Procedure for Increasing the Hydrophilicity of a Polymer Containing Fluorine
| Publication Number: | SI25862A |
| Application Date: | 24. 1. 2020 |
| Assignee/Applicant: | Jožef Stefan Institute [SI] |
| Inventor: | Vesel Alenka; Mozetič Miran; Zaplotnik Rok; Primc Gregor; Recek Nina; Vesel Alenka; Mozetič Miran; Zaplotnik Rok; Primc Gregor; Recek Nina |
| Title: | Procedure for Increasing the Hydrophilicity of a Polymer Containing Fluorine |
| Description: | The proposed invention relates to a method for modifying the surface wettability of fluorine-containing polymers through sequential treatments – first with gas plasma rich in ultraviolet radiation, and then with oxidation using neutral reactive oxidative particles. The method is fast and allows for the treatment of fluorine-containing polymers of any shape and size, including ‘infinite’ materials such as films. The surface layer of an item made from a fluorine-containing polymer is depleted of fluorine upon interaction with gas plasma rich in ultraviolet radiation. This depleted surface layer is then exposed to reactive oxygen particles, such as neutral oxygen atoms. The wettability of objects made from or containing fluorine-containing polymers, treated by the methods of this invention, is close to the theoretical limit for smooth polymers that are well functionalized with polar functional groups. Unlike the usual treatment of fluorine-containing polymers with oxygen plasma, the processes of this invention do not produce hazardous gases such as oxy or peroxy fluorinated carbon compounds. |
| Drawings: | 
|
| Category: | Physical Sciences |
| Technology application codes: | Other industrial technologies, Physical and exact sciences, Measurements and standards |
| Market application codes: | Industrial products, Other |
| www: | https://worldwide.espacenet.com/patent/search/family/067511613/publication/SI25862A?q=SI%20202000016 |
| Patent offices: | WIPO |
Extended patent application
| Publication Number: | EP3757155B1 |
| Application Date: | 25. 6. 2020 |
| Assignee/Applicant: | Jožef Stefan Institute [SI] |
| Inventor: | Vesel Alenka; Mozetič Miran; Zaplotnik Rok; Primc Gregor; Recek Nina; Vesel Alenka; Mozetič Miran; Zaplotnik Rok; Primc Gregor; Recek Nina |
| Title: | Procedure for Increasing the Hydrophilicity of a Polymer Containing Fluorine |
| www: | https://worldwide.espacenet.com/patent/search/family/067511613/publication/EP3757155B1?q=SI%20202000016 |
Extended patent application
| Publication Number: | GB2585038A |
| Application Date: | 25. 6. 2019 |
| Assignee/Applicant: | Jožef Stefan Institute [SI] |
| Inventor: | Vesel Alenka; Mozetič Miran; Zaplotnik Rok; Primc Gregor; Recek Nina; Vesel Alenka; Mozetič Miran; Zaplotnik Rok; Primc Gregor; Recek Nina |
| Title: | Procedure for Increasing the Hydrophilicity of a Polymer Containing Fluorine |
| www: | https://worldwide.espacenet.com/patent/search/family/067511613/publication/GB2585038A?q=SI%20202000016 |
Extended patent application
| Publication Number: | US11384213B2 |
| Application Date: | 24. 6. 2020 |
| Assignee/Applicant: | Jožef Stefan Institute [SI] |
| Inventor: | Vesel Alenka; Mozetič Miran; Zaplotnik Rok; Primc Gregor; Recek Nina; Vesel Alenka; Mozetič Miran; Zaplotnik Rok; Primc Gregor; Recek Nina |
| Title: | Procedure for Increasing the Hydrophilicity of a Polymer Containing Fluorine |
| www: | https://worldwide.espacenet.com/patent/search/family/067511613/publication/US11384213B2?q=SI%20202000016 |