Lens solution, contact lens, and production method therefor

Abstract

Provided is a lens solution which has excellent lipid detergency, exhibits high hydrophilization performance, and exhibits an excellent lipid adhesion preventive effect and an excellent lubricity-imparting effect when the solution is used to coat a lens. Disclosed is a lens solution containing a polymer having 2.5% to 95% by mass of the following repeating unit (A) and 2.5% to 95% by mass of the following repeating unit (B): (A) a hydrophilic repeating unit; and (B) a repeating unit having a polyoxyalkylene group in a side chain and having the end of the side chain formed from an alkyl group having 5 to 30 carbon atoms, an alkanoyl group having 5 to 30 carbon atoms, or an aryl group.

1 . A polymer comprising 2.5% to 95% by mass of the following repeating unit (A) and 2.5% to 95% by mass of the following repeating unit (B):
 (A) a hydrophilic repeating unit; and   (B) a repeating unit having a polyoxyalkylene group in a side chain and having the end of the side chain formed from an alkyl group having 5 to 30 carbon atoms, an alkanoyl group having 5 to 30 carbon atoms, or an aryl group, wherein   the repeating unit (A) comprises a repeating unit (A-3) represented by the following formula (4) and a betaine-containing repeating unit (A-6) represented by the following formula (7):   
       
         
           
           
               
               
           
         
         in which in formula (4),
 R 12  represents a hydrogen atom or a methyl group; and 
 R 13  and R 14  each independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or a hydroxyalkyl group, 
 
       
       
         
           
           
               
               
           
         
         in which in formula (7),
 Y represents —(C═O)O − , —(O═S═O)O − , —O(O═S═O)O − , —(S═O)O − , —O(S═O)O − , —OP(═O)(OR 24 )O—, —OP(═O)(R 24 )O − , —P(═O)(OR 24 )O − , or —P(═O)(R 24 )O − , wherein R 24  represents an alkyl group having 1 to 3 carbon atoms; 
 R 19  represents a hydrogen atom or a methyl group; 
 R 20  and R 21  each independently represent a divalent organic group having 1 to 10 carbon atoms; and 
 R 22  and R 23  each independently represent a hydrocarbon group having 1 to 10 carbon atoms. 
 
       
     
     
         2 . The polymer according to  claim 1 , wherein R 13  and R 14  in formula (4) each independently represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms. 
     
     
         3 . The polymer according to  claim 1 , wherein R 20  and R 21  in formula (7) each independently represent a divalent hydrocarbon group having 1 to 10 carbon atoms. 
     
     
         4 . The polymer according to  claim 1 , wherein the repeating unit (B) is represented by the following formula (10): 
       
         
           
           
               
               
           
         
         in which in formula (10),
 R 32  represent an alkylene group having 2 to 4 carbon atoms; 
 R 33  represents an alkyl group having 5 to 30 carbon atoms, an alkanoyl group having 5 to 30 carbon atoms, or an aryl group; 
 R 34  represents a hydrogen atom or a methyl group; 
 R 35  represents —O—, **—(C═O)—O − , **—(C═O)—NR 36 —, **—NR 36 —(C═O)—, wherein R 36  represents a hydrogen atom or an organic group having 1 to 10 carbon atoms; and the symbol ** represents the position at which the moiety is bonded to the carbon atom to which R 34  in formula (10) is bonded, or a phenylene group; and 
 m represents 2 to 100 as an average value. 
 
       
     
     
         5 . The polymer according to  claim 4 , wherein R 33  in formula (10) represents an alkyl group having 5 to 30 carbon atoms. 
     
     
         6 . The polymer according to  claim 4 , wherein R 35  in formula (10) represents **—(C═O)—O − , **—(C═O)—NR 36 —, **—NR 36 —(C═O)— or a phenylene group. 
     
     
         7 . The polymer according to  claim 1 , further comprising one or more of a repeating unit (C) selected from the group consisting of a repeating unit (C-1) represented by the following formula (11), and a repeating unit (C-2) having a group represented by the following formula (12) at the end of a side chain: 
       
         
           
           
               
               
           
         
         in which in formula (11),
 R 37  represent a hydrogen atom or a methyl group; 
 R 38  represents —O—, ***—(C═O)—O − , ***—(C═O)—NR 40 —, ***—NR 40 —(C═O)—, wherein R 40  represents a hydrogen atom or an organic group having 1 to 10 carbon atoms; and the symbol *** represents the position at which the moiety is bonded to the carbon atom to which R 37  in formula (11) is bonded), or a phenylene group; and 
 R 39  represents a hydrocarbon group having 4 to 30 carbon atoms, 
 
       
       
         
           
           
               
               
           
         
         in which in formula (12),
 R 41  represents a divalent organic group having 1 to 10 carbon atoms; 
 R 42  and R 43  each independently represent an organic group having 1 to 10 carbon atoms; 
 R 44 , R 45  and R 46  each independently represent —OSi(R 49 ) 3 , wherein R 49 's each independently represent a hydrogen atom or an organic group having 1 to 8 carbon atoms, or an organic group having 1 to 10 carbon atoms; and 
 r represents 0 to 200 as an average value. 
 
       
     
     
         8 . The polymer according to  claim 7 , wherein the repeating unit (C) is the repeating unit (C-1). 
     
     
         9 . The polymer according to  claim 7 , wherein a content of the repeating unit (C) is 0.1% by mass to 40% by mass.