Invention Grant
- Patent Title: Golf ball
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Application No.: US16653382Application Date: 2019-10-15
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Publication No.: US10702747B2Publication Date: 2020-07-07
- Inventor: Toshiyuki Tarao , Mami Tanaka
- Applicant: Sumitomo Rubber Industries, Ltd.
- Applicant Address: JP Kobe-Shi, Hyogo
- Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee Address: JP Kobe-Shi, Hyogo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@122689f4
- Main IPC: A63B37/06
- IPC: A63B37/06 ; A63B37/00 ; C08L33/10 ; C08L29/04

Abstract:
A golf ball strikes a good balance between the durability and the shot feeling, and includes a spherical core and at least one cover disposed outside the spherical core. At least one layer of the cover contains (A) a base resin and (B) a resin fine particle, (A) the base resin contains an ionomer resin, and (B) the resin fine particles contain a polyrotaxane component having a cyclodextrin, a linear molecule penetrating the cyclic structure of the cyclodextrin in a skewering manner, and blocking groups located at both terminals of the linear molecule to prevent disassociation of the cyclodextrin wherein at least a part of hydroxyl groups of the cyclodextrin is modified with a caprolactone chain via a —O—C3H6—O— group.
Public/Granted literature
- US20200114215A1 GOLF BALL Public/Granted day:2020-04-16
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