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    • 2. 发明公开
    • 폴리에스터 수지 수성 분산체 및 그 제조방법
    • 水性聚酯树脂分散体及其生产方法
    • KR1020050075757A
    • 2005-07-21
    • KR1020057006984
    • 2003-10-21
    • 유니티카 가부시끼가이샤
    • 가지마루히로시나가라요시타카마츠나가마미코시라사와다이스케고쿠료사치코
    • C08L67/00C08J3/07
    • C08J3/07C08J3/05C08J2367/00
    • An aqueous polyester resin dispersion, which comprises a polyester resin (A) having an acid value of 2 to 8 mg- KOH/g and a number average molecular weight of 5,000 or more, a basic compound (B) and water (C), wherein it contains the polyester resin (A) in a content of 1 to 70 mass %, water (C) in a content of 10 mass % or more, and no surfactant; and a method for producing the aqueous polyester resin dispersion through phase conversion emulsification, which comprises effecting the phase conversion emulsification at a temperature of 40°C or lower. The aqueous polyester resin dispersion has a low acid value and a high molecular weight and is excellent in storage stability, and can be used for forming a resin coating film being excellent in coating film characteristics such as adhesion to a substrate, the resistance to water and a solvent, and processability.
    • 一种水性聚酯树脂分散体,其包含酸值为2〜8mg-KOH / g,数均分子量为5,000以上的碱性化合物(B)和水(C)的聚酯树脂(A) 其中含有1〜70质量%的聚酯树脂(A),10质量%以上的水(C),无表面活性剂; 以及通过相转化乳化来生产水性聚酯树脂分散体的方法,其包括在40℃或更低的温度下进行相转化乳化。 水性聚酯树脂分散体的酸值低,分子量高,保存稳定性优异,可以用于形成涂膜特性优异的树脂涂膜,例如对基材的粘合性,耐水性, 溶剂和加工性。