CASTOR OIL DERIVED HYDROXY FUNCTIONAL ACRYLIC COPOLYMERS FOR SURFACE COATING APPLICATIONS
    7.
    发明授权
    CASTOR OIL DERIVED HYDROXY FUNCTIONAL ACRYLIC COPOLYMERS FOR SURFACE COATING APPLICATIONS 有权
    用于表面涂层的蓖麻油衍生的羟基功能性丙烯酸共聚物

    公开(公告)号:EP2999726B1

    公开(公告)日:2017-07-19

    申请号:EP13821191.7

    申请日:2013-07-22

    申请人: Asian Paints Ltd.

    IPC分类号: C08F242/00 C09D125/14

    摘要: Acrylic polyols comprising hydroxy functional acrylic copolymers/resin involving an acrylic backbone having modified castor oil sourced hydroxyl functionalities and synthesized by co-reacting modified hydroxy functional Castor Oil with variety of acrylic monomers, styrene or its derivatives and optionally hydroxyalkyl acrylates/methacrylates and ethylenic monomer through solution polymerization in presence of an initiator. The hydroxyl functionality is solely or partially imparted through renewable Castor Oil wherein the resins were synthesized at upto 100% solids and at hydroxyl values ranging from 25-150 (mg KOH/gm). The synthesized resins when cured with suitable polyisocyanates or amino resin cross-linkers provided tough, glossy and chemical & weather resistant coatings.

    摘要翻译: 包含羟基官能丙烯酸类共聚物/树脂的丙烯酸多元醇,所述丙烯酸类骨架具有改性蓖麻油来源的羟基官能团并且通过改性羟基官能蓖麻油与各种丙烯酸类单体,苯乙烯或其衍生物和任选羟基烷基丙烯酸酯/甲基丙烯酸酯和烯属单体 通过在引发剂存在下的溶液聚合。 羟基官能团通过可再生蓖麻油完全或部分赋予,其中树脂在高达100%固体和羟值为25-150(mg KOH / gm)范围内合成。 用合适的多异氰酸酯或氨基树脂交联剂固化时,合成树脂提供了坚韧,光泽和耐化学和耐候性涂料。