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    Pavement marking article and raised pavement marker that uses pressure sensitive adhesive
    12.
    发明授权
    Pavement marking article and raised pavement marker that uses pressure sensitive adhesive 有权
    路面标记物和使用压敏胶的凸起路面标记

    公开(公告)号：US06861141B2

    公开(公告)日：2005-03-01

    申请号：US10225755

    申请日：2002-08-22

    申请人： Gina M. Buccellato ,  Cristina U. Thomas ,  Bimal V. Thakkar ,  Greggory S. Bennett ,  Sithya S. Khieu ,  Gary R. Miron

    发明人： Gina M. Buccellato ,  Cristina U. Thomas ,  Bimal V. Thakkar ,  Greggory S. Bennett ,  Sithya S. Khieu ,  Gary R. Miron

    IPC分类号： C09J4/00 ,  E01F9/04 ,  E01F9/06 ,  E01F9/07 ,  C09J7/02

    CPC分类号： C09J4/00 ,  E01F9/512 ,  E01F9/553 ,  E01F9/573 ,  Y10T428/28 ,  Y10T428/2848 ,  Y10T428/2852 ,  Y10T428/2857 ,  Y10T428/2878 ,  Y10T428/2883 ,  C08F220/00

    摘要： A pavement marking article that has an adhesive composition for adhering the article to a pavement substrate, where the adhesive composition includes a reaction product of an acrylic acid ester of a monohydric alcohol whose homopolymer has a Tg less than 0° C., a non-polar ethylenically unsaturated monomer, and 0-10 parts by weight of a polar ethylenically unsaturated monomer. Preferably the amount of the acrylic acid ester is about 60-90 parts by weight, and the amount of the non-polar ethylenically unsaturated monomer is about 10-40 parts by weight.Also, a raised pavement marker that comprises: (a) a pavement marker body having upper and lower surfaces and an apparent flexural modulus of at least about 50,000 psi and (b) a pressure sensitive adhesive layer disposed upon the lower surface of the marker, wherein the adhesive has: (i) a transition region that begins at a frequency of about 10,000 radians/s or more and extends to a frequency of about 100 radians/s or less at about 25° C.; and (ii) a minimum shear modulus of about 1×105 Pa at an impact frequency of about 100 radians/s at 25° C.; and (iii) a shear modulus value of about 2×104 to 2×105 Pa at a frequency of 1 rad/sec at 25° C. Raised pavement markers that use a pressure sensitive adhesive meeting parameters (i)-(iii) can demonstrate good adhesion to roadways and are capable of withstanding repeated impacts from motor vehicle tires.

    摘要翻译： 一种路面标记制品，其具有用于将所述制品粘附到路面基材上的粘合剂组合物，其中所述粘合剂组合物包含均聚物的Tg低于0℃的一元醇的丙烯酸酯的反应产物， 极性烯属不饱和单体和0-10重量份极性烯属不饱和单体。 优选地，丙烯酸酯的量为约60-90重量份，非极性烯键式不饱和单体的量为约10-40重量份。此外，升高的路面标记包括：（a） 路面标记体具有上表面和下表面以及至少约50,000psi的表观弯曲模量和（b）设置在所述标记物的下表面上的压敏粘合剂层，其中所述粘合剂具有：（i）开始的过渡区域 在约10,000弧度/秒或更大的频率下，在约25℃下延伸至约100弧度/秒以下的频率; 和（ii）在25℃下约100弧度/秒的冲击频率下的约1×10 5 Pa的最小剪切模量; 在25℃下，以1rad / sec的频率，剪切模量值为约2×10 4至2×10 5 Pa。使用满足参数（i） - （iii）的压敏粘合剂的引导路面标记可显示出对 能够承受汽车轮胎的重复冲击。

    Raised retroreflective pavement marker
    18.
    发明授权
    Raised retroreflective pavement marker 失效
    凸起的反光路面标记

    公开(公告)号：US6126360A

    公开(公告)日：2000-10-03

    申请号：US756424

    申请日：1996-11-26

    申请人： David C. May ,  Sithya S. Khieu ,  Cristina U. Thomas ,  Warren J. Johnson ,  Ronald W. Gerdes ,  David J. Lundin

    发明人： David C. May ,  Sithya S. Khieu ,  Cristina U. Thomas ,  Warren J. Johnson ,  Ronald W. Gerdes ,  David J. Lundin

    IPC分类号： E01F9/04 ,  E01F9/06 ,  E01F9/07 ,  E01F9/08

    CPC分类号： E01F9/553

    摘要： A pavement marker has an unpotted upper shell and a lower base plate that together define a housing. A number of ribs are disposed in the housing interior oriented substantially perpendicular to the inner wall of the base plate. The upper shell has inclined end faces, an upper face, and is made of a plastic material having moderate to high flexural modulus and a high impact strength. The lower base plate has a planar inner wall and an opposed planar, pavement-engaging outer wall, and is made of a material having a Young's modulus of at least approximately 300,000 PSI (20.7.times.10.sup.8 Pascal). The ribs are formed unitarily with the inner wall of either the upper shell or the base plate, and extend upwardly from the inner wall of the base plate to the inner wall of the shell. A retroreflective lens is positioned on at least one of the first and second opposed side faces of the marker. The pavement marker resists delamination from a roadway surface when secured to the road with a soft adhesive.

    摘要翻译： 路面标记具有未标出的上壳和下基板，其一起限定壳体。 多个肋设置在基本上垂直于基板的内壁定向的壳体内部。 上壳体具有倾斜的端面，上表面，并且由具有中等至高弯曲模量和高冲击强度的塑料材料制成。 下基板具有平面内壁和相对的平面路面接合外壁，并且由具有至少约300,000PSI（20.7×108帕斯卡）的杨氏模量的材料制成。 肋与上壳体或底板的内壁整体形成，并从基板的内壁向上延伸到壳体的内壁。 回射反射镜位于标记的第一和第二相对侧面中的至少一个上。 当用软粘合剂固定在道路上时，路面标记物抵抗路面的分层。