[EN] POLYHYDROXY-DIAMINES AS MULTI-FUNCTIONAL ADDITIVES FOR PAINTS, COATINGS AND EXPOXIES [FR] POLYHYDROXY-DIAMINES COMME ADDITIFS MULTIFONCTIONNELS POUR PEINTURES, REVÊTEMENTS ET COMPOSÉS ÉPOXY
POLYHYDROXY-DIAMINES AS MULTI-FUNCTIONAL ADDITIVES FOR PAINTS, COATINGS AND EXPOXIES
申请人:Dow Global Technologies LLC
公开号:EP2424833A1
公开(公告)日:2012-03-07
Biological Buffers with Wide Buffering Ranges
申请人:Daly Thomas
公开号:US20090264651A1
公开(公告)日:2009-10-22
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.