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公开(公告)号:US3907828A
公开(公告)日:1975-09-23
申请号:US33970069
申请日:1969-07-07
申请人: MARUZEN OIL CO LTD
发明人: SATO MIKIO , FUJIWARA HIROSHI , TAKAHASHI ASAO
IPC分类号: B01J27/18 , C07D315/00 , C07D305/06
CPC分类号: C07D315/00 , B01J27/1802
摘要: A novel process for the production of pivalolactone is characterized by dehydrochlorinating monochloropivalic acid in vapor phase in the presence of a catalyst comprising at least one of the metal salts selected from the group consisting of phosphates and pyrophosphates of alkali metals, alkali earth metals, zinc, cadmium, aluminum, thalium, lead, manganese, cobalt and nickel, and chlorides of alkali earth metals, silver copper, thallium, lead and cobalt. Said catalyst may be further combined with an activator selected from the group consisting of the oxides of zirconium, arsenic and rare earth elements.
摘要翻译: 用于生产新戊内酯的新方法的特征在于在催化剂存在下,气相中脱氯化氢一氯新戊酸,所述催化剂包含至少一种选自磷酸盐和碱金属的焦磷酸盐,碱土金属,锌, 镉,铝,铊,铅,锰,钴和镍,以及碱土金属,银铜,铊,铅和钴的氯化物。 所述催化剂可以进一步与选自锆,砷和稀土元素的氧化物的活化剂组合。
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2.
公开(公告)号:US3884992A
公开(公告)日:1975-05-20
申请号:US41187473
申请日:1973-11-01
申请人: MARUZEN OIL CO LTD
发明人: SHIMIZU MASARU , FUJIWARA HIROSHI , IWAI SHINJI
IPC分类号: C08G59/00 , C08J5/24 , C08L25/18 , C08L63/00 , C09D125/18 , C09D163/00 , H05K1/03 , C08G45/04
CPC分类号: H05K1/0353 , C08L25/18 , C08L63/00 , C09D125/18 , C08L2666/14 , C08L2666/04
摘要: Thermosetting resin compositions comprising polyhydroxystyrene and an epoxy resin and which can be changed into hardened products having excellent heat resistance. In the hardening of the thermosetting resin compositions under heat, no catalyst or hardening accelerator are needed and hardened products having excellent heat resistance can be obtained therefrom.
摘要翻译: 包含聚羟基苯乙烯和环氧树脂的热固性树脂组合物,其可以变成耐热性优异的硬化物。 在热固性树脂组合物的加热硬化中,不需要催化剂或硬化促进剂,可以得到耐热性优异的硬化物。
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