Surface sizing composition and method
US5484509A · kind A · utility
8Cited by
6References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1994 |
| Grant date | Jan 16, 1996 |
| Priority date | — |
| Expiry date | Aug 3, 2014 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/36
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for treating paper which comprises applying to the surface of the paper an aqueous medium containing a sizing composition consisting essentially of 75 to 99.9 wt % polyvinyl alcohol which is at least 95 mole % hydrolyzed and 0.1 to 25 wt % ketene dimer represented by the formula: ##STR1## wherein R and R.sup.1 are the same or different hydrocarbyl groups having 8-30 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.