Surface-Treating Agents, Surface-Treated Powders, And Cosmetics Comprising The Same

Abstract

To provide surface-treating agents that can provide excellent hydrophobicity to powder and can improve its rinsability, to provide surface-treated powders that are treated with the surface-treating agent, and to provide cosmetics that comprise the surface-treated powder. A surface-treating agent consisting of a polymer which comprises a monomer (A) represented by the general formula (1) described below as a constituent monomer. (wherein R 1 represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R 2 represents an alkylene group having 4 to 22 carbon atoms, X 1 represents an —NH— group or an oxygen atom, and M 1 represents a hydrogen atom or a monovalent inorganic or organic cation.)

1 : A surface-treating agent consisting of a polymer which comprises a monomer (A) represented by the general formula (1) described below as a constituent monomer. 
       
         
           
           
               
               
           
         
       
       wherein R 1  represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R 2  represents an alkylene group having 4 to 22 carbon atoms, X 1  represents an —NH— group or an oxygen atom, and M 1  represents a hydrogen atom or a monovalent inorganic or organic cation. 
     
     
         2 : The surface-treating agent of  claim 1 , wherein the polymer comprises at least 70 mole % of monomer (A). 
     
     
         3 : The surface-treating agent of  claim 1 , wherein the polymer further comprises a monomer (B) represented by any one of general formulas (2) to (7): 
       
         
           
           
               
               
           
         
       
       wherein R 3  represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R 4  represents an alkylene group having 1 to 4 carbon atoms, X 1  represents an —NH— group or an oxygen atom, and M 2  represents a hydrogen atom or a monovalent inorganic or organic cation; 
       
         
           
           
               
               
           
         
       
       wherein R 5  represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R 6  represents an alkyl group having 1 to 10 carbon atoms, a fluoroalkyl group, an aminoalkyl group, or a hydroxyalkyl group, and X 3  represents an —NH— group or an oxygen atom; 
       
         
           
           
               
               
           
         
       
       wherein R 7  represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R 8  represents an alkylene group having 1 to 4 carbon atoms, R 9 s may be the same or different and each represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, X 4  represents an —NH— group or an oxygen atom, and Y −  represents a monovalent organic or inorganic anion; 
       
         
           
           
               
               
           
         
       
       wherein R 10  represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R 11  represents an alkylene group having 1 to 4 carbon atoms, R 12  represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, X 5  represents an —NH— group or an oxygen atom, and l stands for an integer of 1 to 100; 
       
         
           
           
               
               
           
         
       
       wherein R 13  represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, the constituents R 14  may be the same or different and each represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, R 15  represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, X 6  represents an —NH— group or an oxygen atom, and m stands for an integer of 1 to 100; and, 
       
         
           
           
               
               
           
         
       
       wherein R 16  represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R 17  represents an alkylene group having 1 to 4 carbon atoms, X 7  represents an —NH— group or an oxygen atom, M 3  represents a hydrogen atom or a monovalent inorganic or organic cation, and n stands for an integer of 1 to 100. 
     
     
         4 : The surface-treating agent of  claim 3 , wherein the mole ratio (A):(B) of monomer (A) to monomer (B) is from 70:30 to 99.9:0.1. 
     
     
         5 : A surface-treated powder, including a coating comprising the surface-treating agent of  claim 1  on the powder surface. 
     
     
         6 : The surface-treated powder of  claim 5 , wherein the mass ratio of the polymer to the powder is from 3:97 to 40:60. 
     
     
         7 : A cosmetic comprising the surface-treating agent of  claim 1 . 
     
     
         8 : The surface-treating agent of  claim 2 , wherein the polymer further comprises a monomer (B) represented by any one of general formulas (2) to (7): 
       
         
           
           
               
               
           
         
       
       wherein R 3  represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R 4  represents an alkylene group having 1 to 4 carbon atoms, X 2  represents an —NH— group or an oxygen atom, and M 2  represents a hydrogen atom or a monovalent inorganic or organic cation; 
       
         
           
           
               
               
           
         
       
       wherein R 5  represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R 6  represents an alkyl group having 1 to 10 carbon atoms, a fluoroalkyl group, an aminoalkyl group, or a hydroxyalkyl group, and X 3  represents an —NH— group or an oxygen atom; 
       
         
           
           
               
               
           
         
       
       wherein R 7  represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R 8  represents an alkylene group having 1 to 4 carbon atoms, R 9 s may be the same or different and each represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, X 4  represents an —NH— group or an oxygen atom, and Y −  represents a monovalent organic or inorganic anion; 
       
         
           
           
               
               
           
         
       
       wherein R 10  represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R 11  represents an alkylene group having 1 to 4 carbon atoms, R 12  represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, X 5  represents an —NH— group or an oxygen atom, and l stands for an integer of 1 to 100; 
       
         
           
           
               
               
           
         
       
       wherein R 13  represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, the two constituents R 14  may be the same or different and each represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, R 15  represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, X 6  represents an —NH— group or an oxygen atom, and m stands for an integer of 1 to 100; and, 
       
         
           
           
               
               
           
         
       
       wherein R 16  represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R 17  represents an alkylene group having 1 to 4 carbon atoms, X 7  represents an —NH— group or an oxygen atom, M 3  represents a hydrogen atom or a monovalent inorganic or organic cation, and n stands for an integer of 1 to 100. 
     
     
         9 : A surface-treated powder, including a coating comprising the surface-treating agent of  claim 3  on the powder surface. 
     
     
         10 : A cosmetic comprising the surface-treating agent of  claim 2 . 
     
     
         11 : A cosmetic comprising the surface-treating agent of  claim 3 . 
     
     
         12 : A cosmetic comprising the surface-treating agent of  claim 4 . 
     
     
         13 : A cosmetic comprising the surface-treating powder of  claim 5 . 
     
     
         14 : A cosmetic comprising the surface-treating powder of  claim 6 .