Wet-strength of wet glass fiber mats by treatment with anionic polyelectrolytes
US4178204A · kind A · utility
17Cited by
6References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 24, 1978 |
| Grant date | Dec 11, 1979 |
| Priority date | — |
| Expiry date | Jan 24, 1998 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/43
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In accordance with the present invention, there is provided herein a method of increasing the strength of wet glass fiber mats prepared by the wet-laid process. The wet-strength of such freshly prepared glass fiber mats are improved in this invention by treating the wet mat with a dilute solution of an anionic polyelectrolyte. As a feature of the invention, the wet-strength of such mats are increased substantially so that they may be conveniently handled and transferred, even manually, for further processing, e.g. for applying binders and drying, into the finished glass fiber mat product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.