A lubricant with a polyacrylate based on c13/15 acrylate

Abstract

The present invention relates to a lubricant comprising a polyacrylate which contains a C 13/15 acrylate in polymerized form, where the C 13/15 acrylate comprises at least 70 wt % of linear and branched C 13 and C 15 alkyl (meth)acrylates. It further relates to the polyacrylate, to the C 13/15 acrylate, to a method for preparing the polyacrylate by free-radical polymerization of the C 13/15 acrylate, and to a method for preparing a lubricant by contacting the polyacrylate to a base oil.

1 .- 15 . (canceled) 
     
     
         16 . A lubricant comprising a polyacrylate which contains a C 13/15  acrylate in polymerized form, where the C 13/15  acrylate comprises at least 70 wt % of linear and branched C 13  and C 15  alkyl (meth)acrylates. 
     
     
         17 . The lubricant according to  claim 16  where the linear and branched C 13  and C 15  alkyl groups of the C 13/15  acrylate are derived from a C 13/15  alkanol obtained by reacting a monoolefin mixture of C 12  and C 14  olefins with carbon monoxide and hydrogen. 
     
     
         18 . The lubricant according to  claim 16  where the C 13/15  acrylate comprises less than 5 wt % of each C 12 , C 14  and C 16  alkyl (meth)acrylate. 
     
     
         19 . The lubricant according to  claim 16  where the C 13/15  acrylate comprises a weight ratio of branched C 13  and C 15  alkyl to linear C 13  and C 15  alkyl in a range from 3:1 to 1:3. 
     
     
         20 . The lubricant according to  claim 16  where the C 13/15  acrylate comprises at least 40 wt % of branched C 13  and C 15  alkyl groups. 
     
     
         21 . The lubricant according to  claim 16  where the C 13/15  acrylate comprises 35 to 85 wt % of linear and branched C 13  alkyl groups. 
     
     
         22 . The lubricant according to  claim 16  where the C 13/15  acrylate comprises 15 to 50 wt % of branched C 13  alkyl groups. 
     
     
         23 . The lubricant according to  claim 16  where the C 13/15  acrylate comprises 20 to 60 wt % of linear C 13  alkyl groups, 10 to 50 wt % of branched C 13  alkyl groups, 3 to 30 wt % of linear C 15  alkyl groups, and 3 to 30 wt % of branched C 15  alkyl groups. 
     
     
         24 . The lubricant according to  claim 16  where the polyacrylate comprises at least 50 wt % of the C 13/15  acrylate. 
     
     
         25 . The lubricant according to  claim 16  where the polyacrylate comprises up to 25 wt % of a comonomer selected from C 1 -C 18  alkyl (meth)acrylate. 
     
     
         26 . The lubricant according to  claim 16  comprising 0.1 to 40 wt % of the polyacrylate. 
     
     
         27 . A polyacrylate as defined in  claim 16 . 
     
     
         28 . A C 13/15  acrylate as defined in  claim 16 . 
     
     
         29 . A method for preparing the polyacrylate as defined in  claim 16  by free-radical polymerization of the C 13/15  acrylate as defined in  claim 16 . 
     
     
         30 . A method for preparing a lubricant by contacting the polyacrylate as defined in  claim 16  to a base oil.