Polyurethane foam game ball, composition and process
US4454253A · kind A · utility
31Cited by
9References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1983 |
| Grant date | Jun 12, 1984 |
| Priority date | — |
| Expiry date | Sep 19, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S521/904
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An improved game ball is manufactured from a polyurethane foam prepared from a hydroxyl-containing diene polymer, a catalyst system comprised of a tin compound and a tertiary amine and a surfactant system comprised of a non-hydrolyzable silicone-polyether copolymer and a polydialkylsiloxane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.