摘要:
A high-elasticity biodegradable polymer comprising PDC, which has excellent solubility in solvents and reactants, in their repeating unit structures is provided in an inexpensive manner.A polymer comprising a repeating unit represented by the following formula (I): wherein R1 and R2 each independently represent a divalent hydrocarbon residue with no active hydrogens in its structure and optionally containing a heteroatom; X represents O or NH; x represents an integer of at least 1; and m and n represent 0 or 1; and a process for their production.
摘要:
The invention provides biodegradable polyesters, polyurethanes, comprising 3-carboxymuconolactone as a structural unit, 3-carboxymuconolactone esters and a process for their production.Polyesters comprising a repeating unit represented by the following formula (I): [wherein R represents a hydrocarbon-based divalent residue which, in the structure, optionally contains a heteroatom without an active hydrogen], polyurethanes comprising the polyester structure; 3-carboxymuconolactone esters; and a process for their production.
摘要:
To provide an industrial purification method of PDC obtained by fermentative production.A method of purifying 2-pyrone-4,6-dicarboxylic acid which comprises including a salt of monovalent to tetravalent cations in a fermentation liquid containing microbially-produced 2-pyrone-4,6-dicarboxylic acid; and a method of purifying 2-pyrone-4,6-dicarboxylic acid which method comprises extracting 2-pyrone-4,6-dicarboxylic acid from a fermentation liquid containing microbially-produced 2-pyrone-4,6-dicarboxylic acid without forming 2-pyrone-4,6-dicarboxylate.
摘要:
An in-liquid plasma electrode 1 according to the present invention is an in-liquid plasma electrode for generating plasma in a liquid L and has a conductive member 11 having an electric discharge end surface 111 in contact with the liquid L, and an insulating member 16 covering an outer periphery of the conductive member 11 at least except the electric discharge end surface 111. Preferably, d and x satisfy −2d≦x≦2d, where d is a length of a minor axis of the cross section when a conductive end portion 110 of the conductive member 11 having the electric discharge end surface 11 has a roughly circular cross section, or d is a length of a short side of the cross section when the conductive end portion 110 has a roughly rectangular cross section, and x is a distance from a reference plane 161 to a plane containing the electric discharge end surface 111 when the reference plane 161 is an end surface 161 of the insulating member 16 in roughly parallel with the electric discharge end surface 111. Owing to this construction, it is possible to provide an in-liquid plasma electrode which can simply generate plasma in a wide variety of liquids including a conductive liquid such as water and alcohol, and furthermore an in-liquid plasma generating apparatus having this electrode, and an in-liquid plasma generating method using this electrode.
摘要翻译:根据本发明的液晶内等离子体电极1是用于在液体L中产生等离子体的液晶内等离子体电极,并且具有导电构件11,导电构件11具有与液体L接触的放电端面111,绝缘构件 除了放电端面111之外,至少覆盖导电构件11的外周。优选地,d和x满足-2d <= x <= 2d,其中d是横截面的短轴的长度,当a 具有放电端面11的导电构件11的导电端部110具有大致圆形的横截面,或d是当导电端部110具有大致矩形截面时的横截面的短边的长度,以及 当参考平面161是绝缘构件16的与放电端表面大致平行的端面161时,x是从参考平面161到包含放电端面111的平面的距离 由于这种结构,可以提供一种液体等离子体电极,其可以简单地在包括诸如水和醇的导电液体的各种液体中产生等离子体,此外还提供了一种液体内等离子体产生装置,其具有 该电极和使用该电极的液体内等离子体生成方法。
摘要:
An in-liquid plasma electrode according to the present invention is an in-liquid plasma electrode for generating plasma in a liquid and has an electrically conductive member having an electric discharge end surface in contact with the liquid, and an electrically insulating member covering an outer periphery of the conductive member at least except the electric discharge end surface. Preferably, d and x satisfy −2d≦x≦2d, where d is a length of a minor axis of the cross section when a conductive end portion of the electrically conductive member having the electric discharge end surface has an approximately circular cross section, or d is a length of a short side of the cross section when the conductive end portion has an approximately rectangular cross section, and x is a distance from a reference plane to a plane containing the electric discharge end surface when the reference plane is an end surface of the electrically insulating member that is approximately parallel with the electric discharge end surface. Owing to this construction, it is possible to provide an in-liquid plasma electrode which can simply generate plasma in a wide variety of liquids including a conductive liquid such as water and alcohol, and furthermore an in-liquid plasma generating apparatus having this electrode, and an in-liquid plasma generating method using this electrode.
摘要:
A compressor has a swash plate and shoes. Surfaces of the swash plate slides on flat surfaces of the shoes. A sliding film is formed on each of the swash plate surfaces. The sliding films are formed of a polyamide-imide resin that contains at least solid lubricant. The polyamide-amide resin has a glass transition temperature of 270° C., a tensile strength at room temperature of 200 MPa, or more imide groups than amide groups. When a base portion of the swash plate is made of an aluminum-based metal, the sliding films are formed on the base portion with middle layers made of anodized aluminum in between.
摘要:
The process for producing an amorphous carbon film of the present invention is a process for producing an amorphous carbon film comprising contacting a surface of a substrate S with bubbles B which have been formed in a liquid L containing an organic compound and inside which plasma has been generated, so as to form an amorphous carbon film on the surface of the substrate S, and the liquid L contains one or more selected from phenols and alcohols having a carbon number of from 1 to 12. According to the present invention, a hard amorphous carbon film can be formed easily.
摘要:
A swash plate is operably connected through a lug plate and a hinge mechanism to a drive shaft, and slidably retained on an end part of each piston through a pair of front and rear shoes. A rotational motion of the swash plate following rotation of the drive shaft is converted through the shoes into a reciprocating motion of each piston. A thermoplastic polyimide coating is formed on the swash plate and the shoes as sliding components of a compressor. The thermoplastic polyimide coating may contain a solid lubricant. For the solid lubricant, for example, polytetrafluoroethylene is used. Thus, it is possible to obtain a compressor, which includes the sliding components having improved sliding characteristics, and is manufactured relatively easily.
摘要:
A compressor includes a swash plate, and a shoe connected to an outer periphery of the swash plate. A surface of the swash plate slides upon a flat surface of the shoe. A sliding film is applied to the surface of the swash plate. The sliding film is formed of binder resin which contains a solid lubricant and titanium oxide powder. This allows the surface of the swash plate and the flat surface of the shoe to smoothly slide upon each other.
摘要:
A slide member of the present invention is a slide member having a substrate (10) made of a metal; and a sliding layer (20) of a resinous powder being sintered integrally on at least one of the surfaces of the substrate (10), and is characterized in that it includes a solid-lubricant powder in the sliding layer (20). Further, it can be one having an intermediate layer, which intervenes between the substrate (10) and the sliding layer (20), and which is composed of a metal differing from that of the substrate (10). The slide member of the present invention is such that the adhesiveness is high, and has good sliding characteristics. Moreover, a production process of the present invention for a slide member is characterized in that it has: a laminating step of forming a powdery sliding layer, which is composed of a resinous powder and a solid-lubricant powder at least, on at least one of the surfaces of a substrate layer, which is composed of a metal; and a sintering step of sintering the substrate layer with the powdery sliding layer integrally. In accordance with this production process, it is possible to make a slide member, which has the substrate (10) and the sliding layer (20) at least. In accordance with the production process of the present invention for a slide member, it is possible to produce a slide member whose adhesiveness is high and which has good sliding characteristics.