发明名称 |
Process for recovering monomeric units of a nylon from whole carpet |
摘要 |
The invention relates to a process for recovering monomeric units of a nylon from carpet material. The carpet material includes fibres containing nylon bound to a backing containing one or more non-nylon components. The carpet material contains between 15 and 35 wt. % of the nylon. The process includes: a) mechanically separating the carpet material into an enriched carpet mixture containing between 35 and 55 wt. % of said nylon and into a depleted carpet mixture having a lower content of nylon than the carpet material; and b) exposing the enriched carpet mixture to conditions at which depolymerization of the nylon is effected.
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申请公布号 |
US7115671(B2) |
申请公布日期 |
2006.10.03 |
申请号 |
US20020159982 |
申请日期 |
2002.06.03 |
申请人 |
DSM IP ASSETS B.V. |
发明人 |
COURAGE ANTONIUS J. F. M.;HOUBEN MARCO J. A.;MERTENS MATHIEU H. M.;RAETS LEONARDUS J. G. |
分类号 |
C08J11/04;B03B9/06;B29B17/02;B29B17/04;C07D201/12 |
主分类号 |
C08J11/04 |
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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