Treated porous material
US10315330B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2015 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Jul 19, 2035 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M15/09
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A treated cellulosic material comprising a cellulosic material having a porous structure defining a plurality of pores, at least a portion of the pores containing a treating agent comprising a polymer comprising a modified cellulose polymer; and a modifying agent comprising a hydrophobic amine, a metal ion, or a quat. The present disclosure further describes a method for preparing a treated cellulosic material comprising (a) providing a cellulosic material; (b) a first treatment protocol comprising impregnating the cellulosic material with a dispersion comprising a polymer, the polymer comprising a modified cellulose polymer; and (c) a second treatment protocol comprising impregnating the cellulosic material with a modifying agent, the modifying agent comprising a hydrophobic amine, a metal ion, or a quat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.