摘要:
A problem is to provide polyhydroxyurethane microparticles, which have a narrow particle size distribution and are applicable to a wide range of use. Provided are polyhydroxyurethane microparticles which are spherical polymer microparticles having particle sizes of 0.1 μm to 300 μm. A polymer that makes up the polymer microparticles has in a structure thereof chemical structure units represented by the following formula (1) and/or chemical structure units represented by the following formula (2). In the chemical structure units (1) and (2), —O—CO— bonds have been derived from carbon dioxide.
摘要:
An electric power tool is powered by a plurality of rechargeable battery cells and configured to removably receive respective rechargeable battery cells individually. The electric power tool may preferably include a monitor circuit that monitors states of respective battery cells, and an indicator circuit that indicates the states of the respective battery cells monitored by the monitor circuit. Especially, the monitor circuit may preferably monitor output voltages of the respective rechargeable battery cells and the indicator circuit may preferably indicate whether the detected output voltages are within a predetermined range.
摘要:
Provided are a self-crosslinking polysiloxane-modified polyhydroxy polyurethane resin derived from a reaction of a 5-membered cyclic carbonate polysiloxane compound represented by the following formula (1) and an amine compound and having polysiloxane segments and masked isocyanate groups in its structure: wherein A means and its production process. The present invention can provide a polyhydroxy polyurethane resin, the development of applications of which has not moved ahead in the prior art, as a novel self-crosslinking polyhydroxy polyurethane resin that enables to provide products excellent in lubricity, abrasion resistance, chemical resistance, non-tackiness, heat resistance and the like, is useful from the viewpoint of the reduction of warming gas, and is responsive to the environment.
摘要:
Disclosed are a polysiloxane-modified polyhydroxy polyurethane resin derived from a reaction between a 5-membered cyclic carbonate compound and an amine-modified polysiloxane compound, and its production process; and a resin composition, thermal recording medium, imitation leather, thermoplastic polyolefin resin skin material, weather strip material, and weather strip, all of which make use of the resin.
摘要:
A 5-membered cyclic carbonate polysiloxane compound is represented by the below-described formula (1), and is produced by a process that reacts an epoxy-modified polysiloxane compound with carbon dioxide. wherein A means in which R1 means an alkylene group which has from 1 to 12 carbon atoms and may be linked via an element of O, S or N and/or —(C2H4O)b—, R2 means a direct bond or an alkylene group having from 2 to 20 carbon atoms, R2 may be linked to an alicyclic group or aromatic group, b stands for a number of from 1 to 300, and a stands for a number of from 1 to 300.
摘要:
Disclosed are a polysiloxane-modified polyhydroxy polyurethane resin characterized by being derived from a reaction between a 5-membered cyclic carbonate polysiloxane compound represented by the below-described formula (1) and an amine compound, and its production process; and a resin composition, thermal recording medium, imitation leather, thermoplastic polyolefin resin skin material, weather strip material, and weather strip, all of which make use of the resin. wherein A means
摘要:
An electric compressor includes an electric motor, a compression mechanism driven by the electric motor, and a housing for accommodating the electric motor and the compression mechanism. The housing is formed such that the stator is fitted thereto. The housing has a plurality of thick portions and a plurality of thin portions. The center of the thickness of each thick portion is located outside of the center of the thickness of each thin portion with respect to a radial direction of the housing. As a result, even if the housing is deformed, the fixation of the stator to the housing is reliably maintained. Further, the weight of the electric compressor is reduced.
摘要:
Thermosetting resin compositions are excellent in balance among printability, tack properties, matting properties, electrical insulating properties and adhesion to objects. A thermosetting resin composition includes a thermosetting resin (A) and core-shell multilayer organic fine particles (B).
摘要:
An electrically-driven compressor including a housing, an electric motor, a compression mechanism, a cover member, a motor drive circuit, and a sealing member is disclosed. The electric motor is accommodated in the housing. The compression mechanism is accommodated in the housing and operated by the electric motor. The cover member is attached to the housing. The housing and the cover member form an accommodation portion including an accommodation space therein. The motor drive circuit is accommodated in the accommodation space and drives the electric motor. The sealing member is arranged between the housing and the cover member to seal the accommodation space. The sealing member includes an elastic seal portion that comes into close contact with the housing and the cover member. A core sustains the shape of the seal portion in conformance with the circumferential edge of the accommodation space. The core is formed so that at least a circumferential edge part of the core is in conformance with the circumferential edge of the accommodation space. The seal portion is formed integrally with the circumferential edge part of the shape sustaining member by depositing rubber material thereon.
摘要:
The invention provides a heat-curable resin composition comprising (A) a polyurethane having two or more carboxyl groups in one molecule, in particular a polyurethane having one or more carboxyl groups at a molecular terminal and (B) a heat-curable component, a cured product thereof, a solder resist and a protective film consisting of the cured product and a printed wiring board coated with the cured product. The polyurethane(A), preferably has a number average molecular weight of 500 to 100,000 and an acid value of 5 to 150 mgKOH/g. The heat-curable component (B) is preferably an epoxy resin. The heat-curable resin composition of the invention is excellent in adhesion with a substrate, low-warpage property, flexibility, resistance to moisture and heat, soldering heat resistance and resistance to tin plating.