biodegradable polymers, processes for their preparation, and their use for the obtention of biodegradable moldings.

Amides polyetheresters Q1 biodegradable, with a molecular weight (M {SUB, N}) of between 6,000 and 80,000 g / mol, a viscosity index between 30 and 450 g / L (WEIGHTED O 0) at a concentration of 0.5 wt% of polyetherester amide Q1 at a temperature of 25 (degrees) C) and a melting point between 50 and 200 (DEGREES) C, obtained by reacting a mixture ESSENTIALLY COMPOUND (A1) 95 A 99.9% by weight polyetheresters amide P1 with a molecular weight (M {SUB, N}) 80,000 range from 5000 g / mol, a viscosity index between 30 and 450 G / ML (OR WEIGHTED aTION 0.5 wt% of polyetherester amide P1 at a temperature of 25 (degrees) C) and a melting point between 50 and 200 (DEGREES) C, obtained by reacting a mixture ESSENTIALLY COMPOUND (B1) A MIXTURE essentially composed of 20 to 95 mol% adipic acid or ester derivatives or mixtures thereof, 5 to 80% mOLAR ACID O terephthalic acid or ester derivatives or mixtures thereof, and 0 to 5 mol% of a compound containing sulfonate groups, SO THE SUM OF PERCENTAGES MOLARES is 100 mole%, (B2) a mixture of compounds dihydroxide, FORMED ESSENTIALLY (B21) 15 A 99.3 mol% of a dihydroxy compound selected from the group consisting of alkanediols C SUB {2} {SUB OALCANODIOLES C, 5} A FUNCTION ETHER dihydroxy compound according to formula (I) HO SMOS, (B23) from 0.5 to 80 mol% of a C aminoalkanol SUB {2} C {SUB, 12} OR {SUB AMINOCICLOALCANOL C, 5} 0 to 50 mol% of a diaminoalkane C {SUB 1} (B25) from 0 to 50% mOLAR A 2,2' 'GENERAL (II), wherein R SUP {1} ENCLACE IS A SIMPLE, an alkylene group (CH SUB {2}) {SUB, Q}, Q = 2, 3 or 4 or a phenylene group, sO THE SUM OF PERCENTAGES MOLARES is 100% mOLAR AND CHOOSING THE mOLAR RATIO (B1) A (B2) in the range of 0.4: 1 to 1.5: 1, (A2) 0.1 to 5% by weight of a divinyl ether C1 and (a3) ​​0 to 5 mol%, REFERID Or component (B1) from the manufacture of P1, of compound D and other biodegradable polymers and molding compositions TERMOPLASTICAS, method of manufacture, use for the manufacture of molded articles biodegradable ASI as adhesives, molded articles biodegradable, MIXING WITH FOAM AND DERIVED FROM starch polymers or molding compositions of the invention.