A proces for sequestration of water hardness ions
    27.
    发明公开
    A proces for sequestration of water hardness ions 失效
    韦尔法罕zur Sequestrierung von Ionen在harten Wasser

    公开(公告)号:EP0878446A1

    公开(公告)日:1998-11-18

    申请号:EP98112579.2

    申请日:1994-01-25

    IPC分类号: C02F5/10 C08F222/02

    摘要: Described is a process for sequestration of water hardness ions, comprising the step of adding to aqueous media containing water hardness ions an effective amount of a maleate copolymer having a weight average molecular weight of 500 to 7,000, a residual total monomer content of less than 1 %, on a maleate copolymer dry weight basis, and comprising at least 50 mole percent of maleate monomer, whereby at least 70 mole percent of the carboxylic acid charge on the maleate monomer is neutralized prior to polymerization, and 10 to 50 mole percent of acrylate monomer.

    摘要翻译: 马来酸酯共聚物包含少于1%的剩余总游离单体,重均分子量为500-7,000。 共聚物包含至少50摩尔%的马来酸酯,10至50摩尔%的丙烯酸酯单体,优选约1至10摩尔%的至少一种非离子共聚单体。 该共聚物可用于抑制水硬度离子在洗涤剂中的沉积,并用作水性浆料中的分散剂。 通过水溶液聚合方法制备共聚物,其包括以下步骤:首先以马来酸酐单体摩尔为基础中和至少70%的马来酸酯单体的电荷,然后缓慢加入至少一种可聚合的共聚单体,以及氧化 自由基引发剂和合适的金属离子还原剂,在80-100℃下在至少3小时内合成,然后加入更多的引发剂。

    Detergent composition
    28.
    发明公开
    Detergent composition 失效
    洗涤剂组成

    公开(公告)号:EP0869169A1

    公开(公告)日:1998-10-07

    申请号:EP98112603.0

    申请日:1994-01-25

    IPC分类号: C11D3/00 C11D3/37

    摘要: Described is a detergent composition comprising 5 to 80% soda ash, 5 to 24% surfactant and 0.5 to 25% maleate copolymer, the maleate copolymer being characterized by a weight average molecular weight of 500 to 7,000, a residual total monomer content of less than 1%, on a copolymer dry weight basis, and consisting essentially of at least 50 mole percent of maleate monomer, whereby at least 70 mole percent of the carboxylic acid charge on the maleate monomer is neutralized prior to polymerization, 10 to 50 mole percent of acrylate monomer and 1 to 10 mole percent of a nonionic comonomer, wherein the detergent composition comprising the maleate copolymer inhibits deposition of water hardness salts and is characterized by improved detergency, relative to the detergent composition without the maleate copolymer.

    摘要翻译: 描述了一种洗涤剂组合物,其包含5-80%苏打灰,5-24%表面活性剂和0.5-25%马来酸酯共聚物,该马来酸酯共聚物的特征在于重均分子量为500-7,000,残余总单体含量小于 1%,基于共聚物干重,并且基本上由至少50摩尔%的马来酸酯单体组成,由此在聚合之前,马来酸酯单体上的至少70摩尔%的羧酸电荷被中和,10-50摩尔%的 丙烯酸酯单体和1-10摩尔%的非离子共聚单体,其中相对于不含马来酸酯共聚物的洗涤剂组合物,包含马来酸酯共聚物的洗涤剂组合物抑制水硬度盐的沉积并且特征在于改善的去污力。

    Multifunctional maleate polymers
    29.
    发明公开
    Multifunctional maleate polymers 失效
    Multifunktionale Maleat Polymere。

    公开(公告)号:EP0608845A2

    公开(公告)日:1994-08-03

    申请号:EP94101078.7

    申请日:1994-01-25

    摘要: Maleate copolymers comprise less than 1% residual total free monomer and have a weight average molecular weight of 500 to 7,000. The copolymer comprises at least 50 mole percent maleate, 10 to 50 mole percent acrylate monomer and, preferably, about 1 to 10 mole percent of at least one non-ionic comonomer. The copolymers are useful in inhibiting deposition of water hardness ions, in detergents and as dispersants in aqueous slurries. Copolymers are prepared by an aqueous solution polymerization process, comprising the steps of initially neutralizing at least 70%, on a molar basis, of the charge of a maleate monomer, followed by the slow addition of at least one polymerizable comonomer, together with an oxidative free radical initiator and a suitable metallic ion reductant, for synthesis over at least a three hour period at 80 to 100°C, followed by the addition of more initiator.

    摘要翻译: 马来酸酯共聚物包含少于1%的剩余总游离单体,重均分子量为500-7,000。 共聚物包含至少50摩尔%的马来酸酯,10至50摩尔%的丙烯酸酯单体,优选约1至10摩尔%的至少一种非离子共聚单体。 该共聚物可用于抑制水硬度离子在洗涤剂中的沉积,并用作水性浆料中的分散剂。 通过水溶液聚合方法制备共聚物,其包括以下步骤:首先以马来酸酐单体摩尔为基础中和至少70%的马来酸酯单体的电荷,然后缓慢加入至少一种可聚合的共聚单体,以及氧化 自由基引发剂和合适的金属离子还原剂,在80-100℃下在至少3小时内合成,然后加入更多的引发剂。