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US 11,542,450 B2Granted
Biological buffers with wide buffering ranges
AssigneeTpat IP LLC
InventorThomas Daly
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.
Claims13
The fuel additive or mining collector of the following structure:
- where A and D are independently chosen from —CH3, —CH2CH3, —CH2CH2CH3, —CH2OH, —CH2COOH, —CH2CH2COOH, G is chosen from —O(CH2CH2O)n—(CH2CH(CH3)O)m—(CH2CH(CH2CH3)O)q—(CH2CH2CH2NH)rH;
- E is chosen from alkyl, saturated or unsaturated, branched or linear, cyclic or acyclic with from 6-22 carbons, J and J′ are independently chosen from —H, —(CH2CH2O)n′—(CH2CH(CH3)O)m′—(CH2CH(CH2CH3)O)q′—CH2CH2CH2NH)r′H;
- wherein, n, n′, m, m′, q, q′, r and r′ are non-negative integers;
- wherein n, m, q and r are not all zero.
1 more element
The fuel additive or mining collector of the following Structure:
- where A and D are independently chosen from —CH3, —CH2CH3, —CH2CH2CH3, —CH2OH, —CH2COOH, —CH2CH2COOH, —CH2CH(CH3)COOH, —CH2PO(OH)2, —(CH2CH2O)n—(CH2CH(CH3)O)m—(CH2CH(CH2CH3)O)qH, —(CH2CH2CH2NH)n′H, —CH2O(CH2CH2CH2NH)n″H;
- G is chosen from —O(CH2CH2O)n′″—(CH2CH(CH3)O)m′—(CH2CH(CH2CH3)O)q′H, —O(CH2CH2CH2NH)n″″H;
- E is chosen from alkyl, saturated or unsaturated, branched or linear, cyclic or acyclic with from 6-22 carbons;
- wherein n, n, n′, n″, n′″, n″″, m, m′, q and q′ are non-negative integers, wherein n, m, and q are not all zero, wherein n′″, m′, and q′ are not all zero, and wherein neither n′ nor n″″ is zero.
1 more element
Dependencies are inferred from the claim text.