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1. 发明授权

US4761089A Synthetic resin pen nib 失效
标题翻译：合成树脂笔尖
公开(公告)号：US4761089A
公开(公告)日：1988-08-02
申请号：US939468
申请日：1986-11-25
申请人： Norigi Kurihara , Ryutaro Sakuda
发明人： Norigi Kurihara , Ryutaro Sakuda
IPC分类号： B43K1/00 , B43K1/12
CPC分类号： B43K1/003
摘要： Thermoplastic synthetic resin pen nib is disclosed, which may suitably be employed in writing instruments for fine lettering or for drawing fine lines. The pen nib is formed of thermoplastic crystalline synthetic resin, e.g. polyethylene terephthalate resin, whose molecules are in a specific mixed cystallization structure obtained by controlling the crystallization. This structure consists essentially of molecularly oriented crystals, non-oriented fine crystals dispersed and grown between the oriented crystals, and remaining amorphous regions, and provides the pen nib with highly improved physical and chemical properties.
摘要翻译：公开了热塑性合成树脂笔尖，其可以适用于用于精细刻字的书写工具或用于绘制细线。笔尖由热塑性结晶合成树脂制成，例如聚对苯二甲酸乙二醇酯树脂，其分子是通过控制结晶获得的特定的混合结晶结构。该结构基本上由分子取向晶体组成，在定向晶体之间分散和生长的非取向微晶体以及剩余的非晶区域，并为笔尖提供高度改善的物理和化学性质。

2. 发明授权

US4597932A Method of manufacturing synthetic resin pen nibs 失效
标题翻译：制造合成树脂笔尖的方法
公开(公告)号：US4597932A
公开(公告)日：1986-07-01
申请号：US624003
申请日：1984-06-25
申请人： Norigi Kurihara , Ryutaro Sakuda
发明人： Norigi Kurihara , Ryutaro Sakuda
IPC分类号： B29C47/00 , B29C55/06 , B29C71/00 , B29C71/02 , B43K1/00 , B29C47/90
CPC分类号： B29C71/0063 , B29C47/0023 , B29C55/06 , B43K1/003 , B29C2071/022 , B29C47/0016 , B29C47/003 , B29C47/0057 , B29C71/02 , B29K2995/0041 , B29L2031/06
摘要： Method of manufacturing synthetic resin pen nibs is disclosed, which pen nibs may suitably be employed in writing instruments for fine lettering or drawing fine lines. The pen nibs are formed of thermoplastic crystalline synthetic resin, e.g. polyethylene terephthalate resin, which is extruded from a molding die and subjected to rapid cooling to form a continuous rod in amorphous state. The rod is axially stretched under predetermined temperature condition to achieve oriented crystallization of the resin molecules, and is further heat-treated such that non-oriented fine crystals are dispersed and grown between oriented crystals and remaining amorphous regions. Pen nib thus obtained has highly improved physical and chemical properties.
摘要翻译：公开了制造合成树脂笔尖的方法，其中笔尖可适用于用于精细刻字或绘制细纹的书写工具。笔尖由热塑性结晶合成树脂形成，例如聚对苯二甲酸乙二醇酯树脂，其从成型模具中挤出并进行快速冷却以形成无定形状态的连续棒。杆在预定温度条件下轴向拉伸以实现树脂分子的取向结晶，并进一步热处理，使得未取向的细晶体在取向晶体和剩余的非晶区域之间分散和生长。笔尖由此得到的物理和化学性质有很大改善。

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