Polyetherpolyurethane end caps for oil filters
US5468835A · kind A · utility
1Cited by
23References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 20, 1994 |
| Grant date | Nov 21, 1995 |
| Priority date | — |
| Expiry date | Apr 20, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2340/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A new polyetherpolyurethane system for the formation of end caps for oil filters is disclosed using a blended oxyalkylene polyol having a functionality greater than 2 and the absence of any oxyethylene component. The blend having a functionality greater than 2 is mixed with a diol cross linker prior to reacting with an isocyanate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.