Title:
THERMOPLASTIC RESIN COMPOSITION FOR LASER MARKING AND MOLDED ARTICLE COMPRISING SAID COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2021/166342
Kind Code:
A1
Abstract:
An object of the present invention is to provide a thermoplastic resin composition that contains carbon black and permits high-luminance, stable laser marking, and a molded article comprising the thermoplastic resin composition. An object of the present invention is achieved by a thermoplastic resin composition for laser marking that includes at least a thermoplastic resin A and carbon black B. The amount of carbon black B added is 0.01-5 mass parts per 100 mass parts of thermoplastic resin, and the 5% weight loss temperature of the carbon black B is 580°C or lower.
Inventors:
USHIJIMA RYUJI (JP)
GOSHIMA KAZUYA (JP)
GOSHIMA KAZUYA (JP)
Application Number:
PCT/JP2020/042710
Publication Date:
August 26, 2021
Filing Date:
November 17, 2020
Export Citation:
Assignee:
POLYPLASTICS CO (JP)
International Classes:
C08L101/00; C08K3/04; C08L67/00
Foreign References:
| JP2019104807A | 2019-06-27 | |||
| JP2006305926A | 2006-11-09 | |||
| JP2014031523A | 2014-02-20 | |||
| JP2017141406A | 2017-08-17 | |||
| JPH11140284A | 1999-05-25 |
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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