Low cost, resilient, shear resistant polyurethane elastomers for golf ball covers
US6309313A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 6, 2000 |
| Grant date | Oct 30, 2001 |
| Priority date | — |
| Expiry date | Mar 6, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/6674
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed herein is a golf ball comprising a core and a cover, said cover comprising a polyurethane elastomer comprising the reaction product of: PA1 A) at least one diisocyanate monomer; PA1 B) at least one polyether polyol having a molecular weight greater than 1000 and selected from the group consisting of homopolymers of ethylene oxide, homopolymers of propylene oxide, and copolymers of ethylene oxide and propylene oxide; and PA1 C) at least one hydroxy or amine functional chain extender; wherein the ratio of equivalents of chain extender plus polyol to equivalents of isocyanate is in the range of from about 0.6:1 to about 1.2:1, whereby said polyurethane elastomer possesses high shear resistance and good resilience.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.