SURFACE TREATMENT COMPOSITION
    5.
    发明申请

    公开(公告)号:US20200071883A1

    公开(公告)日:2020-03-05

    申请号:US16679660

    申请日:2019-11-11

    IPC分类号: D21H17/66 D21H17/60 D21H17/00

    摘要: A surface treatment composition for paper, board or other fibrous webs. The composition of the invention comprises particles which comprise an active material and a supporting material. The active material comprises a salt of a multivalent metal, such as a divalent or trivalent metal. In accordance with the invention, the supporting material is adapted to release the active material from the particles when subjected to heat and/or pressure and/or a change in pH. Consequently, the active material's adverse effects on the rheology of the composition are avoided while its desired effects on the surface characteristics are retained or enhanced.

    Surface treatment composition
    10.
    发明授权

    公开(公告)号:US11346052B2

    公开(公告)日:2022-05-31

    申请号:US16679660

    申请日:2019-11-11

    摘要: A surface treatment composition for paper, board or other fibrous webs. The composition of the invention comprises particles which comprise an active material and a supporting material. The active material comprises a salt of a multivalent metal, such as a divalent or trivalent metal. In accordance with the invention, the supporting material is adapted to release the active material from the particles when subjected to heat and/or pressure and/or a change in pH. Consequently, the active material's adverse effects on the rheology of the composition are avoided while its desired effects on the surface characteristics are retained or enhanced.