High molecular weight polystyrene and method
    3.
    发明授权
    High molecular weight polystyrene and method 失效
    高分子量聚苯乙烯和方法

    公开(公告)号:US4833223A

    公开(公告)日:1989-05-23

    申请号:US132445

    申请日:1987-12-14

    申请人: Charles L. Myers

    发明人: Charles L. Myers

    IPC分类号: C08F212/08 C08L71/12

    CPC分类号: C08F212/08 C08L71/123

    摘要: A method for producing a high molecular weight polystyrene comprises polymerizing styrene monomer and from about 0.01 to about 2.0 parts by weight per 100 parts by weight total monomer of a polyfunctional monomer in an emulsion polymerization medium. Preferred polyfunctional monomers include allyl groups, vinyl groups or mixtures thereof, and the resultant high molecular polystyrene preferably has a weight average molecular weight, Mw, greater than about 400,000.

    摘要翻译: 制备高分子量聚苯乙烯的方法包括在乳液聚合介质中聚合苯乙烯单体和约0.01至约2.0重量份/ 100重量份的多官能单体的单体总量。 优选的多官能单体包括烯丙基,乙烯基或其混合物,所得高分子量聚苯乙烯的重均分子量Mw大于约400,000。

    Sine set miter gauge and method
    4.
    发明授权
    Sine set miter gauge and method 失效
    正弦斜切度计和方法

    公开(公告)号:US06256900B1

    公开(公告)日:2001-07-10

    申请号:US09444191

    申请日:1999-11-19

    申请人: Charles L. Myers

    发明人: Charles L. Myers

    IPC分类号: B27G2300

    摘要: A miter gauge and method which provides substantially improved resolution in setting the miter angle without adding mechanical complication to the miter gauge mechanism compared to a conventional gauge configuration. The gauge includes a rectangular guide bar which slidably fits within the conventional guide groove of a cutting tool. The guide bar includes an elongated bar and is provided with a first reference pin hole aligned with the center axis of the guide bar for receiving a reference pin (F) held at a known distance of 5 inches from a pivot point on the bar. A slotted semi-circular frame is pivotally mounted to the top surface of the guide bar to pivot about the fixed pivot point on the guide bar. The guide frame includes a planar guide surface or fence against which the workpiece is held as it is moved into the cutting blade of the tool. The slotted semi-circular frame is provided with angular indicia typically between 0° and 60° on each side of the guide frame center line to help set the desired miter angle. A combination handle and screw extends through the slot in the frame and threadably engages the guide bar to clamp the frame at the selected angle with the guide bar. The frame further includes a rearward extending tab which supports a second, or fixed (S), reference pin at the same radial distance of 5 inches from the pivot point of the guide bar as the F pin hole in the guide bar so that the two pins remain on the same radius as the frame is pivoted. The exact miter angle is then set by accurately gauging the distance between the F and S pins in accordance with that determined by the relationship FS=10·Sine(&thgr;/2) where &thgr; is the desired miter angle.

    摘要翻译: 一种斜度计和方法,与传统的量规配置相比,提供了大大提高了在设置斜角的分辨率,而不会对斜角计量机构增加机械复杂性。 该计量器包括可滑动地配合在切割工具的常规引导槽内的矩形导杆。 引导杆包括细长杆,并且设置有与引导杆的中心轴线对准的第一参考销孔,用于接收保持在杆上的枢转点5英寸已知距离处的参考销(F)。 开槽的半圆形框架枢转地安装到导杆的顶表面,以围绕导杆上的固定枢转点枢转。 引导框架包括平面引导表面或栅栏,当工件移动到工具的切割刀片中时,工件被固定在该平面引导表面或栅栏上。 开槽的半圆形框架在导向框架中心线的每一侧上设置有通常在0°和60°之间的角度标记,以帮助设定所需的斜角。 组合手柄和螺钉延伸穿过框架中的狭槽,并与导杆螺纹接合,以将框架与导杆以选定的角度夹紧。 该框架还包括向后延伸的突出部,其以相对于引导杆的枢转点相距5英寸的相对的径向距离支撑第二或固定的(S)基准销,作为导向杆中的F销孔, 销保持在与框架枢转相同的半径。 然后通过精确地测量F和S引脚之间的距离来确定确切的斜角,这是根据θ所需的斜角确定的关系来确定的。

    Alloys of styrenic resins and polyamides
    5.
    发明授权
    Alloys of styrenic resins and polyamides 失效
    苯乙烯树脂和聚酰胺的合金

    公开(公告)号:US4496690A

    公开(公告)日:1985-01-29

    申请号:US500719

    申请日:1983-06-03

    IPC分类号: C08L51/04 C08L77/00

    CPC分类号: C08L77/00 C08L51/04

    摘要: Styrenic resins having incorporated therein from 0.5 to 15 pbw of a copolymerizable, ethlenically unsaturated carbonamide such as acrylamide form alloys with polyamides which exhibit improved compatibility, higher heat distortion temperatures and improved Izod impact values over the range of from 5 to 95 wt. % polyamide and 95 to 5 wt. % modified styrenic resin. The alloys may further include unmodified styrenic resins, as well as conventional stabilizers, fillers and the like.

    摘要翻译: 从0.5至15pbw的可共聚的乙烯不饱和碳酰胺如丙烯酰胺中形成的苯乙烯树脂与聚酰胺形成合金,其表现出改善的相容性,更高的热变形温度和改善的伊佐德冲击值在5至95重量%的范围内。 %聚酰胺和95〜5wt。 %改性苯乙烯树脂。 合金还可以包括未改性的苯乙烯树脂,以及常规的稳定剂,填料等。

    Driver alert system
    6.
    发明授权
    Driver alert system 失效
    司机警报系统

    公开(公告)号:US4348652A

    公开(公告)日:1982-09-07

    申请号:US191697

    申请日:1980-09-29

    摘要: A highway line detection system which is insensitive to changes in road surface warns the driver of a motor vehicle when the vehicle is about to drift across either a center line or an edge line. A unit on each side of the vehicle directs light rays rich in infrared and red radiation downwardly toward the road surface, and includes a photoresponsive receiver responsive to the rays reflected from a painted line or mark. A valid center line or edge line has a width within a predetermined range of minimum and maximum widths and is recognized by the receiver to activate a suitable alarm, but other markings of greater or lesser width are discriminated against to prevent a false alarm. The receiver employs a series of photoconductive cells which are highly sensitive to radiation in the red and near infrared region; they are spaced horizontally on a line extending orthogonally with respect to the fore-and-aft axis of the vehicle in order to establish corresponding spaced points at which reflected rays are detected. Logic circuitry responsive to the photocell outputs activates the alarm if the combination of responding photocells is indicative of the reflection of received rays from a line on the road surface of at least said minimum width but no greater than said maximum width.

    摘要翻译: 当车辆要穿越中心线或边缘线时,对路面变化不敏感的公路线路检测系统警告机动车辆的驾驶员。 车辆两侧的单元将富含红外线和红色辐射的光线朝向路面向下引导,并且包括响应于从涂漆线或标记反射的光线的光响应接收器。 有效的中心线或边缘线具有在最小和最大宽度的预定范围内的宽度,并且被接收器识别以激活适当的报警,但是区分大小或较小宽度的其他标记以防止虚假警报。 接收机采用对红色和近红外区域的辐射高度敏感的一系列光导电池; 它们在相对于车辆的前后轴线垂直延伸的线上水平间隔开,以便建立对应的间隔的点,在该点处检测到反射光线。 响应于光电管输出的逻辑电路如果响应的光电池的组合指示来自至少所述最小宽度但不大于所述最大宽度的路面上的线的接收光线的反射,则激活报警。