发明名称 |
Method for producing molded crystalline resin article |
摘要 |
To provide a method for producing a molded crystalline resin article which enables a higher crystallization degree and to mass-produce the molded crystalline resin articles. The method comprises molding a molded resin article from a thermoplastic resin containing a crystalline resin followed by performing a heating process to obtain a molded crystalline resin article having a surface layer whose crystallization index is 0.9 or higher when determined by IR spectrometry. It is preferable that the temperature of the heating process is within the range of 20° C. lower than the crystallization temperature of the molded resin article to 30° C. higher than the crystalline temperature, and that the crystalline resin is a polypropylene resin.
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申请公布号 |
US6423263(B1) |
申请公布日期 |
2002.07.23 |
申请号 |
US19980028458 |
申请日期 |
1998.02.24 |
申请人 |
TOYODA GOSEI CO., LTD. |
发明人 |
KOIZUMI JUNJI;ITO KATSUSHI;MIZUTANI HARUYASU |
分类号 |
B29C59/00;B29C71/00;B29C71/02;(IPC1-7):B29C59/16 |
主分类号 |
B29C59/00 |
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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