Use of Poly(Biphenyl Ether Sulfone)S

Abstract

Use of an effective amount (ε) of a poly(biphenyl ether sulfone) (P2) for diluting a poly(aryl ether ketone) (P1) contained in a polymer composition (C1) consisting of the poly(aryl ether ketone) (P1) and, optionally in addition, one or more ingredients (A) other than the poly(aryl ether ketone) (P1) and the poly(biphenyl ether sulfone) (P2), while at least substantially maintaining the friction and/or wear resistance of the polymer composition (C1) with regard to a surface (Σ) with regard to which respectively the friction and/or wear resistance of the poly(biphenyl ether sulfone) (P2) are not as good as respectively the friction and/or wear resistance of the poly(aryl ether ketone) (P1).

1 - 16 . (canceled) 
     
     
         17 . A method for diluting a poly(aryl ether ketone) (P1) contained in a polymer composition (C1) while at least substantially maintaining the friction and/or wear resistance of the polymer composition (C1) in the need thereof
 said polymer composition (C1) consisting of the poly aryl ether ketone) (P1) and, optionally in addition, one or more ingredients (A) other than the poly(aryl ether ketone) (P1) and a poly(biphenyl ether sulfone) (P2),   said friction and/or wear resistance of the polymer composition being at least substantially maintained with regard to a surface (Σ) with regard to which respectively the friction and/or wear resistance of the poly(biphenyl ether sulfone) (P2) are not as good as respectively the friction and/or wear resistance of the poly(aryl ether ketone) (P1),   said method comprising diluting the poly(aryl ether ketone) (P1) an effective amount (ε) of the poly(biphenyl ether sulfone) (P2).   
     
     
         18 . The method according to  claim 17 , wherein the effective amount (ε) of the poly(biphenyl ether sulfone) P2) is below 40 parts by weight (pbw.),
 said effective amount (81 of the poly(biphenyl ether sulfone) (P2) diluting the polyaryl ether ketone) (P1) contained in the polymer composition (C1) in an amount of 100 pbw., by replacing in said polymer composition (C1), ε pbw. of the poly aryl ether ketone) (P1) by ε pbw. of the poly(biphenyl ether sulfone) (P2), thereby obtaining a polymer composition (C2) consisting of (100-ε) pbw. of the poly(aryl ether ketone) (P1), ε pbw. of the poly(biphenyl ether sulfone (P2), and, optionally in addition, the one or more ingredients (A).   
     
     
         19 . The method according to  claim 18 , wherein the effective amount (ε) of the poly(biphenyl ether sulfone) (P2) is below 30 pbw. 
     
     
         20 . The method according to  claim 18 S wherein the effective amount (ε) of the poly(biphenyl ether sulfone) (P2) ranges between 2 and 25 pbw. 
     
     
         21 . The method according to  claim 17  wherein the friction and/or wear resistance of the polymer composition (C1) are at least essentially maintained. 
     
     
         22 . The method according to  claim 17 , wherein the wear resistance of the polymer composition (C1) with regard to the surface (Σ) is at least substantially maintained. 
     
     
         23 . The method according to  claim 17 , wherein the poly(biphenyl ether sulfone) (P2) is a polymer of which essentially all the recurring units are recurring units (R2) of one or more formulae containing at least one p-biphenylene group: 
       
         
           
           
               
               
           
         
       
       at least one ether group (—O—) and at least one sulfone group (—SO 2 —). 
     
     
         24 . The method according to  claim 17  wherein the poly(biphenyl ether sulfone) (P2) is a polymer of which more than 50 wt. % of the recurring units are recurring units (R2) of formula 
       
         
           
           
               
               
           
         
       
     
     
         25 . The method according to  claim 17 , wherein the poly(biphenyl ether sulfone) (P2) is a polyphenylsulfone (PPSU) homopolymer of which essentially all the recurring units are recurring units (R2) of formula 
       
         
           
           
               
               
           
         
       
     
     
         26 . The method according to  claim 17 , wherein the poly(aryl ether ketone) (P1) is a polymer of which essentially all the recurring units are recurring units (R1) of one or more formulae containing at least one arylene group, at least one ether group (—O—) and at least one ketone group [—C(═O)—]. 
     
     
         27 . The method according to  claim 17 , wherein the poly(aryl ether ketone) (P1) is a polymer of which more than 50 wt. % of the recurring units are recurring units (R1) of formula 
       
         
           
           
               
               
           
         
       
     
     
         28 . The method according to  claim 17 , wherein the poly(aryl ether ketone) (P1) is a PEEK homopolymer of which essentially all the recurring units are recurring units R1) of formula 
       
         
           
           
               
               
           
         
       
     
     
         29 . The method according to  claim 17 , wherein part or all of the surface (Σ) is constituted of a material selected from the group consisting of metals, steel, bronze and high engineering thermoplastics. 
     
     
         30 . The method according to  claim 18 , which is a method for diluting the poly(aryl other ketone) (P1) while at least substantially maintaining the wear resistance of the polymer composition (C1), wherein the wear resistance of the polymer compositions (C1) and (C2) with regard to the surface (Σ) is assessed by means of a Taber® abraser comprising an abrader wheel evaluating the haze variation or weight loss of the polymer compositions (C1) and (C2) after they have been placed on top of the abrader wheel and have been allowed to spin for a specified number of revolutions. 
     
     
         31 . The method according to  claim 17 , wherein the polymer composition (C1) is in the form of a shaped article or a part of shaped article (S1). 
     
     
         32 . A polymer composition (C2) consisting of:
 a poly(aryl ether ketone) (P1)   an effective amount (s) of a poly(biphenyl ether sulfone) (P2), and   optionally in addition, one or more ingredients (A) other than the poly(aryl ether ketone) (P1) and the poly(biphenyl ether sulfone) (P2),   
       wherein the friction and/or wear resistance of said polymer composition (C2) with regard to a surface (Σ) with regard to which respectively the friction and/or wear resistance of the poly(biphenyl ether sulfone) (P2) are not as good as respectively the friction and/or wear resistance of the poly aryl ether ketone) (P1), are at least substantially maintained, when compared to those of a polymer composition (C1) identical to the polymer composition (C2), except the poly biphenyl ether sulfone) (P2) contained in the polymer composition (C2) has been completely replaced, weight pro weight, by the poly(aryl ether ketone) (P1). 
     
     
         33 . A shaped article (S2) composed of the polymer composition (C2) according to  claim 32 . 
     
     
         34 . A part of a shaped article (S2) composed of the polymer composition (C2) according to  claim 32 . 
     
     
         35 . An article assembly comprising the part according to  claim 34 . 
     
     
         36 . A method for diluting a poly(aryl ether ketone) (P1) contained in a polymer composition (C1) in an amount of 100 parts by weight (pbw), while at least substantially maintaining the wear resistance of the polymer composition (C1) in the need thereof,
 said polymer composition (C1) consisting of the poly(aryl ether ketone) (P1) and, optionally in addition, one or more ingredients (A) other than the poly aryl ether ketone) (P1) and a poly(biphenyl ether sulfone) (P2),   said poly(aryl ether ketone) (P1) being a PEEK homopolymer of which essentially all the recurring units are recurring units (R1) of formula   
       
         
           
           
               
               
           
         
         said poly(biphenyl ether sulfone) (P2) being a polyphenylsulfone (PPSU) homopolymer of which essentially all the recurring units are recurring units (R2) of formula 
       
       
         
           
           
               
               
           
         
         said wear resistance of the polymer composition (C1) being at least substantially maintained with regard to a surface (Σ) with regard to which respectively the wear resistance of the poly(biphenyl ether sulfone) (P2) are not as good as respectively the wear resistance of the poly(aryl ether ketone) (P1), 
         said method comprising diluting the poly(aryl ether ketone) (P1) by an effective amount (ε) of below 50 pbw. of the poly(biphenyl ether sulfone) (P2), by replacing in said polymer composition (C1), ε pbw. of the poly(aryl ether ketone) (P1) by ε pbw. of the poly(biphenyl ether sulfone) (P2), thereby obtaining a polymer composition (C2) consisting of (100-ε) pbw. of the poly(aryl ether ketone) (P1), ε pbw. of the poly(biphenyl ether sulfone) (P2), and, optionally in addition, the one or more ingredients (A), 
         wherein the wear resistance of the polymer compositions (C1) and (C2) with regard to the surface (Σ) is assessed by means of a Taber® abraser comprising an abrader wheel, evaluating the haze variation or weight loss of the polymer compositions (C1) and (C2) after they have been placed on top of the abrader wheel and have been allowed to spin for a specified number of revolutions.