Method for producing .alpha.-(p-isobutylphenyl)propionic acid or its
alkyl esters
    2.
    发明授权
    Method for producing .alpha.-(p-isobutylphenyl)propionic acid or its alkyl esters 失效
    α-(对异丁基苯基)丙酸或其烷基酯的制备方法

    公开(公告)号:US4694100A

    公开(公告)日:1987-09-15

    申请号:US753403

    申请日:1985-07-10

    摘要: A method for producing .alpha.-(p-isobutylphenyl)propionic acid or its alkyl esters which is characterized in that starting materials are inexpensive, processes are easy to be done and products are highly pure. The method comprises the steps of (I): catalytically cracking 1,1-bis(p-isobutylphenyl)ethane at temperatures in the range of 200.degree. to 650.degree. C. in the presence of a protonic acid catalyst and/or a solid acid catalyst to produce isobutylbenzene and p-isobutylstyrene; and (II): reacting said p-isobutylstyrene with carbon monoxide and water or alcohol at temperatures in the range of 40.degree. to 150.degree. C. in the presence of a metal complex carbonylation catalyst to produce .alpha.-(p-isobutylphenyl)propionic acid or its alkyl ester; or (III): reacting said p-isobutylstyrene with carbon monoxide and hydrogen at temperatures in the range of 40.degree. to 150.degree. C. in the presence of a metal complex carbonylation catalyst to produce .alpha.-(p-isobutylphenyl)propionaldehyde and then oxidizing said .alpha.-(p-isobutylphenyl)propionaldehyde to produce .alpha.-(p-isobutylphenyl)propionic acid. The recovered isobutylene is recycled to produce 1,1-bis(p-isobutylphenyl)ethane by reaction with acetaldehyde in the presence of sulfuric acid.

    摘要翻译: 一种生产α-(对异丁基苯基)丙酸或其烷基酯的方法,其特征在于起始材料便宜,方法易于进行,产物是高纯度的。 该方法包括以下步骤:(I):在质子酸催化剂和/或固体酸存在下,在200至650℃的温度范围内催化裂化1,1-双(对异丁基苯基)乙烷 催化剂生产异丁苯和对异丁基苯乙烯; 和(II):在金属络合物羰基化催化剂存在下,使所述对异丁基苯乙烯与一氧化碳和水或醇在40-150℃的温度下反应,得到α-(对异丁基苯基)丙酸 或其烷基酯; 或(III):在金属络合物羰基化催化剂存在下,使所述对异丁基苯乙烯与一氧化碳和氢气在40-150℃的温度下反应,生成α-(对异丁基苯基)丙醛,然后氧化 所述α-(对异丁基苯基)丙醛生成α-(对异丁基苯基)丙酸。 通过在硫酸存在下与乙醛反应,回收的异丁烯被再循环以产生1,1-双(对异丁基苯基)乙烷。

    Process for producing a solvent for use in microcapsule for
pressure-sensitive copying paper
    3.
    发明授权
    Process for producing a solvent for use in microcapsule for pressure-sensitive copying paper 失效
    用于生产用于压敏复印纸的微孔中的溶剂的方法

    公开(公告)号:US4039712A

    公开(公告)日:1977-08-02

    申请号:US228957

    申请日:1972-02-24

    申请人: Atsushi Sato

    发明人: Atsushi Sato

    摘要: A process for producing a solvent for use in microcapsules for pressure-sensitive copying paper which comprises hydrogenating a hydrocarbon mixture with a boiling range of 290.degree. - 400.degree. C, which is obtained as a by-product in the decomposition of petroleum etc. and is containing polycyclic aromatic hydrocarbon compounds, at a temperature within a range of 100.degree. - 400.degree. C and in the presence of a hydrogenating catalyst capable of catalyzing nuclear hydrogenation so as to hydrogenate the aromatic rings of the compounds which contain at least three aromatic rings and are principal components of said polycyclic hydrocarbon compounds, leaving at least two aromatic rings therein intact.

    Hydroentangled nonwoven fabric and method of producing the same
    4.
    发明授权
    Hydroentangled nonwoven fabric and method of producing the same 失效
    水刺无纺布及其制造方法

    公开(公告)号:US06063717A

    公开(公告)日:2000-05-16

    申请号:US849231

    申请日:1997-06-04

    IPC分类号: D04H13/00 B32B5/06

    摘要: A reinforced hydroentangled nonwoven fabric having small thickness and weight, draping characteristics and flexibility, and improved balance of longitudinal and transverse strength, and more particularly a thin, light-weight, reinforced, hydroentangled nonwoven fabric (9) obtained by entangling the fiber of a reinforcing support base (2) or the fiber of a fiber web laminated on the fiber of the support base (2) with the support base (2) and uniting them by ejecting high-pressure thin water jet streams (5a, 5b) against these materials, characterized in that the reinforcing support base (2) comprises a stretched unidirectionally oriented nonwoven fabric obtained by stretching a nonwoven fabric of long fiber, which is produced by spinning a thermoplastic resin, in the direction with the fiber oriented substantially in one direction, or stretched, crossed, laminated, nonwoven fabric obtained by cross-laminating the stretched unidirectionally oriented nonwoven fabric; and a method of producing the same.

    摘要翻译: PCT No.PCT / JP95 / 02059 Sec。 371日期:1997年6月4日 102(e)日期1997年6月4日PCT提交1995年10月6日PCT公布。 公开号WO97 / 13020 PCT 日期1997年04月10日一种具有小厚度和重量,悬垂性和柔韧性的增强水刺无纺布,并且改善纵横强度的平衡,更具体地,薄的轻质增强的水刺无纺布(9),其通过 通过支撑基座(2)将加强支撑基座(2)的纤维或纤维网的纤维缠绕在支撑基座(2)的纤维上,并通过喷射高压薄水喷射流 ,5b)抵抗这些材料,其特征在于,所述加强支撑基底(2)包括拉伸的单向取向的非织造布,其通过在纤维取向的方向上拉伸由热塑性树脂纺丝制成的长纤维无纺布而获得 基本上在一个方向上,或通过交联层压拉伸的单向取向无纺布而获得的拉伸,交叉,层压的非织造织物; 及其制造方法。

    Nonwoven fabric and method of making the same
    6.
    发明授权
    Nonwoven fabric and method of making the same 失效
    无纺布及其制作方法

    公开(公告)号:US5840633A

    公开(公告)日:1998-11-24

    申请号:US682535

    申请日:1996-09-17

    摘要: The invention provides a nonwoven fabric of stretched filaments of different kind polymers, having a strength equal to that of a woven fabric and features including an elongation, a uniformity, good feeling, a bulkiness and a thinness, characterized in that the nonwoven fabric is provided with stretched filament webs comprising long filaments formed out of a plural kinds of thermoplastic polymers of different properties, the long filaments as a whole being aligned in one direction, and a method for manufacturing the same. The invention provides also a nonwoven fabric of stretched filaments having a high strength as well as a high bulkiness and comprising different kind polymers which is provided with a first web layer of crimped filaments and a second web layer of substantially non-crimped, stretched long filaments, and a method for manufacturing the same.

    摘要翻译: PCT No.PCT / JP95 / 02376 Sec。 371日期1996年9月17日 102(e)日期1996年9月17日PCT提交1995年11月22日PCT公布。 第WO96 / 17121号公报 日期1996年6月6日本发明提供了不同种类的聚合物的拉伸长丝的非织造织物,其强度等于机织物的强度,其特征包括伸长率,均匀性,良好的感觉,蓬松性和薄度,其特征在于 非织造织物具有拉伸长丝网,其包括由多种不同性质的热塑性聚合物形成的长丝,长丝整体上沿一个方向排列,以及其制造方法。 本发明还提供了具有高强度和高蓬松度的拉伸长丝的非织造织物,并且包括不同种类的聚合物,其具有卷曲长丝的第一纤维网层和基本上非卷曲的长丝的第二纤维网层 及其制造方法。

    Electrical insulating oil and oil-filled electrical appliances
    9.
    发明授权
    Electrical insulating oil and oil-filled electrical appliances 失效
    电绝缘油和充油电器

    公开(公告)号:US4642730A

    公开(公告)日:1987-02-10

    申请号:US760402

    申请日:1985-07-30

    IPC分类号: H01B3/20 H01B3/22 H01G4/22

    CPC分类号: H01B3/22

    摘要: An improved electrical insulating oil and oil-filled electrical appliances impregnated therewith. The electrical insulating oil can be produced inexpensively but has excellent electrical characteristics and it comprises a fraction having boiling points in the range of 350.degree. to 450.degree. C. that is prepared by disproportionating diarylalkane or a hydrocarbon mixture mainly containing the same at temperatures in the range of 20.degree. to 500.degree. C. in the presence of a disproportionation catalyst, said diarylalkane having boiling points in the range of 260.degree. to 320.degree. C.

    摘要翻译: 改进的电绝缘油和浸油的电油器具。 电绝缘油可以廉价地生产,但是具有优异的电特性,并且它包括沸点在350-450℃范围内的馏分,其通过歧化二芳基烷烃或主要含有它们的烃混合物 在歧化催化剂存在下,在20〜500℃的范围内,所述二芳基烷烃的沸点在260〜320℃的范围内。