Back to results
US 10,975,027 B2Granted
Carbondisulfide derived zwitterions
OwnerThomas Dalyinventor
Life of this patent
Estimating the term…
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.
Claims17
The mining collector and its relevant salts of the following structure:
- where A and E are independently chosen from —CH2CH2— or —CH2CH2CH2—, n is a positive integer, R1 is chosen from —H or —CS2, and R2 is alkyl, saturated, unsaturated, linear or branched, cyclic or acyclic of 1 to 22 carbons, or an alkyl, saturated, unsaturated, linear or branched, cyclic or acyclic of 1 to 22 carbons amide.
Dependencies are inferred from the claim text.