发明授权
- 专利标题: Process for making-up polyamide resins solid at room temperature
- 专利标题(中): 室温聚酰胺树脂固化方法
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申请号: US09396906申请日: 1999-09-15
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公开(公告)号: US06232436B1公开(公告)日: 2001-05-15
- 发明人: Wilhelm Beck , Bernhard Leibmann , Aike Niemann , John D. Snyder , Kenneth Bicknell , Michael Mahler
- 申请人: Wilhelm Beck , Bernhard Leibmann , Aike Niemann , John D. Snyder , Kenneth Bicknell , Michael Mahler
- 主分类号: C08F600
- IPC分类号: C08F600
摘要:
A process for granulating a polyamide resin involving: (a) providing an underwater granulating device having a heated multiple-bore die wherein the bores have an internal diameter ranging from 1.2 to 2.5 mm and a length of from 12 to 50 mm; (b) providing a polyamide resin melt having a viscosity, at 160° C., of less than 3,000 mPas; (c) cooling the polyamide resin melt to form a cooled polyamide resin; (d) introducing the cooled polyamide resin into and through the heated multiple-bore die to form an extrudate; (e) providing a source of water; (f) contacting the extrudate with the water to form a cooled extrudate; and (g) cutting the cooled extrudate into granules.
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