Composite polyester hot-melt adhesive and preparation method thereof and preparation method of anti-scouring geotextile
US12152173B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 4, 2020 |
| Grant date | Nov 26, 2024 |
| Priority date | — |
| Expiry date | Dec 10, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2301/412
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A composite polyester hot-melt adhesive, a preparation method thereof and a preparation method of an anti-scouring geotextile are provided. The preparation method of the composite polyester hot-melt adhesive includes the following steps: performing an esterification reaction on a dibasic acid and a dihydric alcohol under a protection of nitrogen and an action of a titanium/cobalt composite catalyst, adding a stabilizer for a polycondensation reaction to obtain a polyester hot-melt adhesive, then adding polymethyl methacrylate (PMMA) microspheres for mixing and stirring to obtain the composite polyester hot-melt adhesive. The anti-scouring geotextile is obtained by bonding a polyethylene terephthalate woven fabric with a polypropylene geotextile by the composite polyester hot-melt adhesive. The composite polyester hot-melt adhesive has the advantages of high bonding strength and good anti-impact performance, and the prepared anti-scouring geotextile has the advantages of high anti-scouring strength, good soil conservation performance, strong protection capability and long service life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.