A polyethylene terephthalate functionalized with polyether amine to obtain antibacte-rial properties is described. Described are also uses of and methods for producing this functionalized polyester.

Use of complex polyester amines and polyester quaternary ammonium compounds as corrosion inhibitors for metal surfaces, and a method for protecting a metal surface from corrosion by contacting the metal surface with said corrosion inhibitor.

Method for obtaining biodegradable polymers that has a stage of esterification and/or transesterification and amidation reaction, a stage of prepolycondensation, a stage of polycondensation, a stage of extraction and a stage of drying, eliminating the use of chain extenders. The polymer can achieve all the range of viscosities desired and with an improved colour compared to the polymer from other methods, where chain extenders are used, provide a more efficient process, that is environmentally cleaner and safer for the operatives.

A curing agent composition and a curing agent coating formula thereof are provided. The curing agent composition includes 5 to 25 wt % of an ester group-containing amine end group adduct, 2 to 25 wt % of a C8-C22 hydrophobic saturated or unsaturated fatty amine, 2 to 25 wt % of a polyamine compound, 2 to 20 wt % of a silane compound, and 10 to 60 wt % of an ether solvent.

The present invention concerns a method for forming a silane modified polyester composition. In addition, the invention concerns a silane modified polyester composition obtained by such method and use of such composition. In particular, the present invention concerns a method comprising subjecting polyester blend and polysiloxane mixture to react through reactive extrusion in a melt compounding process to form a silane modified polyester composition.

Powder coating resins and coatings made using the powder coating resins are described. The powder coating resins are based on the use of C.sub.12 to C.sub.23 diesters. The C.sub.12 to C.sub.23 diesters are reacted with a reactant having an alcohol functionality and an amine functionality to form an intermediate polyol, followed by reaction with a diacid to a carboxylic acid terminated polymer having ester and amide functionality.

Disclosed is a polycarbonate resin composition including (1) a polyester compound having a structure of chemical formula 1 as defined herein or a phenyl-arylene ether sulfone compound having a structure of chemical formula 2 as defined herein; (2) a polycarbonate block copolymer; and (3) a thermoplastic aromatic polycarbonate resin or a polysiloxane-polycarbonate resin; and a molded product including the same. The polycarbonate resin composition exhibits remarkably excellent heat resistance compared to existing high heat resistance polycarbonate resins, and has an excellent balance of physical properties such as fluidity.

New homopolymers and copolymers of diester-based polymers have been synthesized. When these polymers are combined with electrolyte salts, such polymer electrolytes have shown excellent electrochemical oxidation stability in lithium battery cells. Their stability along with their excellent ionic conductivities make them especially suitable as electrolytes in high energy density lithium battery cells.

New homopolymers and copolymers of diester-based polymers have been synthesized. When these polymers are combined with electrolyte salts, such polymer electrolytes have shown excellent electrochemical oxidation stability in lithium battery cells. Their stability along with their excellent ionic conductivities make them especially suitable as electrolytes in high energy density lithium battery cells.

Copolymer blends comprising a first copolymer and a second copolymer, wherein the first and second copolymers each independently comprise units of A and B as defined herein.