Method for making a fiber glass and cellulose mat in cationic medium
US8157957B2 · kind B2 · utility
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5References
37Claims
0Family size
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Key dates
| Filing date | Jan 7, 2004 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Dec 24, 2026 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H13/40
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for producing a veil comprising glass fibers and cellulose fibers which includes dispersing cellulose fibers and chopped glass fibers into a white water, forming a bed in a forming device by passage of the dispersion over a forming fabric through which the white water is drained off, the fibers being retained on the fabric and the dispersion including, during passage, a cationic white water, and performing a heat treatment step an oven device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.