| 摘要 |
<p>The invention relates to a visor for a helmet provided with a plastic film of a polyfluorinated polyolefin in order to prevent adherence of water, snow or ice to the surface. The invention furthermore relates to the use of a polyfluorinated polyolefin film on visors to prevent adherence of water, snow or ice to the visor. Preferably, the polyfluorinated polyolefin is a PFA or FEP film. The helmet can be a helmet suitable for driving a motorbike, for the police or soldiers, or in sports.</p> |
