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    • 3. 发明授权
    • Settled solids process for preparing polyester copolymer resin
    • 用于制备聚酯共聚物树脂的沉淀固体方法
    • US5789479A
    • 1998-08-04
    • US744761
    • 1996-11-06
    • Lonzell Graham
    • Lonzell Graham
    • C08J3/05C08L67/00
    • C08J3/05C08J2367/00
    • The present invention relates to a process for preparing a dispersion of high grade polyester copolymer resin in water comprising 1) combining a crude polyester copolymer resin, having particles of various sizes, with water; 2) heating and agitating the resin/water mixture; 3) cooling the mixture; 4) allowing the mixture to stand undisturbed so that the largest, undispersed particles settle out as a sediment; 5) removing the sediment; and 6) continuously filtering the mixture, using progressively finer filters, leaving only the finest size particles. By using a plurality of filters and sequentially finer filter mesh sizes, a high grade product is attained.
    • 本发明涉及一种制备高级聚酯共聚物树脂在水中的分散体的方法,其包括:1)将具有各种尺寸的颗粒的粗聚酯共聚物树脂与水混合; 2)加热和搅拌树脂/水混合物; 3)冷却混合物; 4)使混合物不受干扰,使最大的未分散的颗粒作为沉淀物沉淀; 5)清除沉积物; 和6)使用逐渐更细的过滤器连续过滤混合物,仅留下最细粒度的颗粒。 通过使用多个过滤器和依次精细的过滤网尺寸,可获得高等级的产品。
    • 4. 发明授权
    • Continuous process for preparing polyester copolymer resin
    • 聚酯共聚树脂的连续工艺
    • US5891982A
    • 1999-04-06
    • US744768
    • 1996-11-06
    • Lonzell Graham
    • Lonzell Graham
    • C08J3/05C08G64/00
    • C08J3/05C08J2367/00
    • The present invention relates to a process for preparing a dispersion of high grade polyester copolymer resin in water comprising 1) combining a crude polyester copolymer resin, having particles of various sizes, with water; 2) heating and agitating the resin/water mixture; 3) cooling the mixture; 4) continuously filtering the mixture to remove the largest size resin particles; 5) allowing the mixture to stand undisturbed so that any undispersed particles settle out as a sediment; and 6) removing the sediment, leaving a dispersion of the smallest resin particles in water. By using a plurality of filters and sequentially finer filter mesh sizes, a high grade product is attained.
    • 本发明涉及一种制备高级聚酯共聚物树脂在水中的分散体的方法,其包括:1)将具有各种尺寸的颗粒的粗聚酯共聚物树脂与水混合; 2)加热和搅拌树脂/水混合物; 3)冷却混合物; 4)连续过滤混合物以除去最大尺寸的树脂颗粒; 5)允许混合物静置,以便任何未分散的颗粒作为沉淀物沉淀; 和6)去除沉淀物,留下最小树脂颗粒在水中的分散体。 通过使用多个过滤器和依次精细的过滤网尺寸,可获得高等级的产品。