Patent ID: 11873416
Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  A | IPC A  C

Claim 18:
19. The golf ball according to claim 15, wherein the polyol composition contains the urethane polyol, and the polyisocyanate composition contains a biuret-modified product of hexamethylene diisocyanate, an isocyanurate-modified product of hexamethylene diisocyanate and an isocyanurate-modified product of isophorone diisocyanate, and a mass ratio (biuret-modified product/isocyanurate-modified product) of the biuret-modified product of hexamethylene diisocyanate to the isocyanurate-modified product of hexamethylene diisocyanate ranges from 20/40 to 40/20.