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Title:
COLORED THERMOPLASTIC RESIN COMPOSITIONS FOR LASER WELDING, SPECIFIC NEUTRAL ANTHRAQUINONE DYES AS COLORANTS THEREFOR, AND MOLDED PRODUCT THEREFROM
Document Type and Number:
WIPO Patent Application WO2002038665
Kind Code:
A3
Abstract:
Thermoplastic resin compositions suitable for laser welding are disclosed, which include a mixture of neutral anthraquinone dyes and at least one other red dye to absorb and transmit select regions of visible light and to enhance weldability.

Inventors:
KOSHIDA REIKO
HATASE YOSHITERU
HAYASHI RYUICHI
SUMI HIROYUKI
Application Number:
PCT/US2001/048326
Publication Date:
July 18, 2002
Filing Date:
November 13, 2001
Export Citation:
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Assignee:
DU PONT (US)
ORIENT CHEMICAL IND (JP)
International Classes:
B23K26/18; B23K26/32; B23K26/00; B29C65/00; B29C65/16; C08K3/04; C08K5/00; C08K5/08; C08K5/17; C08K5/18; C08K5/3437; C08K5/3467; C08L1/00; C08L67/00; C08L77/00; C08L101/00; C09B56/00; (IPC1-7): C08K5/34; C07C50/18
Foreign References:
US4755012A1988-07-05
US5968688A1999-10-19
US5893959A1999-04-13
US5973038A1999-10-26
Other References:
See also references of EP 1353990A4
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