weight percent fluorine atoms.  
     
     
         9 . The organic resin composition of    claim 4   , where the fluorine-containing organopolysiloxane comprises 5 to 50 weight percent fluorine atoms.  
     
     
         10 . The organic resin composition of    claim 4    comprising 0.1 to 30 parts by weight of the fluorine-containing organopolysiloxane per 100 parts by weight of the fluorocarbon resin powder.  
     
     
         11 . The organic resin composition of    claim 4   , where the fluorine-containing organopolysiloxane has an average compositional formula selected from the group consisting of  
                   
     
     
         12 . The fluorine-containing organopolysiloxane having an average compositional formula selected from the group consisting of