WO1998026015A1 - Encre pseudoplastique a base d'eau pour stylo a bille - Google Patents
Encre pseudoplastique a base d'eau pour stylo a bille Download PDFInfo
- Publication number
- WO1998026015A1 WO1998026015A1 PCT/JP1997/004479 JP9704479W WO9826015A1 WO 1998026015 A1 WO1998026015 A1 WO 1998026015A1 JP 9704479 W JP9704479 W JP 9704479W WO 9826015 A1 WO9826015 A1 WO 9826015A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ink
- water
- ballpoint pen
- pseudoplastic
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/16—Writing inks
- C09D11/18—Writing inks specially adapted for ball-point writing instruments
Definitions
- the present invention relates to an ink for a water-based ballpoint pen, and more particularly to a pseudoplastic water-based ballpoint pen having the advantages of an oil-based ballpoint pen.
- An oil-based ballpoint pen using an oil-based ballpoint pen has a small diameter ink storage tube, and the ink attached to the ball at the pen tip is transferred to the paper surface by the rotation of the ball, and only the transferred ink passes through the storage tube.
- the structure is supplied.
- the water-based ballpoint pen that uses the water-based ballpoint pen ink has a structure in which ink is supplied to the ball surface or the paper surface by the capillary action of a relay induction core that has been made up of fine fibers.
- the principle of its supply utilizes the capillary action.
- capillary action acts on the contact point, and ink is supplied to the pen tip.
- good handwriting can be created on the paper surface without applying too much pressure, and line breaks, blurring, and dents are less likely to occur.
- the ink is directly When ink is stored, ink leaks due to vibration, impact, temperature rise of the outside air, etc., and the ink supply to the pen tip ball becomes unstable, so the ballpoint pen is a complex one with a relay guide core fixed with fine fibers. A structure is required, and it is difficult to check the remaining amount of the ink in the ink storage tube.
- oil-based ink for ballpoint pens has high viscosity, so that ink can be prevented from dripping from the pen tip, ink can be stored directly in a small-diameter ink storage tube, and the structure of the ballpoint pen can be simplified.
- the use of a suitable material makes it possible to check the remaining amount of the ink.
- since the ink is transferred only to the paper surface in contact with the rotated ball if the rotation of the ball exhibits unstable behavior, cracks and blurring are likely to occur, and the ink does not easily penetrate the paper surface. There is a problem in that the transfer ink tends to cause stains due to transfer ink.
- water-based inks for ballpoint pens (hereinafter referred to as pseudoplastic water-based inks), which have been given a special viscosity characteristic by adding a gelling agent or a water-soluble sizing agent to a water-soluble ink, have recently been developed.
- pseudoplastic water-based inks which have been given a special viscosity characteristic by adding a gelling agent or a water-soluble sizing agent to a water-soluble ink.
- the water-based ballpoint pen using this pseudoplastic water-based ink draws a shearing force on the ink due to the rotation of the ball at the tip of the tip when writing, and the ink viscosity decreases, enabling smooth writing like a water-based ballpoint pen.
- the ink viscosity is high during non-writing, preventing the ink from dripping from the pen tip.
- the ink can be stored directly in the ink storage tube, simplifying the structure of the ballpoint pen, and using a transparent material. By doing so, it is possible to check the remaining amount of the ink.
- the pseudoplastic water-based ballpoint pen When the pseudoplastic water-based ballpoint pen is used as described above, it becomes a writing instrument having the characteristics of an aqueous ballpoint pen and an oil-based ballpoint pen.
- it is extremely difficult to maintain the desired pen quality unless the viscosity of the ink is adjusted according to the chip to be used. For example, if ink with the quality suitable for small diameter ball chips is used for large diameter ball chips, the clearance between the ball and holder will change, Problems such as dents and cracks due to the low shear rate applied to the printhead and a decrease in dryness of the drawing due to excessive ink flow occur.
- An object of the present invention is to solve the above-mentioned problem, and it is possible to cope with a chip under any conditions such as a ball diameter, a material, and a dimension.
- An object of the present invention is to provide a pseudoplastic water-based ballpoint pen having a high writing flow rate, high stability over time, and high dryness of drawing. Disclosure of the invention
- the present inventors have conducted research to solve the above-mentioned problems, and as a result, to eliminate problems of drawing lines, cracking, and low dryness that occur when writing with a ballpoint pen filled with pseudoplastic aqueous ink.
- the present inventors have further found that the object can be achieved by mixing a specific amount of a specific surfactant with an aqueous ink, thereby completing the present invention.
- the pseudoplastic aqueous ballpoint pen ink of the present invention is prepared by adding sodium dimethyl sulfosuccinate to a pseudoplastic aqueous ballpoint pen ink comprising a viscosity agent, a colorant, a dispersant, water and a polar solvent, based on the total amount of the ink. 0.5 to 5% by weight.
- the second pseudoplastic aqueous ballpoint pen ink of the present invention is a pseudoplastic aqueous ballpoint pen ink comprising a thickener, a colorant, a dispersant, water and a polar solvent, and a dialkyl sulfosuccinic acid based on the total amount of the ink. It contains 0.05 to 3% by weight of sodium and 0.01 to 2% by weight of a fluorinated surfactant.
- Pseudoplasticity in the present invention means that in a static state or when external force is small (low shear force), it is extremely hard to flow and shows a large apparent viscosity, and when external force increases (high shear force), fluidity becomes extremely low. This shows a state in which the viscosity increases and the viscosity rapidly decreases.
- the sodium dialkyl sulfosuccinate used in the pseudoplastic aqueous ballpoint pen of the present invention is represented by the following formula. CHzCOOR!
- R 2 represents an alkyl group having 1 to 15 carbon atoms) Specifically, sodium hexyl sulfosuccinate to 2 Echiru, and the like, sodium Jiokuchirusuru Hokohaku acid.
- Sodium dialkyl sulfosuccinate has the effect of imparting lubricity to the ink and enhancing penetration into the writing paper.
- Fluorosurfactants used in the pseudoplastic aqueous ballpoint ink of the present invention include fluoroalkyl (C 2 -C 10 ) carboxylic acid, N-perfluorooctanesulfonyl glutamate disodium, 3- [fluoroalkyl (C 8 to Cn) Okishi] - 1-alkyl (C 3 ⁇ (: 4) sulfonate, sodium Furuoroarukiru (C u ⁇ C 20) carboxylic acid, per full O b alkyl (C 7 ⁇ C 13) carboxylic acids, Monoperfluoroalkyl (C 8 -C 16 ) ethyl phosphate, perfluoroalkyl amine oxide, perfluoroalkyl ethylene oxide adduct and the like.
- a specific product name is, for example, F-top "EF-352" made by Tokchem Products.
- the content of sodium dialkyl sulfosuccinate in the first pseudoplastic aqueous ballpoint pen ink of the present invention is 0.05 to 5% by weight based on the total amount of the ink. If it is less than 0.05%, the penetrating effect will be small, and if it is more than 5%, bleeding will be large and the written lines will be unclear.
- the content of sodium alkylsulfosuccinate is 0.05 to 3% by weight based on the total amount of the ink. If it is less than 0.05%, the penetrating effect is small, and if it is more than 3%, bleeding becomes large and handwriting is drawn. The lines are blurred.
- the content of the fluorinated surfactant is 0.01 to 2% by weight based on the total amount of the ink, and has an effect of significantly reducing the surface tension of the ink and giving the ink lubricity. If the amount is less than 0.01%, there is no effect, and if the amount is more than 2% by weight, the ink at the tip of the pen tip is liable to drop DC and flutter.
- the coloring agent all dyes and pigments that can be dissolved or dispersed in an aqueous solvent can be used, and specific examples thereof include eosin, foxin, water yellow # 6-C, acid red, water red, and water blue.
- # 105 Acid dyes such as Brilliant Blue FCF and Nigguchi Shin NB; Direct dyes such as Direct Black 154, Direct Sky Blue 5B and Bioreet BB; Kuchiichi Damin, Methyl Violet And the like.
- Inorganic pigments such as carbon black and ultramarine blue; and organic pigments such as copper phthalocyanine blue and benzidine yellow. These can be used alone or in combination of two or more. The content of these is preferably from 0.1 to 30% by weight.
- dispersant examples include polyethylene glycol, a salt of a styrene-maleic acid copolymer, a salt of a styrene-maleic acid copolymer, and a salt of a vinylnaphthalene-maleic acid copolymer.
- Water can be used as a main solvent, and any solvent having a polar group compatible with water can be used as a polar solvent.
- any solvent having a polar group compatible with water can be used as a polar solvent.
- ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, ethylene glycol monomethyl ether, glycerin, pyrrolidone and the like can be mentioned.
- the thickener examples include natural resins such as xanthan gum, guar gum, and peram gum; synthetic polymers such as acrylic, urethane, and crosslinked acrylic acid polymers; and inorganics such as smectite and montmorillonite.
- synthetic polymers such as cross-linked acrylic acid polymers include "Junlon PW-110", “Junron PW-111”, “Hibis @ 103", “Hibis @ 104" manufactured by Wako Pure Chemical Industries, Ltd. , “Hibis @ ko 105", “Hibis @ ko 304", BF Goodrich Company "Carbopol 941", etc., Rohm & Haas Japan Co., Ltd. "Primal AS E-60”, “Primal AS E-” 75 “,” Primal TT-615 “,” Primal TT-935 “,” Primal GS “.
- benzotriazoles and savonins are used as regulators as antioxidants
- potassium hydroxide, potassium phosphate, and triethanolamine are used as pH regulators
- sodium omadazine is used as a preservative.
- Benzoisothiazoline and the like can be used as needed.
- the method for producing a pseudoplastic aqueous ballpoint pen according to the present invention can be easily obtained by heating, dissolving, mixing and stirring the above components as necessary.
- the ink for pseudoplastic aqueous ballpoint pens of the present invention is obtained by adding a sodium dialkylsulfosuccinate, or a fluorine-based surfactant and sodium dialkylsulfosuccinate, which are different from the conventional ones, to a ballpoint pen. Irrespective of the diameter, material, dimensions, etc., the cracking phenomenon does not occur, and a stable and stable writing flow rate can be obtained at all times, and the stability with time and the drying property of drawing lines are high.
- the surface tension of the ink containing a fluorine-based surfactant is significantly reduced, and the sodium dialkyl sulfosuccinate has the ability to reduce the interfacial tension and the surface tension of solid-liquid in the ink.
- Ink with such properties improves wettability to the chip when used as a ballpoint pen. Therefore, no matter what size ball is used (that is, even if the shear force applied to the ink changes), the ink can be used. You can write stably without breaking. It is also assumed that the ink has low interfacial tension on the paper surface, has a sufficient penetrating effect, has high dryness of drawing lines, and can prevent the occurrence of cracks and cracks.
- Shear rate 3 with an E type rotational viscometer Measured at 8 4 s 1 and 3 8 4 s 1
- the followability of the ink composition when writing at twice the normal speed was evaluated based on the following criteria.
- Helix was written on the writing paper in a constant temperature room at a temperature of 25 ° C. and a humidity of 65%, rubbed with a commercially available cotton swab after 10 seconds, observed with ink for smear, and evaluated according to the following criteria.
- a pigment ink for a blue pseudoplastic aqueous ballpoint pen was prepared with the following composition (
- Lid mouth shimble 8.0% by weight Ammonium salt of styrene-acrylic acid resin 3.0 ⁇ ⁇ ⁇ ⁇ ⁇ Sodium dioctyl sulfosuccinate
- Pigment ink for black pseudoplastic aqueous ballpoint pen was prepared with the following formulation Carbon black 8 Styrene monoacrylate resin ammonium salt 3.0 Dioctyl sulfosuccinate sodium
- a pigmented ink for a blue pseudoplastic aqueous ballpoint pen was prepared with the following composition.
- Example 11 except for sodium octyl sulfosuccinate, 0.8% by weight of a phosphoric ester ("Phosphanol RS-610" manufactured by Toho Chemical Co., Ltd.) was added to give a blue pseudoplastic aqueous ballpoint pen pigment. Obtained.
- a phosphoric ester (“Phosphanol RS-610" manufactured by Toho Chemical Co., Ltd.)
- Example 12 except for sodium octyl sulfosuccinate, 0.8% by weight of a phosphoric ester ("Phosphanol RS-610" manufactured by Toho Chemical Co.) was added to obtain a black pseudoplastic aqueous ballpoint pen. Obtained.
- a phosphoric ester (“Phosphanol RS-610" manufactured by Toho Chemical Co.)
- Example-3 except for the fluorine-based surfactant and sodium dioctylsulfosuccinate, 0.6% by weight of potash was added to obtain a blue pseudoplastic water-based pigment for ballpoint pen.
- Example 14 except for the fluorine-based surfactant and sodium octylsulfosuccinate, 0.6% by weight of potassium stone was added to obtain a black pseudoplastic water-based paint for a ballpoint pen.
- the inks obtained by the formulations of Examples 1 to 4 and the inks obtained by the formulations of Comparative Examples 1 to 4 were respectively filled with a ball-point pen having a ball diameter of 0.5 mm and a ball-point pen having a ball diameter of 1.0 mm. And the quality of the ink of the pen was evaluated.
- the ink for a pseudoplastic water-based ballpoint pen of the present invention when used in a ballpoint pen, does not suffer from cracking in the face regardless of the ball diameter, material, dimensions, etc., and can always obtain a smooth and stable writing flow rate. In addition, it has high stability over time and dryness of drawing lines. It can be suitably used for a water-based ballpoint pen regardless of the ball diameter of the chip.
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP97946133A EP0957143B1 (en) | 1996-12-12 | 1997-12-08 | Pseudoplastic water-base ballpoint ink |
| US09/319,786 US6146452A (en) | 1996-12-12 | 1997-12-08 | Pseudoplastic water based ink for ballpoint pen |
| JP52647798A JP4180117B2 (ja) | 1996-12-12 | 1997-12-08 | 擬塑性水性ボールペン用インキ |
| DE69721058T DE69721058T2 (de) | 1996-12-12 | 1997-12-08 | Pseudoplastische kugelschreibertinte auf wasserbasis |
| AU51379/98A AU5137998A (en) | 1996-12-12 | 1997-12-08 | Pseudoplastic water-base ballpoint ink |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8/332489 | 1996-12-12 | ||
| JP33248996 | 1996-12-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1998026015A1 true WO1998026015A1 (fr) | 1998-06-18 |
Family
ID=18255523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1997/004479 Ceased WO1998026015A1 (fr) | 1996-12-12 | 1997-12-08 | Encre pseudoplastique a base d'eau pour stylo a bille |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US6146452A (ja) |
| EP (1) | EP0957143B1 (ja) |
| JP (1) | JP4180117B2 (ja) |
| KR (1) | KR100338181B1 (ja) |
| CN (1) | CN1107692C (ja) |
| AU (1) | AU5137998A (ja) |
| DE (1) | DE69721058T2 (ja) |
| TW (1) | TW349982B (ja) |
| WO (1) | WO1998026015A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006316270A (ja) * | 2005-05-10 | 2006-11-24 | Js Staedtler Gmbh & Co Kg | 延長された“キャップ開放時間”を有するインク |
| JP2014167130A (ja) * | 2007-08-06 | 2014-09-11 | E.I.Du Pont De Nemours And Company | 混合フルオロアルキル−アルキル界面活性剤 |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2398201A (en) * | 1999-12-24 | 2001-07-09 | Mitsubishi Pencil Kabushiki Kaisha | Ink for ball-point pen and ball-point pen |
| KR20020060267A (ko) * | 1999-12-24 | 2002-07-15 | 추후제출 | 볼펜용 잉크 및 볼펜 |
| EP1321310A1 (de) * | 2001-12-21 | 2003-06-25 | Schächter, Friedrich | Prüfverfahren für Schreibgeräte |
| US7241335B2 (en) * | 2002-04-25 | 2007-07-10 | Sakura Color Products Corporation | Aqueous ink for ball point pens |
| WO2013015813A1 (en) * | 2011-07-28 | 2013-01-31 | Hewlett-Packard Development Company, L.P. | Perfluoropolyethers as ink additives |
| JP6223764B2 (ja) * | 2012-10-12 | 2017-11-01 | 三菱鉛筆株式会社 | 水性ボールペン用インク組成物 |
| CN109694618B (zh) * | 2019-02-01 | 2022-01-18 | 常熟美克尼化工有限公司 | 中性笔用中性墨水组合物及其制备方法以及中性笔 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5695961A (en) * | 1979-12-28 | 1981-08-03 | Seiko Epson Corp | Ink jet recording ink |
| JPH0633006A (ja) * | 1992-07-14 | 1994-02-08 | Ricoh Co Ltd | インクジェット記録用インク組成物およびインクジェット記録方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05171095A (ja) * | 1991-10-24 | 1993-07-09 | Zebura Kk | 水性ボールペン用蛍光色ゲルインキ |
| JPH05117571A (ja) * | 1991-10-30 | 1993-05-14 | Zebura Kk | 水性ボールペン用蛍光色ゲルインキ |
| US5512623A (en) * | 1992-07-21 | 1996-04-30 | The Gillette Company | Permanent aqueous marker inks |
| JPH06220390A (ja) * | 1993-01-26 | 1994-08-09 | Shiyachihata Kogyo Kk | 水性ボールペン用インキ |
| JPH06220389A (ja) * | 1993-01-26 | 1994-08-09 | Shiyachihata Kogyo Kk | 水性ボールペン用インキ |
| JP3238792B2 (ja) * | 1993-04-30 | 2001-12-17 | 株式会社リコー | 水性インク及びこれを用いた記録方法 |
| JP3398497B2 (ja) * | 1994-12-28 | 2003-04-21 | 株式会社サクラクレパス | 水性インキ |
| JP3773322B2 (ja) * | 1997-02-18 | 2006-05-10 | 三菱鉛筆株式会社 | 擬塑性水性ボールペン用インキ |
-
1997
- 1997-12-08 EP EP97946133A patent/EP0957143B1/en not_active Expired - Lifetime
- 1997-12-08 WO PCT/JP1997/004479 patent/WO1998026015A1/ja not_active Ceased
- 1997-12-08 AU AU51379/98A patent/AU5137998A/en not_active Abandoned
- 1997-12-08 KR KR1019997005127A patent/KR100338181B1/ko not_active Expired - Fee Related
- 1997-12-08 US US09/319,786 patent/US6146452A/en not_active Expired - Lifetime
- 1997-12-08 CN CN97180593A patent/CN1107692C/zh not_active Expired - Fee Related
- 1997-12-08 DE DE69721058T patent/DE69721058T2/de not_active Expired - Fee Related
- 1997-12-08 JP JP52647798A patent/JP4180117B2/ja not_active Expired - Fee Related
- 1997-12-09 TW TW086118503A patent/TW349982B/zh not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5695961A (en) * | 1979-12-28 | 1981-08-03 | Seiko Epson Corp | Ink jet recording ink |
| JPH0633006A (ja) * | 1992-07-14 | 1994-02-08 | Ricoh Co Ltd | インクジェット記録用インク組成物およびインクジェット記録方法 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP0957143A4 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006316270A (ja) * | 2005-05-10 | 2006-11-24 | Js Staedtler Gmbh & Co Kg | 延長された“キャップ開放時間”を有するインク |
| JP2014167130A (ja) * | 2007-08-06 | 2014-09-11 | E.I.Du Pont De Nemours And Company | 混合フルオロアルキル−アルキル界面活性剤 |
Also Published As
| Publication number | Publication date |
|---|---|
| TW349982B (en) | 1999-01-11 |
| CN1240467A (zh) | 2000-01-05 |
| US6146452A (en) | 2000-11-14 |
| DE69721058T2 (de) | 2003-12-24 |
| EP0957143A1 (en) | 1999-11-17 |
| EP0957143B1 (en) | 2003-04-16 |
| KR100338181B1 (ko) | 2002-05-24 |
| DE69721058D1 (de) | 2003-05-22 |
| JP4180117B2 (ja) | 2008-11-12 |
| AU5137998A (en) | 1998-07-03 |
| CN1107692C (zh) | 2003-05-07 |
| KR20000057474A (ko) | 2000-09-15 |
| EP0957143A4 (en) | 2000-01-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7366217B2 (ja) | 油性ボールペン | |
| WO1998026016A1 (fr) | Composition d'encre a base d'eau pour stylo a bille | |
| JP4766881B2 (ja) | 筆記具用水性インキ組成物 | |
| JP6858556B2 (ja) | 水性ボールペン用インキ組成物、およびそれを用いた水性ボールペン | |
| JP4180117B2 (ja) | 擬塑性水性ボールペン用インキ | |
| JP4961115B2 (ja) | 可逆熱変色性筆記具用水性インキ組成物及びそれを収容した筆記具 | |
| JP6904702B2 (ja) | 水性ボールペン | |
| WO2000012638A1 (fr) | Encre pseudoplastique à base aqueuse pour stylo bille | |
| JP4327567B2 (ja) | 繊維集合体用消去性水性インキ組成物 | |
| JP4919660B2 (ja) | 筆記具用水性インキ組成物 | |
| JPWO1998026015A1 (ja) | 擬塑性水性ボールペン用インキ | |
| JP7422016B2 (ja) | 筆記具用水性インキ組成物、およびそれを用いた筆記具 | |
| JP7412896B2 (ja) | 水性ボールペン用インキ組成物およびそれを用いた水性ボールペン | |
| WO1999006494A1 (fr) | Encre aqueuse pseudoplastique pour stylos a bille | |
| JP2001139867A (ja) | 水性ボールペンに近似した筆跡を形成するゲル状の油性ボールペン用インキ及びそのインキを用いたボールペン | |
| JP4129436B2 (ja) | 水性消去性マーキングペンインキ組成物 | |
| JP5002116B2 (ja) | ボールペン用擬似塑性水性インク | |
| JP3032516B1 (ja) | 水性ボ―ルペン用インキ組成物 | |
| JP2010059350A (ja) | 水性描画材 | |
| JP2020100730A (ja) | 筆記具用水性インキ組成物 | |
| JP2021017479A (ja) | 筆記具用インキ組成物およびそれを用いた筆記具 | |
| JP7370241B2 (ja) | 水性ボールペン用インキ組成物およびそれを用いた水性ボールペン | |
| JP6265777B2 (ja) | 筆記具用水性インク組成物 | |
| JP2023183702A (ja) | 筆記具用インキ組成物およびそれを用いた筆記具 | |
| JP2003192975A (ja) | 油性ボールペン用インキ組成物 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 97180593.8 Country of ref document: CN |
|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE HU ID IL IS JP KE KG KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TR TT UA UG US UZ VN AM AZ BY KG KZ MD RU TJ TM |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH KE LS MW SD SZ UG ZW AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ |
|
| DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| WWE | Wipo information: entry into national phase |
Ref document number: 09319786 Country of ref document: US |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 1019997005127 Country of ref document: KR |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 1997946133 Country of ref document: EP |
|
| REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
| WWP | Wipo information: published in national office |
Ref document number: 1997946133 Country of ref document: EP |
|
| WWP | Wipo information: published in national office |
Ref document number: 1019997005127 Country of ref document: KR |
|
| WWG | Wipo information: grant in national office |
Ref document number: 1019997005127 Country of ref document: KR |
|
| WWG | Wipo information: grant in national office |
Ref document number: 1997946133 Country of ref document: EP |
