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 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:
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:
Disclosed is a video signal processing apparatus applicable to various LCD panels. This video signal processing apparatus includes a format converting unit which converts first-format image data into second-format image data, a point sequential converting unit which converts the second-format image data into point sequenced data, a resizing unit which resizes the point sequenced data, a line memory which stores the resized point sequenced data, and an output control unit which controls to continuously read out the point sequenced data from the line memory.
摘要:
An image processor which forms a composite image of at least two images includes a storage unit which stores first and second image data, and a display unit which reads and displays the stored first and second image data in modes adapted to display forms of the first and second image data. The image processor also includes an image-signal forming unit which forms image signals representing a composite image of the stored first and second image data for display on a television monitor and a liquid crystal display panel.
摘要:
A polyester composition includes a ligand capable of coordinating to a metal or metal ion, wherein the ligand includes at least one donor atom selected from the group consisting of a nitrogen atom, a sulfur atom, and an oxygen atom. Consequently, it is possible to inactivate a metal catalyst which adversely affects heat resistance. As a result, it is possible to obtain polyester compositions and films having excellent heat resistance, colorability, and weathering resistance. Moreover, in the process of producing a polyester, by separating and recovering a catalyst by adding a ligand which is capable of coordinating to a metal or metal ion and which includes at least one donor atom selected from the group consisting of a nitrogen atom, a sulfur atom, and an oxygen atom, it is possible to improve the heat resistance of the polyester composition.
摘要:
An image processor which forms a composite image of at least two images includes a storage unit which stores first and second image data, and a display unit which reads and displays the stored first and second image data in modes adapted to display forms of the first and second image data. The image processor also includes an image-signal forming unit which forms image signals representing a composite image of the stored first and second image data for display on a television monitor and a liquid crystal display panel.
摘要:
A microscope apparatus has a sample table for supporting a sample and being mounted to undergo movement in a horizontal direction. A line sensor acquires a line image for each of a series of measuring positions of the sample in accordance with movement of the sample at a constant speed by one measuring width of the line sensor in the horizontal direction. An image processing device produces an image of the sample based on the line images acquired by the line sensor. A focusing device has a light-projecting member for projecting light onto the sample at a position forward of a leading side of an imaging range of the line sensor in the horizontal direction to prevent light reflected by the sample as a result of the projected light from being incident on and interfering with the line images acquired by the line sensor.