US2014128566A1PendingUtilityA1

Polymeric materials

53
Assignee: VICTREX MFG LTDPriority: Jun 14, 2006Filed: Dec 18, 2013Published: May 8, 2014
Est. expiryJun 14, 2026(expired)· nominal 20-yr term from priority
Inventors:Simon GrantJohn Russell GrasmederMichael John PercyBrian Wilson
B29C 51/002C08L 71/00C08G 65/4012D01F 6/78B29C 55/005C08L 71/10C08G 65/005C08G 61/121C07C 41/24
53
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Claims

Abstract

A polymeric material includes phenyl moieties, ketone moieties and ether moieties in the polymeric backbone of said polymeric material, wherein the difference between the nucleation temperature (Tn) and the glass transition temperature (Tg) of said polymeric material is greater than 23° C.

Claims

exact text as granted — not AI-modified
1 . A method of producing a component or an article, the method comprising:
 (A) selecting a polymeric material having a repeat unit of formula:   
       
         
           
           
               
               
           
         
         where p represents 0 or 1, wherein the difference between the nucleation temperature Tn and the glass transition temperature Tg of said polymeric material is greater than 23° C., said polymeric material having a melt viscosity (MV) measured in kNsm −2  and a Melt Flow Index (MFI),  wherein:    
         (a) when p represents 1, the actual log   MFI of said polymeric material is greater than the Expected Value for the log   MFI calculated using the formula: 
         Expected Value (EV)=−3.2218x+2.3327 wherein x represents the MV in kNsm −2  of said polymeric material; or 
         (b) when p represents 0, the actual log10 MFI of said polymeric material is greater than the Expected Value for the log10 MFI calculated using the formula: 
         Expected Value (EV)=−2.539y+2.4299 wherein y represents the MV in kNsm −2  of said polymeric material; and 
         (B) drawing and/or thermoforming said polymeric material in order to define said component or article. 
       
     
     
         2 . A method as claimed in  claim 1 , wherein drawing and/or thermoforming is carried out at a temperature of less than the Tn of the polymeric material. 
     
     
         3 . A method according to  claim 1 , wherein said component is selected from a fibre, tube or film. 
     
     
         4 . A method according to  claim 1 , wherein the actual log 10  MFI of said polymeric material where p is 1 is greater than the Expected Value for the log 10  MFI calculated using the formula:
   Expected Value (EV)= m   1   x+ 2.33   wherein x represents the MV in kNsm −2  of said polymeric material and m 1  is greater than −3.00.   
     
     
         5 . A method according to  claim 4 , wherein m 1  is greater than −2.45. 
     
     
         6 . A method according to  claim 1 , wherein p represents 1 and said polymeric material consists essentially of said repeat unit. 
     
     
         7 . A method according to  claim 1 , wherein the difference between Tn and Tg is at least 26° C. and is less than 35° C. and the Tg of the polymeric material is at least 140° C. 
     
     
         8 . A method according to  claim 1 , wherein the ratio of the Tn to the Tg of said polymeric material is greater than 1.16 and said polymeric material has a melt viscosity (MV) in the range 0.08 to 0.50 kNsm −2 . 
     
     
         9 . A method according to  claim 1 , wherein the difference between Tn and Tg is at least 25° C., the Tg of the material is at least 140° C. and is less than 145° C. 
     
     
         10 . A method according to  claim 1 , wherein said component is selected from a fibre, tube or film, wherein the actual log 10  MFI of said polymeric material where p is 1 is greater than the Expected Value for the log 10  MFI calculated using the formula:
   Expected Value (EV)= m   1   x+ 2.33   wherein x represents the MV in kNsm −2  of said polymeric material and m 1  is greater than −2.45, wherein said polymeric material consists essentially of said repeat unit, wherein the difference between Tn and Tg is at least 26° C. and is less than 35° C. and the Tg of the polymeric material is at least 140° C., wherein the ratio of the Tn to the Tg of said polymeric material is greater than 1.16 and said polymeric material has a melt viscosity (MV) in the range 0.08 to 0.50 kNsm −2 .   
     
     
         11 . A thermoformed or drawn component or article, said component or article comprising a polymeric material having a repeat unit of formula: 
       
         
           
           
               
               
           
         
         where p represents 0 or 1, wherein the difference between the nucleation temperature Tn and the glass transition temperature Tg of said polymeric material is greater than 23° C., said polymeric material having a melt viscosity (MV) measured in kNsm −2  and a Melt Flow Index (MFI), wherein: 
         (a) when p represents 1, the actual log 10  MFI of said polymeric material is greater than the Expected Value for the log 10  MFI calculated using the formula: 
         Expected Value (EV)=−3.2218x +2.3327 wherein x represents the MV in kNsm −2  of said polymeric material; or 
         (b) when p represents 0, the actual log o  MFI of said polymeric material is greater than the Expected Value for the log o  MFI calculated using the formula: 
         Expected Value (EV)=−2.539y+2.4299 wherein y represents the MV in kNsm −2  of said polymeric material. 
       
     
     
         12 . A thermoformed or drawn component or article according to  claim 11 , wherein said component is selected from a fibre, tube or film. 
     
     
         13 . A thermoformed or drawn component or article, according to  claim 11 , wherein the actual log 10  MFI of said polymeric material where p is 1 is greater than the
 Expected Value for the log 10  MFI calculated using the formula:
   Expected Value (EV)= m   1   x+ 2.33 
   wherein x represents the MV in kNsm −2  of said polymeric material and m 1  is greater than −3.00.   
     
     
         14 . A thermoformed or drawn component or article according to  claim 13 , wherein m 1  is greater than −2.45. 
     
     
         15 . A thermoformed or drawn component or article according to  claim 11 , wherein p represents 1 and said polymeric material consists essentially of said repeat unit. 
     
     
         16 . A thermoformed or drawn component or article according to  claim 11 , wherein the difference between Tn and Tg is at least 26° C. and is less than 35° C. and the Tg of the polymeric material is at least 140° C. 
     
     
         17 . A thermoformed or drawn component or article according to  claim 11 , wherein the ratio of the Tn to the Tg of said polymeric material is greater than 1.16 and said polymeric material has a melt viscosity (MV) in the range 0.08 to 0.50 kNsm −2 . 
     
     
         18 . A thermoformed or drawn component or article according to  claim 11 , wherein the difference between Tn and Tg is at least 25° C. and the Tg of the material is at least 140° C. and is less than 145° C.

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