Original document(39 pages) Authorized document(40 pages) 中文版
    Breathable microporous films (12) are provided having controlled regional breathability with thick high WVTR regions (24, 29) and thinner low WVTR regions (26, 27). The zoned breathable microporous films can be made by selectively applying heat and/or pressure to specific regions the microporous film such as by feeding a microporous film through a pair of heated nip rollers (18, 19, 20) with one of the rolls (18, 19) having a raised surface area (22, 23) or by applying a focused stream of hot air (110). Monolayer microporous films and multilayer films having at least one microporous layer can be treated to impart zoned breathability to the film.
Application Number
98812375 Application Date
Title 名称 Microporous films having zoned breathability
Publication Number
1282289 Publication Date
Approval Pub. Date 2004.07.21 Granted Pub. Date 2004.07.21
International Classification 分类号 B29C59/04;B32B27/12;D04H13/00
Applicant(s) Name
Kimberly-clark worldwide Inc.
Address 地址
Inventor(s) Name 发明人 S.M. Campbell;H.M. Welch;L.N. Barnett jr.
Attorney & Agent 代理人 cui yaobeng

Process for preparation of fiber-filled thermoplastic resin composition
Method of removing metallic coating layer from scrap metal pieces
Pb-free solder-connected structure and electronic device
Wire electric discharge machine
Electric spark sutting machining device
Insert for cutting of grooves
Method and device for producing fine powder by atomizing molten materials with gases
Apparatus for controlling amount of teeming molten metal and slide plate used for the same
Electromagnetic braking device for smelting metal in continuous casting installation
Device for feeding molten metal
Note:All patent data come from State Intellectual Property Office of the People's Republic of China. If there were discrepancies between here and the State Intellectual Property office, the later is more accurate. The patent data is only for public exchange and learning purposes. We are not responsible for the adverse consequences with unverified use of the data.