Abstract: The invention relates to a continuous process for producing an aliphatic polyester constructed from aliphatic dicarboxylic acids and aliphatic diols comprising the steps of a) esterification, b) polycondensation and optionally c) chain extension, characterized in that during step b) in which the polycondenser functions as a degassing apparatus (B) and/or b?) after the polycondensation in an additional degassing apparatus (B?) the crude polyester is degassed at a pressure of 0.01 to 5 mbar in the presence of 1% to 7% by weight, based on the total weight of the crude polyester of water, introduced into the gas space of the degassing apparatus B and/or B? as an entraining agent.

Abstract: The present invention relates to an injection molded article comprising: i) 27% to 87% by weight based on the total weight of the components i to iv of a polyester constructed from aliphatic dicarboxylic acids and aliphatic diols; ii) 3% to 15% by weight based on the total weight of the components i to iv of an aliphatic-aromatic polyester comprising: ii-a) 30 to 70 mol % based on the components ii-a to ii-b of a C6-C18-dicarboxylic acid; ii-b) 30 to 70 mol % based on the components ii-a to ii-b of terephthalic acid; ii-c) 99 to 100 mol % based on the components ii-a to ii-b of 1,3-propanediol or 1,4-butanediol; ii-d) 0% to 1% by weight based on the components ii-a to ii-c of a chain extender and/or branching agent; iii) 0% to 35% by weight based on the total weight of the components i to iv of polylactic acid; iv) 10% to 35% by weight based on the total weight of the components i to iv of at least one surface-modified silicate selected from the group consisting of: kaolin, muscovite, montmorillonite, tal

Abstract: The present invention relates to a nonwoven fabric comprising continuous spunbonded bicomponent fibers which consist of: 0 to 95% by weight of an aromatic polyester (A) in a core; to 50% by weight of a polyester blend (B) containing a) 65 to 95% of an aromatic polyester (BA) and b) 5 to 35% by weight of an aliphatic-aromatic polyester (BB) with a glass temperature below 0° C. in a sheath surrounding the core; and 0 to 5% by weight of at least one additive (C); wherein the % by weight are based in each case on the total weight of the components (A) and (B) and optionally (C); and wherein the aromatic polyesters (A) and (BA) are selected from the group consisting of poly(ethylene terephthalate) and poly(butylene terephthalate).

Abstract: The present invention relates to a continuous process for purifying a chain-extended aliphatic polyester constructed from aliphatic dicarboxylic acids and aliphatic diols in a degassing apparatus, wherein the crude polyester is degassed for 3 to 30 minutes at a pressure of 0.01 to 5 mbar in the presence of 1% to 7% by weight, based on the total weight of the crude polyester, of an entraining agent.

Abstract: The present invention relates to an injection molded article comprising: i) 30% to 90% by weight based on the total weight of the components i to iii of a biodegradable polyester comprising: i-a) 90 to 100 mol % based on the components a to b of succinic acid; i-b) 0 to 10 mol % based on the components a to b of one or more C6-C20 dicarboxylic acids; i-c) 99 to 100 mol % based on the components a to b of 1,3-propanediol or 1,4-butanediol; i-d) 0% to 1% by weight based on the components a to c of a chain extender and/or branching agent; ii) 0% to 35% by weight based on the total weight of the components i to iii of polylactic acid; iii) 10% to 35% by weight based on the total weight of the components i to iii of at least one methacryloylsilane- or vinylsilane-modified silicate selected from the group consisting of: kaolin, muscovite, montmorillonite, talc and wollastonite.

Abstract: The invention relates to a biodegradable three-layer polyester film of 8 to 20 ?m in thickness having a layer construction NB/C or preferably A/B/A, wherein the two outer layers (A) or (A, C) are composed of: Ai) 55% to 99.99% by weight based on the polyester mixture of the outer layers of a polyester selected from the group consisting of: polybutylene sebacate-co-terephthalate, polybutylene sebacate-co-adipate-co-terephthalate, polybutylene sebacate-co-succinate-co-terephthalate or mixtures thereof or a mixture of polybutylene sebacate-co-terephthalate and polybutylene adipate-co-terephthalate; Aii) 0.01% to 5% by weight based on the polyester mixture of the outer layers of at least one additive selected from the group consisting of: a wax, a plasticizer, a nucleating agent, antifogging agents, fillers and an antiblocking agent; and Aiii) 0% to 44.

Abstract: The invention relates to a continuous process for producing an aliphatic polyester constructed from aliphatic dicarboxylic acids and aliphatic diols comprising the steps of a) esterification, b) polycondensation and optionally c) chain extension, characterized in that during step b) in which the polycondenser functions as a degassing apparatus (B) and/or b?) after the polycondensation in an additional degassing apparatus (B?) the crude polyester is degassed at a pressure of 0.01 to 5 mbar in the presence of 1% to 7% by weight, based on the total weight of the crude polyester of water, introduced into the gas space of the degassing apparatus B and/or B? as an entraining agent.

Abstract: The present invention relates to a continuous process for purifying a chain-extended aliphatic polyester constructed from aliphatic dicarboxylic acids and aliphatic diols in a degassing apparatus, wherein the crude polyester is degassed for 3 to 30 minutes at a pressure of 0.01 to 5 mbar in the presence of 1% to 7% by weight, based on the total weight of the crude polyester, of an entraining agent.

Abstract: The present invention relates to an injection molded article comprising: i) 27% to 87% by weight based on the total weight of the components i to iv of a polyester constructed from aliphatic dicarboxylic acids and aliphatic diols; ii) 3% to 15% by weight based on the total weight of the components i to iv of an aliphatic-aromatic polyester comprising: ii-a) 30 to 70 mol % based on the components ii-a to ii-b of a C6-C18-dicarboxylic acid; ii-b) 30 to 70 mol % based on the components ii-a to ii-b of terephthalic acid; ii-c) 99 to 100 mol % based on the components ii-a to ii-b of 1,3-propanediol or 1,4-butanediol; ii-d) 0% to 1% by weight based on the components ii-a to ii-c of a chain extender and/or branching agent; iii) 0% to 35% by weight based on the total weight of the components i to iv of polylactic acid; iv) 10% to 35% by weight based on the total weight of the components i to iv of at least one surface-modified silicate selected from the group consisting of: kaolin, muscovite, montmorillonite, tal

Abstract: The invention relates to a biodegradable polyester mixture comprising: i) 71 to 91 wt %, based on the total weight of components i and ii, of a polyester I constructed from: a-1) 40 to 70 wt %, based on the total weight of components a and b, of an aliphatic C9-C16 dicarboxylic acid or of a C9-C16 dicarboxylic acid derivative; b-1) 30 to 60 wt %, based on the total weight of components a and b, of terephthalic acid or of a terephthalic acid derivative; c-1) 98 to 100 wt %, based on the total weight of components a and b, of a C3-C6 diol; d-1) 0 to 2 wt %, based on the total weight of components a and b, of an at least trihydric alcohol; e-1) 0 to 2 wt %, based on the total weight of components a to e, of a chain extender, and ii) 9 to 29 wt %, based on the total weight of components i and ii, of a polyester II constructed from: a-2) 40 to 70 wt %, based on the total weight of components a and b, of an aliphatic C4-C6 dicarboxylic acid or of a C4-C6 dicarboxylic acid derivative; b-2) 30 to 60 wt %, based

Abstract: The present invention relates to an injection-molded item with HDT-B temperature of from 80 to 105° C. in accordance with DIN EN ISO 75-2:2004-09, comprising: i) from 47 to 59% by weight, based on the total weight of components i to iv, of a biodegradable aliphatic polyester; ii) from 3 to 14% by weight, based on the total weight of components i to iv, of an aliphatic-aromatic polyester; iii) from 15 to 24% by weight, based on the total weight of components i to iv, of polylactic acid; iv) from 10 to 35% by weight, based on the total weight of components i to iv, of at least one mineral filler; where the following applies to the compounded material comprising components i to iv: the ratio of component i to component iii in the compounded material is from 2.2 to 3.2, and the MVR of the compounded material is from 8 to 50 cm3/10 min in accordance with DIN EN 1133-1 of Mar. 1, 2012 (190° C., 2.16 kg).

Abstract: The present invention relates to an item produced by thermoforming, comprising: i) from 45 to 59% by weight, based on the total weight of components i to iv, of a biodegradable polyester comprising: i-a) from 90 to 100 mol %, based on components i-a to i-b, of succinic acid; i-b) from 0 to 10 mol %, based on components i-a to i-b, of one or more C6-C20 dicarboxylic acids; i-c) from 98 to 102 mol %, based on components i-a to i-b, of 1,3-propanediol or 1,4-butanediol; i-d) from 0.05 to 1% by weight, based on components i-a to i-c, of a chain extender or branching agent; ii) from 5 to 14% by weight, based on the total weight of components i to iv, of an aliphatic-aromatic polyester comprising: ii-a) from 30 to 70 mol %, based on components ii-a to ii-b, of a C6-C18-dicarboxylic acid; ii-b) from 30 to 70 mol %, based on components ii-a to ii-b, of terephthalic acid; ii-c) from 98 to 100 mol %, based on components ii-a to ii-b, of 1,3-propanediol or 1,4-butanediol; ii-d) from 0.

Abstract: The present invention relates to a process for coating paper, wherein the coating material used is a biodegradable, aliphatic-aromatic polyester having a melt volume rate (MVR) according to EN ISO 1133 (190° C., 2.16 kg weight) of from 3 to 50 cm3/10 min.

Abstract: The present invention relates to an item produced by thermoforming, comprising: i) from 45 to 59% by weight, based on the total weight of components i to iv, of a biodegradable polyester comprising: i-a) from 90 to 100 mol %, based on components i-a to i-b, of succinic acid; i-b) from 0 to 10 mol %, based on components i-a to i-b, of one or more C6-C20 dicarboxylic acids; i-c) from 98 to 102 mol %, based on components i-a to i-b, of 1,3-propanediol or 1,4-butanediol; i-d) from 0.05 to 1% by weight, based on components i-a to i-c, of a chain extender or branching agent; ii) from 5 to 14% by weight, based on the total weight of components i to iv, of an aliphatic-aromatic polyester comprising: ii-a) from 30 to 70 mol %, based on components ii-a to ii-b, of a C6-C18-dicarboxylic acid; ii-b) from 30 to 70 mol %, based on components ii-a to ii-b, of terephthalic acid; ii-c) from 98 to 100 mol %, based on components ii-a to ii-b, of 1,3-propanediol or 1,4-butanediol; ii-d) from 0.

Abstract: The present invention relates to an injection-molded item with HDT-B temperature of from 80 to 105° C. in accordance with DIN EN ISO 75-2:2004-09, comprising: i) from 47 to 59% by weight, based on the total weight of components i to iv, of a biodegradable aliphatic polyester; ii) from 3 to 14% by weight, based on the total weight of components i to iv, of an aliphatic-aromatic polyester; iii) from 15 to 24% by weight, based on the total weight of components i to iv, of polylactic acid; iv) from 10 to 35% by weight, based on the total weight of components i to iv, of at least one mineral filler; where the following applies to the compounded material comprising components i to iv: the ratio of component i to component iii in the compounded material is from 2.2 to 3.2, and the MVR of the compounded material is from 8 to 50 cm3/10 min in accordance with DIN EN 1133-1 of March 1, 2012 (190° C., 2.16 kg).

Abstract: The present invention relates to a process for coating paper, wherein the coating material used is a biodegradable, aliphatic-aromatic polyester having a melt volume rate (MVR) according to EN ISO 1133 (190° C., 2.16 kg weight) of from 3 to 50 cm3/10 min.

Abstract: The invention relates to biodegradable polyester mixture, comprising i) from 5 to 80% by weight, based on the total weight of components i to ii, of at least one polyester based on aliphatic and aromatic dicarboxylic acids and on aliphatic dihydroxy compounds, and ii) from 20 to 95% by weight, based on the total weight of components i to ii, of at least one biodegradable homo- or copolyester selected from the group consisting of polylactide, polycaprolactone, polyhydroxyalkanoates, and polyesters composed of aliphatic dicarboxylic acids and of aliphatic diols, and iii) from 0.

Abstract: The present invention relates to single face or double faced corrugated fiberboard comprising one or more corrugated plies, wherein at least one of the linerboard plies or corrugated plies is a paper-film assembly comprising: i) a 30 to 600 g/m2 grammage papery material of construction, ii) a biodegradable polymeric coating from 1 to 100 ?m in thickness. More particularly, the present invention relates to single face or double faced and/or corrugated fiberboard comprising one or more corrugated plies, wherein at least one of the linerboard plies or corrugated plies is a paper-film assembly comprising: i) a 30 to 600 g/m2 grammage papery material of construction as outer layer, ii) a biodegradable polymeric coating from 1 to 100 ?m in thickness as interlayer, and iii) a 30 to 600 g/m2 grammage papery material of construction as inner layer. The present invention further relates to methods of producing this corrugated fiberboard.

Abstract: Provided is a resin composition from which a melt molded product which is excellent in transparency, gas barrier property and flexibility and has biodegradability can be obtained. The present invention relates to a resin composition, which comprises a polyvinyl alcohol-based resin (i) comprising a structural unit represented by the following general formula (1) and an aliphatic-aromatic polyester (ii) comprising a specific component, wherein each of R1, R2 and R3 independently represents a hydrogen atom or an organic group, X represents a single bond or a bonding chain, and each of R4, R5 and R6 independently represents a hydrogen atom or an organic group.

Abstract: The present invention relates to a process for coating paper, wherein the coating material used is a biodegradable, aliphatic-aromatic polyester having a melt volume rate (MVR) according to EN ISO 1133 (190° C., 2.16 kg weight) of from 3 to 50 cm3/10 min.