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    • 7. 发明申请
    • EARPLUG WITH STIFFENER
    • 有刺激者的耳朵
    • WO03013390A2
    • 2003-02-20
    • PCT/US0225362
    • 2002-08-08
    • BACOU DALLOZ USA SAFETY INC
    • TIEMENS JIM T
    • A61F11/08B29C37/00B29C44/04B29C44/10B29C47/18A61F
    • A61F11/08B29C37/0057B29C44/04B29C44/10B29C47/0016B29C47/0023B29C47/0033B29C47/18B29L2031/753
    • An earplug (12), includes a body (14), of soft elastomeric material such as a soft resilient foam for insertion in the ear canal, and a stiffener (16), of more rigid material than the body (14). The stiffener (16), is in the form of a tube rather than a solid rod, so while the stiffener is resistant to column-like collapse, it is easily radially compressed to facilitate compression of the body as it enters the ear canal. The stiffener tube can be filled with soft resilient foam material, to block the passage of sound through the tube. The tubular stiffener can have a slot extending parallel to the length of the stiffener, to allow soft foam material to flow into the tube to fill it, as the foam material that surrounds the tube is molded. Such molding can be accomplished by extruding foam material while the tubular stiffener passes with the extruded foam through the extrusion head.
    • 一种耳塞(12),包括主体(14),柔软的弹性体材料,例如柔性弹性泡沫,用于插入到耳道中;以及加强件(16),其比主体(14)更刚性的材料。 加强筋(16)呈管而不是实心杆的形式,因此当加强件抵抗柱状塌陷时,其容易径向压缩,以便于身体进入耳道时的压缩。 加强管可以填充柔软的弹性泡沫材料,以阻止声音通过管道。 管状加强件可以具有平行于加强件的长度延伸的槽,以允许软泡沫材料流入管中以填充它,因为围绕管的泡沫材料被模制。 这种模制可以通过挤压泡沫材料来实现,而管状加强件通过挤出的泡沫通过挤压头。
    • 8. 发明申请
    • EXPANDED BIOPOLYMER-BASED ARTICLES AND PROCESS OF PRODUCING THESE
    • 膨胀生物聚合物为基础的文章及其生产工艺
    • WO02020238A1
    • 2002-03-14
    • PCT/NL2001/000653
    • 2001-09-05
    • B29C44/10
    • B29C44/10B29C44/3402
    • Three-dimensional foam mouldings made of a biodegradable thermoplastic polymer, in particular starch, and preferably a second biodegradable component can be manufactured in a discontinuous process by heating the polymer, in the form of an expandable bead or sheet or the like, in a mould having any desired shape under pressure in the presence of a blowing agent and subsequently depressurising. The second component can be used to enhance the water-resistance or the mould product and can be applied after, or preferably during or before the moulding step.
    • 由可生物降解的热塑性聚合物,特别是淀粉,优选第二可生物降解的组分制成的三维泡沫塑料模制品可以通过将可膨胀珠粒或片材等的形式的聚合物加热到模具中而以不连续的方法制造 在发泡剂的存在下在压力下具有任何期望的形状并随后减压。 第二组分可用于增强耐水性或模具产品,并且可以在模制步骤之后或优选在模制步骤之前或之前施加。