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Title
Mit Kohlenhydrat-Derivaten additivierte Gelatinezusammensetzungen
Date Issued
2008
Author(s)
Bohrisch, J.
Meyer, M.
Stachel, I.
Patent No
102008059857
Abstract
(A1) Die vorliegende Erfindung betrifft mit Kohlenhydrat-Derivaten additivierte Gelatinezusammensetzungen, wodurch reversible Eigenschaftsmodifizierungen der Gelatine erzielt werden koennen.
DE 102008059857 A1 UPAB: 20100714 NOVELTY - Composition (A) comprises: gelatin; and polysaccharide derivatives (I) and (II), as additives. DETAILED DESCRIPTION - Composition (A) comprises: gelatin; and polysaccharide derivatives of formulae (I) and (II), as additives. D = -CH2OR1, -CH2O-(CH2)n-COOR1, -CH2O-(CH2)n-COOR2, -CH2O-(CH2)m-OR1, -COOR1 or -COOR2; A = -O-(CH(R1))n-E, -O-C(O)-(CH2)n-CH3, -O-C(O)-(CH2)n-C(O)-(OCH2CH2)n-OR1 or OH (for the case that at least a part of the residue D is not -CH2OH); n = 1-24; E = -OR1, -N+(R1)2, -N+(R1)3/X-, -COOR2, -SO3R2 or 6-18C aryl-SO3R2; X- = negatively charged counter ion; R2 = H or Y+; Y+ = positively charged counter ion; R1 = H, 1-12C alkyl, 2-12C alkenyl, 2-12C alkynyl, 7-18C aralkyl, 6-18C aryl, 6-18C heteroaryl and/or -C(O)-(CH2)n-CH3; m = not defined; a/(a+b) = 0.1-1; B1 = -N(R1)-(CH(R1))n-E, -N-C(O)-(CH2)n-CH3, -N-C(O)-(CH2)n-C(O)-(OCH2CH2)n-OR1, -N+(R1)3/X- or a heterocyclic group of formula (a); c/(c+d+e) = 0.01-1; d/(c+d+e) = 0-0.4; and e/(c+d+e) = 0-0.99. Where in (I) and (II), underlying monomeric saccharide units in any order and alpha -1,4- or beta -1,4 can glycosidically linked to one another. USE - (A) is useful: in molded body, medical technology, packaging for industrial purposes, medical devices, and food and pharmaceuticals; as surface coatings, biocidal coatings, cell growth promoting material, a flat implant material in the form of nonwovens or films, an additive in adhesives for medical and technical purposes, an additive in food preparations, a matrix material for cell culture and tissue engineering, a coating for medicinal suture materials and textile fibers for clothing and technical purposes; for capsules, producing hemostatic sponges, and coating paper, foil, textiles and other support materials for medical and technical applications (all claimed). ADVANTAGE - (A) is biocompatible and has improved mechanical properties such as melting point, viscosity, gel strength and solubility.
Language
de
Patenprio
DE 102008059857 A: 20081201