摘要:
An acrylic resin composition comprises an organic silicon based compound that can be copolymerised with or mixed with acryl monomer or methacryl monomer in the acrylic resin. The acrylic resin composition may contain inorganic fine grains of which the hydroxyl group or the methyl group is bonded to their surface. A painted-film molded resin plate and a coating member for a solar cell panel use the above acrylic resin composition.
摘要:
A headphone device and to a technique that makes the headphone device both easy to wear and comfortable when being worn. The headphone device is constructed in such a manner that the positional relationship between driver units and auricles does not change and includes one driver unit and a headband having flexibility and resilience for supporting the driver unit. The headband is arranged around the occipital region of the head when put on the head in such a manner that the driver unit is pressed onto an auricle by the resilience. The headphone device is provided with at least one engaging member having a support coming into contact with an upper side of a root of the auricle, and an auxiliary support coming into contact with a rear side of the root of the auricle.
摘要:
The present technology is an epoxy resin composition for a fiber-reinforced composite material comprising a phosphorus-containing epoxy resin containing phosphorus in the skeleton thereof, a dicyandiamide, and a curing promoter containing at least one selected from 1,1′-(4-methyl-1,3-phenylene)bis(3,3-dimethylurea), phenyl-dimethylurea represented by the following formula (1), and methylene-diphenyl-bisdimethylurea represented by the following formula (2); wherein the phosphorus content of the phosphorus-containing epoxy resin is at least 1.0 mass % and at most 5.0 mass % in the epoxy resin composition.
摘要:
The present invention provides an epoxy resin composition for a fiber reinforced composite material comprising an epoxy resin (A) comprising an epoxy resin (a1) having a weight average molecular weight of up to 1,000 and an epoxy resin (a2) having a weight average molecular weight of 10,000 to 100,000 which contains at least 20% by weight of the basic skeleton of the epoxy resin (a1), a thermoplastic resin (B), and a curing agent (C). The cured composition has a co-continuous phase of the epoxy resin (A) and the thermoplastic resin (B) and/or a continuous phase of the thermoplastic resin (B). A cured product having a high toughness can be obtained from this epoxy resin composition.
摘要:
Provided is an epoxy resin composition for fiber-reinforced composite materials, which serves as a matrix resin for a prepreg. This epoxy resin composition is improved in tackiness stability during storage, while maintaining mechanical characteristics. The epoxy resin composition for fiber-reinforced composite materials is characterized by containing 25 to 50 parts by weight of an amine curing agent (B) selected from aliphatic polyamines, alicyclic polyamines and aromatic polyamines, and 1 to 20 parts by weight of an organic acid dihydrazide compound (C) having a melting point of not less than 150° C., per 100 parts by weight of an epoxy resin (A).
摘要:
Provided is an epoxy resin composition for fiber-reinforced composite materials, which is improved in toughness necessary for improving the strength of self-adhesion of a matrix resin for use in a prepreg for a face sheet of a honeycomb panel. The epoxy resin composition, which comprises: an epoxy resin (A); a thermoplastic resin (B); fine solid resin particles (C); and a curing agent (D), is characterized in that the epoxy resin composition after being cured has a morphology in which the epoxy resin (A) and the thermoplastic resin (B) form co-continuous phases, and the fine solid resin particles (C) are dispersed in at least the continuous phase of the epoxy resin (A) in the co-continuous phases.
摘要:
A facsimile apparatus has a line I/F section that transmits and receives a signal through a network to which an exchange is connected, a modem signal detection section that detects a modem signal transmitted through the network, a ring signal detection section that detects a ring signal transmitted through the network from the exchange, a switch section that switches a signal detection mode of the line I/F section between a ring signal detection mode in which the ring signal detection section detects the ring signal and a modem signal detection mode in which the modem signal detection section detects the modem signal, and an operating state determination section that determines an operating state of the facsimile apparatus, wherein if the operating state determination section determines that the facsimile apparatus is in a standby mode, the switch section switches the signal detection mode into the ring signal detection mode.
摘要:
A method of correcting temperature characteristic of a rotation angle detecting device that includes a permanent magnet, a magnetic core, a Hall element that rotates relative to the permanent magnet when a rotating object rotates to provide an output signal. The method includes a step of setting temperature correction values for correcting a temperature characteristic of the rotation angle detecting device according to magnetic flux density. The magnetic flux density is divided into a plurality of grade ranges and the temperature correction values are respectively set for the grade ranges.
摘要:
Provided is an epoxy resin composition for fiber-reinforced composite materials, which serves as a matrix resin for a prepreg. This epoxy resin composition is improved in tackiness stability during storage, while maintaining mechanical characteristics. The epoxy resin composition for fiber-reinforced composite materials is characterized by containing 25 to 50 parts by weight of an amine curing agent (B) selected from aliphatic polyamines, alicyclic polyamines and aromatic polyamines, and 1 to 20 parts by weight of an organic acid dihydrazide compound (C) having a melting point of not less than 150° C., per 100 parts by weight of an epoxy resin (A).