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Title:
THERMOPLASTIC RESIN COMPOSITION FOR REFLECTIVE MATERIAL, REFLECTIVE PLATE, AND LIGHT-EMITTING DIODE ELEMENT
Document Type and Number:
WIPO Patent Application WO/2013/018360
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a thermoplastic resin composition for a reflective material which has excellent molded product mechanical strength, represented especially by toughness, excellent heat resistance, high reflectance, and excellent moldability, and which makes it possible to obtain a reflective plate with little decline in reflectance caused by heating such as in the steps for producing an LED or in a reflow soldering step. A first embodiment of this thermoplastic resin composition for a reflective material includes: 30 to 85 mass% of a polyester resin (A) that has a melting point or glass transition temperature of 250°C or higher and includes an alicyclic hydrocarbon structure; 0.1 to 15 mass% of a thermoplastic resin (B) that has a polyolefin backbone and a functional group structure; 5 to 50 mass% of a white pigment (C); and 10 to 50 mass% of an inorganic filler (D); the thermoplastic resin (B) either including 0.1 to 1.8 wt% of a functional group structure unit (B1) that further includes a heteroatom, or further including an aromatic hydrocarbon structure (B2), and the limiting viscosity [η] being 0.04 to 1.0 dl/g.

Inventors:
OGASAWARA HIDETO
HAMA TAKASHI
KAWABE KUNIAKI
KANAYA HIROTAKA
TAKIZAWA NOBUHIRO
AMANO AKINORI
EBATA HIROKI
KOMIYA KAN
Application Number:
PCT/JP2012/004872
Publication Date:
February 07, 2013
Filing Date:
July 31, 2012
Export Citation:
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Assignee:
MITSUI CHEMICALS INC (JP)
OGASAWARA HIDETO
HAMA TAKASHI
KAWABE KUNIAKI
KANAYA HIROTAKA
TAKIZAWA NOBUHIRO
AMANO AKINORI
EBATA HIROKI
KOMIYA KAN
International Classes:
C08L67/02; C08K3/00; C08K3/22; C08L51/06; G02B5/08
Domestic Patent References:
WO2001053369A12001-07-26
WO2001027124A12001-04-19
Foreign References:
JP2009507990A2009-02-26
JPH07242810A1995-09-19
JPH04142362A1992-05-15
JPH03223340A1991-10-02
JP4245716B22009-04-02
JP4117130B22008-07-16
JP2008182172A2008-08-07
JP2009507990A2009-02-26
JPS5763310A1982-04-16
JPS5883006A1983-05-18
JPH03706A1991-01-07
JP3476793B22003-12-10
JPH04218508A1992-08-10
JP2003105022A2003-04-09
JPH03193796A1991-08-23
JPH0241303A1990-02-09
Other References:
See also references of EP 2740766A4
Attorney, Agent or Firm:
WASHIDA, KIMIHITO (JP)
Koichi Washida (JP)
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Claims:



 
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