Windshield wiper having reduced friction characteristics
US7373687B2 · kind B2 · utility
5Cited by
17References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2006 |
| Grant date | May 20, 2008 |
| Priority date | — |
| Expiry date | May 15, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31663
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A wiper blade made of a compound having a methyl vinyl silicone polymer, a filler, and a friction-reducing additive is provided. The friction-reducing additive is present in an amount from between about 5 and 42 weight percent, preferably 11 percent. The average particle size of the friction-reducing additive is preferably less than about 25 microns, thereby permitting extrusion of the compound into the shape of a wiper blade. Polytetrafluoroethylene is preferred as a friction-reducing additive, but other substances, such as boron nitride or graphite could be used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.