EP0566312A1 - Resin compositions for laser marking - Google Patents

Resin compositions for laser marking Download PDF

Info

Publication number
EP0566312A1
EP0566312A1 EP93302756A EP93302756A EP0566312A1 EP 0566312 A1 EP0566312 A1 EP 0566312A1 EP 93302756 A EP93302756 A EP 93302756A EP 93302756 A EP93302756 A EP 93302756A EP 0566312 A1 EP0566312 A1 EP 0566312A1
Authority
EP
European Patent Office
Prior art keywords
compounds
marking
resin
tetrazole
resin compositions
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.)
Withdrawn
Application number
EP93302756A
Other languages
German (de)
English (en)
French (fr)
Inventor
Kenichi Sakai
Takuro Kitamura
Toshio Ishihara
Hideki Kato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SABIC Innovative Plastics Japan KK
Original Assignee
GE Plastics Japan Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GE Plastics Japan Ltd filed Critical GE Plastics Japan Ltd
Publication of EP0566312A1 publication Critical patent/EP0566312A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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

Definitions

  • the present invention is a resin composition for laser marking, comprising:
  • thermoplastic resins used in the present invention there is no particular restriction on the thermoplastic resins used in the present invention, it being possible to use various known thermoplastic resins. These may be, but are not limited to, polyesters such as polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polycyclohexene terephthalate (PCT), polyphenylene oxide (PPO), polycarbonate (PC), polyether imide (PEI), polystyrenes (PS) such as high-impact polystyrene (HIPS), polyethylene (PE), polypropylene (PP), polyamide (PA), polyvinyl chloride (PVC), polyacetal (POM), fluororesins such as polytetrafluoroethylene, acrylic resins, polysulfones, polyphenylenesulfides (PPS) and methylpentene resins. Alloys of various thermoplastic resins such as alloys of PPO and PS resins can be obtained. The use of polyester, PPO,
  • tetrazole compounds can be used as the tetrazole compounds or as the azo compounds, nitroso compounds or sulfonylhydrazide compounds having a decomposition temperature of 210° C or more (hereinafter, these compounds shall sometimes be referred to as "laser marking additives").
  • these compounds are the alkaline earth metal salts of tetrazoles, and especially the calcium salt; the alkaline earth metal salts of 5-amino-1 H-tetrazole, and especially the calcium salt; the alkaline earth metal salt of 5-methyl-1 H-tetrazole, and especially the calcium and barium salts; and the alkaline earth metal salt of 5,5'-bis-1 H-tetrazole, and especially the calcium salt.
  • These compounds are preferably used in an amount of about 0.001-10 parts by weight, and even more preferably an amount of about 0.01-5 parts by weight, per 100 parts by weight of the thermoplastic resin.
  • reinforcing agents such as glass fibers, carbon fibers and aramid fibers may be contained in the resin compositions for laser marking according to the present invention.
  • the amounts in which these are used may be set as desired in accordance with the type of thermoplastic resin and the desired resin composition, but it is generally desirable for this to be set at about 0-100 parts by weight, and especially about 0-50 parts by weight, per 100 parts by weight of thermoplastic resin.
  • a temperature appropriate for the thermoplastic resin being used for example the temperature may be set at about 260° C in the case of PBT resins, about 280° C in the case of PCT resins, about 280° C in the case of mixtures of PPO resins and PS resins, about 270° C in the case of PC resins
  • marking can be rapidly carried out; for instance, if this is a line having a width of about 1.0 mm, writing can be carried out at a speed of 200 mm/sec or more.
  • This invention encompasses resin compositions of various formulations, but it is not necessary to carefully investigate the optimal irradiation conditions for each composition; nor is there any restriction on the resins used as the ingredients. Afurther advantage of the resin compositions according to the present invention is that the production steps can be simplified.
  • Tables 1-5 The ingredients shown in Tables 1-5 were selected from the following ingredients, and pellets were prepared by extrusion using an extruder. Molded pieces measuring 50x50x3mm were injection-molded using these pellets. The temperature during extrusion and the temperature at the time of injection molding are indicated in Tables 1-5.
  • Marking was carried out on the surface of these molded pieces using a CO 2 gas laser or a YAG laser.
  • the marking conditions were as follows:
  • compositions which contain laser marking additives form distinct marks by means of laser light irradiation, regardless, for the most part, of the type of resin.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Laser Beam Processing (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
EP93302756A 1992-04-16 1993-04-07 Resin compositions for laser marking Withdrawn EP0566312A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP04121028A JP3102818B2 (ja) 1992-04-16 1992-04-16 レーザーマーキング用樹脂組成物
JP121028/92 1992-04-16

Publications (1)

Publication Number Publication Date
EP0566312A1 true EP0566312A1 (en) 1993-10-20

Family

ID=14801033

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93302756A Withdrawn EP0566312A1 (en) 1992-04-16 1993-04-07 Resin compositions for laser marking

Country Status (2)

Country Link
EP (1) EP0566312A1 (ja)
JP (1) JP3102818B2 (ja)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0680831A1 (en) * 1994-05-04 1995-11-08 Dsm N.V. Shaped article with a marking on a thermoplastic substrate and a process for the manufacture of the shaped article
EP0572178B1 (en) * 1992-05-29 1997-04-16 Ge Plastics Japan Limited Resin compositions for laser marking
EP0822229A1 (en) * 1995-04-18 1998-02-04 Nippon Zeon Co., Ltd. Polyimide resin composition
WO2013183000A1 (en) * 2012-06-04 2013-12-12 Sabic Innovative Plastics Ip B.V. Marked thermoplastic compositions, methods of making and articles comprising the same, and uses thereof
US9209443B2 (en) 2013-01-10 2015-12-08 Sabic Global Technologies B.V. Laser-perforated porous solid-state films and applications thereof
US9662833B2 (en) 2012-06-04 2017-05-30 Sabic Global Technologies B.V. Marked thermoplastic compositions, methods of making and articles comprising the same, and uses thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001030896A1 (fr) * 1999-10-27 2001-05-03 Kaneka Corporation Mousse en resine styrene extrudee et son procede de production
WO2002057369A1 (fr) 2001-01-22 2002-07-25 Idemitsu Petrochemical Co., Ltd. Resine et compositions de resine destinees au marquage au laser et articles moules obtenus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032691A (en) * 1974-03-22 1977-06-28 Fuji Photo Film Co., Ltd. Recording material
DE8210186U1 (ja) * 1982-04-08 1987-10-01 Gao Gesellschaft Fuer Automation Und Organisation Mbh, 8000 Muenchen, De
EP0190997B1 (de) * 1985-02-05 1991-10-09 Novartis AG Laserbeschriftung pigmentierter Systeme

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032691A (en) * 1974-03-22 1977-06-28 Fuji Photo Film Co., Ltd. Recording material
DE8210186U1 (ja) * 1982-04-08 1987-10-01 Gao Gesellschaft Fuer Automation Und Organisation Mbh, 8000 Muenchen, De
EP0190997B1 (de) * 1985-02-05 1991-10-09 Novartis AG Laserbeschriftung pigmentierter Systeme

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 12, no. 96 (C-484)29 March 1988 & JP-A-62 227 955 ( TOSHIBA CORPORATION ) 6 October 1987 *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0572178B1 (en) * 1992-05-29 1997-04-16 Ge Plastics Japan Limited Resin compositions for laser marking
EP0680831A1 (en) * 1994-05-04 1995-11-08 Dsm N.V. Shaped article with a marking on a thermoplastic substrate and a process for the manufacture of the shaped article
BE1008341A3 (nl) * 1994-05-04 1996-04-02 Dsm Nv Vormdeel met een markering op een ondergrond van een thermoplastische kunststof en een werkwijze voor de bereiding van het vormdeel.
US6734248B2 (en) 1995-04-18 2004-05-11 Nippon Zeon Co., Ltd. Pattern forming process using polyimide resin composition
US6310135B1 (en) 1995-04-18 2001-10-30 Nippon Zeon Co., Ltd. Polyimide resin composition
EP0822229B1 (en) * 1995-04-18 2003-07-30 Nippon Zeon Co., Ltd. Polyimide resin composition
EP0822229A1 (en) * 1995-04-18 1998-02-04 Nippon Zeon Co., Ltd. Polyimide resin composition
US6743851B2 (en) 1995-04-18 2004-06-01 Nippon Zeon Co., Ltd. Polyimide film
WO2013183000A1 (en) * 2012-06-04 2013-12-12 Sabic Innovative Plastics Ip B.V. Marked thermoplastic compositions, methods of making and articles comprising the same, and uses thereof
CN104349887A (zh) * 2012-06-04 2015-02-11 沙特基础创新塑料Ip私人有限责任公司 标记的热塑性组合物、制造方法和包含其的制品及其用途
US9168696B2 (en) 2012-06-04 2015-10-27 Sabic Global Technologies B.V. Marked thermoplastic compositions, methods of making and articles comprising the same, and uses thereof
CN104349887B (zh) * 2012-06-04 2017-05-10 沙特基础全球技术有限公司 标记的热塑性组合物、制造方法和包含其的制品及其用途
US9662833B2 (en) 2012-06-04 2017-05-30 Sabic Global Technologies B.V. Marked thermoplastic compositions, methods of making and articles comprising the same, and uses thereof
US10639851B2 (en) 2012-06-04 2020-05-05 Sabic Global Technologies Ip B.V. Marked thermoplastic compositions, methods of making and articles comprising the same, and uses thereof
US9209443B2 (en) 2013-01-10 2015-12-08 Sabic Global Technologies B.V. Laser-perforated porous solid-state films and applications thereof

Also Published As

Publication number Publication date
JPH05295274A (ja) 1993-11-09
JP3102818B2 (ja) 2000-10-23

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