发明名称 |
IN DER FORM EXPANDIERTES FORMPRODUKT AUS POLYPROPYLENHARZ MIT HAUT UND VERFAHREN ZU SEINER HERSTELLUNG |
摘要 |
An in-mold expansion molding product (11) of polypropylene resin having a skin (8) is produced by clamping a mold A (13) lined with a skinning material (8) and a mold B (14) together to form a mold cavity (7), filling the cavity (7) with pre- expanded polypropylene resin particles, feeding steam into the cavity through a steam hole (4) of the mold B (14) to preheat the pre-expanded particles at a temperature lower than a temperature at which the particles fuse with one another, steaming the pre-expanded particles thus treated, and finally heating the steamed pre-expanded particles from the side of the mold B (14) above a temperature at which the particles fuse with one another. The final heating may be effected, if necessary, from the side of the mold A (13). <IMAGE> |
申请公布号 |
DE69323376(T2) |
申请公布日期 |
1999.11.04 |
申请号 |
DE1993623376T |
申请日期 |
1993.04.23 |
申请人 |
KANEGAFUCHI KAGAKU KOGYO K.K., OSAKA |
发明人 |
MATSUKI, KIYOSHI;IBATA, IZUMI |
分类号 |
B29C44/02;B29C44/12;B29C44/14;B29C44/44;B32B5/18;B60K37/00;B60R13/02 |
主分类号 |
B29C44/02 |
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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