发明名称 Verfahren zur Herstellung von wässrigen Zusammensetzungen aus Ethylen-Vinylalkohol-Copolymeren
摘要 Provided is a method for producing an aqueous ethylene-vinyl alcohol copolymer (EVOH) composition that ensures efficient removal of alcohol not worsening the environment in and around working areas. Also provided are EVOH pellets of the aqueous composition, which can be produced stably and can be washed rapidly. The production method comprises introducing an EVOH solution that contains at least 50 parts by weight, relative to 100 parts by weight of EVOH therein, of an alcohol having a boiling point of not higher than 100 DEG C, into a vessel, and contacting it with water vapor in the vessel, thereby letting the alcohol out along with water vapor and taking the resulting aqueous EVOH composition that contains from 0 to 10 parts by weight of the alcohol and from 10 to 500 parts by weight of water, relative to 100 parts by weight of EVOH therein, out of the vessel. The EVOH pellets are obtained by cutting the aqueous EVOH composition obtained in the production method.
申请公布号 DE60024810(D1) 申请公布日期 2006.01.19
申请号 DE2000624810 申请日期 2001.08.07
申请人 KURARAY CO., LTD 发明人 KAWAHARA, TAKAHARU;TUBOI, TOSHIO;OHARA, YUKIHIRO
分类号 C08F6/10;C08F8/12;C08J3/14 主分类号 C08F6/10
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