-
公开(公告)号：EP0172602A1
公开(公告)日：1986-02-26
申请号：EP85301076.7
申请日：1985-02-19
IPC分类号： C11D3/39
CPC分类号： C11D3/3932
摘要： It has been suggested hitherto that the bleaching performance of hydrogen peroxide or persalts developing it in s i tu at ambient to hand hot (e.g. up to 60°C) temperatures can be enhanced by addition of a transition metal catalyst, but recent investigations revealed that when manganese is selected as catalyst its performance can range from nil enhancement to a substantial improvement.
The present invention is based upon the recognition that manganese catalysis of hydrogen peroxide is promoted by the presence of at least an equimolar amount of calcium; barium or strontium compound, and preferably a molar ratio of at least 50:1.-
公开(公告)号：EP0196738B1
公开(公告)日：1988-06-22
申请号：EP86300380.2
申请日：1986-01-20
发明人： Baxter, Paul Leslie
IPC分类号： C11D3/39
CPC分类号： C11D3/3932
-
公开(公告)号：EP0172602B1
公开(公告)日：1988-01-07
申请号：EP85301076.7
申请日：1985-02-19
IPC分类号： C11D3/39
CPC分类号： C11D3/3932
-
公开(公告)号：EP0239294A1
公开(公告)日：1987-09-30
申请号：EP87302171.1
申请日：1987-03-13
IPC分类号： C11D3/39 , C07C179/10
CPC分类号： C11D3/3945 , C11D3/30 , C11D3/39
摘要： Under conditions of misuse, water-soluble peroxyacids when they are left in direct contact with dyed fabrics can cause spotting and dye damage. The problem can be ameliorated by surface-treating the peroxyacid with an effective amount, preferably selected in the range of 8 to 25% w/w based on the peroxyacid, of aliphatic amines which melt or soften at about 30 to 70°C. Preferred agents include hydrogenated tallow amine dicocoamine and methyl dihydrogenated tallow amine. The agent can be applied in molten fashion or in inert solvent such as a chlorinated aliphatic hydrocarbon onto agitated particles of the peroxyacid.
摘要翻译： 在误用条件下，水溶性过氧酸当与染色织物直接接触时会导致染色和染料损伤。 通过在约30-70℃熔化或软化的脂族胺表面处理过氧酸，可有效量，优选在8至25％w / w范围内以过氧酸为基准进行表面处理来改善该问题。 试剂包括氢化牛油胺二油酸和甲基二氢化牛油胺。 该试剂可以以熔融方式或在诸如氯化脂族烃的惰性溶剂中施用到过氧酸的搅拌颗粒上。
-
公开(公告)号：EP0196738A1
公开(公告)日：1986-10-08
申请号：EP86300380.2
申请日：1986-01-20
发明人： Baxter, Paul Leslie
IPC分类号： C11D3/39
CPC分类号： C11D3/3932
摘要： The bleaching performance of hydrogen peroxide or persalts developing it in situ is markedly lower at lower washing temperatures from ambient to 60°C than at hot washing temperatures of around 90°C or above.
The present invention relates to compositions and processes employing a minor amount of mixed oxides of calcium, barium or strontium with manganese which activate hydrogen peroxide bleaching and washing of stains at lower wash temperatures in spite of the fact that the compounds are substantially water-insoluble.
-
-
-
-
搜索结果
5 条记录 (耗时 0.011 秒)
