Flame-retardant HIPS material and preparation method thereof
US11926725B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2019 |
| Grant date | Mar 12, 2024 |
| Priority date | — |
| Expiry date | May 10, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2995/0016
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a flame-retardant HIPS material and a preparation method thereof, comprising the following components: 90 parts to 67 parts of a HIPS resin; 8 parts to 15 parts of a brominated flame retardant; and 3 parts to 7 parts of an auxiliary flame retardant; wherein the auxiliary flame retardant is a 1,3,5-triazine compound. In the present invention, a synergistic compounding of the brominated flame retardant and the auxiliary flame retardant effectively reduces an amount of the brominated flame retardant, and a stable UL 94 (1.5 mm) V-0 flame-retardant class can be achieved. Compared with the existing brominated flame-retardant HIPS, the present invention has a low halogen content, low gas, and high cost performance ratio, which avoids excessive acid gas from forming air lines on the surface of parts, has a good appearance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.