Process for coating paper, paperboard, and molded fiber with a water-dispersible polyester polymer
US7435483B2 · kind B2 · utility
16Cited by
57References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2002 |
| Grant date | Oct 14, 2008 |
| Priority date | — |
| Expiry date | Sep 7, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2213
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Disclosed are coated fiber-containing articles, including paper, paperboard, and molded fiber, and methods for preparing such articles. A preferred method comprises heating paperboard containing a polymeric binder to a temperature sufficient to remove at least some moisture from the paperboard; applying an aqueous dispersion or solution of at least one water-dispersible or water-soluble polymer to the paperboard product; heating the paperboard to at least partially cure the water-dispersible or water-soluble polymer; and cooling the paperboard to at least 160° F. to reduce the tackiness of the cured water-dispersible polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.