Renewable antibacterial waterborne polyurethane synthetic leather with high peel strength and preparation method thereof
US12270149B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2024 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Oct 23, 2044 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06N2211/28
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A renewable antibacterial waterborne polyurethane synthetic leather with high peel strength and a preparation method thereof are disclosed. According to the disclosure, a renewable and durable antibacterial waterborne polyurethane emulsion is coated on release paper to obtain a polyurethane surface layer, and the polyurethane surface layer is adhered to the surface of a surface-modified base fabric to obtain a base fabric containing the polyurethane layer; and then chlorination is performed to obtain the renewable antibacterial waterborne polyurethane synthetic leather with high peel strength. The halamine antibacterial monomer used in the disclosure has antibacterial renewability and is connected with an ultraviolet absorbent, so that the antibacterial durability of a polyurethane coating is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.