AQUEOUS DUAL-COMPONENT WOODWARE SEALING PRIMER

    公开(公告)号:EP4116385A1

    公开(公告)日:2023-01-11

    申请号:EP21764745.2

    申请日:2021-03-02

    发明人: CHEN, Hong YANG, Wei

    IPC分类号: C09D163/00 C09D5/00

    摘要: The present application is directed to a two-component waterborne wood sealing primer, including: Component A: a film-forming resin composition including an aqueous epoxy resin emulsion; and Component B: an aqueous curing system including an epoxy reactive curing agent, a filling slurry, and an additional additive; and wherein no organic solvent is added during the preparation process of the two-component waterborne wood sealing primer, and the two-component waterborne wood sealing primer has a solid content during application in the range of 45-50wt% and a VOC content of 80 g/L or less.

    ACID-CURED COATING COMPOSITION WITH LOW FREE FORMALDEHYDE EMISSION AND PREPARATION METHOD THEREOF

    公开(公告)号:EP3647383A1

    公开(公告)日:2020-05-06

    申请号:EP19206041.6

    申请日:2019-10-29

    发明人: YANG, Wei TAO, Jie

    IPC分类号: C09D167/08

    摘要: The present disclosure refers to an acid-cured coating composition with low free formaldehyde emission and preparation method thereof. The acid-cured coating composition comprises an alkyd resin, an amino resin, and an acetoacetyl-functional silicon-based resin, wherein upon curing, the amino resin itself releases at least 0.8 wt% of formaldehyde, based on the weight of the amino resin; weight ratio of the alkyd resin and the amino resin is in a range of from 70:30 to 45:55. The present disclosure also refers to a coated article.