Original document(23 pages) Authorized document(23 pages) 中文版
    A process for drawing, with plug assist, thin-walled, closed-ended, tubular articles of thermoplastic elastomer is disclosed as well as a thermoplastic elastomer and apparatus therefor. According to the process, a plug (6), extensible into the mold cavity (5), is employed concurrently with a varying air pressure differential across the faces of the preform to bias the flow of the drawn article axially along the length of the tubular mold and away from the mold walls. At a point where the article is drawn substantially the length of the tubular mold, the mold is evacuated and the article finally formed against the mold walls. Such articles are usefully employed as condoms or finger cots.
Application Number
申请号
02140302 Application Date
申请日
1994.11.25
Title 名称 Method for mfg. thin-wall end sealing tubular objects of thermoplastic elastomer
Publication Number
公开号
1426887 Publication Date
公开日
2003.07.02
Approval Pub. Date 2005.03.23 Granted Pub. Date 2005.03.23
International Classification 分类号 B29C51/10;B29C71/02;A61F6/04
Applicant(s) Name
申请人
Aoso-McNeal Ltd.
Address 地址
Inventor(s) Name 发明人 R.G. Miller;W.C. Miller;O.T. Tanko Vitz
Attorney & Agent 代理人 tan mengsheng
More information 更  多  信  息


 Related patents information
Google
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.