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24. 发明授权

KR1019910000905B1 폴리에칠렌을 주재로한 통기성 파이프 및 평판 시트 제조 방법 失效
标题翻译：生产聚乙烯管片的方法
公开(公告)号：KR1019910000905B1
公开(公告)日：1991-02-18
申请号：KR1019880009072
申请日：1988-07-19
申请人： 이종열
发明人： 이종열
IPC分类号： B29C47/00
摘要： The ventilative pipe or plate sheet made of polyethylene is prepared by moulding the mixt. in the extruding machine or the rolling machine, washing the moulded material to remove the Na2SO4 and the synthetic detergent inorder, and forming the ventilative pores in the removed part. The said mixt. is comprises 100 pts of the granula or powder type polyethylene; 10-50% of water soluble sodium sulfate (Na2SO4) as filler to be obtained by reacting sodium chloride(NaCl) with sulfonic acid (H2SO4); and 5% of the common synthetic detergent as the surfactant.
摘要翻译：通过模制混合物制备由聚乙烯制成的通风管或板片。在挤出机或轧制机中，依次洗涤模制材料以除去Na 2 SO 4和合成洗涤剂，并在去除部分中形成通气孔。所说的mixt。包括100粒颗粒或粉末型聚乙烯; 通过氯化钠（NaCl）与磺酸（H 2 SO 4）反应获得的10-50％的作为填料的水溶性硫酸钠（Na 2 SO 4）; 和5％的普通合成洗涤剂作为表面活性剂。

26. 发明授权

KR1019900006094B1 자동차의차간거리및안전거리유지장치 无效
标题翻译：防碰撞装置
公开(公告)号：KR1019900006094B1
公开(公告)日：1990-08-22
申请号：KR1019880002069
申请日：1988-02-27
申请人： 이종열
发明人： 이종열
IPC分类号： B60R21/00
摘要： The apparatus includes transmitting sets mounted on the front car, receiving sets mounted on the rear car. When the rear car approaches to a certain distance, IR beam emitted from the transmitter of the rear car, operates the receiver of the front car and turns on brake lighting lamp and alarms the driver of the rear car. The apparatus finally displays and secures sufficient safety braking distance between two travelling cars for preventing traffic accidents especially on high way roads.
摘要翻译：该装置包括安装在前车上的发射组，安装在后车上的接收组。当后车接近一定距离时，从后车的发射器发射的红外线对前车的接收器进行操作，并打开刹车照明灯并报警后车司机。该装置最终显示并确保两辆行车之间的足够的安全制动距离，以防止交通事故，特别是在高速道路上。

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