US2019291045A1PendingUtilityA1

1-Amino-2-Methyl-2-Propanol Derivatives

66
Individually held — no corporate assignee on recordPriority: May 17, 2017Filed: Jun 2, 2019Published: Sep 26, 2019
Est. expiryMay 17, 2037(~10.8 yrs left)· nominal 20-yr term from priority
Inventors:Thomas Daly
C07C 229/12C07C 215/08C07C 229/22C07C 215/10C07C 309/14C07F 9/3817C07C 333/04B01D 2252/20405C07C 215/06B01D 53/1493C07C 329/14B01D 2252/30C07F 9/48C07C 229/24
66
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Claims

Abstract

Amines and amine derivatives that improve the buffering range, and/or reduce the chelation and other negative interactions of the buffer and the system to be buffered. The reaction of amines or polyamines with various molecules to form polyamines with differing pKa's extend the buffering range resulting in polyamines that have the same pKa yields a greater buffering capacity. Derivatives that result in zwitterionic buffers improve yield by allowing a greater range of stability.

Claims

exact text as granted — not AI-modified
I claim: 
     
         1 . The gas scrubbing amine of the following structure: 
       
         
           
           
               
               
           
         
         Where G is chosen from —H, —CH 3 , —OH. 
       
     
     
         2 . The gas scrubbing amine of  claim 1  where G=—CH 3 . 
     
     
         3 . The gas scrubbing amine of  claim 1  where G=—H. 
     
     
         4 . The pigment dispersant and its salts of the following structure: 
       
         
           
           
               
               
           
         
         Where x=0 or 1 and Where G is chosen from —H, —CH3, —CH2CH3, —OH. J is chosen from alkyl, alkenyl, alkynyl, branched or linear, —H, —(CH 2 CH 2 O) n —(CH2CH(CH3)O) m H, —(CH2C(CH3) 2 O) q H. n, m and q are integers greater than zero. 
       
     
     
         5 . The pigment dispersant and its salts of  claim 4  where x=1, G=—CH 3  and J=—H. 
     
     
         6 . The pigment dispersant and its salts of  claim 4  where x=1, G=CH and J=—H. 
     
     
         7 . The pigment dispersant and its salts of  claim 4  where x=0 and J=—H. 
     
     
         8 . The pigment dispersant and its salts of  claim 4  where x=1, G=—CH 3  and J=—CH 3 . 
     
     
         9 . The pigment dispersant and its salts of  claim 4  where x=1, G=—H and J=—CH 3 . 
     
     
         10 . The pigment dispersant and its salts of  claim 4  where x=1, G=—CH 3  and J=—(CH 2 CH 2 O) n —(CH2CH(CH3)O) m H, —(CH2C(CH3) 2 O) q H. n, m and q are integers greater than zero. 
     
     
         11 . The pigment dispersant and its salts of  claim 4  where x=1, G=—H and J=—(CH 2 CH 2 O) n —(CH2CH(CH3)O) m H, —(CH2C(CH3) 2 O) q H. n, m and q are integers greater than zero. 
     
     
         12 . The pigment dispersant and its salts of  claim 4  where x=0, and J=—(CH 2 CH 2 O) n —(CH2CH(CH3)O) m H, —(CH2C(CH3) 2 O) q H. n, m and q are integers greater than zero. 
     
     
         13 . The pigment dispersant and its salts of the following structure: 
       
         
           
           
               
               
           
         
         Where G is chosen from —H, —CH3, —CH2CH3, —OH. J is chosen from alkyl, alkenyl, alkynyl, branched or linear, —H, —(CH2CH2O)nH, —(CH2CH2CH20)nH, —(CH2CH(CH3)O)nH, —(CH2C(CH3)2O)nH. m is 1 or 2, n is an integer greater than zero. 
       
     
     
         14 . The pigment dispersant and its salts of  claim 13  wherein, G=—H. 
     
     
         15 . The pigment dispersant and its salts of  claim 13  wherein, G=—CH3. 
     
     
         16 . The pigment dispersant and its salts of  claim 13  wherein, G=—CH2CH3. 
     
     
         17 . The pigment dispersant and its salts of  claim 13  wherein, G=—OH. 
     
     
         18 . The pigment dispersant and its salts of  claim 13  wherein, J=—H. 
     
     
         19 . The pigment dispersant and its salts of  claim 13  wherein, G=—H and J=—H. 
     
     
         20 . The pigment dispersant and its salts of  claim 13  wherein, G=—CH3 and J=—H.

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