Silica aerogel-containing polyester masterbatch, method for making the same and silica aerogel-containing polyester fiber made from the same
US12365770B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2022 |
| Grant date | Jul 22, 2025 |
| Priority date | — |
| Expiry date | Oct 31, 2043 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2331/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A silica aerogel-containing polyester masterbatch includes a polyethylene terephthalate resin, a silica aerogel powder, and a dispersing agent. The silica aerogel powder is dispersed in the polyethylene terephthalate resin, and is present in an amount ranging from 5 wt % to 30 wt % based on 100 wt % of the silica aerogel-containing polyester masterbatch. The dispersing agent is dispersed in the polyethylene terephthalate resin, is selected from the group consisting of a paraffin oil, a silane compound, a wax including C28-C32 straight chain monoacids, and combinations thereof, and is present in an amount ranging from 0.1 wt % to 4.0 wt % based on 100 wt % of the silica aerogel-containing polyester masterbatch. A method for preparing the silica aerogel-containing polyester masterbatch, and a silica aerogel-containing polyester fiber made from the same are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.