Hot-press gas grafting hydrophobization apparatus, and eco-friendly oil-absorbing low- weight paper manufactured using same
US11905664B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 17, 2019 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Dec 31, 2040 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H27/002
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a press-heating gas grafting hydrophobization apparatus, and a hot water-resistant paper and an oil-absorbing paper manufactured using the press-heating gas grafting hydrophobization apparatus. In the press-heating gas grafting hydrophobization apparatus according to the present invention, since a non-air-permeable dryer belt is provided surrounding and pressing a drying roller to prevent dissipation from a base material of a fatty acid chloride vaporized by the drying roller, the press-heating gas grafting hydrophobization apparatus has an advantage of improving efficiency of a gas grafting reaction. Therefore, by using the press-heating gas grafting hydrophobization apparatus according to the present invention, the reaction amount of fatty acid chloride per unit area can be remarkably improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.