High performance environmentally friendly sealant composition for tire repair
US9963620B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 29, 2016 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Mar 25, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2003/3045
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An environmentally friendly puncture sealing composition is provided which includes natural rubber latex, suitably high filtered natural rubber latex having a controlled particle size, and an aqueous antifreeze agent that includes water, glycerin and propylene glycol. The aqueous antifreeze agent has a viscosity profile similar to common ethylene glycol-based antifreeze agents, but is free of ethylene glycol. The puncture sealing composition avoids the environmental hazards of ethylene glycol, and is effective at temperatures of −30° C. and lower.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.