Abstract: A thermoplastic polyester is disclosed to contain a flame retardant and has an intrinsic viscosity between 0.70 and 1.10 dL/g, and for making the disclosed polyester a phosphorus-containing flame retardant is bound onto the molecular chains of the matrix polymer through modification of the molecular structure of the matrix polymer; wherein the disclosed polyester due to having a content of phosphorus between 3,000 and 30,000 ppm based on the weight of the polyester is suitable for making phosphorus-containing heat-shrinkable tubes that possess permanently flame-retardant properties, has a UL94 VTM-2 flame-retardant rating, and even meets the requirements for UL94 VTM-0 flame-retardant rating.

Abstract: PET resins containing a small amount of a blue dye and/or further containing inorganic particles of Fe3O4 or BaSO4 are synthesized in the presence of an inorganic Ti—Mg catalyst employed as a polycondensation catalyst and a phosphorus stabilizer during a polycondensation process, and the resultant PET resins are free of yellowish appearance and reduced regenerated acetaldehyde and cyclic oligomers after processed so that PET bottle preforms if made of the PET resins can facilitate reduction in aging time thereby to improve the product yield of the bottle preforms and to save the stock space for storing the bottle preforms.

Abstract: A polyester resin containing tungsten-titanium carbide particles having a weight ratio (W/Ti) of tungsten (W) to titanium (Ti) ranging between 5:5 and 7:3 is suitable to produce PET preforms possessed excellent infrared-absorbing capability, and the polyester resin as well as preforms and bottles made from the polyester resin are clearer and have good and less yellowish appearances.

Abstract: An antimony-free PET resin produced by using an inorganic Ti—Mg catalyst and a small amount of blue and red dyes, in the absence of an antimony catalyst or a phosphorus stabilizer; and, in a melt spinning process for producing PET polyester fiber, the PET resin demonstrates excellent spinnability but no yarn breaks or aggregation of TiO2 delustering agent so that the resultant PET polyester fiber features commercially desired in both color tone and glossiness. Especially the PET resin and the PET polyester fiber containing no antimony are therefore environmentally friendly by causing no heavy metal pollution to the environment.

Abstract: A titanium-containing PET copolyester has an intrinsic viscosity of 0.72-0.90 dl/g and a maximum amount of heat released during crystallization transition through a DSC analysis at a given heating rate of 20° C./min being less than 10 joules/gram, which contains polyethylene terephthalate as a major component and contains titanium component in an amount of 2-25 ppm based on the total copolyester weight, X mole % of isophthalic acid based on the copolyester, Y mole % of diethylene glycol based on the copolyester, Z mole % of 2,6-naphthalene dicarboxylic acid based on the copolyester, wherein X, Y, Z conforms to the following conditions: 0?X?2.5; 1.0?Y?2.5; 0?Z?2.5; 2.5?X+Y+Z?7.5; and the PET copolyester is suitable for manufacturing an injection stretch blow molded refillable container having an inner volume of greater than 10 litters and capable of being returnable and refillable up to 20 loops of returning.

Abstract: A polyester resin containing tungsten-titanium carbide particles having a weight ratio (W/Ti) of tungsten (W) to titanium (Ti) ranging between 5:5 and 7:3 is suitable to produce PET preforms possessed excellent infrared-absorbing capability, and the polyester resin as well as preforms and bottles made from the polyester resin are clearer and have good and less yellowish appearances.

Abstract: An antimony-free PET resin produced by using an inorganic Ti—Mg catalyst and a small amount of blue and red dyes, in the absence of an antimony catalyst or a phosphorus stabilizer; and, in a melt spinning process for producing PET polyester fiber, the PET resin demonstrates excellent spinnability but no yarn breaks or aggregation of TiO2 delustering agent so that the resultant PET polyester fiber features commercially desired in both color tone and glossiness. Especially the PET resin and the PET polyester fiber containing no antimony are therefore environmentally friendly by causing no heavy metal pollution to the environment.

Abstract: A titanium-containing PET copolyester has an intrinsic viscosity of 0.72-0.90 dl/g and a maximum amount of heat released during crystallization transition through a DSC analysis at a given heating rate of 20° C./min being less than 10 joules/gram, which contains polyethylene terephthalate as a major component and contains titanium component in an amount of 2-25 ppm based on the total copolyester weight, X mole % of isophthalic acid based on the copolyester, Y mole % of diethylene glycol based on the copolyester, Z mole % of 2,6-naphthalene dicarboxylic acid based on the copolyester, wherein X, Y, Z conforms to the following conditions: 0?X?2.5; 1.0?Y?2.5; 0?Z?2.5; 2.5?X+Y+Z?7.

Abstract: A polyethylene terephthalate (PET) resin composition features fast solid-state polymerization and low reproduction of acetaldehyde and cyclic oligomer when processed. In polymerization thereof, a titanium-containing compound is used as a catalyst for polycondensation, and a phosphoric stabilizer and an organic dye are introduced to prevent a yellowish hue of the resultant polyester, while a compound represented by the following formula (I) that contains phosphorus and calcium is added to accelerate solid-state polymerization of the PET pre-polymer and to endow the composed PET resin with better processability so that when processed for making a preform, the PET resin reproduces reduced acetaldehyde and cyclic oligomer.

Abstract: The present invention relates to a polyester resin composition comprising an antimony doped tin oxide for the polyester bottle manufacture, wherein 5˜10,000 ppm of the antimony doped tin oxide particles with a particle diameter of 0.005˜10 ?m is added to a polyester base resin. The polyester resin composition comprising a blue antimony doped tin oxide can not only improve the infrared absorbance capability of polyester parisons, but also provide polyester bottles with a better coloration.

Abstract: An antimony-free PET resin produced by using an inorganic Ti—Mg catalyst and a small amount of blue and red dyes, in the absence of an antimony catalyst or a phosphorus stabilizer; and, in a melt spinning process for producing PET polyester fiber, the PET resin demonstrates excellent spinnability but no yarn breaks or aggregation of TiO2 delustering agent so that the resultant PET polyester fiber features commercially desired in both color tone and glossiness. Especially the PET resin and the PET polyester fiber containing no antimony are therefore environmentally friendly by causing no heavy metal pollution to the environment.

Abstract: PET resins containing a small amount of a blue dye and/or further containing inorganic particles of Fe3O4 or BaSO4 are synthesized in the presence of an inorganic Ti—Mg catalyst employed as a polycondensation catalyst and a phosphorus stabilizer during a polycondensation process, and the resultant PET resins are free of yellowish appearance and reduced regenerated acetaldehyde and cyclic oligomers after processed so that PET bottle preforms if made of the PET resins can facilitate reduction in aging time thereby to improve the product yield of the bottle preforems and to save the stock space for storing the bottle preforms.

Abstract: A thermoplastic copolyester having inherent viscosity (IV) of 0.76˜0.90 dl/g comprises bis-hydroxyethyl terephthalate, 0.8˜3.0 mole % of component containing naphthalene ring structure and 1.0˜2.0 mole % of diethylene glycol based on the copolyester; particularly, the copolyester is suitable for producing a kind of polyester container capable to sustain a hot bottling temperature at least higher than 82? and pass a high temperature pasteurization test successfully.

Abstract: A gray dope dyed superfine fiber with neutral color hue and a fabric made thereof, wherein the mono-filament denier of the gray superfine fiber is of 0.03˜0.5 denier, and the fabric formed by the gray superfine fiber may be further deeply dyed to a desired color during dyeing and finishing stage; particularly, when the fabric after deep dye shall possess not only a desired touch of soft and exquisite but also a superior quality of color fastness to dry crocking over level 4, color fastness to wet crocking over level 3, color fastness to light over level 3, color change of color fastness to laundering over level 4, and color fastness to laundering with respect to PET stain resistance over level 4 and color fastness to laundering with respect to Nylon over level 3.

Abstract: A moisture-permeable waterproof high density fabric made of polyester filament yarn with filament size of 0.2˜0.8 denier per filament (dpf) and with cross section having at least three grooves or recessions formed as Y-shaped, cross-shaped, or W-shaped cross section, or with cross section arranged as distinctive shape of Y-shaped, cross-shaped, or W-shaped cross section at different section of the filament yarn; the fabric is manufactured by high density weaving method, and processed by water repellent and hot press finish after dyeing processing through which to obtain a moisture-permeable waterproof fabric with property of hydrostatic pressure resistance higher than 700 mm H2O and wash ability better than that of the conventional woven fabric made of polyester filament yarn having round cross section, as well as better reproducibility without the need of coating or laminating processing.

Abstract: Manufacturing method for polyester fine denier multifilament. The length of a protective delay shroud of the radial outer-flow quenching system used in melt spinning process for manufacturing fine hollow polyester filaments is expressed as (2˜8060×throughput÷filaments square), and the length of quenching air tube is from 15 to 40 centimeters. The velocity of quenching air is between 0.2 m/sec to 0.6 m/sec. For the layout of the spinneret orifices, the diameter difference of outermost layer orifice and the innermost layer orifice is set less than 20 mm; and the distance between the diameter of innermost orifice layout and the diameter of quenching air tube is at least 12 and less than 33 mm. The orifice density of spinneret layout (orifice density) is set as 7˜15 orifices per square centimeter.

Abstract: A copolyester composition which includes polyethylene terephthalate (PET) is used to manufacture bottle embryos having weight greater than 600 grams and thickness greater than 7.0 millimeters. The copolyester composition of this invention is used to manufacture containers having an inner volume greater than 10 liters. The components of this copolyester composition are polyethylene terephthalate resin, X mole % of isophthalic acid (IPA), Y mole % of diethylene glycol (DEG) and Z mole % of 2, 6 napthalene dicarboxylic acid where X, Y, and Z conform to the following conditions: 2.5?X<6.0, 2.5?Y?5.0, 0?Z?5.0; and the copolyester composition has an intrinsic viscosity of between 0.75 and 0.85 dl/g.

Abstract: A moisture-permeable waterproof high density fabric made of polyester filament yarn with filament size of 0.2˜0.8 denier per filament (dpf) and with cross section having at least three grooves or recessions formed as Y-shaped, cross-shaped, or W-shaped cross section, or with cross section arranged as distinctive shape of Y-shaped, cross-shaped, or W-shaped cross section at different section of the filament yarn; the fabric is manufactured by high density weaving method, and processed by water repellent and hot press finish after dyeing processing through which to obtain a moisture-permeable waterproof fabric with property of hydrostatic pressure resistance higher than 700 mm H2O and wash ability better than that of the conventional woven fabric made of polyester filament yarn having round cross section, as well as better reproducibility without the need of coating or laminating processing.

Abstract: This invention relates to methods for manufacturing super-micro fibers to produce fibers having dimensions of between 0.003-0.0003 denier per filament. The manufacturing methods include the following steps: blending polyamide-polyester mixtures; passing said polyamide-polyester mixtures through single-path and twin-screw extrusion processes; spinning said polyamide-polyester mixtures; melting and dissolving said polyamide-polyester mixtures; and separating polyester compounds from said polyester-polyamide mixtures to form polyamide compound or super-micro fibers.

Abstract: Disclosed is to provide a manufacturing method for polyester fine denier multifilament. The length of a protective delay shroud of the radial outer-flow quenching system used in melt spinning process for manufacturing fine hollow polyester filaments is expressed as (2˜8060×throughput÷filaments square), and the length of quenching air tube is from 15 to 40 centimeters. The velocity of quenching air is between 0.2 m/sec to 0.6 m/sec. For the layout of the spinneret orifices, the diameter difference of outermost layer orifice and the innermost layer orifice is set less than 20 mm; and the distance between the diameter of innermost orifice layout and the diameter of quenching air tube is at least 12 and less than 33 mm. The orifice density of spinneret layout (orifice density) is set as 7˜15 orifices per square centimeter. The fine hollow polyester filaments produced in this invention has 0.3 to 2.5 denier per filament (d.p.f), uster half inert value (u % ½ inert) less than 0.