Title:
POLYESTER RESIN COMPOSITION, AND COMPONENT FOR OPTICALLY REFLECTIVE MEMBER AND OPTICALLY REFLECTIVE MEMBER CONTAINING SAME
Document Type and Number:
WIPO Patent Application WO/2019/188921
Kind Code:
A1
Abstract:
Provided is a polyester resin composition that has high heat resistance and low gas properties, and is capable of greatly reducing mold contamination during continuous molding, and of reducing flow mark formation. The polyester resin composition contains: a polyester resin A containing 82–88 mass% polybutylene terephthalate resin and 12–18 mass% polyethylene terephthalate resin; a metal organic acid salt B constituted by an organic acid salt of an alkali metal and/or an organic acid salt of an alkaline earth metal; and 1–13 parts by mass, per 100 parts by mass of the polyester resin A, of an inorganic filler C having an average particle size of 0.05–3 μm. The composition contains 0.000005–0.05 parts by mass of alkali metal atoms and/or alkaline earth metal atoms per 100 parts by mass of the polyester resin A, and 1,000 mg/kg or less of a linear oligomer such as polybutylene terephthalate.
Inventors:
FURUKAWA KAORI (JP)
SHIMIZU TAKAHIRO (JP)
SHIMOHARAI TAKUYA (JP)
SHIMIZU TAKAHIRO (JP)
SHIMOHARAI TAKUYA (JP)
Application Number:
PCT/JP2019/012393
Publication Date:
October 03, 2019
Filing Date:
March 25, 2019
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
C08L67/02; C08K3/00; C08K5/098; G02B5/08
Domestic Patent References:
| WO2017038581A1 | 2017-03-09 | |||
| WO2012147871A1 | 2012-11-01 | |||
| WO2018143077A1 | 2018-08-09 | |||
| WO2018143100A1 | 2018-08-09 |
Foreign References:
| JP2017048374A | 2017-03-09 |
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