用二联酚A型环氧树脂和无水马来酸硬化剂制作8平方厘米的部件,其工艺为混合、搅拌、计量、封闭、干燥,局部通风,并使用防护用品。笔者曾经历由蒸气吸入或皮肤接触致敏的病例。作业者从初次使用不足2月,接触6次后开始发病。实际操作时间合计17小时,一次使用树脂量200—400克,硬化剂110—220克。发病经过,自接触次日起颜面、两上肢发疹,有痒感,不足一个月症状消失。症状消失后作皮肤斑贴试验,1％重量浓度树脂和硬化剂,对照用稀释溶媒白色凡士林,三种物质在前膊斑贴24小时,看24及48小时结果。24小时局限于环氧树脂斑贴部位发红和同样大的硬结。有痒感但无疼痛。48小时硬结更硬,在其上有 Eight square centimeters of parts were made with the diphenol A epoxy resin and the anhydrous maleic acid hardener in the process of mixing, stirring, metering, sealing, drying, local ventilation and the use of protective articles. The author has experienced cases of sensitization by vapor inhalation or skin contact. Operators from the initial use of less than 2 months, 6 times after the onset of disease. The total actual operation time is 17 hours. The amount of resin used is 200-400 grams and 110-220 grams of hardener. After the onset, the face from the touch the next day, two upper extremities rash, itching, less than a month symptoms disappear. After the symptoms disappeared for the skin patch test, 1% by weight concentration of resin and hardener, control with diluted solvent white Vaseline, three substances posted in the forehead patch 24 hours to see the results of 24 and 48 hours. 24 hours confined to the patch of epoxy resin redness and the same large induration. Itching but no pain. 48 hours harder harder, on it