- Patent Title: Masterbatch, resin molding material, molded body, methods for manufacturing the masterbatch, the resin molding material, and the molded body, and method for evaluating masterbatch
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Application No.: US16072310Application Date: 2016-12-20
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Publication No.: US11548988B2Publication Date: 2023-01-10
- Inventor: Atsushi Inoue
- Applicant: TOKYO PRINTING INK MFG. CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: TOKYO PRINTING INK MFG. CO., LTD.
- Current Assignee: TOKYO PRINTING INK MFG. CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Rankin, Hill & Clark LLP
- Priority: JPJP2016-013389 20160127
- International Application: PCT/JP2016/087922 WO 20161220
- International Announcement: WO2017/130608 WO 20170803
- Main IPC: C08J3/22
- IPC: C08J3/22 ; C08K3/04 ; C08L23/06 ; B29C45/00 ; C08L67/00 ; C08L69/00 ; C08L77/00 ; C08L101/00 ; C08L33/12 ; B29C45/26 ; C08K5/23 ; C08K5/3437 ; C08L23/12 ; C08L67/02 ; B29C45/37 ; C08K3/013 ; B29K105/00
Abstract:
The masterbatch contains a black pigment and a masterbatch thermoplastic resin, the masterbatch satisfying the following conditions:
(Conditions) when a resin plate is produced by kneading 100 parts by weight of polypropylene having a melt flow rate of 30 g/10 min (JIS K7210:1999) and a density of 0.9 g/cm3 (JIS K7112:1999) with respect to 3 parts by weight of the masterbatch and subjecting the mixture to injection molding using a mold polished by a coated abrasive with a particle size of #800 (JIS R6001:1998), a* values and b* values of a surface of the resin plate in the L*a*b* color system satisfy specific conditions.
(Conditions) when a resin plate is produced by kneading 100 parts by weight of polypropylene having a melt flow rate of 30 g/10 min (JIS K7210:1999) and a density of 0.9 g/cm3 (JIS K7112:1999) with respect to 3 parts by weight of the masterbatch and subjecting the mixture to injection molding using a mold polished by a coated abrasive with a particle size of #800 (JIS R6001:1998), a* values and b* values of a surface of the resin plate in the L*a*b* color system satisfy specific conditions.
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