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    • 3. 发明授权
    • Emulsion copolymers from terminally unsaturated acrylic acid oligomers
    • 来自末端不饱和丙烯酸低聚物的乳液共聚物
    • US06248826B1
    • 2001-06-19
    • US09357176
    • 1999-07-16
    • Robert David SolomonGary David Greenblatt
    • Robert David SolomonGary David Greenblatt
    • C08F226
    • C08F290/046C01P2004/62C08F220/04C08F265/02C08F265/04C08F265/06
    • An aqueous dispersion of a copolymer formed by the emulsion polymerization of a monomer mixture including from 0.1 to 20% by weight of one or more terminally unsaturated carboxylic acid oligomers; from 80 to 99.9% by weight of at least two monomers selected from esters and amides of (meth)acrylic acid, vinyl esters of carboxylic acids, vinyl aromatic compounds, ethylenically unsaturated nitrites, vinyl halides, and non-aromatic hydrocarbons; and 0 to 10% by weight of other copolymerisable monomers is provided. The aqueous copolymer dispersion is polymerized in the presence of anionic surfactant and at an acid pH. Also provided is a method of preparing the aqueous copolymer dispersion. Aqueous copolymer dispersions including the terminally unsaturated carboxylic acid oligomers have low viscosities over a broad pH range and are useful in coating compositions, as binders for nonwovens, textiles, paper coatings, and as adhesives.
    • 通过包含0.1至20重量%的一种或多种末端不饱和羧酸低聚物的单体混合物的乳液聚合形成的共聚物的水分散体; 80至99.9重量%的选自(甲基)丙烯酸的酯和酰胺,羧酸的乙烯基酯,乙烯基芳族化合物,烯键式不饱和亚硝酸酯,乙烯基卤化物和非芳族烃的至少两种单体; 并提供0至10重量%的其它可共聚单体。 含水共聚物分散体在阴离子表面活性剂的存在下和在酸性pH下聚合。 还提供了制备水性共聚物分散体的方法。 包括末端不饱和羧酸低聚物的水性共聚物分散体在宽的pH范围内具有低粘度,并且可用于涂料组合物,作为无纺布,纺织品,纸涂料和粘合剂的粘合剂。