Patent ID: 6353084
Filing Date: 2002-03-05
Classification: C08G,Y02W

Abstract:
A biodegradable polyesteramide P1 having a molecular weight (Mn) of from 4000 to 40,000 g/mol, a viscosity number of from 30 to 350 g/ml (measured in o-dichlorobgnzene/phenol (50/50 ratio by weight) at a concentration of 0.5% by weight of polyesteramide P1 at 25Â° C.) and a melting point of from 50 to 220Â° C. P1 being obtained by reacting a mixture consisting essentially ofa1) a mixture consisting essentially of 35-95 mol % of adipic acid or ester-forming derivatives thereof or mixtures thereof, 5-65 mol % of terephthalic acid or ester-forming derivatives thereof or mixtures thereof, and 0-5 mol % of a compound containing sulfonate groups, where the total of the individual mole percentages is 100 mol %, and a2) a mixture consisting essentially of a21) 99.5-0.5 mol % of a dihydroxy compound selected from the group consisting of C2-C6-alkanediols and C5-C10-cycloalkanediols, a22) 0.5-99.5 mol % of an amino-C2-C12-alkanol or an amino-C5-C10-cycloalkanol, and a23) 0-50 mol % of a diamino-C1-C8-alkane, a24) 0-50 mol % of a 2,2â€²-bisoxazoline of the formula â€ƒwhere R1 is a single bond, a (CH2)q alkylene group with q=2, 3 or 4, or a phenylene group, where the total of the individual mole percentages is 100 mol %, where the molar ratio of a1) to a2) is from 0.4:1 to 1.5:1, with a3) from 0 to 5 mol %, based on component a1), of at least one compound D having three to six hydroxyl groups or carboxyl groups or mixtures thereof, or anhydrides or dianhydride of the carboxyl groups.