Process for sizing cellulose fibre containing material
US3930932A · kind A · utility
4Cited by
4References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1974 |
| Grant date | Jan 6, 1976 |
| Priority date | — |
| Expiry date | Jan 31, 1994 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/17
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a process for sizing cellulose fibers or cellulose fiber containing materials and a composition for carrying out the process. According to the process the time for developing full sizing effect of ketene dimers and carbamoyl chlorides is reduced by carrying out sizing in the presence of a chloroformate or an isocyanate. The composition for carrying out the process comprises of a paper sizing composition containing the sizing agents mentioned above in combination with a chloroformate or an isocyanate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.