WO2000006644A1 - Composition resinique acceptant un marquage au laser, procede de marquage, et article moule portant cette marque - Google Patents
Composition resinique acceptant un marquage au laser, procede de marquage, et article moule portant cette marque Download PDFInfo
- Publication number
- WO2000006644A1 WO2000006644A1 PCT/JP1999/003976 JP9903976W WO0006644A1 WO 2000006644 A1 WO2000006644 A1 WO 2000006644A1 JP 9903976 W JP9903976 W JP 9903976W WO 0006644 A1 WO0006644 A1 WO 0006644A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- resin composition
- laser
- marking
- molded article
- composition according
- Prior art date
Links
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/267—Marking of plastic artifacts, e.g. with laser
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
Definitions
- the present invention provides a resin composition capable of performing marking of characters, symbols, pictures, photographs, and the like on the surface of a molded article with a laser, a method for marking a molded article obtained from the resin composition, and marking.
- a resin composition capable of performing marking of characters, symbols, pictures, photographs, and the like on the surface of a molded article with a laser
- a method for marking a molded article obtained from the resin composition and marking.
- a silicone-based substance is blended with the resin.
- a metal such as aluminum or copper
- silicon-based substances often have poor dispersion due to poor compatibility with polyolefin, and as a result, clear printing with a laser cannot be expected.
- the processability and mechanical properties of the obtained composition are remarkably reduced, and the use thereof is limited.
- U.S. Pat. No. 3,348,25 discloses that by blending carbon black and an ultraviolet stabilizer with an olefin polymer, it becomes possible to print on an electric wire case. I have. However, simply blending carbon black with polyolefins results in uneven dispersion of carbon black, which not only results in poor appearance, but also makes it impossible to obtain a uniform and good print state. Disclosure of the invention
- an object of the present invention is to provide a resin composition and a marking method capable of forming a marking having a clear and uniform contrast on the surface of a molded article by a laser, and a mark having a clear and uniform contrast on the surface.
- An object of the present invention is to provide a molded article formed.
- Another object of the present invention is to provide a resin composition and a marking method capable of laser marking without impairing workability and mechanical properties, and a molded article which is marked without impairing workability and mechanical properties.
- the present inventors have conducted intensive studies to achieve the above object, and as a result, when a molded article obtained from a resin composition obtained by blending a specific component with a polyolefin resin is irradiated with laser light, The present inventors have found that a print having a clear and uniform contrast can be formed on the surface of the molded article, and have completed the present invention.
- the present invention provides a laser-markable resin composition obtained by blending a laser-sensitive component with a dispersion aid in a polyolefin resin.
- the present invention also provides a method for marking a molded article, wherein the surface of the molded article obtained from the resin composition is marked by irradiating the surface with a laser beam.
- the present invention further provides a molded article composed of the above resin composition and having a surface marked with a laser.
- the polyolefin-based resin in the present invention is any of homoolefin and copolymer (random copolymer, block copolymer) of olefin.
- olefin homopolymers such as polypropylene and polyethylene; copolymers containing propylene as a monomer component such as an ethylene-propylene copolymer; and ethylene such as an ethylene-butyl acetate copolymer as a monomer component.
- polypropylene (PP) force S is most preferably used in terms of physical properties, heat resistance, and price balance.
- the value of the melt-to-mouth ratio (MFR) of the polypropylene is preferably about 0.5 to 50 (g / 10 minutes), and the flexural modulus is preferably 100 to 1000. It is about 0.00 kgfcm 2 . If the MFR is too small, ordinary molding tends to be difficult, and if it is too large, it is difficult to obtain sufficient mechanical strength. On the other hand, if the flexural modulus is too small, the resin is too soft and tends to creep during use. Conversely, if it is too large, the resin is too hard and cracks easily occur during use.
- other resins may be blended in addition to the polyolefin resin.
- a resin having high crystallinity and high elasticity such as polypropylene-polyethylene
- various elastomers such as olefin, styrene, polyester, polyamide, etc. (natural (Including rubber, synthetic rubber, and thermoplastic elastomer) to adjust the elastic modulus.
- the amount of the elastomer is about 0.5 to 30 parts by weight, preferably about 5 to 25 parts by weight, based on 100 parts by weight of the polyolefin resin. It is.
- laser-sensitive components include, for example, components that are physically or chemically changed by laser irradiation.
- a known or commonly used laser-sensitive component used for marking using a laser beam can be used.
- Such components include, for example, black pigments such as carbon black, and inorganic pigments such as metal compound-based white pigments. These components can be used alone or in combination of two or more. By appropriately selecting the type of the laser-sensitive component, a marking of a desired color can be formed.
- a black pigment such as a carbon black
- white printing is obtained
- a white pigment such as a metal compound-based white pigment
- black printing is obtained.
- a white pigment such as a metal compound and a black pigment such as carbon black
- an extremely clear black marking can be formed.
- furnace black, channel black, acetylene black, and Ketjen black can be used.
- the particle size and oil absorption of carbon black tend to affect the marking characteristics.
- the preferred average particle size of the carbon black is about 10 to 100 nm, and the preferred oil absorption is about 50 to 500 ml Zg.
- the metal compound-based white pigment examples include metal oxides such as titanium oxide, lead oxide, and zinc oxide; metal salts such as talc (magnesium silicate), calcium carbonate, and potassium titanate (metal carbonates and silicates). Acid salts, oxo acid salts such as titanates) and the like.
- metal oxides such as titanium oxide, lead oxide, and zinc oxide
- metal salts such as talc (magnesium silicate), calcium carbonate, and potassium titanate (metal carbonates and silicates). Acid salts, oxo acid salts such as titanates) and the like.
- titanium oxide is particularly preferably used.
- These metal compound-based white pigments may be used alone or in combination of two or more.
- the amount of the laser-sensitive component used can be appropriately selected within the range of about 0.005 to 50% by weight based on the entire resin composition, depending on the type of the component.
- the amount of the carbon black used is about 0.01 to 5% by weight, preferably about 0.03 to 4% by weight, based on the whole resin composition. Preferably it is about 0.05 to 3% by weight.
- a metal compound-based white pigment is used, its amount is about 0.2 to 50% by weight, preferably 0.5 to 40% by weight, based on the whole resin composition. / 0 or so. If the amount of the laser-sensitive component used is too small, it will be difficult to obtain clear contrast printing (white printing or black printing). The resolution tends to be low.
- the dispersing aid in the present invention is not particularly limited as long as it improves the dispersibility of the laser-sensitive component, but a fatty acid-based compound is preferably used.
- the fatty acid-based compound includes a saturated or unsaturated fatty acid having 2 or more carbon atoms (for example, about 2 to 32) or a derivative thereof (salt, ester, amide, and the like).
- Preferred fatty acid compounds include, for example, higher fatty acids such as lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, and linolenic acid (for example, fatty acids having about 10 to 20 carbon atoms).
- Salts of the above-mentioned higher fatty acids such as zinc laurate, calcium stearate, zinc stearate, and sodium oleate (eg, alkali metal salts, alkaline earth metal salts, and zinc salts); ethylene bisstearylamide, lauric acid And higher fatty acid-based compounds (higher fatty acids or derivatives thereof).
- the amount of the dispersing agent to be used is, for example, about 0.05 to 6% by weight, preferably 0.01 to 5% by weight, based on the whole resin composition. / 0 or so. If the amount of the dispersing aid is too small, the dispersibility of the laser-sensitive component is low, and It is difficult to obtain clear prints. If the amount of the dispersing agent is too large, problems such as evaporation and sublimation of the dispersing agent during molding and adhesion to the mold may occur.
- the method for preparing the resin composition capable of laser marking according to the present invention includes: (1) a polyolefin resin, a laser-sensitive component, a dispersing aid, and if necessary, other resins (for example, elastomers), There is a method in which additives and the like are blended in a predetermined amount, and kneading and pelletizing are performed by the ordinary melt-kneading method. (2) Compounds sensitive to lasers, dispersing aids, etc. are formed into a masterbatch and molded. In some cases, it is also possible to mix a predetermined amount with a polyolefin-based resin and to mold it as it is.
- the surface of the molded article obtained from the resin composition of the present invention is masked by irradiating a laser beam to the surface.
- the molded article can be obtained by a conventional molding method used for plastic molding such as, for example, extrusion molding (film, sheet, irregular shape), injection molding, blow molding, compression molding and the like.
- the type of laser beam used for marking is not particularly limited, and may be any of a gas laser, a semiconductor laser, an excimer laser, and the like, but an Nd: YAGG laser is most preferably used.
- the method of marking is not particularly limited and can be performed by a known or conventional method.However, in order to increase the marking accuracy, a laser beam is focused on a spot of an appropriate size by a conventionally known optical method. It is preferable to irradiate the laser spot so that a mark of a desired shape is formed on the surface of the molded product by using a scanning device in which a plurality of optical mirrors controlled by a computer are combined.
- the type of marking is not particularly limited, and may be any of characters, symbols, figures, pictures, photographs, and the like.
- a specific component is blended with the polyolefin resin, so that a marking having a clear and uniform contrast can be formed on the surface of a molded article by a laser. It is possible.
- the mark formed on the surface has a clear and uniform contrast.
- the processability and mechanical properties of the resin composition and the molded product are not impaired.
- the present invention will be described more specifically based on examples, but the present invention is not limited thereto.
- the following polymers, carbon black, metal compounds and dispersing aids were used.
- PE / Elastomer [Mitsui Chemicals Co., Ltd., trade name: Hyzex 1300 J] 80 parts by weight and Elastomer [Sumitomo Chemical Co., Ltd., trade name: Bondyne HX 82 90] 20 weight Melt blended with a conventional extruder
- CB-1 furnace black (average particle size 20 nm)
- CB-2 acetylene black (average particle size 40 nm)
- CB-3 Ketjen black (average particle size 25 nm)
- DA-4 Calcium stearate.
- the polymer, carbon black (as a laser-sensitive component), and a dispersing agent are blended in the proportions shown in Table 1 to prepare a resin composition capable of white marking, and a 2 mm-thick plate-like molded product is prepared by injection molding. Obtained. When laser marking was performed on the surface of this molded product, clear printing was possible in each case.
- the polymer, metal compound (as a laser-sensitive component), and a dispersing agent are blended in the proportions shown in Table 2 to prepare a resin composition that can be marked with a black mark. I got Laser marking was performed on the surface of this molded product, and clear printing was possible in each case.
- a polymer, a metal compound, carbon black (as a laser-sensitive component), and a dispersing agent are blended in the proportions shown in Table 3 to prepare a resin composition capable of black marking, and a thickness of 2 mm is obtained by an injection molding method. Was obtained. When laser marking was performed on the surface of this molded product, clear printing was possible in each case.
- a polymer composition capable of white marking was prepared by blending the polymer, carbon black, and the dispersing aid in the proportions shown in Table 4, and a plate-shaped molded product having a thickness of 2 mm was obtained by an injection molding method. When laser marking was performed on the surface of this molded product, clear printing could not be performed in any case.
- a polymer, a metal compound and a dispersing agent were blended in the proportions shown in Table 5 to prepare a black-markable resin composition, and a 2 mm-thick plate-like molded product was obtained by an injection molding method.
- a black-markable resin composition a polymer, a metal compound and a dispersing agent was blended in the proportions shown in Table 5 to prepare a black-markable resin composition, and a 2 mm-thick plate-like molded product was obtained by an injection molding method.
- clear printing could not be performed in any case.
- Example 1 PP CB-1 0.05 DA-1 0.01 White clear
- Example 2 PP 99.6 CB-1 0.2 DA-1 0.2 White mark Light
- Example 3 PP 98.5 CB -1 1 DA-1 0.5 White mark sharp
- Example 4 PP 96 CB-1 3 DA-1 1 White mark clear.
- Example 5 PP 98.5 CB-1 1 DA-2 0.5 White mark clear
- Example 6 PP 98 CB-1 1 DA-2 1 White mark clear
- Example 7 PP 98.2 CB-2 1 DA-3 0.8 White mark clear
- Example 8 PP 98.2 CB-3 1 DA-3 0.8 White mark clear
- Type Amount Polymer Metal compound Carbon * Fan * Lack Dispersing aid Laser '-Mark printability Type
- Type Amount Type Amount
- Example 15 PP 88.5 M-1 10 CB-1 1 DA-1 0.5 Black mark clear
- Example 16 PP / Eras 1mer 88.5 M-1 10 CB-1 1 DA-1 0.5 Black mark clear
- Example 17 PE / Elastomer 88.5 M-1 10 CB-1 1 DA-4 0.5 Black mark Clear
- Comparative Example 1 PP 99.995 CB- ⁇ 0.005 DA-1 0 White mark Unreadable due to lack of contrast
- Comparative Example 2 PP 90 CB-1 10 DA-1 0 White Mark CB dispersion failure and unclear Comparative Example 3 PP 99 CB-1 0 DA-1 1 White mark Unprintable Comparative example 4 PP / Eras ( ⁇ mer 99 CB-20 DA-3 1 White mark Unprintable Comparative example 5 PE / Elastomer 99 CB-2 1 DA-3 0 White mark CB dispersion Poor and unclear Comparative Example 6 PP 99 CB-3 1 DA-30 White mark Unclear and unclear CB dispersion
- Comparative Example 7 'PP 95 M-1 5 DA-10 Black Mark Unclear due to poor dispersion of titanium oxide Comparative Example 8 PP 99 M-1 0 DA-1 1 Black Mark Unclear print and unreadable Comparative Example 9 PP 90 M-1 10 DA-20 Black mark Unclear due to poor dispersion of titanium oxide Comparative Example 10 PP 99 M-10 DA-4 1 Black mark Unclear print and unreadable
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Laser Beam Processing (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/744,596 US6586518B1 (en) | 1998-07-27 | 1999-07-26 | Resin composition capable of laser marking method, and marked molded article |
EP99931526A EP1162232B1 (en) | 1998-07-27 | 1999-07-26 | Resin composition capable of laser marking, marking method, and marked molded article |
DE69933140T DE69933140T2 (de) | 1998-07-27 | 1999-07-26 | Laserbeschriftete harzzusammensetzung, beschriftungsverfahren und beschrifteter gegossener gegenstand |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10/226511 | 1998-07-27 | ||
JP22651198A JP4176877B2 (ja) | 1998-07-27 | 1998-07-27 | レーザーマーク可能な樹脂組成物、マーキング方法及びマーキングが施された成形品 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000006644A1 true WO2000006644A1 (fr) | 2000-02-10 |
Family
ID=16846279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1999/003976 WO2000006644A1 (fr) | 1998-07-27 | 1999-07-26 | Composition resinique acceptant un marquage au laser, procede de marquage, et article moule portant cette marque |
Country Status (7)
Country | Link |
---|---|
US (1) | US6586518B1 (ja) |
EP (1) | EP1162232B1 (ja) |
JP (1) | JP4176877B2 (ja) |
KR (1) | KR100582616B1 (ja) |
DE (1) | DE69933140T2 (ja) |
TW (1) | TWI230720B (ja) |
WO (1) | WO2000006644A1 (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3892983B2 (ja) * | 1999-01-25 | 2007-03-14 | ダイセル化学工業株式会社 | 白色マーキング用樹脂組成物 |
JP3963077B2 (ja) * | 2000-12-25 | 2007-08-22 | 松下電工株式会社 | 成形体の加飾方法 |
JP3786357B2 (ja) * | 2002-04-30 | 2006-06-14 | 独立行政法人科学技術振興機構 | マーキング用樹脂組成物及びマーキング方法 |
DE602005022901D1 (de) | 2004-09-03 | 2010-09-23 | Toyo Ink Mfg Co | Aufzeichnungsmaterial und aufzeichnungsverfahren |
JP2006241254A (ja) * | 2005-03-01 | 2006-09-14 | Daicel Polymer Ltd | レーザーマーキング可能な熱可塑性樹脂組成物 |
KR100697977B1 (ko) * | 2005-12-30 | 2007-03-23 | 삼성토탈 주식회사 | 레이저 마킹이 가능한 열가소성 수지 조성물 |
DE102008025582A1 (de) * | 2008-01-11 | 2009-07-16 | Tesa Ag | Verfahren zur Herstellung von Titancarbid |
JP5235089B2 (ja) * | 2008-03-27 | 2013-07-10 | 本田技研工業株式会社 | 燃料ポンプ取付構造 |
KR101130481B1 (ko) * | 2009-08-04 | 2012-03-27 | 삼성토탈 주식회사 | 백색 레이저 마킹용 수지 조성물 |
JP5386436B2 (ja) * | 2009-10-26 | 2014-01-15 | 日本ポリプロ株式会社 | レーザー光溶着用プロピレン系樹脂組成物およびその用途 |
WO2011103200A2 (en) * | 2010-02-22 | 2011-08-25 | Polyone Corporation | Uv laser markable thermoplastic elastomer compound |
JP6874504B2 (ja) * | 2016-04-26 | 2021-05-19 | 大日本印刷株式会社 | レーザ印字用多層積層フィルム並びにそれよりなる包装体及び印字体 |
EP3584088B1 (en) * | 2018-06-19 | 2020-09-30 | Borealis AG | Polyolefin composition providing marking by fluorescence |
EP3584089A1 (en) * | 2018-06-19 | 2019-12-25 | Borealis AG | Polyolefin composition providing improved contrast of laser marks |
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US5300350A (en) * | 1993-02-22 | 1994-04-05 | The Dow Chemical Company | Black-colored, laser-writable blends of carbonate polymer and polyester |
US5489639A (en) * | 1994-08-18 | 1996-02-06 | General Electric Company | Copper salts for laser marking of thermoplastic compositions |
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1998
- 1998-07-27 JP JP22651198A patent/JP4176877B2/ja not_active Expired - Fee Related
-
1999
- 1999-07-26 KR KR1020017001092A patent/KR100582616B1/ko not_active IP Right Cessation
- 1999-07-26 US US09/744,596 patent/US6586518B1/en not_active Expired - Fee Related
- 1999-07-26 WO PCT/JP1999/003976 patent/WO2000006644A1/ja active IP Right Grant
- 1999-07-26 DE DE69933140T patent/DE69933140T2/de not_active Expired - Fee Related
- 1999-07-26 EP EP99931526A patent/EP1162232B1/en not_active Expired - Lifetime
- 1999-07-27 TW TW088112660A patent/TWI230720B/zh not_active IP Right Cessation
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JPH05331373A (ja) * | 1992-05-29 | 1993-12-14 | Nippon G Ii Plast Kk | レーザーマーキング用樹脂組成物 |
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Also Published As
Publication number | Publication date |
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JP2000044736A (ja) | 2000-02-15 |
DE69933140T2 (de) | 2006-12-21 |
DE69933140D1 (de) | 2006-10-19 |
EP1162232B1 (en) | 2006-09-06 |
KR100582616B1 (ko) | 2006-05-23 |
KR20010071032A (ko) | 2001-07-28 |
US6586518B1 (en) | 2003-07-01 |
TWI230720B (en) | 2005-04-11 |
EP1162232A1 (en) | 2001-12-12 |
JP4176877B2 (ja) | 2008-11-05 |
EP1162232A4 (en) | 2003-05-02 |
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