Process for preparing .gamma.-lactone derivatives
    12.
    发明授权
    Process for preparing .gamma.-lactone derivatives 失效
    制备{65-内酯衍生物的方法

    公开(公告)号:US3975381A

    公开(公告)日:1976-08-17

    申请号:US536781

    申请日:1974-12-27

    摘要: A process for preparing a .gamma.-lactone derivative having the formula (I) ##EQU1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6, which may be the same or different, each represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms or a phenyl group which may be substituted with a halogen atom, and R.sup.1 and R.sup.2, and R.sup.5 and R.sup.6 may, when taken together with the carbon atom to which they are attached, form a cycloalkyl group having 4 to 7 carbon atoms, and R.sup.7 represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 4 to 6 carbon atoms or a phenyl group which may be substituted with an alkyl group having 1 to 3 carbon atoms, which comprises reacting an allylic diol with an orthocarboxylic acid ester in the presence of an acidic catalyst.

    摘要翻译: 制备具有式(I)的γ-内酯衍生物的方法R7R3R4R5 ||| ANGLE C = C-C-C-R6(I)|| R8CHO | ANGLE R7C PARALLEL O其中R1,R2,R3,R4, R 5和R 6可以相同或不同,各自表示氢原子,具有1〜4个碳原子的烷基或可被卤素原子取代的苯基,R 1和R 2以及R 5和R 6可以 当与其连接的碳原子一起形成具有4至7个碳原子的环烷基,并且R 7表示氢原子,具有1至8个碳原子的烷基,具有4至6个碳原子的环烷基 原子或可以被具有1至3个碳原子的烷基取代的苯基,其包括在酸性催化剂存在下使烯丙基二醇与原酸酯反应。

    Plastic container closure having pilferproof characteristics
    15.
    发明授权
    Plastic container closure having pilferproof characteristics 失效
    塑料容器盖具有防盗特性

    公开(公告)号:US4565295A

    公开(公告)日:1986-01-21

    申请号:US681480

    申请日:1984-12-14

    IPC分类号: B65D41/34

    摘要: A pilferproof plastic closure comprising a top panel wall and a cylindrical skirt wall extending downwardly from the peripheral edge of the top panel wall. A circumferential weakening line extending circumferentially is formed in the skirt wall, and the skirt wall is divided into a main portion above the weakening line and a pilferproof bottom portion beneath it. An internal thread to be screwably fitted with an external thread formed on the mouth-neck portion of a container is formed on the inner surface of the main portion, and a plurality of radially inwardly projecting and circumferentially spaced engaging flaps are formed on the inner surface of the pilferproof bottom portion. An axial breaking line is formed in the pilferproof bottom portion which extends downwardly from the upper end of the pilferproof bottom portion but is non-existent in at least a greater portion of the lower part of the pilferproof bottom portion. At least a greater portion of the base edge of each of the engaging flaps is positioned in the aforesaid lower part where the axial breaking line does not exist.

    摘要翻译: 一种防盗塑料封盖,包括顶板壁和从顶板壁的周缘向下延伸的圆筒形裙壁。 在裙部壁上形成有周向延伸的周向的弱化线,并且裙壁被分为弱化线上方的主要部分和其下方的防盗底部。 在主体的内表面上形成有可旋拧地装配有形成在容器的口颈部上的外螺纹的内螺纹,并且在内表面上形成有多个径向向内突出的周向隔开的接合翼片 的防盗底部。 在防盗底部形成有从防盗底部的上端向下延伸但在防盗底部的下部的至少较大部分中不存在的断裂线。 每个接合翼片的至少大部分的基部边缘定位在不存在轴向断裂线的上述下部中。

    Pilfer-proof plastic closure for containers
    16.
    发明授权
    Pilfer-proof plastic closure for containers 失效
    防盗塑料封闭容器

    公开(公告)号:US4520939A

    公开(公告)日:1985-06-04

    申请号:US581845

    申请日:1984-02-21

    IPC分类号: B65D41/34

    摘要: A pilfer-proof plastic closure comprising a top panel wall and a cylindrical skirt wall extending downwardly from the peripheral edge of the top panel wall. The skirt wall has formed therein a circumferentially extending breakable line dividing the skirt wall into a main portion above the breakable line and a pilfer-proof bottom portion below it. The main portion has formed on its inner surface an internal thread and the pilfer-proof bottom portion has formed on its inner surface a plurality of radially inwardly projecting engaging flaps at circumferentially spaced positions. Each of said engaging flaps has a first portion extending from the inner surface of the pilfer-proof bottom portion tiltedly in a direction opposite to the direction of rotation of the closure at the time of mounting it on the mouth-neck portion of a container and a second portion bent with respect to the first portion and further extending from the end of the first portion. The first portion forms an angle .alpha. smaller than 90 degrees and the second portion forms an angle .beta. larger than the angle .alpha., both with respect to the tangent of the inner surface of the pilfer-proof bottom portion at the base edge of the engaging flap.

    摘要翻译: 一种防盗塑料封盖,包括顶板壁和从顶板壁的周边边缘向下延伸的圆柱形裙壁。 裙壁在其中形成有将裙壁分隔成可破坏线上方的主要部分的周向延伸的可破坏的线,并且在其下方具有防盗底部。 主要部分在其内表面上形成内螺纹,并且防盗底部在其内表面上形成有沿周向间隔位置的多个径向向内突出的接合翼片。 每个所述接合翼片具有第一部分,该第一部分从防盗底部的内表面沿与盖子的旋转方向相反的方向倾斜,在将其安装在容器的口颈部分上时, 第二部分相对于第一部分弯曲并且从第一部分的端部进一步延伸。 第一部分形成小于90度的角度α,并且第二部分形成大于角度α的角度β,两者相对于接合片的基部边缘处的防盗底部的内表面的切线 。

    Bottle for carbonated drink
    17.
    发明授权
    Bottle for carbonated drink 失效
    碳酸饮料瓶

    公开(公告)号:US4421804A

    公开(公告)日:1983-12-20

    申请号:US301412

    申请日:1981-09-11

    摘要: Disclosed is a bottle for a carbonated drink, which is formed by biaxial draw-blow molding of a polyester containing a surface active agent and being composed mainly of ethylene terephthalate units, wherein at least the barrel wall portion of the bottle is molecularly oriented biaxially so that the density is at least 1.34 g/cm.sup.3 as measured at 20.degree. C., and the surface active agent is distributed in the surface of the barrel wall portion so that the contact angle of the surface of the barrel wall portion to water is not larger than 76.degree..In this bottle, the speed of transfer of carbon dioxide gas from the liquid phase of the drink to the gas phase at the time of opening the bottle is controlled to a very low level. Accordingly, occurrence of the cap missile phenomenon at the time of removing the cap from the bottle or reduction of the carbon dioxide content in the drink at the time of repeating sealing and opening of the bottle can effectively be prevented.

    摘要翻译: 公开了一种碳酸饮料瓶,其通过双轴拉伸吹塑成型含有表面活性剂的聚酯而形成,主要由对苯二甲酸乙二醇酯单元组成,其中瓶的至少筒壁部分分子取向为双轴向 密度在20℃下测定为至少1.34g / cm 3,表面活性剂分布在筒壁部分的表面,使得筒​​壁部分的表面与水的接触角不是 大于76度。 在该瓶中,将饮料液相中的二氧化碳气体向打开瓶子时的气相转移速度控制在非常低的水平。 因此,可以有效地防止在重复密封和打开瓶子时从瓶子上取下帽子或者饮料中二氧化碳含量的降低时发生帽子导弹现象。

    Peelable bonded structures and process for preparing same
    20.
    发明授权
    Peelable bonded structures and process for preparing same 失效
    可剥离的粘结结构及其制备方法

    公开(公告)号:US4269321A

    公开(公告)日:1981-05-26

    申请号:US964188

    申请日:1978-11-28

    摘要: A peelable bonded structure having a peel strength of 0.05 to 5 kg/cm comprises a plurality of articles, at least one of which is made of metal, bonded together through a composite coating layer. The composite coating layer is composed of adjacent first and second coating layers at least one of which comprises (A) a modified olefin resin having a carbonyl group concentration of 0.01 to 200 milliequivalents per 100 g of the olefin resin and (B) a coating film-forming base resin at an (A)/(B) weight ratio of from 0.2/99.8 to 40/60 and has a multi-layer distribution structure having resin concentration gradients in the thickness direction such that the modified olefin resin (A) is distributed predominantly in the portion contiguous to the interface between the two coating layers and the base resin (B) is distributed predominantly in the opposite portion.

    摘要翻译: 剥离强度为0.05〜5kg / cm的剥离性结合体包含多个制品,其中至少一个由金属制成,通过复合涂层粘结在一起。 复合涂层由相邻的第一和第二涂层组成,其中至少一个包括(A)每100g烯烃树脂具有0.01至200毫当量的羰基浓度的改性烯烃树脂和(B)涂膜 (A)/(B)重量比为0.2 / 99.8至40/60的基体树脂,并且具有在厚度方向上具有树脂浓度梯度的多层分布结构,使得改性烯烃树脂(A)为 主要分布在与两个涂层和基础树脂(B)之间的界面相邻的部分中主要分布在相对的部分中。