发明名称 |
Marbled floor covering and process for its production |
摘要 |
<p>A rubber moir+E,acu e+EE floor covering is disclosed. The covering is produced by continuously feeding a screw-type short extruding machine having a length/diameter ratio of 6:1 with two or three varicolored strips of vulcanizable elastomeric material. The operating temperature is between 60 DEG C. to 100 DEG C. The elastomeric material leaves the extruder via a perforated disk having 200 to 600 cylindrical bore holes 3-5 mm in diameter. Each of the resulting strands is severed to produce segments that are 1 to 2 mm thick, the formed pieces are then cooled off on a section 4 meters to 6 meters long. Subsequently, the formed pieces are allowed to fall into the roll nip of a temperature controllable two-bowl calendar. The web of material leaving the calendar is fed to a continuous vulcanization installation and leaves it as finished floor covering. The material throughput rate in this continuous process may be varied from 700 kg/h up to 1300 kg/h.</p> |
申请公布号 |
EP0743154(B1) |
申请公布日期 |
1999.12.15 |
申请号 |
EP19950116534 |
申请日期 |
1995.10.20 |
申请人 |
FIRMA CARL FREUDENBERG |
发明人 |
GRAAB, GERHARD, DR.;NAHE, TORSTEN;HECKEL, KLAUS, DR.;BUTSCHER, ALFONS |
分类号 |
B29C43/24;B29C43/30;B29C43/34;B29C69/02;B29K21/00;B29L31/58;D06N7/02;(IPC1-7):B29C43/30 |
主分类号 |
B29C43/24 |
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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