Unsaturated polyester resin, and preparation method therefor and use thereof
US12195571B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2020 |
| Grant date | Jan 14, 2025 |
| Priority date | — |
| Expiry date | Jul 25, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L67/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to an unsaturated polyester resin, and a preparation method therefor and use thereof. The unsaturated polyester resin is prepared of the following raw materials in parts by mass: 50-90 parts of a prepolymer, 10-30 parts of phenylethylene, 5-15 parts of methyl methacrylate, and 5-15 parts of 1,3,5-triglycidyl isocyanurate. The prepolymer is formed by combining polyol, a benzene-containing polybasic acid, and an unsaturated polybasic acid with a molar ratio of (2.2-4.5):(1-1.5):(1-1.5); and in the prepolymer, the molar ratio of hydroxyl to carboxyl is (1.0-1.5):1. The unsaturated polyester resin has good yellowing resistance and also has good heat resistance, and a thermal deformation temperature is generally higher than 130° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.