Title (en)

Thermoplastic resin composition having laser marking ability

Title (de)

Mit Laser beschriftbare thermoplastische Harzzusammensetzung

Title (fr)

Composition de résine thermoplastique apte à l'inscription par laser

Publication

EP 0753536 A1 19970115 (EN)

Application

EP 95304916 A 19950713

Priority

EP 95304916 A 19950713

Abstract (en)

A thermoplastic resin composition having laser marking ability, which comprises a thermoplastic resin and at least two kinds of metal oxides, pregerably a glaze, the content of total metal oxides being 0.001 to 10 parts by weight per 100 parts by weight of said thermoplastic resin. The term metal includes silicon, boron and phosphorus. A keyboard having keys composed of the above composition is also claimed.

IPC 1-7

C08K 3/00; C08K 3/22; C08K 3/32; C08K 3/34; C08K 3/38; C08L 101/00; C08L 67/02; B41M 1/30

IPC 8 full level

B41M 5/26 (2006.01)

CPC (source: EP)

B41M 5/267 (2013.01)

Citation (applicant)

• JP S6111771 A 19860120 - HITACHI LTD
• JP H01254743 A 19891011 - BAYER AG
• JP S6141320 A 19860227 - TEIJIN LTD
• JP S61192737 A 19860827 - CIBA GEIGY AG
• JP H0246314 A 19900215 - JACOB WERNER
• JP H04246456 A 19920902 - TEIJIN LTD
• JP H0259663 A 19900228 - SHIMADZU CORP

Citation (search report)

• [X] DE 4235302 A1 19940421 - BAYER AG [DE]
• [X] DE 4329395 A1 19950302 - HOECHST AG [DE]
• [X] EP 0190997 A2 19860813 - CIBA GEIGY AG [CH] & JP S61192737 A 19860827 - CIBA GEIGY AG
• [X] EP 0400305 A2 19901205 - HUELS CHEMISCHE WERKE AG [DE]
• [X] EP 0105451 A2 19840418 - PHILLIPS PETROLEUM CO [US]
• [X] US 5422383 A 19950606 - TAKAHASHI JUN [JP], et al
• [A] DE 1933338 A1 19700430 - HARRISON MAYER LTD
• [X] DATABASE WPI Week 9424, Derwent World Patents Index; AN 94-197319

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0753536 A1 19970115; EP 0753536 B1 20000510; DE 69516862 D1 20000615; DE 69516862 T2 20010201

DOCDB simple family (application)

EP 95304916 A 19950713; DE 69516862 T 19950713