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    • 7. 发明授权
    • Process for hydrophobic treatment of water vapor permeable substrates
    • 疏水处理水蒸气透过性基材的方法
    • US06660339B1
    • 2003-12-09
    • US10070485
    • 2002-06-21
    • Saswati DattaPaul Amaat Raymond Gerard FranceArseniy Valerevich Radomyselskiy
    • Saswati DattaPaul Amaat Raymond Gerard FranceArseniy Valerevich Radomyselskiy
    • C23C1648
    • C23C14/582C23C14/12
    • The present invention relates to a process, preferably a continuous process, of coating a substrate, which allows water vapor and preferably air permeation, with a hydrophobic coating. The process preferably uses a thin film vacuum condensation step to create a monomer coating which is cured in situ after the coating. The process has the benefit of allowing continuous operation and providing an alternative to existing processes for hydrophobic coating. The substrates are coated such that the water vapour permeation sites are not blocked by the coating to maintain the desired breathability. The static water contact angle on the surface of such substrates is more than 95°. Such substrates are preferably employed in absorbent articles such as diapers, incontinence products, underarm sweat pads, sanitary napkins, catamenials, pantiliners, breast pads, shoe inserts of bandages or alternatively in protective garments such as gloves or rain coats for which water vapor transmission in particular from the inside to the outside is highly desirable.
    • 本发明涉及一种使疏水性涂层涂覆基底的方法,优选连续方法,其允许水蒸气,优选空气渗透。 该方法优选使用薄膜真空冷凝步骤以产生在涂覆之后原位固化的单体涂层。 该方法具有允许连续操作并提供用于疏水涂覆的现有方法的替代物的优点。 涂覆基材使得水蒸气渗透部位不被涂层阻挡以保持所需的透气性。 这种基板表面的静水接触角大于95°。 这些基材优选用于吸收制品,例如尿布,尿失禁产品,腋下汗垫,卫生巾,月经垫,短裤护垫,乳垫,绷带鞋垫,或替代地防护衣服如手套或雨衣, 特别是从内向外是非常需要的。