Fiber treatment for application of protective film
US6210446A · kind A · utility
Inventor
Key dates
| Filing date | Oct 21, 1999 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | Oct 21, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1116
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Carpet masking film is reliably and removably applied to used carpet of unknown condition. In a pretreatment, the carpet is cleaned by physical separation of visible debris, followed by chemical or solvent cleaning of grease and soluble factors, restoring the carpet to a clean appearance. A primer layer is applied over the clean carpet fiber in quantity sufficient to establish a barrier and separation layer on top of the carpet fiber. Subsequently, a sprayed adhesive layer is applied over the primer layer. A carpet masking film is applied over the surface of the sprayed adhesive. The masking film may carry its own adhesive layer, which is applied to the sprayed adhesive to create a bonded sandwich structure that is removable as a unit with the masking film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.