Masterbatch, resin composition, and resin molded article

JP2026100503APending Publication Date: 2026-06-19DAINICHISEIKA COLOR & CHEMICALS MFG CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
DAINICHISEIKA COLOR & CHEMICALS MFG CO LTD
Filing Date
2024-12-09
Publication Date
2026-06-19

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Abstract

The present invention provides a masterbatch that, when diluted with a polyester resin, yields a resin composition with good processability and moldability, as well as good transparency and low yellowness. [Solution] A masterbatch containing an amorphous resin (A) and a chain extender (B) having a weight-average epoxy functional group count of 2 to 70 and a weight-average molecular weight of 100 to 100,000. The content of the chain extender (B) in the masterbatch is 2% to 34% by mass based on the total mass of the masterbatch, and it is a masterbatch for sealing members.
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