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    • 12. 发明授权
    • Thermoplastic products having antislip surfaces
    • 具有防滑表面的热塑性产品
    • US06509084B2
    • 2003-01-21
    • US09779059
    • 2000-12-05
    • Thomas M. SturtevantEdward E. Cullivan
    • Thomas M. SturtevantEdward E. Cullivan
    • D06N704
    • B29C51/02B05D5/02B24D3/002B29B11/14B29C51/10B29K2023/065B29K2995/0072B29L2031/3005B60R13/01Y10T428/24355Y10T428/24372Y10T428/24405Y10T428/31
    • Thermoplastic products such as vehicle cargo area liners, floor mats, recreational and playground equipment, cargo pallets, and wet area walking surfaces are provided with an antislip surface treatment. The antislip surface is made up of individual non-interconnected asperities of an antislip polymer material, which do not form a continuous film over the surface of the thermoplastic product. The thermoplastic product is especially made of high density polyethylene. The antislip polymer is preferably a thermoset polymer, and most particularly is a polyurea/isocyanate polymer. The antislip polymer is preferably applied by spraying, and then the product is heat treated at a temperature in the range from 100 to 200° F., or is thermoformed at a temperature in the range from 250 to 550° F. The antislip asperities are durably bonded onto the thermoplastic base material, and provide a significantly increased coefficient of friction. The asperity size, height, and hardness can be controlled by adjusting the processing conditions. The asperities may have an increased surface relief due to a so-called “moth effect” and an increased surface roughness due to cratering as a result of a so-called “volcano effect” in the process using thermoforming.
    • 汽车货物区域衬垫,地板垫,娱乐和游乐场设备,货物托盘和湿区行走表面等热塑性产品设有防滑表面处理。 防滑表面由防滑聚合物材料的单独的非互连的凹凸构成,其在热塑性产品的表面上不形成连续的膜。 热塑性产品特别是由高密度聚乙烯制成。 防滑聚合物优选为热固性聚合物,最特别是聚脲/异氰酸酯聚合物。 防滑聚合物优选通过喷涂施加,然后将产物在100至200°F的温度下进行热处理,或在250至550°F的温度下热成型。防滑粗糙度为 耐久地粘合到热塑性基材上,并提供显着增加的摩擦系数。 通过调整加工条件可以控制粗糙度,高度和硬度。 由于所谓的“飞蛾效应”,由于在使用热成型的方法中所谓的“火山效应”造成的凹坑,表面粗糙度可能增加。