2,2-difluoropropionic acid derivatives
    1.
    发明授权
    2,2-difluoropropionic acid derivatives 失效
    2,2-二氟丙酸衍生物

    公开(公告)号:US4719052A

    公开(公告)日:1988-01-12

    申请号:US684344

    申请日:1984-12-20

    IPC分类号: C07C53/00 C07C51/58 C07C53/18

    CPC分类号: C07C51/58

    摘要: 2,2,3-trifluoropropionyl fluoride is prepared by opening the ring of tetrafluorooxetane in the presence of a catalyst. Analogously, a novel 2,2-difluoropropionic acid derivative of the formula:XCH.sub.2 CF.sub.2 COY (I)wherein X is chlorine, bromine, iodine, a group of the formula:R.sub.1 O-- (II)orR.sub.2 COO-- (III)wherein R.sub.1 R.sub.2 are each an aliphaic or halogenated aliphatic hydrocarbon group having 1 to 8 carbon atoms or an aromatic hydrocarbon group having 6 to 8 carbon atoms optionally bearing at least one substituent, or a group of the formula:X'CH.sub.2 CF.sub.2 CF.sub.2 O-- (IV)wherein X' is fluorine, chlorine, bromine, iodine, the group of the formula: R.sub.1 O--or R.sub.2 COO--; and Y is fluorine or a group of the formula:--OR.sub.3 (V)wherein R.sub.3 is an aliphatic or halogenated aliphatic hydrocarbon group having 1 to 8 carbon atoms except a perfluorohydrocarbon group or an aromatic hydrocarbon group having 6 to 8 carbon atoms optionally bearing at least one substituent or of the formula :--OCH.sub.2 R.sub.f (V')wherein R.sub.f is an aliphatic perfluorohydrocarbon having 1 to 7 carbon atoms is prepared.

    Novel fluorine-containing polyaminoamide and preparation thereof from
fluorooxetane and polyamine
    2.
    发明授权
    Novel fluorine-containing polyaminoamide and preparation thereof from fluorooxetane and polyamine 失效
    新型含氟聚氨基酰胺及其由氟氧杂环丁烷和多胺的制备

    公开(公告)号:US4683289A

    公开(公告)日:1987-07-28

    申请号:US786682

    申请日:1985-10-11

    IPC分类号: C08G69/00 C08G73/02 C08G69/42

    CPC分类号: C08G73/028 C08G69/00

    摘要: A novel polyaminoamide of the formula: ##STR1## wherein R.sub.m and R.sub.m ' are, the same or different, a hydrogen atom or a monovalent organic group and A.sub.m is a divalent organic group, or R.sub.m and/or R.sub.m ' form a cyclic group together with A.sub.m and the nitrogen atom to which they are bonded. m changes from 1 to p (where p is a positive integer) and n.sub.m is a positive integer, which can be prepared by reacting a 2,2,3,3-tetrafluorooxetane of the formula: ##STR2## with m kind(s) of diamine(s) of the formula: ##STR3## wherein m is the same as defined above.

    摘要翻译: 一种下式的新型聚氨基酰胺:其中Rm和Rm'相同或不同,为氢原子或一价有机基团,Am为二价有机基团,或Rm和/或Rm'形成 环状基团与Am和它们所键合的氮原子一起。 m从1变化到p(其中p是正整数),nm是正整数,其可以通过使下式的2,2,3,3-四氟氧杂环丁烷与式(II)反应来制备: (III)的二胺的一个或多个,其中m与上述定义相同。

    Telescopic front suspension
    4.
    发明授权
    Telescopic front suspension 失效
    伸缩前悬挂

    公开(公告)号:US4609202A

    公开(公告)日:1986-09-02

    申请号:US616745

    申请日:1984-06-04

    IPC分类号: B62K25/08 F16F9/16 B62K11/00

    CPC分类号: B62K25/08

    摘要: A telescopic front suspension including a bottom case (9; 31; 83; 111; 151) supporting a front wheel of a vehicle, and a fork pipe (8; 32; 84; 112; 152) slidably fitted in the bottom case. The telescopic front suspension has a restriction mechanism (18a; 19; 47, 48, 70, 71, 135, 136; 178, 179) for restricting, at a predetermined degree of contraction between the bottom case and the fork pipe, the relative expansion between the bottom case and the fork pipe.

    摘要翻译: 一种伸缩式前悬架,包括支撑车辆前轮的底壳(9; 31; 83; 111; 151)和可滑动地装配在底壳中的叉管(8; 32; 84; 112; 152)。 所述伸缩式前悬架具有限制机构(18a; 19; 47,48,70,71,135,136,178,179),用于在所述底壳和所述叉管之间以预定的收缩程度限制相对膨胀 在底壳和叉管之间。

    Fluorovinyl ether having terminal oxygen-containing functional group and process for preparing the same
    5.
    发明授权
    Fluorovinyl ether having terminal oxygen-containing functional group and process for preparing the same 失效
    具有末端含氧官能团的氟乙烯基醚及其制备方法

    公开(公告)号:US06187948B1

    公开(公告)日:2001-02-13

    申请号:US09115755

    申请日:1998-07-15

    IPC分类号: C07C6930

    CPC分类号: C07C69/63

    摘要: A fluorovinyl ether of the formula: R1CO(OCH2CF2CO)k—(OCH2CF2CF2)m[OCF(CF3)CF2]nOCF═CF2 wherein R1 is an C1-C8 aliphatic or halogenated C1-C8 aliphatic group or an aromatic group which may optionally have at least one substituent, k is an integer of at least 0, m is an integer of at least 1, and n is an integer of at least 0.

    摘要翻译: 具有下式的氟代乙烯基醚:R 1 CO(OCH 2 CF 2 CO)k - (OCH 2 CF 2 CF 2)m [OCF(CF 3)CF 2] n OCF = CF 2其中R 1是C 1 -C 8脂族或卤代C 1 -C 8脂族基团或芳族基团, 至少一个取代基,k为至少为0的整数,m为至少为1的整数,n为至少为0的整数。

    Apparatus for preventing defective packing of cigarets
    6.
    发明授权
    Apparatus for preventing defective packing of cigarets 失效
    防止卷烟不合格的装置

    公开(公告)号:US3995497A

    公开(公告)日:1976-12-07

    申请号:US641233

    申请日:1975-12-16

    申请人: Yoshio Negishi

    发明人: Yoshio Negishi

    IPC分类号: B65B19/30 B65B63/00

    CPC分类号: B65B19/30

    摘要: An apparatus for preventing defective packing of cigarets wherein a presser which moves a plurality of cigarets arranged on two or three steps so as to be packed at a fixed velocity in the lengthwise direction of the cigarets along a frame is provided, a plurality of contact arms opposed to the respective cigarets arranged on the uppermost step are respectively independently rotatably supported on a shaft arranged above and at right angles with the frame, each contact arm is fitted with a shielding plate at the upper end and with a roller at the lower end so as to be suspended by the self-weight of the roller and to be pressed to rotate by the cigaret on the upper step with which it contacts, on the other hand, a sensing lever rotated by a supporting shaft is projected at right angles with the advancing direction of the cigarets on the side of the lower step of the cigarets so as to rotate clockwise and anticlockwise against a spring and to be pressed to rotate by the side of the cigarets with which it contacts and a shielding plate is fitted to the supporting shaft so as to normally intercept a beam from a projector and to open the beam when rotated.

    摘要翻译: 一种用于防止香烟不良包装的装置,其特征在于,设置有沿两个或三个台阶移动多个香烟以沿着沿着框架的长度方向固定的速度包装的按压器的多个接触臂 相对于布置在最上部的各个香烟分别独立地可旋转地支撑在布置在框架上方并与之成直角的轴上,每个接触臂在上端装配有屏蔽板,并在下端装有一个辊子 由于辊子的自重悬挂,并且在与其接触的上部台阶上被卷烟按压以旋转,另一方面,由支撑轴旋转的感测杆与 在香烟的下部一侧的香烟的前进方向,以顺时针方向和逆时针方向相对于弹簧旋转并被雪茄的一侧按压以旋转 它与其接触并且屏蔽板被安装到支撑轴上,以便正常地拦截来自投影仪的光束并且在旋转时打开光束。

    Silicon-containing organic fluoropolymers and use of the same
    7.
    发明授权
    Silicon-containing organic fluoropolymers and use of the same 有权
    含硅有机含氟聚合物及其用途

    公开(公告)号:US06183872B2

    公开(公告)日:2001-02-06

    申请号:US09011579

    申请日:1998-09-03

    IPC分类号: B32B1710

    摘要: Novel silicon-containing organic fluoropolymers which are appliable to materials over a wide range and which have excellent antifouling property. The silicon-containing organic fluoropolymer of the invention is represented by the general formula and has a number average molecular weight of from 5×102 to 1×105: wherein Rf represents perfluoroalkyl; Z represents fluoro or trifluoromethyl; a, b, c, d and e each independently represent 0 or an integer of 1 or above, provided that a+b+c+d+e is not less than 1 and the order of the repeating units parenthesized by subscripts a, b, c, d and e occurring in the formula is not limited to that shown; Y represents hydrogen or alkyl containing 1 to 4 carbon atoms; X represents hydrogen, bromo or iodo; R1 represents hydroxy or a hydrolyzable substituent group; R2 represents hydrogen or a monovalent hydrocarbon group; 1 represents 0, 1 or 2; m represents 1, 2 or 3; and n represents an integer of 2 or above.

    摘要翻译: 新型含硅有机含氟聚合物,适用于广泛范围的材料,具有优异的防污性能。 本发明的含硅有机含氟聚合物由通式表示,数均分子量为5×102〜1×105,式中Rf表示全氟烷基; Z表示氟或三氟甲基; a,b,c,d和e各自独立地表示0或1以上的整数,条件是a + b + c + d + e不小于1,并且由下标a,b括号的重复单元的顺序 ,c,d和e不限于所示; Y表示氢或含有1至4个碳原子的烷基; X表示氢,溴或碘; R1表示羟基或可水解取代基; R2表示氢或一价烃基; 1表示0,1或2; m表示1,2或3; n表示2以上的整数。

    Width-variable mold device
    8.
    发明授权
    Width-variable mold device 失效
    宽度可变模具装置

    公开(公告)号:US5146975A

    公开(公告)日:1992-09-15

    申请号:US706968

    申请日:1991-05-29

    申请人: Yoshio Negishi

    发明人: Yoshio Negishi

    IPC分类号: B22D11/04 B22D11/05

    CPC分类号: B22D11/05

    摘要: This invention discloses a width-variable mold device to be used by placing a feed device for moving minor side members toward a movable direction and by varying steplessly the width of the mold within a certain range by means of the operation of the feed device, in a mold device formed in an approximately rectangular shape by both two mutually opposed major side members having slightly curved opposed surfaces so that their opposed interval may reach its maximum at the center portion and its minimum at both ends and two opposed minor side members bringing both side ends into contact with the opposed surfaces of the major side members and placing between the major side members, wherein the major side members and the minor side members are equipped with their water cooled jackets at their outside, each of the major side members is suspended and supported to the support tables at both sides so as to move each of the major side members toward the direction where their opposed interval varies, and at the same time, each of the minor side members is suspended and supported to the upper portions of the major side members so as to move each of the minor side members toward the direction where their opposed interval varies.

    Corrosion-resistant motor casing
    9.
    发明授权
    Corrosion-resistant motor casing 失效
    耐腐蚀电机外壳

    公开(公告)号:US4700093A

    公开(公告)日:1987-10-13

    申请号:US792683

    申请日:1985-10-29

    申请人: Yoshio Negishi

    发明人: Yoshio Negishi

    CPC分类号: H02K5/02 H02K5/12

    摘要: A corrosion-resistant electric motor casing comprises a substantially cylindrical yoke and barrel, and a pair of brackets fixed to and closing the axially opposite ends of the yoke and barrel. The yoke and barrel comprises a first member substantially in the form of a hollow cylinder made of a material which is sufficiently ferromagnetic to serve as a motor yoke, and a second member in the form of a pipe of aluminmum fitted over the first member and covering the outer peripheral surface thereof. The motor casing is made highly resistant to corrosion without involving an increase in the weight and cost thereof.

    摘要翻译: 耐腐蚀电动机壳体包括基本上圆柱形的轭和筒,以及固定到轭和筒的轴向相对端并闭合的一对支架。 轭和桶包括基本上为中空圆筒形式的第一构件,其由充分铁磁性的材料制成,用作电动机轭,以及安装在第一构件上的铝制管形式的第二构件和覆盖物 其外周面。 电动机壳体制造高度耐腐蚀,而不涉及其重量和成本的增加。