IP Library › Patent Application 14447121
Patent Application
App. No. 14/447,121

Carbondisulfide Derived Zwitterions

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Quick Facts
Patent No.
US None
App. No.
14/447,121
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 will extend the buffering range, derivatives that result 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 (24)

1 . A dispersant of the following structure:

where A and D are independently chosen from —CH 3 , —CH 2 CH 3 , —CH 2 CH 2 CH 3 , —CH 2 OH.

2 . The dispersant of claim 1 where A=D=—CH 3 .

3 . The sodium salt of the dispersant of claim 1 where A=D=—CH 3 .

4 . The potassium salt of the dispersant of claim 1 where A=D=—CH 3 .

5 . The dicocomethyl amine (Akzo Armeen M2C or equivelent) salt of the dispersant of claim 1 where A=D=—CH 3 .

6 . The dispersant of claim 1 where A=D−CH 2 OH.

7 . The sodium salt of the dispersant of claim 1 where A=D=—CH 2 OH.

8 . The potassium salt of the dispersant of claim 1 where A=D=—CH 2 OH.

9 . The dicocomethyl amine (Akzo Armeen M2C or equivelent) salt of the dispersant of claim 1 where A=D=—CH 2 OH.

10 . A dispersant of the following structure:

where A, D and E are independently chosen from —H, —CH 3 , —CH 2 CH 3 , —CH 2 CH 2 CH 3 , —CH 2 OH, where R is alkyl, alkenyl, alkynal, branched or linear, saturated or unsaturated.

11 . The dispersant of claim 10 where A=—CH 2 OH, D=E=—CH 3 .

12 . The sodium salt of the dispersant of claim 10 where A=—CH 2 OH, D=E=—CH 3 .

13 . The potassium salt of the dispersant of claim 10 where A=—CH 2 OH, D=E=—CH 3 .

14 . The dispersant of claim 10 where A=D=E=—CH 2 OH.

15 . The sodium salt of the dispersant of claim 10 where A=D=E=—CH 2 OH.

16 . The potassium salt of the dispersant of claim 10 where A=D=E=—CH 2 OH.

17 - 18 . (canceled)

19 . The dispersant of claim 1 where A=—CH 2 CH 3 , and D=—CH 2 OH.

20 . A dispersant and its salts of the following structure:

where A is chosen from —H, —CH 3 , —CH 2 CH 3 , —CH 2 CH 2 CH 3 , —CH 2 OH, and D is chosen from —CH 3 , —CH 2 CH 3 , —CH 2 CH 2 CH 3 , —CH 2 OH.

21 . The dispersant of claim 20 where A=—H and D=—CH 2 CH 3 .

22 . The sodium salt of the dispersant of claim 20 where A=—H and D=—CH 2 CH 3 .