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    Modified-acrylate polymers and coating compositions made therefrom
    6.
    发明授权
    Modified-acrylate polymers and coating compositions made therefrom 失效
    改性丙烯酸酯聚合物和涂料组合物

    公开(公告)号：US5082922A

    公开(公告)日：1992-01-21

    申请号：US256614

    申请日：1988-10-12

    申请人： Larry B. Brandenburger ,  Philip J. Ruhoff

    发明人： Larry B. Brandenburger ,  Philip J. Ruhoff

    IPC分类号： C08G61/12 ,  C08F2/02 ,  C08F8/00 ,  C08G61/10 ,  C09D4/00 ,  C09D161/20

    CPC分类号： C09D4/00 ,  C08F2/02 ,  C08F8/00 ,  C09D161/20

    摘要： A method is provided for producing a modified addition polymer from an ethylenically unsaturated monomer composition that includes at least one monomer having hydroxyl or carboxyl functionality. The ethylenically unsaturated monomer composition, and a free radical initiator therefor, is dissolved in a solvent-free molten composition maintained at an addition polymerization temperature, the molten composition comprising a cyclic compound reactive via ring-opening with the hydroxyl or carboxyl functionality. The resulting material is useful in the manufacture of paints in liquid or powder form.

    摘要翻译： 提供了一种从包含至少一种具有羟基或羧基官能团的单体的烯属不饱和单体组合物制备改性加成聚合物的方法。 将烯属不饱和单体组合物及其自由基引发剂溶解在保持加成聚合温度的无溶剂的熔融组合物中，熔融组合物包含通过开环与羟基或羧基官能团反应的环状化合物。 所得材料可用于制造液体或粉末形式的油漆。

    Process for manufacturing medium and high molecular weight polyesters
    8.
    发明授权
    Process for manufacturing medium and high molecular weight polyesters 有权

    公开(公告)号：US09624342B2

    公开(公告)日：2017-04-18

    申请号：US12027233

    申请日：2008-02-06

    申请人： Larry B. Brandenburger ,  Thomas J. Melnyk

    发明人： Larry B. Brandenburger ,  Thomas J. Melnyk

    IPC分类号： C08G63/81

    CPC分类号： C08G63/81

    摘要： Medium and high molecular weight polyester polymers are prepared in syrup form from an ester oligomer. The oligomer is converted to the polymer by polycondensation at elevated pressure and elevated temperature in a nonreactive carrier capable of forming an azeotrope with water. The ester oligomerization or polycondensation reactions desirably are monitored using a non-viscometric technique. The process has a rapid cycle time. The syrup contains the polymer and nonreactive carrier, and may more conveniently be used to make initially non-solid products such as polyester coatings than is the case when employing pelletized solid polyester resins.