Invention Grant
- Patent Title: Molded part and method of its production
- Patent Title (中): 成型件及其生产方法
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Application No.: US264661Application Date: 1994-06-23
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Publication No.: US5786280APublication Date: 1998-07-28
- Inventor: Bernhard Funger , Heinz Gruber
- Applicant: Bernhard Funger , Heinz Gruber
- Applicant Address: DEX Krefeld
- Assignee: Eduard Kusters Maschinenfabrik GmbH & Co. KG
- Current Assignee: Eduard Kusters Maschinenfabrik GmbH & Co. KG
- Current Assignee Address: DEX Krefeld
- Main IPC: B29B13/10
- IPC: B29B13/10 ; B29B17/00 ; B29C43/30 ; B29C70/08 ; B29C70/10 ; B29C70/50 ; B32B21/08 ; B29C29/00
Abstract:
Carpet material with at least a proportion of uncleaned used carpets is shredded to form a fiber-like wooly mass. The carpet material contains a thermoplastic binder with a low melting point, for example polypropylene, which can be derived from the used carpets or be added. Furthermore, a duroplastically hardening binder, for example phenolic resin, is added to the carpet material. The carpet material is compressed to form the molded part or panel with these two binders, at a temperature which lies above the plasticizing point of the thermoplastic binder, but below the plasticizing point of any other thermoplastic components of the carpet material.
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