摘要:
Polyester composition produced without antimony compound as a polycondensation catalyst including, 30 ppm or less antimony, 0.5-50 ppm titanium, and 0.1-100 ppm phosphorus, the number density of titanium-containing particles having an equivalent circular diameter of 1 μm or more being less than 100/0.02 mg; and a composition as above, containing 0.1-5 wt % organic polymer particles which have an average particle diameter of 0.05-3 μm and contain 0.01% or less of coarse particles which have a diameter at least twice the average particle diameter. Polyester catalyst including a reaction product between at least one of Ti(OR)4 and Ti(OH)m(OR)4-m, wherein Rs may be the same or different and each represents a C2-C10 organic group, and m represents an integer of 1-4, and a ligand including nitrogen, sulfur, and/or oxygen as a donor atom, and capable of coordinating with two or more sites.
摘要:
The present invention aims to provide a practical polyester that can be produced substantially without using an antimony compound as a polycondensation catalyst. (I) The present invention provides a polyester resin composition containing, on a weight basis, 30 ppm or less of antimony, 0.5 to 50 ppm of titanium, and 0.1 to 100 ppm of phosphorus, in which the number density of titanium-containing particles, the equivalent circular diameter of which is 1 μm or more, is less than 100/0.02 mg; and (II) The present invention provides a polyester resin composition containing, on a weight basis, 30 ppm or less of antimony, 0.5 to 50 ppm of titanium, and 0.1 to 100 ppm of phosphorus, in which organic polymer particles are contained in amount of 0.1 to 5 wt %, the organic polymer particles having an average particle diameter determined by dynamic light scattering of 0.05 to 3 μm and containing 0.01% or less of coarse particles relative to the total number of the particles, the coarse particles having a diameter at least twice the average particle diameter.
摘要:
A polyester composition produced without using an antimony compound as a polycondensation catalyst and including (I) composition containing, on a weight basis, 30 ppm or less of antimony, 0.5 to 50 ppm of titanium, and 0.1 to 100 ppm of phosphorus, in which the number density of titanium-containing particles, the equivalent circular diameter of which is 1μm or more, is less than 100/0.02 mg; and (II) a composition containing, on a weight basis, antimony, titanium and phosphorous as defined above, in which organic polymer particles are contained in amount of 0.1 to 5 wt%, the organic polymer particles having an average particle diameter determined by dynamic light scattering of 0.05 to 3μm and containing 0.01% or less of coarse particles relative to the total number of the particles, the coarse particles having a diameter at least twice the average particle diameter.
摘要:
A thermoplastic polyester composition suited for preparing a film or fiber having excellent abrasion resistance, as well as a biaxially oriented polyester film consisting essentially of the polyester composition are disclosed. The thermoplastic polyester according to the present invention is characterized by comprising a thermoplastic polyester (A) and zirconium oxide particles (B) having monoclinic and/or tetragonal crystal structure.
摘要:
A polyester resin composition having an equivalent spherical diameter of 1 mm to 50 mm, a degree of crystallization of not less than 65% and less than 99%, an intrinsic viscosity of not more than 0.7 dl/g and a cyclic trimer content of not more than 0.4% by weight. This polymer resin composition has an excellent color tone, causes no significant viscosity lowering or viscosity rise, and can withstand a process which is exposed to a long-term thermal history. A polyester resin composition having a viscosity suitable for extrusion in a general-purpose manner, a production process thereof, and a polyester film are also provided.
摘要:
A polyester resin composition having an equivalent spherical diameter of 1 mm to 50 mm, a degree of crystallization of not less than 65% and less than 99%, an intrinsic viscosity of not more than 0.7 dl/g and a cyclic trimer content of not more than 0.4% by weight. This polymer resin composition has an excellent color tone, causes no significant viscosity lowering or viscosity rise, and can withstand a process which is exposed to a long-term thermal history. A polyester resin composition having a viscosity suitable for extrusion in a general-purpose manner, a production process thereof, and a polyester film are also provided.
摘要:
A process of producing a polyester composition includes carrying out an esterification reaction of a dicarboxylic acid component with a diol component, and then carrying out a polycondensation reaction, wherein the diol component is added twice or more during a time from completion of the esterification reaction until beginning the polycondensation reaction, and alkali metal phosphate is added with an amount of COOH terminal groups of an esterification reactant being not more than 150 eq/ton.
摘要:
A printer according to the present invention includes a transfer roll and a plurality of the printing rolls. At least one printing roll of the plurality of the printing rolls transfers ink containing a conductive material to the transfer roll. Preferably, the at least one printing roll includes a printing roll configured to transfer ink containing a conductive material to the transfer roll and a printing roll configured to transfer ink containing a conductive material to the transfer roll.
摘要:
An optical fiber cable fixing structure capable of properly meeting any optical fiber cable having a wide range of diameters without deteriorating optical transmission characteristics when the optical fiber cable is fixed to a fixed-member. The optical fiber cable fixing structure includes an arcuate inner peripheral surface which is to be contacted with a side surface of the optical fiber cable, a first cable holding member secured to the fixed-member, an arcuate inner peripheral surface which is to be contacted with a side surface of the optical fiber cable, a second cable holding member slidably mounted on the fixed-member for sliding toward and away from the first cable holding member, and a stopper for removably securing the second cable holding member at any desired position. A plurality of protuberances each having a sharp tip are provided on the inner peripheral surfaces of the first and second cable holding members, respectively.
摘要:
In an anisotropic conductive adhesive including a magnetic powder such as nickel-coated resin particles used as conductive particles, the conductive particles are present in an insulating adhesive composition without being aggregated. The magnetic powder used as the conductive particles is at least partially composed of a magnetic material. In this case, demagnetization has been performed on the conductive particles in a powder form that have not been dispersed in the insulating adhesive composition, the conductive particles in a paste obtained by dispersing the conductive particles in the insulating adhesive composition, or the conductive particles in a film formed from the paste, before establishment of an anisotropic conductive connection using the anisotropic conductive adhesive.