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公开(公告)号：KR101762385B1
公开(公告)日：2017-07-31
申请号：KR1020160051472
申请日：2016-04-27
Applicant: 대한민국(산림청 국립산림과학원장)
IPC: C09J161/28 , C09J161/24 , B27D1/04 , B27G11/00
CPC classification number: C09J161/28 , B27D1/04 , B27G11/00 , C09J161/24
Abstract: 본발명은 (a) 포르말린과멜라민을반응기에투입하고, 알칼리성용매를첨가하여 pH를 8.6 내지 9.0으로조절한후, 80~90℃의온도로가열한다음, 다시알칼리성용매를첨가하여 pH를 8.6 내지 9.0으로조절한후, 1~1.5 시간동안반응을유지하는단계, (b) 상기단계의반응유지후, 요소를투입하는단계, 및 (c) 상기단계후, 상기반응기내의멜라민-요소수지의점도가 120~210 mPa·s이될 때까지반응을유지하는단계를포함하는, 구조용집성재제조용고내수성멜라민-요소수지접착제의제조방법을제공한다.
Abstract translation: 本发明的（a）被加热到福尔马林和三聚氰胺的在反应器中输入后的温度，并加入到pH至8.6调节到9.0的碱性溶剂，80〜90℃，然后将pH 8.6通过再次添加碱性溶剂 然后保持该反应时间为1至1.5小时;（b）在反应维持该步骤之后加入脲;以及（c）在使三聚氰胺 - 脲树脂 并保持该反应直至粘度达到120-210mPa·s。本发明还提供了一种用于生产结构化助洗剂的高耐水性三聚氰胺 - 脲树脂粘合剂的制备方法。
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公开(公告)号：KR100741365B1
公开(公告)日：2007-07-27
申请号：KR1020060062545
申请日：2006-07-04
Applicant: 대한민국(산림청 국립산림과학원장)
Abstract: Provided is a method for preparing a formaldehyde scavenger, wherein the formaldehyde scavenger decreases the amount of formaldehyde emitted from an adhesive when added to an adhesive for wood boards, and thus reduces the amount of formaldehyde to be introduced into a human body. The method for preparing a formaldehyde scavenger comprises the steps of: mixing formaldehyde with urea to have a formaldehyde/urea molar ratio of 0.4-0.9; adding an alkali to the mixture of formaldehyde and urea to keep the pH of the mixture in an alkaline range; and heating the alkaline mixture at 85-90°C such that the scavenger has a solid content of 45-50%. The alkali is at least one selected from sodium hydroxide, potassium hydroxide, ammonium acetate, ammonium carbonate, and ammonium bicarbonate. The alkaline mixture has a pH of 7.0-8.5.
Abstract translation: 本发明提供了一种制备甲醛清除剂的方法，其中所述甲醛清除剂当被添加到用于木板的粘合剂中时降低了从粘合剂释放的甲醛的量，并且因此减少了引入人体的甲醛的量。 制备甲醛清除剂的方法包括以下步骤：将甲醛与尿素混合使甲醛/尿素摩尔比为0.4-0.9; 向甲醛和尿素的混合物中加入碱以保持混合物的pH在碱性范围内; 并在85-90℃加热碱性混合物，使得清除剂具有45-50％的固体含量。 碱是选自氢氧化钠，氢氧化钾，乙酸铵，碳酸铵和碳酸氢铵中的至少一种。 碱性混合物的pH值为7.0-8.5。
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