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1.
公开(公告)号:US06287483B1
公开(公告)日:2001-09-11
申请号:US09084619
申请日:1998-05-26
申请人: John M. DeMassa , Stephen M. Fagan
发明人: John M. DeMassa , Stephen M. Fagan
IPC分类号: C09K1522
摘要: A method for stabilizing an unsaturated polymerizable organic compound from premature polymerization includes addition thereto of an imidazoline or imidazolidine compound, optionally with ring substituents including hydroxyl, oxyl, or oxide moieties as well as aliphatic, alicyclic and/or heterocyclic moieties.
摘要翻译: 从过早聚合中稳定不饱和可聚合有机化合物的方法包括加入咪唑啉或咪唑烷化合物,任选具有环取代基,包括羟基,氧基或氧化物部分以及脂族,脂环族和/或杂环部分。
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公开(公告)号:US06172180B2
公开(公告)日:2001-01-09
申请号:US09140284
申请日:1998-08-25
IPC分类号: C08G7523
CPC分类号: C08G83/005 , C08G75/23 , C08G81/00 , C08G83/002 , C08L71/00 , C08L71/02
摘要: The present invention relates to a block copolymer containing 1-50 first polymer segments and 1-50 second polymer segments. Each first polymer segment has an average mole fraction of monomers possessing a branch point of 0.0001 to 1, whereas each second polymer segment has an average mole fraction of monomers possessing a branch point of 0 to 0.5. The average molecular weights range from 5-2,000 kDa for the first polymer segments, which constitute 5-95% by weight of the block copolymer. The average molecular weights also range from 5-2,000 kDa for the second polymer segments, which constitute 5-95% by weight of the block copolymer. The ratio of the average mole fraction of monomers possessing a branch point of the second polymer segments to that of the first polymer segments is 0 to 0.5. An example of such a copolymer has ethylene oxide or ethylene oxide/propylene oxide as the first polymer segment and polysulfone as the second polymer segment. This block copolymer can further be blended with a bulk polymer.
摘要翻译: 本发明涉及含有1-50个第一聚合物链段和1-50个第二聚合物链段的嵌段共聚物。 每个第一聚合物链段具有分支点为0.0001至1的单体的平均摩尔分数,而每个第二聚合物链段具有分支点为0至0.5的单体的平均摩尔分数。 第一聚合物链段的平均分子量范围为5-2,000kDa,占嵌段共聚物重量的5-95%。 对于第二聚合物链段,平均分子量也为5-2,000kDa,占嵌段共聚物重量的5-95%。 具有第二聚合物链段的分支点的单体的平均摩尔分数与第一聚合物链段的平均摩尔分数之比为0至0.5。 作为第二聚合物链段,这种共聚物的例子有环氧乙烷或环氧乙烷/环氧丙烷作为第一聚合物链段和聚砜。 该嵌段共聚物可进一步与本体聚合物共混。
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公开(公告)号:US5849929A
公开(公告)日:1998-12-15
申请号:US938895
申请日:1997-09-26
IPC分类号: C07D233/06 , C07D233/04 , C07D233/08
CPC分类号: C07D233/06
摘要: A process is provided for the preparation of imidazoline derivatives such as imidazoline nitroxyls and 1-hydroxy imidazoline.
摘要翻译: 提供一种制备咪唑啉衍生物如咪唑啉硝酰氧基和1-羟基咪唑啉的方法。
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