Paper products and methods and systems for manufacturing such products
US7867358B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 3, 2009 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | Apr 3, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Methods of producing cellulosic or lignocellulosic materials for use in papermaking include treating a cellulosic or lignocellulosic dry feedstock having a first average molecular weight with ionizing radiation, and controlling the dose of ionizing radiation such that the average molecular weight of the feedstock is reduced to a predetermined level. A method of producing an irradiated paper product includes treating a paper product including a first carbohydrate-containing material having a first molecular weight with ionizing radiation, and controlling the dose of ionizing radiation so as to provide an irradiated paper product with a second carbohydrate-containing material having a second molecular weight higher than the first molecular weight. Pulp and paper products are produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.