Surface sizing of cellulose based products
US6087457A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 29, 1996 |
| Grant date | Jul 11, 2000 |
| Priority date | — |
| Expiry date | Mar 29, 2016 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/34
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method of surface sizing cellulose based products such as paper, board and paper board. The method comprises applying to the surface of said products an aqueous dispersion of a copolymer obtainable by free-radical emulsion polymerization of a monomers mixture comprising at least one monomer selected from the group consisting of styrene and derivatives thereof; at least one monomer selected from the group consisting of esters of ethylenically unsaturated carboxylic acids and alkanols; and at least one monomer selected from the group consisting of ethylenically unsaturated carboxylic and sulfonic acids and salt thereof; optionally in combination with other ethylenically unsaturated copolymerizable monomers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.