Manufacturing method for a film or product comprising an amphiphilic polymer
US10358772B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2016 |
| Grant date | Jul 23, 2019 |
| Priority date | — |
| Expiry date | Jul 29, 2036 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H23/28
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for manufacturing of a film, wherein said film is manufactured in a paper or paper board machine, wherein the method comprises the steps of providing a solution of a nanofibrillated poly-saccharide, wherein said solution comprises from 0.01 to 50 weight-% nanofibrillated polysaccharide, and wherein the nanofibrillated polysaccharide is any one of microfibrillated cellulose, nanofibrillated cellulose, nanocrystalline cellulose, microcrystalline cellulose, cellulose whiskers and cellulose derivative or a combination or mixture thereof, wherein the method further comprises the steps of providing an amphiphilic polymer; and providing a mixture of said amphiphilic polymer and said solution comprising nanofibrillated polysaccharide, whereby an intermediate solution is obtained; bringing said intermediate solution into a foam; providing said foam in the paper or board machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.