Process for increasing hydrophobicity of articles made of polyolefins
US12128640B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 24, 2022 |
| Grant date | Oct 29, 2024 |
| Priority date | — |
| Expiry date | Oct 24, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2995/0093
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The disclosure provides a process for treatment of an article (1) made of a polymer composition; comprising the steps of providing an article (1) with a surface, the article being made of a polymer composition comprising one or more polyolefins; providing one or more texturing solvents (3, 5, 7, 9) selected from one or more vegetable oils, one or more terpenes, one or more alkanes and any combination thereof; wherein the one or more texturing solvents (3, 5, 7, 9) are further selected to have a boiling point which is above the crystallisation temperature Tc of the one or more polyolefins and to be devoid of a halogenated atom and/or an aromatic group; contacting the surface of the article (1) with the one or more texturing solvents (3, 5, 7, 9); and recovering an article with a textured surface with water contact angle following ISO 19403-6:2017 that is increased by comparison to the initial water contact angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.