发明名称 |
Process for the production of blow molded articles accompanied with the recovery of a blowing gas. |
摘要 |
<p>In a blow molding process in which a parison is blown with a blowing gas containing a reactive gas component capable of reacting with the inner walls of the parison, the blowing gas is removed from the resulting blown article with a purging gas and stored for reuse. The mixture of blowing and purging gases in a reserve tank or other suitable means is adjusted to a certain level of pressure and reactive gas concentration and then recycled as the blowing gas in a subsequent blow molding step. The resulting blown articles from this process have improved properties, e.g. improved impermeability against non-polar solvents when fluorine is the reactive gas.</p> |
申请公布号 |
EP0039929(A1) |
申请公布日期 |
1981.11.18 |
申请号 |
EP19810103536 |
申请日期 |
1981.05.08 |
申请人 |
DAIDO OXYGEN;DAIDO OXYGEN COMPANY, LTD. |
发明人 |
FUKUSHIMA, HATAHIKO;HANDA, TADAHIKO;KODAMA, KENJI |
分类号 |
B29C65/00;B29B11/10;B29C35/16;B29C49/00;B29C49/04;B29C49/46;B29C49/58;B29C49/62;B29C49/66;(IPC1-7):29C17/07;29D23/03 |
主分类号 |
B29C65/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|