Method for the industrial production of 2-halo-4,6-dialkoxy-1,3,5-triazines and their use in the presence of amines
AssigneeCrossing Srl
InventorValentina Beghetto
Life of this patent
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Abstract
A method for stabilization of collagen matrices and of condensation of natural and synthetic polymers that uses 2-halo-4,6-dialkoxy-1,3,5-triazines in the presence of one or more amines as activating agents for reactions of crosslinking, condensation, grafting, and curing of collagen matrices, cellulose, modified celluloses, polysaccharides, acid unsaturated polymers, and chiral and non-chiral amines, etc. Forming an integral part of the present invention is also the method for production on an industrial scale of 2-halo-4,6-dialkoxy-1,3,5-triazines.
Claims12
A method for stabilization of collagen matrices and for condensation of natural and synthetic polymers, comprising performing a single-step reaction with a pair of reagents,
- wherein a first reagent (Reagent 1) is a composition comprising:
- a) at least one or more 2-halo-4,6-dialkoxy-1,3,5-triazines of formula III:
- wherein:
- R1 and R2 are independently —CH3, —CH2CH3, —CH(CH3)2, —(CH2)2CH3, or —(CH2)3CH3;
- and X is Cl− or Br−;
- b) a buffer selected from the group consisting of MES, ACES, BES, POPSO, TRIS, HEPPSO, TAPS and Tris-NaCitrate;
- c) an inorganic salt of formula X+Y−, wherein X+is selected from the group consisting of Na+, K+, and Ag+, and Y− is selected from the group consisting of ClO4−, BF4−, and Cl−;
- and
- d) a solvent selected from the group consisting of aliphatic ether, alcohol, water, acetone and THF, and
- a second reagent (Reagent 2) is a composition comprising:
- a) a tertiary amine selected from the group consisting of TMA(trimethylamine), TEA (triethylamine), DEMA(diethylmethylamine), NMM(N-methylmorpholine), NEM(N-ethylmorpholine), MPD(methylpyrrolidine), and MP(methylpiperidine), and/or a quaternary salt thereof;
- b) a buffer selected from the group consisting of BES, MOPS, TRIS, POPSO, TAPS and Tris-NaCitrate;
- and
- c) a solvent selected from the group consisting of aliphatic ether, alcohol, water, acetone and THF.
Dependencies are inferred from the claim text.