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    • 11. 发明授权
    • Diimines and secondary diamines
    • 二亚胺和仲胺
    • US07767858B2
    • 2010-08-03
    • US11855839
    • 2007-09-14
    • Paul L. WigginsJudit OrgadJohn Y. LeeMahmood Sabahi
    • Paul L. WigginsJudit OrgadJohn Y. LeeMahmood Sabahi
    • C07C209/26
    • C07C211/12C07C211/51C08G18/10C08G18/3234C08G18/324C08G18/325C08G18/5024C08G18/6685C08G18/7671Y02P20/582
    • This invention provides aromatic diimines which have imino hydrocarbylidene groups with at least two carbon atoms, and aromatic secondary diamines which have amino hydrocarbyl groups with at least two carbon atoms. Both the aromatic diimines and the aromatic secondary diamines either are in the form of one phenyl ring, or are in the form of two phenyl rings connected by an alkylene bridge; each position ortho to an imino group or an amino group bears a hydrocarbyl group. When in the form of one phenyl ring, there are two imino groups on the ring or two amino groups on the ring; the imino groups or amino groups are meta or para relative to each other. When in the form of two phenyl rings connected by an alkylene bridge, there is either one imino group or one amino group on each phenyl ring. Also provided are processes for forming diimines and secondary diamines.
    • 本发明提供具有至少两个碳原子的亚氨基亚烃基的芳族二亚胺和具有至少两个碳原子的氨基烃基的芳族仲二胺。 芳族二亚胺和芳族仲胺都是一个苯环的形式,或者是由亚烷基桥连接的两个苯环的形式; 亚氨基或氨基的邻位各为一个烃基。 当以一个苯环的形式,环上有两个亚氨基或环上两个氨基; 亚氨基或氨基相对于彼此是间位或对位的。 当以亚烷基桥连接的两个苯环的形式,每个苯环上有一个亚氨基或一个氨基。 还提供了形成二亚胺和仲二胺的方法。
    • 13. 发明申请
    • Diimines and Secondary Diamines
    • 二亚胺和二胺
    • US20080194788A1
    • 2008-08-14
    • US11909824
    • 2005-12-30
    • John Y. LeePaul L. WigginsJudit OrgadMahmood SabahiVernon O. BrandtDavid W. Owens
    • John Y. LeePaul L. WigginsJudit OrgadMahmood SabahiVernon O. BrandtDavid W. Owens
    • C08G18/00C07C211/49C07C249/02
    • C07C211/12C07C211/51C08G18/10C08G18/3234C08G18/324C08G18/325C08G18/5024C08G18/6685C08G18/7671Y02P20/582
    • This invention provides aromatic diimines where the diimines have imino groups with at least two carbon atoms, and either are in the form of one benzene ring having two imino groups on the ring, which imino groups are meta or para relative to each other, and in which each position ortho to an imino group bears a hydrocarbyl group, or are in the form of two benzene rings connected by an alkylene bridge and having one imino group on each ring, and in which each position ortho to an imino group bears a hydrocarbyl group. This invention also provides aromatic secondary diamines where the diamines have amino hydrocarbyl groups with at least two carbon atoms, and either are in the form of one benzene ring having two amino groups on the ring, which amino groups are meta or para relative to each other, and in which each position ortho to an amino group bears a hydrocarbyl group, or are in the form of two benzene rings connected by an alkylene bridge and having one amino group on each ring, and in which each position ortho to an amino group bears a hydrocarbyl group. Also provided are processes for forming diimines and secondary diamines from primary diamines, including the aromatic diimines and aromatic secondary diamines of the invention.
    • 本发明提供芳族二亚胺,其中二亚胺具有至少两个碳原子的亚氨基,并且是环上具有两个亚氨基的一个苯环的形式,该亚氨基相对于彼此是间位或对位的,并且在 其中每个位于亚氨基的邻位具有烃基,或者是由亚烷基桥连接并在每个环上具有一个亚氨基的两个苯环的形式,并且其中亚氨基的邻位各有一个烃基 。 本发明还提供芳族仲二胺,其中二胺具有至少两个碳原子的氨基烃基,并且是环上具有两个氨基的一个苯环的形式,该氨基相对于彼此是间位或对位的 并且其中氨基的每个位置具有烃基,或者为两个苯环的形式,其通过亚烷基桥连接并且在每个环上具有一个氨基,并且其中氨基的邻位各自承载 烃基。 还提供了由伯二胺形成二亚胺和仲二胺的方法,包括本发明的芳族二亚胺和芳族仲二胺。
    • 15. 发明授权
    • Process for purifying a 2,6-dialkylphenol
    • 纯化2,6-二烷基苯酚的方法
    • US5705039A
    • 1998-01-06
    • US542612
    • 1995-10-13
    • Sam F. ClarkeVenkataraman RamachandranJ. Steve StatonPaul L. Wiggins
    • Sam F. ClarkeVenkataraman RamachandranJ. Steve StatonPaul L. Wiggins
    • B01D3/14C07C37/74B01D3/00C07C37/68
    • B01D3/146C07C37/685C07C37/74Y10S203/07Y10S203/09
    • Impure 2,6-diisopropylphenol (DIP) is purified by use of a distillation process in which a single distillation column is used. The process comprises: (a) subjecting the impure DIP to a first continuous distillation in the column in an inert environment to distill off lower boiling components and produce first column bottoms enriched in DIP; (b) collecting, cooling and storing the first column bottoms while continuously maintaining them in an inert environment; (c) discontinuing the first continuous distillation; (d) subjecting the first column bottoms to a second continuous distillation in an inert environment in the same column to produce a second overhead distillate composed of purified DIP. The process avoids the formation in the distilling mixtures of dose boiling impurities due to seepage of air through standard pipe flanges and fittings and consequent oxidation reactions which occur under the conditions needed for batch distillations conducted in typical industrial distillation facilities. These impurities include 2,6-diisopropylbenzoquinone, 2-isopropyl-6-isopropenylphenol, 2,6-diisopropenylphenol and 2,2-dimethyl-4-isopropyl-1,3-benzodioxole. The capital investment needed for a conventional continuous distillation facility is also avoided.
    • 不纯的2,6-二异丙基苯酚(DIP)通过使用其中使用单个蒸馏塔的蒸馏方法纯化。 该方法包括:(a)使惰性DIP在惰性环境中在柱中进行第一次连续蒸馏以蒸馏掉低沸点组分并产生富含DIP的第一塔底物; (b)收集,冷却和储存第一塔底,同时将其保持在惰性环境中; (c)停止第一次连续蒸馏; (d)在同一塔的惰性环境中对第一塔底部进行第二次连续蒸馏以产生由纯化的DIP组成的第二塔顶馏出物。 该过程避免了在典型工业蒸馏设备中进行的批次蒸馏所需的条件下,由于通过标准管道法兰和配件的空气渗漏导致的沸腾杂质的蒸馏混合物中的形成以及随之而来的氧化反应。 这些杂质包括2,6-二异丙基苯醌,2-异丙基-6-异丙烯基苯酚,2,6-二异丙烯基苯酚和2,2-二甲基-4-异丙基-1,3-苯并间二氧杂环戊烯。 也避免了常规连续蒸馏设备所需的投资。