Method for manufacturing paper, device for manufacturing additive for manufacturing paper, and device for manufacturing paper
US11459702B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 14, 2017 |
| Grant date | Oct 4, 2022 |
| Priority date | — |
| Expiry date | Mar 27, 2037 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/20
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Provided are a method for manufacturing paper with which it is possible to easily manufacture paper wherein water-filterability and yield are excellent and hydrophilia is suppressed without using a cationic polymer or silica, a device for manufacturing an additive for manufacturing paper, and a device for manufacturing paper. The method for manufacturing paper is a method having a reactant generating step for generating a reactant by subjecting an acrylamide polymer to a Hoffman elimination reaction, and a supply step for supplying the reactant to a paper machine within 24 hours of the start of the Hoffman elimination reaction. The acrylamide polymer preferably includes an acrylamide polymer having a intrinsic viscosity of 12.5-28 dl/g and anionization of 0.3 meq/g or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.