Deacidifying and reinforcing agent for cellulose acetate film
US10907067B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2017 |
| Grant date | Feb 2, 2021 |
| Priority date | — |
| Expiry date | Apr 8, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20204
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for preparing a deacidifying and reinforcing agent for a cellulose acetate film includes steps of: ultrasonically dispersing a nanometer alkaline oxide into an ethyl cellulose n-butanol solution, so as to form a nanometer alkaline oxide suspension, then adding a mixture of E51 EPOXY RESIN and a curing agent thereof; wherein the nanometer alkaline oxide is a nanometer magnesium oxide, a nanometer cerium oxide, a nanometer magnesium hydroxide, a nanometer potassium carbonate, a nanometer calcium hydroxide or a nanometer barium hydroxide. A method for using the deacidifying and reinforcing agent includes steps of: evenly applying the deacidifying and reinforcing agent on a surface of a cellulose acetate film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.