公开(公告)号：US20240301225A1

公开(公告)日：2024-09-12

申请号：US18547656

申请日：2022-02-24

Applicant: SOCIÉTÉ BIC ,  UNIVERSITÉ DE HAUTE-ALSACE ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

Inventor： Karine MOUGIN ,  Guillaume CAFFIER ,  Feriel GHELLAL ,  Arnaud SPANGENBERG ,  Quentin BAUERLIN

IPC: C09D11/17 ,  C09D9/00 ,  C09D11/20 ,  C09D11/50

CPC classification number: C09D11/17 ,  C09D9/00 ,  C09D11/20 ,  C09D11/50

Abstract: The present invention concerns a kit comprising a) an aqueous writing ink composition, containing—metal nanoparticles as coloring agent wherein said metal nanoparticles essentially consists of metal and said metal is chosen from silver, gold, aluminum and/or copper and—a dispersing agent, and b) an eradicator fluid containing at least one oxidizing agent. It also concerns an aqueous eradicator fluid for erasing an aqueous writing ink composition containing metal nanoparticles as the coloring agent, in which said metal nanoparticles said fluid containing—an oxidizing agent and—a volatile solvent. It further concerns a writing instrument containing the eradicator fluid, the use of the eradicator fluid and/or of the kit containing it and a method of correcting errors of a written mark made on porous substrate.

公开(公告)号：US20240294029A1

公开(公告)日：2024-09-05

申请号：US18593289

申请日：2024-03-01

Applicant: MITSUBISHI PENCIL COMPANY, LIMITED

Inventor： Yusuke NAKATA ,  Hisato HAGA

IPC: B43K8/02 ,  C09D11/17

CPC classification number: B43K8/02 ,  C09D11/17

Abstract: A writing instrument may be capable of preventing dye deposition to a pen core and highly achieving both inhibition of ink discoloration due to the dye deposition and improved writing feeling without reducing writing performance. Such a writing instrument may be equipped with a pen core and loaded with a water-based ink composition, wherein the water-based ink composition contains colored resin particles formed by polymerization of a monomer comprising at least cyclohexyl (meth)acrylate, enclosing a basic dye, an oil-soluble dye or an acid dye, and further contains an anionic surfactant.

公开(公告)号：US12071552B2

公开(公告)日：2024-08-27

申请号：US17280002

申请日：2019-09-23

Applicant: Société BIC

Inventor： Carine Bethouart

IPC: C09D11/00 ,  C09D11/17

CPC classification number: C09D11/17

Abstract: 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.

公开(公告)号：US20240182730A1

公开(公告)日：2024-06-06

申请号：US18287622

申请日：2022-04-13

Applicant: KABUSHIKI KAISHA PILOT CORPORATION (also trading as PILOT CORPORATION)

Inventor： Hirotaka MASUDA

IPC: C09D11/18 ,  B43K1/08 ,  B43K7/00 ,  C09D11/17

CPC classification number: C09D11/18 ,  B43K1/08 ,  B43K7/00 ,  C09D11/17

Abstract: An oil-based ballpoint pen includes: a ballpoint pen tip at a tip part of an ink storage cylinder, and an oil-based ballpoint pen ink composition stored in the ink storage cylinder, the oil-based ballpoint pen ink composition containing a colorant, an organic solvent having a boiling point of 140° C. or lower, and a resin, wherein the oil-based ballpoint pen ink composition has an ink viscosity of 300 mPa·s or less at 20° C. and a shear rate of 200 sec−1, an ink consumption of the oil-based ballpoint pen per a writing distance of 100 m is 80 mg or more, and a ratio of a ball diameter B (mm) to an ink consumption A (mg) per a writing distance of 100 m satisfies 100

公开(公告)号：US11970623B2

公开(公告)日：2024-04-30

申请号：US16606131

申请日：2018-04-16

Applicant: SOCIÉTÉ BIC

Inventor： Carine Bethouart ,  Philippe Lefebvre ,  Christelle Debrauwer

IPC: C09D11/17 ,  B43K8/02 ,  C09D11/00

CPC classification number: C09D11/17 ,  B43K8/022

Abstract: A dry erase ink for a writing instrument. The dry erase ink includes, as the main organic solvent, a solvent selected from the group consisting of n-propyl acetate, isopropyl acetate, or mixtures thereof.

公开(公告)号：US11820905B2

公开(公告)日：2023-11-21

申请号：US17631099

申请日：2020-08-28

Applicant: SOCIETE BIC ,  UNIVERSITE DE HAUTE ALSACE ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

Inventor： Olivier Albenge ,  Romain Metillon ,  Karine Mougin ,  Feriel Ghellal ,  Arnaud Spangenberg

IPC: C09D11/17 ,  C07C69/618 ,  B43K1/12 ,  B82Y30/00

CPC classification number: C09D11/17 ,  B43K1/12 ,  B82Y30/00 ,  C07C69/618

Abstract: A process for preparing in situ an aqueous gel ink with fixed color comprising the following steps: (i) preparing a gel-based matrix of aqueous ink comprising ester(s) of retinol represented by formula (I), and (ii) adding a solution of gold salts (Au3+) to the gel-based matrix of aqueous ink prepared in step (i), to obtain an aqueous gel ink with fixed color with gold nanoparticles dispersed therein. An aqueous gel ink with fixed color obtained according to the process of the invention, comprising the ester of retinol represented by formula (I) and gold nanoparticles. A writing instrument comprising an aqueous gel ink with fixed color.

公开(公告)号：US11802214B2

公开(公告)日：2023-10-31

申请号：US17631115

申请日：2020-08-28

Applicant: SOCIETE BIC ,  UNIVERSITE DE HAUTE ALSACE ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

Inventor： Olivier Albenge ,  Romain Metillon ,  Karine Mougin ,  Feriel Ghellal ,  Arnaud Spangenberg

IPC: C09D11/17 ,  C07C69/618 ,  B43K1/12 ,  B82Y30/00

CPC classification number: C09D11/17 ,  B43K1/12 ,  B82Y30/00 ,  C07C69/618

Abstract: A process for preparing in situ an aqueous gel ink with variable color comprising the following steps: (i) preparing a gel-based matrix of aqueous ink comprising an N-Acyl-aminophenol, wherein the hydroxyl group is preferably in meta or para position on the benzenic group, and (ii) adding a solution of silver salts to the gel-based matrix of aqueous ink prepared in step (i), to obtain an aqueous gel ink with variable color with silver nanoparticles disposed therein. An aqueous gel ink with variable color obtained according to process for preparing, comprising an N-Acyl-aminophenol, wherein the hydroxyl group is preferably in meta or para position on the benzenic group and silver nanoparticles. A writing instrument comprising an aqueous gel ink with variable color.

公开(公告)号：US20230312967A1

公开(公告)日：2023-10-05

申请号：US18022852

申请日：2021-08-24

Applicant: KABUSHIKI KAISHA PILOT CORPORATION (also trading as PILOT CORPORATION)

Inventor： Tomoaki NISHIKAWA

IPC: C09D105/00 ,  C09D11/17 ,  B43K8/00

CPC classification number: C09D105/00 ,  C09D11/17 ,  B43K8/003 ,  B43K5/18

Abstract: Disclosed herein are a water-based ink composition for writing instruments excellent not only in handwriting fastness, such as handwriting water resistance, and dispersion stability but also in various properties such as dry-up resistance and handwriting density and a writing instrument using the same. The water-based ink composition for writing instruments contains a self-dispersible pigment, α-glucan or an α-glucan derivative, and water. The writing instrument contains the water-based ink composition for writing instruments. Also disclosed herein is a cartridge ink for writing instruments containing the water-based ink composition for writing instruments.

公开(公告)号：US20230287227A1

公开(公告)日：2023-09-14

申请号：US17997510

申请日：2021-04-28

Applicant: SOCIÉTÉ BIC

Inventor： Damien CONCEDIEU

IPC: C09D11/17 ,  C09D11/50

CPC classification number: C09D11/17 ,  C09D11/50 ,  B43K8/024

Abstract: The present disclosure concerns a water-based color-changing ink composition with two different states of color over time, an initial color A and then a second color B which is not colorless, comprising a volatile pH-modifier base capable of evaporating at room temperature (20° C.), a pH-sensitive dye, and an optional non-pH sensitive dye. The disclosure also concerns a method for preparing such color-changing ink composition. A writing instrument comprising such color-changing ink composition, and a kit comprising such color-changing ink composition and an eradicator, as well as methods for writing on a substrate, are also part of the disclosure. Finally, the disclosure aims at a substrate coated with a color-changing ink composition according to the disclosure.

公开(公告)号：US11738589B2

公开(公告)日：2023-08-29

申请号：US17532043

申请日：2021-11-22

Applicant: THE PILOT INK CO., LTD. ,  KABUSHIKI KAISHA PILOT CORPORATION

Inventor： Yoshihiro Ito

IPC: B43K25/02 ,  C09D11/16 ,  B43K7/02 ,  B43K7/08 ,  B43K7/12 ,  B43K15/00 ,  B43K23/008 ,  B43K24/04 ,  B43K29/02 ,  B43K29/00 ,  B43K7/00 ,  C09D11/17

CPC classification number: B43K25/024 ,  B43K7/005 ,  B43K7/02 ,  B43K7/08 ,  B43K7/12 ,  B43K15/00 ,  B43K23/008 ,  B43K24/04 ,  B43K25/028 ,  B43K29/02 ,  C09D11/16 ,  C09D11/17

Abstract: A thermochromic writing instrument including a writing body, storing a thermochromic ink therein, stored in a barrel; an operation body provided in the barrel to be operated to longitudinally move the writing body; a nib of the writing body configured to be capable of appearing from a front end of the writing instrument, wherein the writing instrument 1 further includes a friction unit, for rubbing handwriting in the thermochromic ink and capable of thermally changing the color of the handwriting by frictional heat generated at that time, and at least one clip body as the operation body, the friction unit 10 is provided at a rear end of the barrel, and the clip body is provided in an area other than the rear end of the barrel.