Abstract: Provided is an aliphatic polyester composition. The aliphatic polyester composition comprises a polybutylene succinate, wherein the proton nuclear magnetic resonance of the aliphatic polyester composition has a first characteristic peak and a second characteristic peak. The first characteristic peak is located between 3.84 ppm and 4.32 ppm, and the second characteristic peak is located between 5.65 ppm and 5.85 ppm. The integral value of the first characteristic peak is set to be 100 and the integral value of the second characteristic peak is less than 0.10. By controlling the integral value of the second characteristic peak in H1-NMR of the aliphatic polyester composition, the aliphatic polyester composition has good appearance and low concentration of carboxylic acid end group and thereby the product value thereof is increased.

Abstract: Provided is a thermoplastic polyether ester elastomer composition having a first chain represented by the following Formula (I) and a second chain represented by the following Formula (II), which are connected to each other: Wherein, the melting point of the thermoplastic polyether ester elastomer composition ranges from 80° C. to 160° C., and the enthalpy of fusion of the thermoplastic polyether ester elastomer composition is greater than 6 J/g. Production of the thermoplastic polyether ester elastomer composition has low energy consumption and facilitates smooth cutting strands into pellets, which is beneficial to mass production of the thermoplastic polyether ester elastomer composition.

Abstract: Provided is a polyester composite film, comprising a first thermoplastic polyether ester elastomer (TPEE) film and a second TPEE film. The melting point of a second TPEE resin of the second TPEE film is higher than that of a first TPEE resin of the first TPEE film, and the absolute difference in enthalpy of fusion between the first and second TPEE films is 5 J/g to 15 J/g. By adopting the first and second TPEE films having specific absolute difference of the enthalpy of fusion and controlling the melting points of the first and second TPEE resins, the polyester composite film can be well attached onto the fabric by hot pressing to obtain sufficient peel strength, and thereby the attached fabric can have excellent waterproof performance. Besides, a hot melt adhesive laminate comprising the polyester composite film also exhibits the above beneficial effects when attached to the fabric.

Abstract: Provided is an aliphatic polyester composition. The aliphatic polyester composition comprises a polybutylene succinate, wherein the proton nuclear magnetic resonance of the aliphatic polyester composition has a first characteristic peak and a second characteristic peak. The first characteristic peak is located between 3.84 ppm and 4.32 ppm, and the second characteristic peak is located between 5.65 ppm and 5.85 ppm. The integral value of the first characteristic peak is set to be 100 and the integral value of the second characteristic peak is less than 0.10. By controlling the integral value of the second characteristic peak in H1-NMR of the aliphatic polyester composition, the aliphatic polyester composition has good appearance and low concentration of carboxylic acid end group and thereby the product value thereof is increased.

Abstract: Provided is a thermoplastic polyether ester elastomer composition having a first chain represented by the following Formula (I) and a second chain represented by the following Formula (II), which are connected to each other: Wherein, the melting point of the thermoplastic polyether ester elastomer composition ranges from 80° C. to 160° C., and the enthalpy of fusion of the thermoplastic polyether ester elastomer composition is greater than 6 J/g. Production of the thermoplastic polyether ester elastomer composition has low energy consumption and facilitates smooth cutting strands into pellets, which is beneficial to mass production of the thermoplastic polyether ester elastomer composition.

Abstract: The instant disclosure relates to a polyester composition and method for preparing the same, as well as products comprising the polyester composition and applications thereof. The polyester composition comprises aliphatic polyester, titanium and zirconium, wherein the weight ratio of titanium/zirconium is greater than 0.05. The polyester composition of the present invention has a specific titanium/zirconium weight ratio range, can reduce the process time, and can obtain a biodegradable composition with a lower acid value.

Abstract: Laser weldable compositions are provided which in various examples include a tricyclodecane dimethanol-modified copolymer, a terephthalate-type polyester and an inorganic filler. Compared with compositions without the tricyclodecane dimethanol-modified copolymer, the compositions of the invention have improved, uniform laser transmittance, thereby welded products including the compositions have improved bonding strength and require stronger tensile strength to be torn apart.