公开(公告)号：US5466870A

公开(公告)日：1995-11-14

申请号：US286844

申请日：1994-08-05

申请人： Larry E. Miller ,  Gene P. Hawkins ,  Bernard G. Durham

发明人： Larry E. Miller ,  Gene P. Hawkins ,  Bernard G. Durham

IPC分类号： B01F17/16 ,  C07C291/04 ,  C11D1/75 ,  C07C

CPC分类号： C07C291/04

摘要： Amine oxide surfactants contaminated with nitrite are treated under acidic conditions with materials such as maleic acid and diethylenetriaminepentaacetate (DTPA) to reduce nitrite levels below 1 ppm. Thus, C.sub.12-13 dimethyl amine is oxidized with hydrogen peroxide in the presence of maleic acid and DTPA to reduce nitrite levels. The resulting nitrite-free amine oxide is employed in various detergent compositions.

摘要翻译： 用亚硝酸盐污染的氧化亚胺表面活性剂在酸性条件下用马来酸和二亚乙基三胺五乙酸酯（DTPA）等物质处理，以将亚硝酸盐含量降至1ppm以下。 因此，在马来酸和DTPA存在下，用过氧化氢氧化C12-13二甲基胺以降低亚硝酸盐含量。 所得到的无亚硝酸盐氧化胺用于各种洗涤剂组合物中。

公开(公告)号：US5498373A

公开(公告)日：1996-03-12

申请号：US472793

申请日：1995-06-07

申请人： Larry E. Miller ,  Gene P. Hawkins ,  Bernard G. Durham

发明人： Larry E. Miller ,  Gene P. Hawkins ,  Bernard G. Durham

IPC分类号： B01F17/16 ,  C07C291/04 ,  C11D1/75

CPC分类号： C07C291/04

摘要： Amine oxide surfactants contaminated with nitrite are treated under acidic conditions with materials such as maleic acid and diethylenetriaminepentaacetate (DTPA) to reduce nitrite levels below 1 ppm. Thus, C.sub.12-13 dimethyl amine is oxidized with hydrogen peroxide in the presence of maleic acid and DTPA to reduce nitrite levels. The resulting nitrite-free amine oxide is employed in various detergent compositions.

公开(公告)号：US5583258A

公开(公告)日：1996-12-10

申请号：US388780

申请日：1995-02-15

申请人： Gene P. Hawkins

发明人： Gene P. Hawkins

IPC分类号： C07C291/04 ,  C11D1/75

CPC分类号： C07C291/04 ,  C11D1/75

摘要： Mono-long chain amine oxide surfactants can be prepared containing active levels of greater than about 30%, by weight of amine, and with low nitrite and nitrosamine levels when oxidized in the presence of bicarbonate material present at levels less than about 2.5%, by weight of amine, and without the presence of phase-modifying solvents.

摘要翻译： 可以制备单长链氧化胺表面活性剂，其含有大于约30重量％的胺的活性水平，并且当以低于约2.5％的水平存在的碳酸氢盐存在下氧化时，亚硝酸盐和亚硝胺含量低 胺的重量，并且不存在相变化溶剂。