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    • 8. 发明申请
    • WATERBORNE COATING COMPOSITIONS
    • 水性涂​​料组合物
    • WO1997030097A1
    • 1997-08-21
    • PCT/US1997002676
    • 1997-02-14
    • PPG INDUSTRIES, INC.
    • PPG INDUSTRIES, INC.FALER, Dennis, L.FRANKS, James, R.MARTIN, Roxalana, L.
    • C08F283/01
    • D06P1/5271C08F283/01C09D151/08C09D167/06D06M15/507D06M15/51D06M23/08D06N3/121D06P1/44Y10T442/2361C08L2666/28
    • The present invention provides a waterborne coating composition which includes a polymeric film-forming resin. The polymeric film-forming resin includes a dispersion of polymeric microparticles prepared by forming, in aqueous medium, a mixture of: (a) an unsaturated, substantially hydrophobic polyester component, and (b) an ethylenically unsaturated monomer component. With various hydrophobic polyesters, the ethylenically unsaturated monomer component of the polymeric film-forming resin includes: (a) an acrylamide or methacrylamide with N-methylol or N-alkoxymethyl functionality, (b) an alpha-beta ethylenically unsaturated compound with carboxyl functionality, and (c) an alpha-beta ethylenically unsaturated compound with no additional reactive functionality. Such a waterborne coating composition has a low V.O.C., provides added stiffness, does not block, and can be applied in such a manner that is does not substantially mask the texture of the nonwoven fabrics and/or textiles over which it is applied. When the hydrophobic polyester is prepared with polycarboxylic acid and about 45 to 75 percent by weight 2,2,4-trimethyl-1,3-pentanediol, and about 0 to 23 percent by weight 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, various mixtures of ethylenically unsaturated monomer(s) can be used. The percents by weight are based on total weight of the substantially hydrophobic polyester mixtures of ethylenically unsaturated monomer(s). These are particularized into microparticles by high-stress techniques followed by polymerizing the polymerizable species to form the polymeric microparticles which are stably dispersed in the aqueous medium.
    • 本发明提供一种水性涂料组合物,其包含聚合物成膜树脂。 聚合物成膜树脂包括通过在水性介质中形成以下混合物制备的聚合物微粒的分散体:(a)不饱和的,基本上疏水的聚酯组分和(b)烯属不饱和单体组分的混合物。 对于各种疏水性聚酯,聚合物成膜树脂的烯属不饱和单体组分包括:(a)具有N-羟甲基或N-烷氧基甲基官能团的丙烯酰胺或甲基丙烯酰胺,(b)具有羧基官能团的α-β-烯属不饱和化合物, 和(c)不具有额外的反应性官能团的α-β烯键式不饱和化合物。 这种水性涂料组合物具有低的V.O.C。,提供增加的刚度,不阻断,并且可以以基本上不掩盖其所施加的无纺织物和/或织物的织构的方式施用。 当疏水性聚酯用多元羧酸制备时,约45-75%(重量)的2,2,4-三甲基-1,3-戊二醇和约0-23%(重量)的2-乙基-2-(羟甲基)-1 可以使用3-丙二醇,各种烯属不饱和单体的混合物。 重量百分数是基于烯属不饱和单体的基本疏水的聚酯混合物的总重量。 这些通过高应力技术特别化为微粒,然后聚合可聚合物质以形成稳定分散在水性介质中的聚合物微粒。