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公开(公告)号:US4014893A
公开(公告)日:1977-03-29
申请号:US602011
申请日:1975-08-05
IPC分类号: C07C207/00 , C07D261/08 , C07D271/08 , C07D271/12 , C08F8/30 , C08G18/70 , C08G18/80 , C08G63/84 , C08G71/00 , C08G73/06 , C08G73/08 , C08J7/00 , C08K5/35
CPC分类号: C08K5/35 , C07C207/00 , C07D261/08 , C07D271/08 , C07D271/12 , C08F8/30 , C08G18/701 , C08G18/80 , C08G63/84 , C08G71/00 , C08G73/06 , C08G73/08
摘要: 3,4-Cycloalkano furoxans are produced and are found to be useful in cross-linking of polymers.
摘要翻译: 产生3,4-环烷基呋喃糖,发现其可用于聚合物的交联。
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公开(公告)号:US3931106A
公开(公告)日:1976-01-06
申请号:US467512
申请日:1974-05-06
IPC分类号: C07B43/00 , C07B31/00 , C07C67/00 , C07C207/00 , C07D261/08 , C07D271/08 , C07D271/12 , C08F8/30 , C08G18/70 , C08G18/80 , C08G63/84 , C08G71/00 , C08G73/06 , C08G73/08 , C08J7/00 , C08K5/35 , C08G77/04
CPC分类号: C08K5/35 , C07C207/00 , C07D261/08 , C07D271/08 , C07D271/12 , C08F8/30 , C08G18/701 , C08G18/80 , C08G63/84 , C08G71/00 , C08G73/06 , C08G73/08
摘要: The in situ thermal decomposition of specified furoxans to yield dinitrile oxides is used to modify a polyfunctional species. Preferred uses involve cross-linking of polymers, especially rubbers, but the process may also be used to form polymers from monomeric materials or to bind additives to polymeric substrates. Compositions incorporating polymeric materials and suitable furoxans may be used as "one-shot" casting systems or be produced in the form of thermally curable sheets, etc, having useful shelf-lives.
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公开(公告)号:US4036869A
公开(公告)日:1977-07-19
申请号:US740244
申请日:1976-11-08
IPC分类号: C07C207/00 , C07D271/08 , C07D271/12 , C08G18/75 , C08G18/81 , C07C119/045
CPC分类号: C07C265/10 , C07D271/08 , C07D271/12 , C08G18/75 , C08G18/8125 , C07C2102/22
摘要: 2,4-DIISOCYANATO BICYCLO (3,3,0)-OCT-6-ENE, A NEW COMPOUND AND ITS PREPARATION AND USE ARE DISCLOSED.
摘要翻译: 2,4-DIISOCYANATO BICYCLO(3,3,0)-OCT-6-ENE,一种新化合物及其制备和使用被公开。
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公开(公告)号:US4029686A
公开(公告)日:1977-06-14
申请号:US638655
申请日:1975-12-08
IPC分类号: C07C265/14 , C07C67/00 , C07C207/00 , C07C241/00 , C07C263/08 , C07C265/10 , C07D271/08 , C07D271/12 , C08G18/75 , C08G18/81 , C08L75/04 , C07C118/00
CPC分类号: C07C263/08 , C07C201/00 , C07C263/12 , C07D271/08 , C07D271/12 , C08G18/75 , C08G18/8125 , C07C2101/08 , C07C2102/22
摘要: A furoxan, especially one in which the furoxan ring is fused to a strained aliphatic ring system, is heated in the presence of sulphur dioxide to give an isocyanate. The process enables furoxans, such as dicyclopentadiene furoxan, which ring-open at temperatures
摘要翻译: 将呋喃糖环,其中呋喃环与稠应的脂肪族环系稠合的呋喃糖,在二氧化硫存在下加热得到异氰酸酯。 该方法使得呋喃香糖如二环戊二烯呋喃糖在<180℃的温度下开环转化为异氰酸酯。 在不存在二氧化硫的情况下,可能难以控制反应,并且在某些情况下不能获得异氰酸酯。 通过该方法制备的二异氰酸酯可以通过与合适的羟基化合物反应而转化为聚氨酯。
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