Banach Timothy E.,Whitney John Morgan,Lamb James J.
申请号：
US201514710273
公开号：
US9765174(B2)
申请日:
2015.05.12
申请国别(地区):
美国
年份:
2017
代理人:
Townes Jeffrey N.`LeClairRyan
摘要：
This invention relates to processes for preparing novolak resins and using the same as reinforcing resins. One process comprises reacting one or more alkylphenols with an aldehyde in the presence of a base to form a resole resin, wherein for each mole of alkylphenol at least 1.5 moles of aldehyde are reacted; and reacting the resole resin with one or more phenolic compounds in the presence of an acidic catalyst to form a novolac resin, wherein for each mole of alkylphenol at least 1.5 moles of the phenolic compounds are reacted. Another process comprises reacting one or more alkylphenols with an aldehyde in the presence of a base to form a resole resin, and reacting the resole resin with one or more phenolic compounds under an elevated temperature to form a novolac resin.
