Patent ID: 8648168

Claim:
A biodegradable polyesteretheramide comprising: from 5 to 80 mol % with respect to the sum of moles of compound 1+2 of an organic compound 1 with at least one aromatic or furan ring and two or more acid groups, their esters or anhydrides, or mixtures thereof, including under this designation compounds obtained either from petroleum or from natural sources; from 20 to 95 mol % with respect to the sum of moles of compound 1+2 of an aliphatic or cycloaliphatic organic compound 2 with two or more acid groups, their esters or anhydrides, or mixtures thereof, including under this designation compounds obtained either from petroleum or from natural sources; from 20 to 300 mol % with respect to the sum of moles of compound 1+2 of an aliphatic, cycloaliphatic or aromatic organic compound 3 with at least one alcohol group, including under this designation polyols, amino alcohol, carboxyl alcohol and furans, being able to contain in its structure ether groups or mixtures of all of the mentioned compounds, including under this designation compounds obtained either from petroleum or from natural sources; from 0 to 2 mol % with respect to the sum of compounds 1+2, of an organic compound 4 containing sulphonic groups, including under this designation compounds obtained either from petroleum or from natural sources; from 0.02 to 5 mol % with respect to the sum of moles of compound 1+2 of a compound 5 with at least 3 groups capable of reacting with one or several types of the active groups present in the reaction mixture, that is, compounds which, while containing ether groups in their structure, have at least three active groups capable of reacting in the reaction mixture to form amide groups, including under this designation compounds obtained either from petroleum or from natural sources; from 0 to 10% by weight with respect to the weight of the polyesteretheramide obtained from the compound 1+2+3+4+5 of a compound 6 with at least 2 groups capable of reacting with the polyesteretheramide, including under this designation compounds obtained either from petroleum or from natural sources; from 0 to 95 mol % with respect to the sum of moles of compound 1+2 of an aliphatic, cycloaliphatic or aromatic organic compound 7 with groups capable of forming amide bonds or esters in the reaction mixture, including under this designation compounds obtained either from petroleum or from natural sources; and from 0 to 5% by weight with respect to the polyesteretheramide, of a compound 8 acting as a catalyst.