Abstract: The present invention relates to a polyester resin. The polyester resin is useful for bottles, sheets, multilayer sheets, stretched films and fiber applications due to excellent heat resistance and transparency, and in particular, the polyester resin has little deterioration of physical properties such as yellowing, etc., during processing. A process for making the polyester resin includes an esterification reaction between a dicarboxylic acid that includes terephthalic acid and a diol that includes isosorbide in the presence of a catalyst, followed by a polycondensation reaction on a product of the esterification reaction. In some embodiments, an initial mixing ratio of the dicarboxylic acid and the diol is between 1:1.02 and 1:1.04.

Abstract: The present invention relates to an MDO thermoresistant heat-shrinkable multilayer film of a copolymer polyester having excellent thermal resistance. In particular, the present invention provides an MDO thermoresistant heat-shrinkable multilayer film that includes multiple skin layers capable of improving thermal resistance formed on a substrate layer capable of providing high shrinkage, and simultaneously has excellent thermal resistance and high shrinkage properties through MD orientation instead of the conventional TD orientation method.

Abstract: The present invention relates to a polyester fiber, a preparation method thereof and a molded article prepared therefrom. The polyester fiber comprises a diol moiety derived from isosorbide in a specific amount and is formed into a polyester resin having a specific oligomer content, thereby providing a molded article having excellent saline water resistance, chemical resistance, light resistance and good knot strength, and capable of maintaining high transparency.

Abstract: The present invention relates to a polyester container. The polyester container is formed from a polyester resin containing a particular content of diol moieties derived from isosorbide and diethylene glycol, and thus can show high transparency in spite of a great wall thickness thereof.

Abstract: Provided is a precursor for depositing a silicon-containing layer, the silicon precursor having a heterocyclic group, and a method of depositing a silicon-containing layer using the same. The silicon precursor is represented by Formula 1. In Formula 1, A1 is a heterocyclic group including one or more nitrogen, and R1 is hydrogen or an alkyl group of 1˜6 carbon atoms. R2 may be an alkyl group of 1˜6 carbon atoms. R3 may be an alkyl group of 1˜6 carbon atoms.

Abstract: Provided are a silicon precursor having a heterocyclic group, a composition for depositing a silicon-containing layer including the same, and a method of depositing a silicon-containing layer using the same. The silicon precursor is represented by Formula 1. In Formula 1, A1 is a heterocyclic group including one or more nitrogen, and R1 is hydrogen or an alkyl group of 1-6 carbon atoms. R2 and R3 may be each independently an alkyl group of 1-6 carbon atoms.

Abstract: Provided are a composition for depositing a silicon-containing thin film containing a bis(aminosilyl)alkylamine compound and a method for manufacturing a silicon-containing thin film using the same, and more particularly, a composition for depositing a silicon-containing thin film, containing the bis(aminosilyl)alkylamine compound capable of being usefully used as a precursor of the silicon-containing thin film, and a method for manufacturing a silicon-containing thin film using the same.

Abstract: The present invention relates to a polyester resin. The polyester resin contains a particular content of diol moieties, derived from isosorbide and diethylene glycol, and thus can provide a resin molded product exhibiting high transparency in spite of a large wall thickness thereof.

Abstract: Provided is a composition containing a silylamine compound and a method for manufacturing a silicon-containing thin film using the same, and more particularly, a composition for depositing a silicon-containing thin film, containing a silylamine compound capable of forming a silicon-containing thin film having a significantly excellent water vapor transmission rate to thereby be usefully used as a precursor of the silicon-containing thin film and an encapsulant of a display, and a method for manufacturing a silicon-containing thin film using the same.

Abstract: The present invention relates to an MDO heat-shrinkable film of a copolymer polyester having excellent thermal resistance. In particular, the present invention provides a copolymer polyester MDO (machine direction orientation) thermoresistant heat-shrinkable film that consists of a copolymer polyester resin including isosorbide and 1,4-cyclohexanedimethanol at an optimized content ratio as a diol component copolymerized with an acid component including terephthalic acid, and having a number average molecular weight of 18,000 g/mol or more, and can be used for labels, cap seals, direct packaging, etc. of various containers due to the high shrink initiation temperature.

Abstract: The present invention relates to a polyester container. The polyester container is formed from a polyester resin containing a particular content of diol moieties derived from isosorbide and diethylene glycol, and thus can show high transparency in spite of a great wall thickness thereof.

Abstract: The present invention relates to a polyester resin. The polyester resin contains a particular content of diol moieties, derived from isosorbide and diethylene glycol, and thus can provide a resin molded product exhibiting high transparency in spite of a large wall thickness thereof.

Abstract: The present invention relates to a polyester container. The polyester container is formed from a polyester resin containing a particular content of diol moieties derived from isosorbide and diethylene glycol, and thus can show high transparency in spite of a great wall thickness thereof.

Abstract: The present invention relates to a polyester resin. The polyester resin contains a particular content of diol moieties, derived from isosorbide and diethylene glycol, and thus can provide a resin molded product exhibiting high transparency in spite of a large wall thickness thereof.

Abstract: Provided is a novel silylcyclodisilazane compound, a composition for depositing a silicon-containing thin film containing the same, and a method for manufacturing the silicon-containing thin film using the same, and since the silylcyclodisilazane compound of the present invention has high reactivity, thermal stability and high volatility, it can be used as a silicon-containing precursor, thereby manufacturing a high-quality silicon-containing thin film by various deposition methods.

Abstract: The present invention relates to a polyester film and a preparation method thereof. The polyester film is formed of a polyester resin having a specific content of isosorbide and diethylene glycol introduced therein, containing a low content of oligomer, and exhibiting a specific intrinsic viscosity, thereby exhibiting excellent mechanical properties, heat resistance and chemical resistance, and good heat sealability.

Abstract: Provided are a composition for depositing a silicon-containing thin film containing a bis(aminosilyl)alkylamine compound and a method for manufacturing a silicon-containing thin film using the same, and more particularly, a composition for depositing a silicon-containing thin film, containing the bis(aminosilyl)alkylamine compound capable of being usefully used as a precursor of the silicon-containing thin film, and a method for manufacturing a silicon-containing thin film using the same.

Abstract: Provided are a composition for depositing a silicon-containing thin film, containing a trisilylamine compound and a method for producing a silicon-containing thin film using the same, and more particularly, a composition for depositing a silicon-containing thin film, containing a trisilylamine compound which is capable of forming a silicon-containing thin film at a very high deposition rate at a low temperature to be usable as a precursor of a silicon-containing thin film and an encapsulant of a display, and a method for producing a silicon-containing thin film by using the same.

Abstract: The present invention relates to a polyarylene sulfide which has more improved compatibility with other polymer materials or fillers, and a method for preparing the same. The polyarylene sulfide is characterized in that at least part of end groups of the main chain of the polyarylene sulfide is hydroxyl group (—OH), the polyarylene sulfide contains iodine bonded to its main chain and free iodine, and the content of iodine bonded to the main chain and free iodine is 10 to 10,000 ppmw.

Abstract: The present invention relates to a polyarylene sulfide resin composition having good processability and showing excellent properties due to its more improved miscibility with other polymer materials or fillers, and a formed article. Such polyarylene sulfide resin composition includes a polyarylene sulfide including a disulfide repeating unit in the repeating units of the main chain; and at least one component selected from the group consisting of a thermoplastic resin, a thermoplastic elastomer, and a filler.