摘要:
The invention relates to a process for making modified polybutylene terephthalate random copolymers from a polyethylene terephthalate component. In one embodiment, the invention relates to a two step process in which a 1,4-butane diol component reacts with a polyethylene terephthalate component under conditions that depolymerize the polyethylene terephthalate component into a molten mixture and the molten mixture is placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers. In another embodiment, the invention relates to a three step process in which a diol component selected from the group consisting of ethylene glycol, propylene glycol, and combinations thereof reacts with a polyethylene terephthalate component under conditions sufficient to depolymerize the polyethylene terephthalate component into a first molten mixture; and where the first molten mixture is combined with 1,4-butane diol under conditions that create a second molten mixture that is subsequently placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers. The invention also relates to compositions made from processes of the invention.
摘要:
The invention relates to a composition comprising a modified, random copolyetherester containing a modified, random polybutylene terephthalate copolymer block that is derived from a polyethylene terephthalate component selected from the group consisting of polyethylene terephthalate and polyethylene terephthalate copolymers and combinations thereof; and contains at least one residue derived from the polyethylene terephthalate component; and a polyalkylene oxide copolymer block that is derived from a polyethylene terephthalate component and polyalkylene oxide glycol, and contains polyalkylene oxide and at least one residue derived from the polyethylene terephthalate component. Advantageously, the composition has a modulus of elasticity that is at least 80%, as compared to the modulus of elasticity of a copolyetherester derived from (1) polybutylene terephthalate derived from a monomer component selected from the group consisting of terephthalic acid, isophthalic acid, alkyl esters of terephthalic acid, hydroalkyl esters of terephthalic acid, alkyl esters of isophthalic acid, 1, 4-butanediol, (2) polyalkylene oxide glycol, and (3) combinations thereof. The invention also relates to articles made from the composition, methods of making the composition. The invention also relates to copolyetherester containing: a modified, random polytrimethylene terephthalate copolymer blocks, articles made from the compositions, and methods for making such materials.
摘要:
A compressor includes a housing and one or more working elements. A muffler is located downstream of the discharge plenum. A centerbody is located in the discharge plenum upstream of the muffler spanning a major portion of a length between a bearing case and the muffler.
摘要:
Disclosed is a veneer slicing apparatus including a table assembly. A blade support is mounted on the table assembly. A blade is supported in the blade support. A carriage assembly is adapted to engage and hold a log generally parallel to the table assembly. A drive assembly is configured to reciprocate the carriage assembly between a cutting stroke and a return stroke. During the cutting stroke, the log is passed over the blade to longitudinally cut a slice of veneer from the log. Disclosed is a method for manufacturing veneer. At least one log is received on a table assembly. The log is engaged by a carriage assembly. The log dwells in a ready position on a heated portion of the surface. The carriage assembly is moved to pass the log longitudinally over a blade supported on the table assembly to cut a slice of veneer.
摘要:
An improved method for placing the work point of a work piece in alignment with a line of action of a bonding tool is provided by interposing a partially reflecting mirror between a viewing microscope and the line of action of the tool, and projecting a target image on said mirror such that the image coincides with the line of sight to the work point of the tool.The method can be practiced with an apparatus attached to the output end of a microscope and which includes an image projector formed by a light source and a transparency. Provision is made for moving the transparency to an effective distance from the mirror corresponding to the distance from the mirror to the work piece whereby the image will appear to be superimposed on the work piece notwithstanding that the degree of illumination of the work piece exceeds the level of target image illumination.
摘要:
A touch-based input system includes a screen and multiple projectors that project graphics onto the screen. A processor processes user interactions with the screen and generates touch data based upon the interactions.
摘要:
A thermoplastic composition comprises, based on the total weight of the composition: 51-90 wt % polyester, 10-49 wt % ABS impact modifier; 0-20 wt % of multifunctional epoxy compound; 0-40 wt % filler; 0-2 wt % fibrillated fluoropolymer; and more than 0 to 5 wt % of a stabilizer composition. An article blow molded or injection molded from the composition has a multi-axial impact total energy from 30-100 Joules at −30° C. and a ductility of more than 90%; a permeability of more than 0 and less than or equal to 1.5 g/m2-day to ASTM D 471-98 Fuel C, measured after exposure to ASTM D 471-98 Fuel C vapor for 20 weeks at 40° C.; an MVR of 1-20 cc/10 min., measured at 265° C.; a flexural modulus of greater than 1300 MPa; and retains at least 75% of its initial tensile elongation at break, after exposure to Fuel E85 for 28 days at 70° C.
摘要翻译:基于组合物的总重量,热塑性组合物包含:5-1-90wt%聚酯,10-49wt%ABS抗冲改性剂; 0-20重量%多官能环氧化合物; 0-40重量%填料; 0-2重量%原纤化含氟聚合物; 和大于0至5重量%的稳定剂组合物。 由该组合物吹塑或注射成型的制品在-30℃下具有30-100焦耳的多轴冲击总能量和大于90%的延展性; 根据ASTM D 471-98燃料C,在40℃下暴露于ASTM D 471-98燃料C蒸气20周后测量的渗透率大于0且小于或等于1.5g / m 2·天。 在265℃下测量的,为1-20cc / 10分钟的MVR。 弯曲模量大于1300MPa; 并且在70℃下暴露于Fuel E85 28天后,保持其初始拉伸伸长率的至少75%
摘要:
A universal touch input driver includes a device driver interface through which touch data is obtained from a device driver. Also included is a computation module that processes the touch data and converts it into a standardized format. Also included is an application interface through which the standardized touch data is transferred to a touch input application.