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1. (WO2009137765) BIOLOGICAL BUFFERS WITH WIDE BUFFERING RANGES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2009/137765    International Application No.:    PCT/US2009/043291
Publication Date: 12.11.2009 International Filing Date: 08.05.2009
IPC:
C07C 209/00 (2006.01), C07C 291/04 (2006.01), C07C 229/00 (2006.01)
Applicants: DALY, Thomas [US/US]; (US)
Inventors: DALY, Thomas; (US)
Agent: KRAFT, Clifford, H.; (US)
Priority Data:
12/151,899 09.05.2008 US
Title (EN) BIOLOGICAL BUFFERS WITH WIDE BUFFERING RANGES
(FR) TAMPONS BIOLOGIQUES À LARGES SPECTRES D’ACTION
Abstract: front page image
(EN)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 zwittehonic buffers improve yield by allowing a greater range of stability.
(FR)La présente invention concerne des amines et des dérivés d’amines qui améliorent le spectre d’action, et/ou qui réduisent la chélation et autres interactions négatives du tampon et du système à tamponner. La réaction des amines ou des polyamines avec diverses molécules pour former des polyamines ayant différents pKa étendra le spectre d’action ; les dérivés qui aboutissent à des polyamines qui ont le même pKa donnent un pouvoir tampon supérieur. Les dérivés qui donnent des tampons zwitterioniques améliorent le rendement en permettant une stabilité plus large.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)