Solution polymerization
    1.
    发明授权
    Solution polymerization 失效
    溶液聚合

    公开(公告)号:US4503204A

    公开(公告)日:1985-03-05

    申请号:US466399

    申请日:1983-02-15

    摘要: A composition useful as a catalyst in solution polymerization comprises (1) a barium, calcium and/or strontium alcoholate, (2) an organoaluminum compound and (3) an organomagnesium compound. (2) and (3) may be used as a complex with (1). The compositions can be used to polymerize ethylenically unsaturated monomers like butadiene, butadiene and styrene, and isoprene and heterocyclic monomers like oxiranes, thiiranes, siloxanes, thiatanes and lactams. The catalyst composition can produce polybutadienes and butadiene-styrene copolymers having a trans-1,4 content as high as 90%. The non-terminating features of the polymerization of this invention permit the preparation of functionally terminated butadiene based polymers and block polymers containing sufficient amounts of trans-1,4 butadiene units to crystallize.

    摘要翻译: 用作溶液聚合催化剂的组合物包括(1)钡,钙和/或锶醇盐,(2)有机铝化合物和(3)有机镁化合物。 (2)和(3)可以用作与(1)的络合物。 该组合物可用于聚合烯属不饱和单体如丁二烯,丁二烯和苯乙烯,异戊二烯和杂环单体如环氧乙烷,噻咯烷,硅氧烷,硫杂烷和内酰胺。 催化剂组合物可以生产具有高达90%的反式-1,4-含量的聚丁二烯和丁二烯 - 苯乙烯共聚物。 本发明聚合的非终止特征允许制备功能封端的基于丁二烯的聚合物和含有足够量的反式-1,4-丁二烯单元结晶的嵌段聚合物。

    Preparation of lithium initiator for the preparation of star polymers
    2.
    发明授权
    Preparation of lithium initiator for the preparation of star polymers 失效
    制备星形聚合物的锂引发剂的制备

    公开(公告)号:US4497748A

    公开(公告)日:1985-02-05

    申请号:US421699

    申请日:1982-09-22

    摘要: Divinyl benzene and/or diisopropenyl benzene in hydrocarbon solvent is added over a period of time at low temperature to a hydrocarbon solvent containing a C.sub.2-20 normal, secondary or tertiary alkyl or cycloalkyl lithium compound and a tertiary alkylamine having 2-4 carbon atoms prepared at low temperature to provide an initiator having an average of from 4 to 9 C-Li sites and a VPO Mn of from about 750 to 4,000. These initiators are useful in polymerizing dienes and vinyl monomers to provide star polymers having an average of from about 4 to 9 arms or branches. These star polymers among other things are useful low profile or low shrink additives for FRPs, e.g., glass fiber reinforced plastics.

    摘要翻译: 将二乙烯基苯和/或二异丙烯基苯在烃溶剂中在一段时间内在低温下加入到含有C 2-20正,仲或叔烷基或环烷基锂化合物和具有2-4个碳原子的叔烷基胺的烃溶剂中 在低温下提供具有平均4至9个C-Li位点和约750至4,000个VPO&Upbar&Mn的引发剂。 这些引发剂可用于聚合二烯和乙烯基单体以提供平均约4至9个臂或分枝的星形聚合物。 这些星形聚合物在其它方面是用于FRP的低轮廓或低收缩添加剂,例如玻璃纤维增​​强塑料。

    Tire ply splice construction and method of making the same
    3.
    发明授权
    Tire ply splice construction and method of making the same 失效
    轮胎拼接结构及其制作方法

    公开(公告)号:US4466473A

    公开(公告)日:1984-08-21

    申请号:US468432

    申请日:1983-02-22

    摘要: A method of making radial pneumatic tires substantially reduces or eliminates sidewall indentations in the inflated tire. A plurality of cuts is made in one end of each layer of ply fabric where the end of the ply fabric overlaps the other end to form a splice which results in the generally annular shape of the ply layer. The cuts extend in a direction generally transverse to the end edge and preferably have a length which is approximately the same as the width of the overlap of the cut edge with the other edge. The cuts prevent overtensioning of the ply cords, which otherwise result in sidewall indentations.

    摘要翻译: 制造径向充气轮胎的方法基本上减少或消除了充气轮胎中的侧壁压痕。 在每一层织物层的一端形成多个切口,其中,层叠织物的端部与另一端重叠以形成接合部,从而形成帘布层的大致环形形状。 切口沿大致横向于端边缘的方向延伸,并且优选地具有与切割边缘与另一边缘的重叠的宽度大致相同的长度。 切口防止帘布层的过度张紧,否则会导致侧壁压痕。

    Method and apparatus for wrapping a tire bead ring
    4.
    发明授权
    Method and apparatus for wrapping a tire bead ring 失效
    用于包裹胎圈环的方法和装置

    公开(公告)号:US4450025A

    公开(公告)日:1984-05-22

    申请号:US462284

    申请日:1983-01-31

    申请人: Virgil E. Henley

    发明人: Virgil E. Henley

    IPC分类号: B29D30/50 B29H17/12 B29H17/34

    CPC分类号: B29D30/50

    摘要: An apparatus and method are provided for applying an envelope-type wrapping to tire bead rings. The apparatus and method are particularly useful when the wrapping material is to be applied directly over a lubricant coating on the bead ring. The apparatus includes a radially expansible drum, and an inflatable bladder that covers the drum and is interposed, along with the wrapping material, between the bead ring and the drum. According to the method of the invention, the bladder is inflated and rolled over in a desired sequence of steps to apply an envelope wrapping to the bead ring.

    摘要翻译: 提供了一种用于将包封型包装施加到轮胎胎圈环的装置和方法。 当将包装材料直接施加在珠环上的润滑剂涂层上时,该装置和方法特别有用。 该装置包括径向可膨胀的鼓和可膨胀的气囊,其覆盖滚筒并且与包裹材料一起插入在胎圈环和滚筒之间。 根据本发明的方法,气囊以期望的步骤顺序膨胀和翻转,以将包络线包裹到胎圈环上。

    Preparation of polyamides
    5.
    发明授权
    Preparation of polyamides 失效
    聚酰胺的制备

    公开(公告)号:US4414362A

    公开(公告)日:1983-11-08

    申请号:US354838

    申请日:1982-03-04

    IPC分类号: C08G69/18 C08G69/14

    CPC分类号: C08G69/18

    摘要: Polyamides from lactams are prepared by the reaction of an initiator compound, a liquid hydroxy containing nitrile copolymer and a lactam using as a catalyst a minor amount of a lactam anionic polymerization catalyst. The resulting polyamides exhibit high impact strength and improved dimensional stability or reduced sensitivity to dimensional change upon exposure to a high humidity environment.

    摘要翻译: 来自内酰胺的聚酰胺通过引发剂化合物,含液体羟基腈共聚物和内酰胺的反应,使用少量内酰胺阴离子聚合催化剂作为催化剂制备。 得到的聚酰胺表现出高的冲击强度和改善的尺寸稳定性或降低对暴露于高湿度环境时尺寸变化的敏感性。

    Adhesion of rubber to aramid cords
    7.
    发明授权
    Adhesion of rubber to aramid cords 失效
    橡胶与芳纶绳的粘合力

    公开(公告)号:US4409055A

    公开(公告)日:1983-10-11

    申请号:US457500

    申请日:1983-01-12

    申请人: Otto C. Elmer

    发明人: Otto C. Elmer

    摘要: An aramid reinforcing element or cord is dipped in an aqueous adhesive composition of a phenolic-aldehyde resin and a vinyl pyridine latex and dried. The treatment is repeated again and preferably for three times. The repeatedly treated cord is then cured with a rubber compound to give improved H-adhesion values. If desired, a primer treatment with an epoxide may proceed the aqueous adhesive composition treatments.

    摘要翻译: 将芳族聚酰胺增强元件或绳索浸渍在酚醛树脂和乙烯基吡啶胶乳的水性粘合剂组合物中并干燥。 再次重复处理,优选三次。 然后用橡胶化合物固化反复处理的帘线,以提供改善的H粘附值。 如果需要,用环氧化物进行底漆处理可以进行水性粘合剂组合物处理。

    Rubber slab dip
    9.
    发明授权
    Rubber slab dip 失效
    橡胶板浸

    公开(公告)号:US4354001A

    公开(公告)日:1982-10-12

    申请号:US332689

    申请日:1981-12-21

    申请人: Tiong H. Kuan

    发明人: Tiong H. Kuan

    摘要: A composition of a blend of a carboxylated copolymer latex and an acrylate copolymer latex containing a minor amount by weight of a heat sensitizer sufficient to gel the composition and which also can contain fillers, wetting agents and stabilizers, and so forth can be used to provide a water resistant film on the surface of a hot rubber compound or composition which subsequently can be cooled rapidly with water and dried. The resulting latex coated rubber can then be stacked or assembled without sticking.

    摘要翻译: 可以使用羧化共聚物胶乳和含有少量重量的足以使组合物凝胶化并且还可以含有填料,润湿剂和稳定剂等的热敏化剂的丙烯酸酯共聚物胶乳的共混物的组合物,以提供 在热的橡胶化合物或组合物的表面上的防水膜随后可以用水快速冷却并干燥。 所得到的胶乳涂覆的橡胶然后可以堆叠或组装而不粘附。

    Resilient strip and metal carrier therefor
    10.
    发明授权
    Resilient strip and metal carrier therefor 失效
    弹性带和金属载体

    公开(公告)号:US4348443A

    公开(公告)日:1982-09-07

    申请号:US217737

    申请日:1980-12-18

    申请人: Richard D. Hein

    发明人: Richard D. Hein

    IPC分类号: B60J10/00 B60J10/08 E06B7/18

    摘要: A resilient strip with a channel-shaped section that attaches to a flange on an automobile frame has improved metal carrier fixed to its channel-shaped section. The metal carrier has a continuous longitudinal web with sheet metal elements extending from either side that are triangular in shape. The triangular-shaped elements require only half the metal as the conventional rectangular elements, yet they have the same holding power for maintaining the resilient strip on the flange of the automobile body.

    摘要翻译: 具有附接到汽车框架上的凸缘的通道形截面的弹性带具有固定到其通道形截面的改进的金属载体。 金属载体具有连续的纵向腹板,其中金属片元件从三角形的任一侧延伸。 三角形元件仅需要一半的金属作为常规的矩形元件,但是它们具有相同的保持力,用于将弹性条保持在汽车车身的凸缘上。