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公开(公告)号:US4419503A
公开(公告)日:1983-12-06
申请号:US381205
申请日:1982-05-24
IPC分类号: C08F240/00 , C08F4/14
CPC分类号: C08F240/00
摘要: In a process in which a C.sub.5 -C.sub.12 feedstock has been distilled from a cracked petroleum fraction and polymerized with the help of a Friedel-Crafts catalyst to produce a petroleum resin, the C.sub.5 -C.sub.12 feedstock is first dried to a moisture content of less than about 10 ppm water and then contacted with anhydrous hydrogen halide, usually HCl, prior to polymerization.
摘要翻译: 在其中C5-C12原料已经从裂化石油馏分中蒸馏并用Friedel-Crafts催化剂进行聚合以生产石油树脂的方法中,首先将C5-C12原料干燥至含水量小于 约10ppm水,然后在聚合之前与无水卤化氢(通常为HCl)接触。
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2.
公开(公告)号:US4332738A
公开(公告)日:1982-06-01
申请号:US209788
申请日:1980-11-24
摘要: The esterification of neo acids catalyzed by the presence of a macro-reticular structured sulfonic acid cation exchange resin proceeds under mild conditions with a wide variety of alcohols to give readily recoverable esters in high yields and high purity and an easily recoverable and reusable catalyst.
摘要翻译: 通过大网状结构磺酸阳离子交换树脂的存在催化的新酸的酯化在温和条件下与各种醇进行,以高产率和高纯度提供易于回收的酯,并且易于回收和可重复使用的催化剂。
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