发明名称 SEGMENTED FILMS WITH HIGH STRENGTH SEAMS
摘要 Unitary films and laminates thereof are provided having at least first and second film segments which extend adjacent one another and are permanently joined together. The first and second film segments are joined at an interface, wherein at the interface a tip of the second segment overlaps the first segment in the cross-direction of the film. The film has a thickness “T” at the tip of the second segment, and the second segment has a thickness “t” at a distance T in the cross direction from the tip of the second segment. The ratio T/t is suitably greater than about 3. The unitary films and laminates thereof are well suited, for example, for use as outer covers in personal care articles.
申请公布号 US2017008212(A9) 申请公布日期 2017.01.12
申请号 US201414524159 申请日期 2014.10.27
申请人 Kimberly-Clark Worldwide, Inc. 发明人 Ng Wing-Chak;Vidal de Siqueira Jose Augusto
分类号 B29C47/06;C08J5/18 主分类号 B29C47/06
代理机构 代理人
主权项 1. A method of forming a segmented film, the method comprising: providing first and second polymer compositions to a segmented feedblock; transferring the first and second polymer compositions to a film die; co-extruding a segmented film comprising a first film segment of the first polymer composition and a second film segment of the second polymer composition, the first and second film segments being joined at an interface, wherein at the interface a tip of the second film segment overlaps the first film segment in the cross-direction of the film, and wherein the film has a thickness “T” at the tip of the second film segment, and the second film segment has a thickness “t” at a distance T in the cross direction from the tip of the second film segment, and wherein the ratio T/t is greater than about 3.
地址 Neenah WI US
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