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    • 52. 发明授权
    • Process for stabilizing oxymethylene copolymer
    • 稳定甲醛共聚物的方法
    • US06365655B1
    • 2002-04-02
    • US09367288
    • 1999-08-16
    • Noritaka TanimuraHajime NagaharaTadashi TanakaSatoru Ohtsuki
    • Noritaka TanimuraHajime NagaharaTadashi TanakaSatoru Ohtsuki
    • C08K517
    • C08G2/28C08K5/19C08L59/04
    • Disclosed is a method for stabilizing a crude oxy-methylene copolymer having thermally unstable terminal groups, which comprises subjecting a crude oxymethylene copolymer to heat treatment in the presence of at least one quaternary ammonium compound represented by the following formula (1): [R1R2R3R4N+]nX−n  (1) wherein each of R1, R2, R3 and R4 independently represents an unsubstituted or substituted alkyl group, an aryl group, an aralkyl group which is an unsubstituted or substituted alkyl group substituted with at least one aryl group, or an alkylaryl group which is an aryl group substituted with at least one unsubstituted or substituted alkyl group; n is an integer of from 1 to 3; and X is a hydroxyl group or an acid residue. In this method, even by the addition of a very small amount of the quaternary ammonium compound, the decomposition rate of the unstable terminal groups can be remarkably increased, thereby facilitating the stabilization of the crude copolymer. Therefore, by this method, it has become possible to easily produce an excellent oxymethylene copolymer within a short period of time, which has substantially no unstable terminal groups and, therefore, has excellent thermal stability and color tone.
    • 本发明公开了一种稳定具有热不稳定端基的粗氧亚甲基共聚物的方法,其包括在至少一种由下式(1)表示的季铵化合物存在下使粗甲醛共聚物进行热处理:其中, R1,R2,R3和R4独立地表示未取代或取代的烷基,芳基,被至少一个芳基取代的未取代或取代的烷基的芳烷基或作为被至少一个芳基取代的芳基的烷基芳基 至少一个未取代或取代的烷基; n为1〜3的整数, X为羟基或酸残基。 在该方法中,即使加入极少量的季铵化合物,也能够显着提高不稳定末端基的分解速度,从而有助于粗共聚物的稳定化。 因此,通过该方法,可以在短时间内容易地制造优异的甲醛共聚物,其基本上不具有不稳定的端基,因此具有优异的热稳定性和色调。
    • 53. 发明授权
    • Automatic photofinishing apparatus
    • 自动洗印装置
    • US5436688A
    • 1995-07-25
    • US141531
    • 1993-10-27
    • Tadashi Tanaka
    • Tadashi Tanaka
    • G03B27/46G03B27/32G03B27/62G03D3/00G03D13/00G03D3/08
    • G03B27/32
    • An automatic photofinishing apparatus has a film processing section, which processes exposed photographic film, and includes a train of processing baths. The film is passed successively through processing solutions respectively within the processing baths. A printer section, downstream from the film processing section, prints an imaging frame of the film to photographic paper immediately after processing of the film. A paper processing section processes the paper after printing, and includes a train of processing baths. The paper is passed successively through processing solutions respectively within the processing baths, so as to produce photographic prints. A film path member is disposed between the film processing section and the printer section, and constructed to twist the film during an exit from the film processing section in accordance with a direction of the film processing section relative to the paper processing section, and to bring the film in parallel with the paper in the printer section.
    • 自动洗印装置具有处理曝光的照相胶片的胶片处理部分,并且包括一列处理槽。 该胶片分别通过加工液中的处理液依次通过。 在胶片处理部分的下游的打印机部分,在胶片处理之后立即将胶片的成像框打印到相纸上。 纸张处理部在打印之后处理纸张,并且包括一列处理槽。 纸张分别通过加工液中的处理液依次通过,以便制造照相印刷品。 薄膜通道构件设置在薄膜处理部分和打印机部分之间,并被构造成根据薄膜处理部分相对于纸张处理部分的方向在胶片处理部分出射期间扭曲胶片,并带来 该胶片与打印机部分中的纸张并行。
    • 56. 发明授权
    • Sliding material and method of manufacturing the same
    • 滑动材料及其制造方法
    • US5091098A
    • 1992-02-25
    • US660823
    • 1991-02-26
    • Tadashi TanakaHidehiko TamuraKiyohide UenakaShigemasa Hakakoshi
    • Tadashi TanakaHidehiko TamuraKiyohide UenakaShigemasa Hakakoshi
    • F16C33/10C08J5/16C08K3/08C08L29/12C09D127/18C10M111/04C10N10/00C10N10/08C10N10/12C10N20/06C10N30/06C10N40/02C10N50/08F16C33/20
    • F16C33/201C08K3/08C09D127/18C08L29/12
    • A sliding material comprising a backing metal having a porous metal layer formed on the surface thereof and a composition for impregnation coating impregnated and coated to the pores and the surface thereof, wherein the composition for impregnation coating is a composition composed of (a) 0.5-30 vol. % of at least one material selected from a group of resins composed of PFA, EPE, and FEP, 5-30 vol % of metal lead having a relative surface area of 1,000-8,500 cm.sup.2 /g in an average particle size, and the balance composed of PTFE, a total of the respective components other than the PTFE is 5.5-50 vol %, a sliding material comprising a backing metal having porous metal layer formed on the surface thereof and a composition for impregnation coating impregnated and coated to the pores and the surface thereof composed of 0.5-30 vol % of at least one material selected from resins composed of PFA, EPE, and FEP, 5-30 vol % of metal lead having a relative surface area of 1,000-8,500 cm.sup.2 /g in an average particle size, 0.5-30 vol % of at least one material selected from a filler composed of solid lubricant metal oxide, metal fluoride, graphite, a fiber selected from a ceramic of carbon fiber, glass fiber, and SiC, and the balance composed of PTFE, the respective components other than the PTFE being 6-50 vol %, and a method of manufacturing a sliding material comprising the steps of impregnating and covering the above composition for impregnation coating (a) or (b) to the pores and the surface thereof defined in the porous metal layer formed on the surface of a backing metal, and thereafter baking the backing metal with the above composition for impregnation coating (a) or (b) in a neutral atmosphere or in a reducing atmosphere.
    • 一种滑动材料,其包含在其表面上形成有多孔金属层的背衬金属和浸渍涂布在孔及其表面上的浸渍涂料组合物,其中浸渍涂层用组合物为(a)0.5- 30卷 选自由PFA,EPE和FEP组成的一组树脂中的至少一种材料的至少一种,5-30体积%的平均粒径的相对表面积为1,000-8,500cm2 / g的金属铅,余量 由PTFE构成的除了PTFE以外的各成分的总量为5.5〜50体积%,包含在其表面形成有多孔金属层的背衬金属的滑动材料和浸渍并涂布在孔上的浸渍涂料组合物, 其表面由0.5-30体积%的选自由PFA,EPE和FEP组成的树脂中的至少一种材料组成,5-30体积%的平均相对表面积为1000-8,500厘米2 /克的金属铅 粒径为0.5-30体积%的选自由固体润滑剂金属氧化物,金属氟化物,石墨,选自碳纤维陶瓷,玻璃纤维和SiC的纤维构成的填料中的至少一种材料,余量由 PTFE,除了PTFE贝氏体之外的各个组分 g的6-50体积%,以及制造滑动材料的方法,包括以下步骤:将上述用于浸渍涂料(a)或(b)的组合物浸渍并覆盖在形成于多孔金属层上的多孔金属层中限定的孔及其表面上 背衬金属的表面,然后在中性气氛或还原气氛中用上述用于浸渍涂层(a)或(b)的组合物烘烤背衬金属。