通过桐油和本酚在催化剂存在下反应，然后再在碱性催化剂存在下与甲醛反应成功地制得了一种桐油改性甲阶酚醛树脂。
To obtain Successfully the PF resin, reaction of phenol with tung oil in the presence of catalyst was followed by the reaction with formaldehyde in the presence of alkaline catalyst.
以双酚a，甲醛水溶液为原料，在碱性催化剂的作用下，合成双酚a型甲阶酚醛树脂。
A phenolic resin was synthesized from bisphenol a and aqueous formaldehyde in the presence of basic catalyst.
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