Panasonic Intellectual Property Management Co., Ltd.

Sumitomo Chemical Company, Limited

National Institute of Advanced Industrial Science and Technology

Takayuki Mino

Yoshinobu Nozue

Kazuki Yoshimura

Takahiro Kamikawa

Masayuki Kobayashi

Toshihiko Manami

Kensuke Naraki

Takaya Ichimiya

Katsumi Akada

Provided are an apparatus and a method for manufacturing high-pressure method low-density polyethylene, the apparatus and the method having excellent characteristics that the amount of smoke generated during processing of a polyethylene to be obtained is small, and the number of fish eyes contained in a film formed from the polyethylene is small. An apparatus for manufacturing high pressure method polyethylene includes: an ethylene supply line that is a line branched from a high pressure recycle ethylene line and connected to a recycle ethylene holding drum for decompressing high pressure recycle ethylene from the high pressure recycle ethylene line and supplying the decompressed recycle ethylene to the recycle ethylene holding drum; and the recycle ethylene holding drum that is a drum for holding the decompressed recycle ethylene through the ethylene supply line.

Apparatus and method for manufacturing high-pressure method low-density polyethylene

Provided are an ethylene-based polymer capable of obtaining a film in which thickness unevenness is reduced, a method of producing the ethylene-based polymer, and a film containing the ethylene-based polymer. In the ethylene-based polymer according to the present invention, the following Expressions (1) and (2) are satisfied:0.362&#x2264;&#x3b7;&#x2264;0.466&#x2003;&#x2003;(1)0.0282&#x2264;51&#x2264;0.0328&#x2003;&#x2003;(2).

Ethylene-based polymer, method of producing ethylene-based polymer, and film

In a storage-battery control system, an insulating communication unit couples a controller to a battery module constituting a storage battery unit that outputs a predetermined high voltage value. A power supply line is further provided for supplying electric power output from a controller DC/DC, i.e., a controller-side voltage converter for the controller, to the battery module, so that electric power is collectively supplied via the power supply line to a module CPU and a module-side insulating circuit both consuming electric power in the battery module. A secondary battery in the battery module supplies electric power to only a cell-voltage detector.

Storage-battery control system

In a storage-battery control system, an insulating communication unit couples a controller and a plurality of battery modules coupled together in series to configure a storage battery unit. A floating grounding pattern of the controller is divided into a first floating grounding pattern and a second floating grounding pattern. The plurality of battery modules in the storage battery unit is divided into a first zone battery module group and a second zone battery module group so that the battery modules belonging to the first zone battery module group correspond to the first floating grounding pattern, while the battery modules belonging to the second zone battery module group correspond to the second floating grounding pattern. An insulating communication unit couples the respective battery modules.

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Chiba, Japan

Takayuki Mino