摘要:
A process for the production of biodegradable aliphatic polyester particles by (co)polymerizing 2-oxetanone or a mixture containing at least 80% by weight of 2-oxetanone and up to 20% by weight of a cyclic ester or cyclic ether other than 2-oxetanone in the presence of a polymerization initiator supported on a carrier in which an ion polymerization initiator is supported on poly(2-oxetanone) in a liquid medium having a solubility parameter of about 15 to about 18 MPa.sup.1/2 and being capable of dissolving 2-oxetanone, and in a polymerizing apparatus having an internal surface formed of a material which is free of polarity or whose polarity is very small, to form a particulate aliphatic polyester; and a biodegradable aliphatic polyester melt-extrusion film, which comprises the biodegradable aliphatic polyester having a weight average molecular weight of 20,000 to 2,000,000, and having a water vapor transmission rate of 300 to 700 g/m.sup.2.24 hours.25 .mu.m and heat-fusing strength of 500 to 5,000 gf/15 mm.
摘要:
To provide an efficient method for recovering and producing lactide having high optical purity by depolymerizing a polylactic acid or derivative thereof in order to carry out chemical recycling of the polylactic acid or derivative thereof or of a resin composition comprising same, wherein a mixture of a polylactic acid or derivative thereof and aluminum hydroxide is thermally decomposed at a temperature in a range from at least the melting temperature of the polylactic acid or derivative thereof to no greater than 320° C., thus recovering lactide.
摘要:
A macro block MB2 including a physical-layer circuit PHY for communications performs transmission and reception processing to and from a macro block MB1 at a clock frequency CF1. A test circuit TC includes a test transmission buffer TXB that stores a transmission data signal from a test input terminal TPI at a frequency CF2 that is lower than the frequency CF1, and a test reception buffer RXB that outputs a reception data signal to a test output terminal TPO at a frequency CF3 that is lower than the frequency CF1. After the transmission buffer TXB has stored the transmission data signal from the terminal TPI at the frequency CF2, it outputs the stored transmission data signal to the MB2 at the frequency CF1. After the reception buffer RXB has stored the reception data signal from the MB2 at the frequency CF1, it outputs the stored reception data signal to the terminal TPO at the frequency CF3.
摘要:
A data transfer control device includes a PATA I/F connected to a PATA bus, a SATA I/F connected to a SATA bus, and a sequence controller that controls a transfer sequence. The PATA I/F includes a task file register that is a pseudo register provided to implement a PATA/SATA bus bridge, and the SATA I/F includes a shadow task file register, a register value being transferred between the shadow task file register and the task file register.
摘要翻译:数据传输控制装置包括连接到PATA总线的PATA I / F,连接到SATA总线的SATA I / F以及控制传送顺序的序列控制器。 PATA I / F包括一个作为伪寄存器的任务文件寄存器,用于实现PATA / SATA总线桥,SATA I / F包括一个影子任务文件寄存器,一个寄存器值在影子任务文件寄存器和 任务文件注册。
摘要:
A process for the production of biodegradable aliphatic polyester particles by (co)polymerizing 2-oxetanone or a mixture containing at least 80% by weight of 2-oxetanone and up to 20% by weight of a cyclic ester or cyclic ether other than 2-oxetanone in the presence of a polymerization initiator supported on a carrier in which an ion polymerization initiator is supported on poly(2-oxetanone) in a liquid medium having a solubility parameter of about 15 to about 18 MPa.sup.1/2 and being capable of dissolving 2-oxetanone, and in a polymerizing apparatus having an internal surface formed of a material which is free of polarity or whose polarity is very small, to form a particulate aliphatic polyester; and a biodegradable aliphatic polyester melt-extrusion film, which comprises the biodegradable aliphatic polyester having a weight average molecular weight of 20,000 to 2,000,000, and having a water vapor transmission rate of 300 to 700 g/m.sup.2 .multidot.24 hours.multidot.25 .mu.m and heat-fusing strength of 500 to 5,000 gf/15 mm.
摘要:
A transfer controller (or a host controller) issues IN tokens to a plurality of USB devices connected to USB and including first and second USB devices. When data including destination information which specifies the second USB device as a destination has been received in response to an IN token issued to the first USB device, the transfer controller issues an OUT token to the second USB device and transmits the received data from the first USB device to the second USB device. The transfer controller issues an IN token to at least one of the USB devices which has declared itself to be a local area network (LAN) node.
摘要:
A macro cell creating method capable of accurately calculating the delay values regarding input/output terminals of a macro cell and efficiently designing a high-speed macro cell. The macro cell creating method includes a first step for creating a frame of a macro cell based on a size estimate of a circuit, a second step for disposing provisional external input/output terminals on the frame of the macro cell based on input/output terminal information of the circuit, a third step for adding connection information of the provisional external input/output terminals with actual input/output terminals to circuit connection information, a fourth step for disposing basic function cells based on the circuit connection information, a fifth step for wiring the basic function cells, a sixth step for deleting wired lines between the provisional external input/output terminals and the actual input/output terminals, and a seventh step for creating macro cell layout data.