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Title:
FLAME-RETARDANT RESIN COMPOSITION FOR TRANSMISSION SIDE MEMBER IN LASER WELDING
Document Type and Number:
WIPO Patent Application WO/2007/077794
Kind Code:
A1
Abstract:
Disclosed is a flame-retardant resin composition (for a transmission side member) for laser welding, which is composed of a polyester resin (A) and at least one phosphinic acid material (B) selected from phosphinates, diphosphinates and polymerized products of them (preferably a metal salt or the like). The laser light transmittance of a molded article of such a resin composition may be not less than 15% when the molded article has a thickness of 2 mm. The resin composition may further contain a fluorine-containing resin, a nitrogen-containing flame retardant (such as a triazine compound and cyanuric acid and/or isocyanuric acid and a salt), and/or a filler (glass fibers or the like). This resin composition enables to attain both high level of laser welding performance (laser transmission) and high flame retardance.

Inventors:
HARUHARA JUN (JP)
HIRAKAWA TAKAKAZU (JP)
HANABUSA KAZUHITO (JP)
Application Number:
PCT/JP2006/325781
Publication Date:
July 12, 2007
Filing Date:
December 25, 2006
Export Citation:
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Assignee:
WINTECH POLYMER LTD (JP)
HARUHARA JUN (JP)
HIRAKAWA TAKAKAZU (JP)
HANABUSA KAZUHITO (JP)
International Classes:
C08L67/02; B29C65/16; C08K5/00; C08K5/5313; C08K13/02; B29K67/00
Domestic Patent References:
WO2005035657A12005-04-21
Foreign References:
JP2005187798A2005-07-14
JP2000508365A2000-07-04
JP2000219772A2000-08-08
JPH0873720A1996-03-19
JPH05230348A1993-09-07
JP2000256545A2000-09-19
JPH0570671A1993-03-23
JP2003136601A2003-05-14
JP2001026656A2001-01-30
JP2000309694A2000-11-07
JP2001071384A2001-03-21
JPS62142092A1987-06-25
Other References:
See also references of EP 1967549A4
Attorney, Agent or Firm:
KUWATA, Mitsuo (6th Floor Minato Umeda Building, 3-17, Nishitemma 6-chome, Kita-ku, Osaka-sh, Osaka 47, JP)
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