Bleaching agent
    51.
    发明授权
    Bleaching agent 失效
    漂白剂

    公开(公告)号:US5846922A

    公开(公告)日:1998-12-08

    申请号:US700415

    申请日:1996-08-23

    摘要: The invention relates to particles having a core comprising a peroxy compound with capability of releasing hydrogen peroxide or peroxy acids in aqueous solutions, which particles have a coating containing a chelating agent selected from alkali metal salts or alkaline earth metal salts of a hydroxy carboxylic acid satisfying the formula: RC.sub.n H.sub.m (OH).sub.n COOH in which R is CH.sub.2 OH or COOH, n is 2-6 and m is 0-n. The invention also relates to preparation and use of the particles, as well as a composition containing such particles.

    摘要翻译: PCT No.PCT / SE95 / 00085 Sec。 371日期:1996年8月23日 102(e)日期1996年8月23日PCT提交1995年1月30日PCT公布。 出版物WO95 / 23210 日期1995年8月31日本发明涉及具有核心的颗粒,其包含具有在水溶液中释放过氧化氢或过氧酸的能力的过氧化合物,该颗粒具有包含螯合剂的涂层,所述螯合剂选自碱金属盐或碱土金属盐 满足式RCnHm(OH)nCOOH的羟基羧酸,其中R是CH 2 OH或COOH,n是2-6,m是0-n。 本发明还涉及颗粒的制备和使用,以及含有这种颗粒的组合物。

    Method for preparing dimethylcarboxylic acid compounds
    52.
    发明授权
    Method for preparing dimethylcarboxylic acid compounds 失效
    二甲基羧酸化合物的制备方法

    公开(公告)号:US5716815A

    公开(公告)日:1998-02-10

    申请号:US670070

    申请日:1996-06-25

    CPC分类号: C12P7/42

    摘要: A method for preparing dimethylolcarboxylic acid derivatives represented by general formula (1) ##STR1## (wherein R is a hydrogen atom, an amino group, an alkyl group, or an alkyl group having a hydroxyl group) to react with a culture broth, cells or a processed cell product of a microorganism belonging to the genus Rhodococcus or Agrobacterium having an ability to oxidize a methylol group of the tris(hydroxymethyl) derivative represented by general formula (2) ##STR2## wherein R has the same meaning as defined above. According to this invention, dimethylolcarboxylic acid derivatives can be produced efficiently under mild conditions by using microorganisms belonging to the genus Rhodococcus or Agrobacterium and having an ability to oxidize tris(hydroxy-methyl) derivatives to produce dimethylolcarboxylic acid derivatives.

    摘要翻译: 制备由通式(1)表示的二羟甲基羧酸衍生物的方法(1)(其中R是氢原子,氨基,烷基或具有羟基的烷基)与培养物反应 培养液,细胞或属于红球菌属的微生物或农杆菌的加工细胞产物,其具有氧化由通式(2)表示的三(羟甲基)衍生物的羟甲基的能力。(2)其中R具有 与上述定义相同。 根据本发明,通过使用属于红球菌属或土壤杆菌属的微生物并且具有氧化三(羟甲基)衍生物以产生二羟甲基羧酸衍生物的能力,可以在温和条件下有效地制备二羟甲基羧酸衍生物。

    Process for preparing a pumpable surface-active product based on
polyester acetic acid
    55.
    发明授权
    Process for preparing a pumpable surface-active product based on polyester acetic acid 失效
    基于聚酯乙酸制备可泵送表面活性产品的方法

    公开(公告)号:US4421930A

    公开(公告)日:1983-12-20

    申请号:US294041

    申请日:1981-08-18

    CPC分类号: B01F17/0021 C09K8/58

    摘要: A process for preparing a pumpable surface active product based on polyether acetic acid is described, wherein 1-10% water and an acid is added to a crude reaction mixture obtained by reacting in an alkaline medium an adduct of the formula RO--(C.sub.2 H.sub.4 O).sub.x H with a compound Hal--CH.sub.2 COOM, wherein R is a hydrophobic, aliphatic or aliphatic-aromatic residue, x is a number having an average value of 0.5-10, Hal is a halogen atom and M represents an alkali metal, the amount of acid added being such that a 10-percent aqueous solution of the product shows a pH of 4-7. Preferably about 7% of water is added and also it is preferred to add so much acid that a pH of about 5-6 is obtained.

    摘要翻译: 描述了一种用于制备基于聚醚乙酸的可泵送表面活性产物的方法,其中将1-10%的水和酸加入到通过在碱性介质中通过式RO-(C 2 H 4 O)的加合物反应获得的粗反应混合物中, xH与化合物Hal-CH 2 COOM,其中R是疏水性,脂族或脂族 - 芳族残基,x是平均值为0.5-10的数,Hal是卤素原子,M表示碱金属, 酸加入使得产物的10%水溶液显示4-7的pH。 优选加入约7%的水,并且优选添加如此多的酸,得到约5-6的pH。