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    • 6. 发明授权
    • Ingredient filled polytetrafluoroethylene dental floss devoid to grip
enhancing coating
    • 成分填充聚四氟乙烯牙线无法抓住增强涂层
    • US5911228A
    • 1999-06-15
    • US678619
    • 1996-07-10
    • John CurtisKaren DePierroDavid Delgado
    • John CurtisKaren DePierroDavid Delgado
    • A61C15/04A61K8/02A61Q11/00
    • A61Q11/00A61C15/041A61K8/02
    • The floss is comprised of one or more strands of a tensilized polytetrafluoroethylene. The polytetrafluoroethylene is tensilized by stretching with heating to increase the tensile strength and to decrease elongation. The floss is readily grippable since it has an irregular surface. The polytetrafluoroethylene is made to have an irregular surface by having a solid incorporated into the fiber structure. The solid has a diameter of from about submicron size up to about 125% of the thickness diameter of the fiber. The floss will have a coefficient of friction of more than about 0.08. There is an acceptable grippability without the need for a coating. In addition, the solid that is incorporated into the fiber can be a bioactive material for delivery of the bioactive material to the teeth and gums during flossing.
    • 牙线由一束或多股紧固聚四氟乙烯构成。 聚四氟乙烯通过加热拉伸而拉伸,以提高拉伸强度并降低伸长率。 由于牙线具有不规则的表面,牙线易于抓握。 聚四氟乙烯通过将固体结合到纤维结构中而制成具有不规则表面。 该固体具有直径约为亚微米尺寸直至纤维厚度直径的约125%。 牙线的摩擦系数将大于约0.08。 在不需要涂层的情况下,具有可接受的抓握性。 此外,掺入纤维中的固体可以是用于在牙线中将生物活性物质递送到牙齿和牙龈的生物活性材料。