发明名称 |
A METHOD OF CLEANING OR PURIFYING ELASTOMERS AND ELASTOMERIC ARTICLES WHICH ARE INTENDED FOR MEDICAL OR PHARMACEUTICAL USE |
摘要 |
<p>A method of cleaning or purifying elastomers and elastomeric articles which are intended for medical or pharmaceutical use which method comprises firstly performing a solvent extraction process on the elastomer or elastomeric article using a solvent in a non-supercritical state to substantially remove impurities therefrom and thereafter subjecting the elastomer or elastomeric article to a further solvent extraction step using a supercritical fluid or a mixture of supercritical fluids in order to remove or substantially reduce the concentration of the residue of extracting solvent remaining in the elastomer or elastomeric article after the first solvent extraction process.</p> |
申请公布号 |
WO9738044(A1) |
申请公布日期 |
1997.10.16 |
申请号 |
WO1997GB01009 |
申请日期 |
1997.04.09 |
申请人 |
BESPAK PLC;BARNES, PAUL |
发明人 |
BARNES, PAUL |
分类号 |
B01D11/02;C08C3/02;C08J7/00;(IPC1-7):C08J7/02 |
主分类号 |
B01D11/02 |
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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