TW372995B - A thermoplastic resin composition for constituting keys of a keyboard and method of making key of a key board - Google Patents

A thermoplastic resin composition for constituting keys of a keyboard and method of making key of a key board

Info

Publication number
TW372995B
TW372995B TW084107299A TW84107299A TW372995B TW 372995 B TW372995 B TW 372995B TW 084107299 A TW084107299 A TW 084107299A TW 84107299 A TW84107299 A TW 84107299A TW 372995 B TW372995 B TW 372995B
Authority
TW
Taiwan
Prior art keywords
thermoplastic resin
resin composition
key
keyboard
oxide
Prior art date
Application number
TW084107299A
Other languages
Chinese (zh)
Inventor
En-Lai Zhang
Kiyoshi Sugei
Mioko Suzuki
Zenya Ogawa
Original Assignee
Teijin 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11548505&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=TW372995(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Teijin Ltd filed Critical Teijin Ltd
Application granted granted Critical
Publication of TW372995B publication Critical patent/TW372995B/en

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  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Push-Button Switches (AREA)

Abstract

A thermoplastic resin composition for constituting keys of a keyboard, said thermoplastic resin composition comprising (a) a thermoplastic resin and (b) a glaze having an oxide composition represented by the following formula: R1-2OxR'2O3.yR"O2-3, wherein R1-2O stands for an oxide of monovalent or divalent metal; R'2O3 stands for an oxide of a trivalent metal; R"O2-3 stands for an oxide of tetra- to hexa-valent metal; x is a number ranging 0.1 to 1.2 and y, a number ranging 1 to 12, the content of the glaze being 0.001 to 2 parts by weight per 100 parts by weight of said thermoplastic resin, said thermoplastic resin composition being markable upon exposure to laser radiation, said keys having a their tops laser marked numerals or codes.
TW084107299A 1994-01-17 1995-07-14 A thermoplastic resin composition for constituting keys of a keyboard and method of making key of a key board TW372995B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6003120A JP2948084B2 (en) 1994-01-17 1994-01-17 Thermoplastic resin composition

Publications (1)

Publication Number Publication Date
TW372995B true TW372995B (en) 1999-11-01

Family

ID=11548505

Family Applications (1)

Application Number Title Priority Date Filing Date
TW084107299A TW372995B (en) 1994-01-17 1995-07-14 A thermoplastic resin composition for constituting keys of a keyboard and method of making key of a key board

Country Status (2)

Country Link
JP (1) JP2948084B2 (en)
TW (1) TW372995B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960022768A (en) * 1994-12-30 1996-07-18 성재갑 Thermoplastic composition for laser marking
JP3413329B2 (en) * 1996-06-28 2003-06-03 ポリプラスチックス株式会社 Laser marking method and laser-marked molded product
WO2005000969A1 (en) * 2003-06-27 2005-01-06 Toyo Ink Mfg. Co., Ltd. Resin composition for light amplification beam by stimulated emission of radiation and use thereof
JP4391287B2 (en) * 2004-03-26 2009-12-24 大日本印刷株式会社 Securities paper
DE102004050557B4 (en) * 2004-10-15 2010-08-12 Ticona Gmbh Laser-markable molding compounds and products and methods for laser marking obtainable therefrom
JP2010189557A (en) * 2009-02-19 2010-09-02 Mitsubishi Plastics Inc Polyester film

Also Published As

Publication number Publication date
JPH07207062A (en) 1995-08-08
JP2948084B2 (en) 1999-09-13

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Legal Events

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MM4A Annulment or lapse of patent due to non-payment of fees