Invention Grant
- Patent Title: Method for preparing thermochromic water-based gel ink compositions, and thermochromic water-based gel ink compositions thereof
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Application No.: US17997497Application Date: 2021-04-28
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Publication No.: US11920047B2Publication Date: 2024-03-05
- Inventor: Alexander Bourque , Aurore Sauvage
- Applicant: SOCIÉTÉ BIC
- Applicant Address: FR Clichy
- Assignee: SOCIÉTÉ BIC
- Current Assignee: SOCIÉTÉ BIC
- Current Assignee Address: FR Clichy
- Agency: Bookoff McAndrews, PLLC
- Priority: EP 305424 2020.04.30
- International Application: PCT/EP2021/061187 2021.04.28
- International Announcement: WO2021/219753A 2021.11.04
- Date entered country: 2022-10-28
- Main IPC: C09D11/50
- IPC: C09D11/50 ; B43K7/00 ; B43K8/02 ; C09D11/17
Abstract:
A method for preparing a thermochromic water-based gel ink composition, as well as a thermochromic water-based gel ink composition thereof comprising a specific monocarboxylic or polycarboxylic acid. A writing instrument, such as a ballpoint pen, a brush pen, a marker, a highlighter, and a felt pen, comprising a thermochromic water-based gel ink composition according to the disclosure.
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Information query
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