US2007015900A1PendingUtilityA1

Aromatic amide polymer systems and methods for making the same

36
Individually held — no corporate assignee on recordPriority: Feb 27, 2003Filed: Sep 18, 2006Published: Jan 18, 2007
Est. expiryFeb 27, 2023(expired)· nominal 20-yr term from priority
Inventors:Steven Fowkes
C08G 69/32C08G 73/02C08G 73/06C08G 69/02C08G 69/08C08G 69/40C08G 69/42Y10T442/2811Y10T428/31504
36
PatentIndex Score
0
Cited by
0
References
0
Claims

Abstract

A method of making amide polymers with improved back-bone rigidity, stability and/or planarity through the promotion of intra-molecular interactions is disclosed. Amide polymers, in accordance with the embodiments of the invention, are formed using aromatic dicarboxylic acids and heterocyclic diamine precursors or reactive amino-acid heterocyclic precursors. The heterocyclic precursors used in the present invention have heterocyclic structures that include hetero-atoms in a position that is beta relative to one or more reactive amine groups. Preferably, the hetero-atoms are nitrogen atoms. In accordance with further embodiments, precursors include functional groups that promote inter-molecular interactions, intra-molecular interactions and/or enhance solubility of the amide polymers formed.

Claims

exact text as granted — not AI-modified
1 . A polymer system comprising amide linkages with hetero-atoms positioned beta relative to nitrogen atoms forming the amide linkages.  
   
   
       2 . The polymer system of  claim 1 , wherein the amide linkages link one or more of aromatic structures and heterocyclic structures.  
   
   
       3 . The polymer system of  claim 2 , wherein the hetero-atoms are nitrogen.  
   
   
       4 . The polymer system of  claim 2 , wherein the heterocyclic structures comprise an alcohol functional group that is positioned beta to at least a portion of the amide linkages.  
   
   
       5 . The polymer system of  claim 2 , wherein the aromatic structures comprise one or more function groups positioned beta relative to at least a portion of the amide linkages, the one or more functional group being selected from a group consisting of an alcohol functional group, a thiol functional group and an amine functional group.  
   
   
       6 . The polymer system of  claim 2 , wherein aromatic structures include bicyclic sub-structures.  
   
   
       7 . The polymer system of  claim 1 , further comprising a binder material.  
   
   
       8 . The polymer system of  claim 7 , wherein the binder material comprises one or more materials selected from a group consisting of epoxy, rubber, plastic, polyurethane and silicone.  
   
   
       9 . The polymer system of  claim 2 , wherein the amide linkages are positioned para between the aromatic structures and the heterocyclic structures.  
   
   
       10 . A polymer comprising amide linkages between aromatic structures and heterocyclic structures, wherein the heterocyclic structures comprise hetero-atoms positioned beta relative to a nitrogen of the amide linkages.  
   
   
       11 . The polymer of  claim 10 , further comprising alcohol groups positioned para to the amide linkages on at least one of the aromatic structures and heterocyclic structures.  
   
   
       12 . The polymer of  claim 10 , wherein hetero-atoms include nitrogen atoms.  
   
   
       13 . The polymer of  claim 12 , wherein the nitrogen atoms are positioned beta relative the nitrogen of the amide linkages.  
   
   
       14 . The polymer of  claim 10 , wherein the aromatic structures and the heterocyclic structures are linked in a para configuration between the amide linkages.  
   
   
       15 . The polymer of  claim 10 , further comprising hydroxyl groups.  
   
   
       16 . The polymer of  claim 15 , wherein the hydroxyl groups are positioned beta with respect to the amide linkages on at least one of the aromatic structures and the heterocyclic structures.  
   
   
       17 . A method for making a polymer system comprising: 
 a) reacting a carboxylic acid precursor and an amine precursor in a suitable solvent to form an aromatic polyamide, wherein the carboxylic acid precursor comprises an aromatic structure and two reactive carboxylic acid groups and the amine precursor comprises a heterocyclic structure and two reactive amine groups and wherein the heterocyclic structure comprises a hetero-atom in a beta position relative to one or more of the reactive amine groups; and    b) isolating the aromatic polyamide.    
   
   
       18 . The method of  claim 17 , wherein the hetero-atom is a nitrogen.  
   
   
       19 . The method of  claim 17 , wherein the aromatic carboxylic acid precursor comprises a functional group positioned beta to one or more the reactive carboxylic acid groups, wherein the one or more functional groups are selected from a group consisting of an alcohol functional group, a thiol functional group and an amine functional group.  
   
   
       20 . The method of  claim 17 , wherein the heterocyclic amine precursor comprises a functional group positioned beta to the one or more of the reactive amine groups, wherein the functional group is selected from a group consisting of an alcohol functional group, a thiol functional group and an amine functional group.  
   
   
       21 . The method of  claim 17 , wherein the two reactive carboxylic acid groups are positioned para to each other on the aromatic structure.  
   
   
       22 . The method of  claim 17 , wherein the reactive amine groups are positioned para relative to each other on the heterocyclic structure.  
   
   
       23 . The method of  claim 17 , further comprising incorporating the aromatic polyamide in a binder material.  
   
   
       24 . The method of  claim 23 , wherein the binder material is selected from a group consisting of epoxy, rubber, plastic, polyurethane and silicone.  
   
   
       25 . The method of  claim 17 , further comprising integrating the aromatic polyamide into a fabric material.  
   
   
       26 . A method of making an aromatic polyamide comprising: 
 a) combining a first precursor with a second precursor to form the aromatic polyamide, wherein the first precursor comprises two reactive carboxylic acid groups bonded to an aromatic structure and the second precursor comprises two reactive amine groups bonded to a heterocyclic structure; and    b) isolating the aromatic polyamide.    
   
   
       27 . The method of  claim 26 , further comprising combining a third precursor with the first precursor and the second precursor, wherein the third precursor comprises two reactive carboxylic acid groups bonded to an aromatic structure that is different from the aromatic structure of first precursor.  
   
   
       28 . The method of  claim 26 , further comprising combining a third precursor with the first precursor and the second precursor, wherein the third precursor comprises two reactive amine groups bonded to a heterocyclic structure that is different from the heterocyclic structure of the second precursor.  
   
   
       29 . The method of  claim 26 , wherein the heterocyclic structure of the second precursor comprises a nitrogen atom positioned beta to at least one of the reactive amine groups.  
   
   
       30 . The method of  claim 29 , wherein the heterocyclic structure of the second precursor comprises an alcohol functional group.  
   
   
       31 . The method of  claim 30 , wherein the alcohol functional group is positioned beta to at least one of the reactive amine groups.  
   
   
       32 . The method of  claim 26 , wherein the aromatic structure comprises an alcohol functional group.  
   
   
       33 . The method of  claim 32 , wherein the alcohol functional group is positioned beta to at least one of the reactive carboxylic acid groups.

Join the waitlist — get patent alerts

Track US2007015900A1 — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.