Patent ID: 9181404
Filing Date: 2015-11-10
Classification: C08H,C08L

Abstract:
1. Material obtainable by a process of derivatization with polymers of protein hydrolysates or gelatins by means of: a) reactive blending of protein hydrolysates or gelatins, originating from hides or hide processing residues of formula (3): wherein Ip is the amino acid, peptide or polypeptide residue of the protein hydrolysate or gelatin, with polymers able to interact with amine and/or carboxyl and/or peptide groups present in the hydrolysates or gelatins, to produce structures compatible with and similar to natural leather in order to obtain materials that react with the substances commonly used in tanning and finishing; b) chemical reaction in liquid phase of protein hydrolysates or gelatins originating from hide manufacturing residues or hides of formula (3): wherein Ip is the amino acid, peptide or polypeptide residue of the protein hydrolysate or gelatin, with functionalized polymers and oligomers able to react with amine and/or peptide groups present in the hydrolysates or gelatins to produce complex structures, which may include extensive cross-linking; wherein the functionalized polymers have formula (4): to obtain a material of formula (1): wherein x is an integer; R is Ip, is as above defined: R′ is Z is —H or —R′—(OCH 2 CH 2 )x-O—R, being R, R′ and x as above defined; or, the functionalized polymers are functional copolymers with an ethylene base having amine, carboxyl, hydroxyl, amide, ester or heterocyclic groups with a degree of substitution falling into the interval 1-100%.