发明名称 |
UN PROCEDIMIENTO Y APARATO MEJORADOS PARA FORMAR PELICULA PLASTICA |
摘要 |
A plastics film is formed by annealing a molten tubular film (5) in a first enclosed space (6) and immediately thereafter directing cold air perpendicular to the axis thereof and expanding and solidifying the film in a second enclosed space (11) while in contact with cold air flowing parallel to film travel. |
申请公布号 |
AR224823(A1) |
申请公布日期 |
1982.01.15 |
申请号 |
AR19810285503 |
申请日期 |
1981.05.29 |
申请人 |
NIPPON UNICAR CO LTD |
发明人 |
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分类号 |
B29C55/28;B29C47/00;B29C47/88;B29C49/00;B29C55/00;C08J5/18 |
主分类号 |
B29C55/28 |
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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