ESTERGRUPPENHALTIGE BLOCKPOLYMERE ALS ENTSCHÄUMER FÜR WÄSSRIGE SYSTEME
    5.
    发明授权
    ESTERGRUPPENHALTIGE BLOCKPOLYMERE ALS ENTSCHÄUMER FÜR WÄSSRIGE SYSTEME 失效
    ESTERGRUPPENHALTIGE BLOCKPOLYMERE ALSENTSCHÄUMERFÜRWÄSSRIGESYSTEME

    公开(公告)号:EP0719167B1

    公开(公告)日:1997-05-28

    申请号:EP94927567.1

    申请日:1994-09-06

    IPC分类号: B01D19/04 C08G63/664 C11D3/00

    摘要: A foam regulator that may be universally used in aqueous systems tending to foam has a good spontaneous effect in small amounts and keeps this effect for a long time. It may be adapted so that it is effective even at low temperatures while unfolding its effect through a wide temperature range. This foam regulator may be prepared as a pourable foam regulating agent and may also be incorporated into finished washing and cleaning products and be effective through a wide temperature range. When used in the paint and varnish industry, it allows a homogeneous coat of paint or varnish to be obtained, and in paper coating is produces a uniform coat of paint without surface irregularities. This foam regulator is an ester group-containing block polymer having the general formula: A-(CH2CH2O)n-B, in which n equals 4 to 300, A stands for a possibly polymer hydroxycarboxylic acid residue and B stands for hydrogen, an alkyl or alkenyl residue with 1 to 22 C atoms, a phenyl or benzyl residue or A. This polymer may be used as such or as a granulated, pourable foam regulating agent that contains 0.5 to 30 % by weight block polymer adsorbed in 70 % to 99.5 % by weight of a granulated, phosphate-free and water-soluble or water-dispersible carrier.

    摘要翻译: 泡沫调节剂可广泛应用于易于泡沫的含水体系中,具有良好的少量自发效应并长时间保持这种效果。 它可能会被调整使其即使在低温下也有效,同时在很宽的温度范围内展现其效果。 这种泡沫调节剂可制成可倾倒的泡沫调节剂,也可掺入成品洗涤和清洁产品中,并在宽温度范围内有效。 当用于油漆和清漆行业时,可以获得均匀的油漆或清漆涂层,并且在纸张涂层中可以产生均匀的油漆涂层而不会产生表面不规则。 该泡沫调节剂是具有通式:A-(CH 2 CH 2 O)n B的含酯基团的嵌段聚合物,其中n等于4至300,A代表可能的聚合物羟基羧酸残基,B代表氢,烷基或链烯基 具有1至22个碳原子的残基,苯基或苄基残基或A.该聚合物可以原样使用,或者作为粒状可倾倒泡沫调节剂使用,其含有按重量计70%至99.5%吸附的0.5至30%重量的嵌段聚合物 重量的粒状,无磷酸盐和水溶性或水分散性载体。