New Polyarylene Composition

Abstract

Blend (B) comprising at least one polyarylene in a form other than fibers, and at least one poly(aryl ether ketone). Blend (T) comprising at least one polyarylene, at least one poly(aryl ether ketone) and at least one poly(aryl ether sulfone). Article or part of an article comprising the blend (B) or the blend (T).

1 - A blend (B) comprising:
 at least one polyarylene (P1) in a form other than fibers, and   at least one poly(aryl ether ketone) (P2).   
     
     
         2 - The blend (B) according to  claim 1 , wherein more than 25 wt. % of the recurring units of the polyarylene (P1) are recurring units (R1) chosen from optionally substituted phenylene groups which are linked by each of their two ends to two other optionally substituted phenylene groups via a direct C—C linkage,
 said recurring units (R1) being a mix of recurring units (R1-a) wherein the optionally substituted phenylene groups are optionally substituted p-phenylenes, with recurring units (R1-b) wherein the optionally substituted phenylene groups are either optionally substituted m-phenylenes or mixes of optionally substituted m-phenylenes with optionally substituted o-phenylenes,   wherein the mole ratio of the recurring units (R1-b), based on the total number of moles of the recurring units (R1-a) and (R1-b), ranges from 30% to 95%.   
     
     
         3 - The blend (B) according to  claim 2 , wherein the mole ratio of the recurring units (R1-b), based on the total number of motes of the recurring units (R1-a) and (R1-b), is of at least 40%. 
     
     
         4 - The blend (B) according to  claim 2 , wherein the mole ratio of the recurring units (R1-b), based on the total number of moles of the recurring units (R1-a) and (R1-b), is of at most 80%. 
     
     
         5 - The blend (B) according to  claim 2 , wherein
 more than 90 wt. % of the recurring units of the polyarylene (P1) are recurring units (R1),   the recurring units (R1-a) are p-phenylene groups substituted by at least one monovalent solubilizing group, and   the recurring units (R1-b) are m-phenylene groups optionally substituted by at least one monovalent solubilizing group.   
     
     
         6 - The blend (B) according to  claim 2 , wherein the polyarylene (P1) is a polyphenylene copolymer, essentially all the recurring units of which consist of a mix of phenylketone-substituted p-phenylene groups with unsubstituted m-phenylene groups, in a mole ratio p-phenylene:m-phenylene of from 30:70 to 70:30. 
     
     
         7 - The blend (B) according to  claim 2 , wherein the poly(aryl ether ketone) (P2) is a polyetheretherketone (PEEK) homopolymer, essentially all the recurring units of which being of formula 
       
         
           
           
               
               
           
         
       
     
     
         8 - The blend (B) according to  claim 2 , wherein the weight of the polyarylene (P1), based on the total weight of the polyarylene (P1) and the poly(aryl ether ketone) (P2), ranges from 30% to 70%. 
     
     
         9 - The blend (B) according to  claim 2 , wherein the total weight of the polyarylene (P1) and the poly(aryl ether ketone) (P2), based on the total weight of the blend (B), is above 80%. 
     
     
         10 - A method for preparing the blend (B) according to  claim 2 , which comprises mixing the polyarylene (P1) with the poly(aryl ether ketone) (P2), at a temperature above the melt temperature of the polyarylene (P1) and the melt temperature of the poly(aryl ether ketone) (P2). 
     
     
         11 - A shaped article or a part of a shaped article comprising the blend (B) according to  claim 2 . 
     
     
         12 - A blend (T) comprising:
 at least one polyarylene (P1 + ),   at least one poly(aryl ether ketone) (P2), and   at least one poly(aryl ether sulfone) (P3).   
     
     
         13 - The blend (T) according to  claim 12 , wherein the weight of the polyarylene (P1 + ), based on the total weight of the polyarylene (P1 + ) and the poly(aryl ether ketone) (P2), ranges from 15% to 90%. 
     
     
         14 - The blend (T) according to  claim 12 , wherein
 the poly(aryl ether sulfone) (P3) over polyarylene (P1 + ) weight ratio ranges from 0.05 to 1, and   the poly(aryl ether sulfone) (P3) over poly(aryl ether ketone) (P2) weight ratio ranges also from 0.05 to 1.   
     
     
         15 - The blend (T) according to  claim 12 , wherein
 the weight of the polyarylene (P1 + ), based on the total weight of the polyarylene (P1 + ) and the poly(aryl ether ketone) (P2), ranges from 30% to 70%,   the poly(aryl ether sulfone) (P3) over polyarylene (P1 + ) weight ratio ranges from 0.15 to 0.50, and   the poly(aryl ether sulfone) (P3) over poly(aryl ether ketone) (P2) weight ratio ranges from 0.15 to 0.50.   
     
     
         16 - The blend (T) according to  claim 12 , wherein the total weight of the polyarylene (P1 + ), the poly(aryl ether ketone) (P2) and the poly(aryl ether sulfone) (P3), based on the total weight of the blend (T), is above 95%. 
     
     
         17 - The blend (T) according to  claim 12 , wherein the polyarylene (P1 + ) is a polyarylene (P1) in a form other than fibers. 
     
     
         18 - The blend (T) according to  claim 12 , wherein the polyarylene (P1 + ) is a polyphenylene. 
     
     
         19 - The blend (T) according to  claim 12 , wherein the polyarylene (P1 + ) is a polyphenylene copolymer, essentially all the recurring units of which consist of a mix of phenylketone-substituted p-phenylene groups with unsubstituted m-phenylene groups in a mole ratio p-phenylene:m-phenylene of from 5:95 to 95.5. 
     
     
         20 . The blend (T) according to  claim 12 , wherein more than 50 wt. % of the recurring units of the poly(aryl ether ketone) (P2) are recurring units (R2) chosen from: 
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
       
     
     
         21 - The blend (T) according to  claim 12 , wherein the poly(aryl ether ketone) (P2) is a polyetheretherketone (PEEK) homopolymer, essentially all the recurring units of which being of formula 
       
         
           
           
               
               
           
         
       
     
     
         22 - The blend (T) according to  claim 12 , wherein the poly(aryl ether sulfone) (P3) is a poly(biphenyl ether sulfone). 
     
     
         23 - The blend (T) according to  claim 12 , wherein the poly(aryl ether sulfone) (P3) is a polyphenylsulfone homopolymer, essentially all the recurring units of which being of formula 
       
         
           
           
               
               
           
         
       
     
     
         24 - A method for preparing the blend (T) according to  claim 12 , which comprises mixing the polyarylene (P1 + ) with the poly(aryl ether ketone) (P2) and the poly(aryl ether sulfone) (P3), at a temperature above the melt temperature of the poly(aryl ether ketone) (P2) and the melt temperature of the poly(aryl ether sulfone) (P3). 
     
     
         25 - A shaped article or a part of a shaped article comprising the blend (T) according to  claim 12 . 
     
     
         26 . A polymer blend (T′) suitable for producing a layer of a flexible pipe for transporting hydrocarbons, said polymer blend (T′) comprising
 at least one polyarylene (P1′), and   a mix (M23′) selected from the group consisting of (i) mixes of at least one poly(aryl ether ketone) (P2′) and at least one poly(aryl ether sulfone) (P3′), and (ii) mixes of at least one poly(aryl ether ketone) (P2′), at least one poly(aryl ether sulfone) (P3′) and at least one fluoropolymer (P4′),   
       wherein:
 more than 50 wt. % of the recurring units of the polyarylene (P1′) are recurring units (R1′) of one or more formulae consisting of an optionally substituted arylene group, provided said optionally substituted arylene group is linked by each of its two ends to two other optionally substituted arylene groups via a direct C—C linkage, 
 the poly(aryl ether ketone) (P2′) is a polycondensate, of which more than 50 wt. % of the recurring units are recurring units (R2′) 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)-], the said one or more formulae being free of sulfone group [—S(═O) 2 -], and 
 the poly(aryl ether sulfone) (P3′) is a polymer other than the polyarylene (P1′), of which more than 50 wt. % of the recurring units are recurring units (R3′) of one or more formulae containing at least one arylene group, at least one and at least one ether group (—O—) and at least one sulfone group [—S(═O) 2 -]. 
 
     
     
         27 - A polymer composition (T″) suitable for producing a layer of a flexible pipe for transporting hydrocarbons, said polymer composition (T″) comprising:
 at least one polyarylene (P1″) selected from the group consisting of polyphenylenes,   at least one poly(aryl ether ketone) (P2″), said poly(aryl ether ketone) (P2″) being a polymer of which more than 50 wt. % of the recurring units are recurring units (R2″) 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)—], the said one or more formulae being free of sulfone group [—S(═O) 2 —], and   at least one poly(aryl ether sulfone) (P3″), said poly(aryl ether sulfone) (P3″) being a polymer of which more than 50 wt. % of the recurring units are recurring units (R3″) of one or more formulae containing at least one arylene group, at least one ether group (—O—) and at least one sulfone group [—S(═O) 2 -],   
       wherein:
 the weight of the poly(aryl ether ketone) (P2″), based on the total weight of the poly(aryl ether ketone) (P2″) and the poly(aryl ether sulfone) (P3″), is from 35% to 95%, and 
 the polymer composition (T″) is free of epoxy resin modified by at least one aromatic polyamine, or comprises the said epoxy resin modified by at least one polyamine in a weight amount of at most 10%, based on the total weight of the polymer composition (T″).