ALCOHOL-BASED DRY ERASABLE INK FOR WRITING INSTRUMENT

    公开(公告)号:US20210395542A1

    公开(公告)日:2021-12-23

    申请号:US17280002

    申请日:2019-09-23

    申请人: Société BIC

    发明人: Carine BETHOUART

    IPC分类号: C09D11/17

    摘要: There is an alcohol-based dry erasable ink for writing instrument having as separating agent, more specifically as the only separating agent, a mixture of a pentaerythritol tetraester (a1), a fatty acid monoester (a2) and a fatty acid diester (a3). There also is a writing instrument having an alcohol-based dry erasable ink.

    WASHABLE INK COMPOSITION
    4.
    发明公开

    公开(公告)号:US20230365825A1

    公开(公告)日:2023-11-16

    申请号:US18248013

    申请日:2021-10-04

    申请人: SOCIÉTÉ BIC

    发明人: Carine BETHOUART

    IPC分类号: C09D11/17

    CPC分类号: C09D11/17

    摘要: The present invention concerns a washable aqueous ink composition comprising: a) at least one salt of monocarboxylic or polycarboxylic acid with from 3 to 8 carbon atoms, 5b) at least one salt of polyacrylic acid, c) at least one dye. It also concerns a writing instrument comprising it and the use of the association of a) at least one salt of monocarboxylic or polycarboxylic acid with from 3 to 8 carbon and b) at least one salt of polyacrylic acid, to improve the washability 10 and/or vividness of the shades of a washable aqueous ink composition

    WRITING INSTRUMENT
    7.
    发明申请

    公开(公告)号:US20230001736A1

    公开(公告)日:2023-01-05

    申请号:US17808633

    申请日:2022-06-24

    申请人: Société BIC

    IPC分类号: B43K1/00 B43K5/18

    摘要: A free-ink writing instrument mat include a nib drying delay component to prevent drying out of the end of the nib of the writing instrument that is located in the writing ink tank thereof. The nib drying delay component is locally arranged around the end of the nib in a liquid tight manner and configured to locally retain ink therein so as to keep the nib end in contact with locally retained ink.

    WASHABLE INK COMPOSITION
    8.
    发明公开

    公开(公告)号:US20230383132A1

    公开(公告)日:2023-11-30

    申请号:US18248009

    申请日:2021-10-04

    申请人: SOCIÉTÉ BIC

    发明人: Carine BETHOUART

    IPC分类号: C09D11/16

    CPC分类号: C09D11/16

    摘要: The present invention concerns a washable aqueous ink composition comprising: a) at least one alkali metal salt of citrate, b) at least one cyclodextrin or derivative thereof, c) at least one dye. It also concerns a writing instrument comprising it and the use of the association of a) at least one alkali metal salt of citrate and b) at least one cyclodextrin or derivative thereof, to improve the washability and/or vividness of the shades of a washable aqueous ink composition.

    PEELABLE WRITING INK COMPOSITION WITH COLOR-CHANGING FOR WRITING POROUS SUBSTRATES

    公开(公告)号:US20230312954A1

    公开(公告)日:2023-10-05

    申请号:US18043245

    申请日:2021-08-30

    申请人: SOCIÉTÉ BIC

    发明人: Carine BETHOUART

    IPC分类号: C09D11/17 C09D175/04

    CPC分类号: C09D11/17 C09D175/04

    摘要: The present disclosure concerns a writing ink composition comprising:



    (a) at least one film-forming elastomeric polymer wherein the film-forming elastomeric polymer (a) is an homopolymer or copolymer of polyurethane,
    (b) at least one polyether-modified polysiloxane,
    (c) at least one dye,
    (d) at least one pigment, and
    (e) water.




    The disclosure also concerns a method for preparing such a writing ink composition. A writing instrument comprising such a writing ink composition, and a method for writing on a writing porous substrate, are also part of the disclosure. Finally, the disclosure aims at a writing porous substrate coated with a writing ink composition according to the disclosure.