| 发明名称 |
PRODUCTION OF TUBULAR FILM OF SYTHETIC RESIN |
| 摘要 |
PURPOSE:A molten tube of synthetic resin is extruded horizontally from a annular orifice and is cooled by blowing a gas from a cooling ring. Simultaneously the gas on the outer periphery of the tube is removed by sucking, thus enabling the highspeed production of tubular films and the contraction of cooling zone. |
| 申请公布号 |
JPS5429371(A) |
申请公布日期 |
1979.03.05 |
| 申请号 |
JP19770094956 |
申请日期 |
1977.08.10 |
| 申请人 |
TOKUYAMA SODA KK |
发明人 |
YOSHIMURA TERUO;NAKAMURA MASARU;WACHI HIROSHI;SUGIMURA SHIGEKI |
| 分类号 |
B29C49/00;B29C47/88;B29C55/00;B29C55/28;G03C3/00 |
主分类号 |
B29C49/00 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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