会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明申请
    • Breathable Film Formed from a Renewable Polyester
    • 可再生聚酯制成的透气膜
    • US20130210621A1
    • 2013-08-15
    • US13370943
    • 2012-02-10
    • Vasily A. TopolkaraevRyan J. McEneanyNeil T. SchollThomas A. Eby
    • Vasily A. TopolkaraevRyan J. McEneanyNeil T. SchollThomas A. Eby
    • B01J20/26C08K5/5415C08J5/18C08K5/17C08K5/101C08L63/10C08L67/00C08K5/053
    • A breathable film formed from a thermoplastic composition that contains a rigid renewable polyester and has a voided structure is provided. To achieve such a structure, a thermoplastic composition that contains a renewable polyester and polymeric toughening additive is extruded onto a surface to form a precursor film in which the toughening additive can be dispersed as discrete physical domains within a continuous matrix of the renewable polyester. The precursor film is thereafter stretched or drawn at a temperature below the glass transition temperature of the polyester (i.e., “cold drawn”). Without intending to be limited by theory, the present inventors believe that the deformation force and elongational strain of the drawing process causes debonding to occur in the renewable polyester matrix at those areas located adjacent to the discrete domains. This creates a network of voids located adjacent to the discrete domains.
    • 提供由含有刚性可再生聚酯并具有空隙结构的热塑性组合物形成的透气膜。 为了实现这种结构,将包含可再生聚酯和聚合物增韧添加剂的热塑性组合物挤出到表面上以形成前体膜,其中增韧添加剂可以作为离散物理区域分散在可再生聚酯的连续基质内。 然后在低于聚酯的玻璃化转变温度的温度(即“冷拉伸”)下将前体膜拉伸或拉伸。 不意在受理论的限制,本发明人认为拉伸过程中的变形力和拉伸应变导致在可再生聚酯基体中在离散畴附近的那些区域发生脱粘。 这创建了一个邻近离散域的空隙网络。