Foamable resin particles and method of producing same, and foamed molded body
US11993669B2 · kind B2 · utility
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Key dates
| Filing date | Feb 8, 2021 |
| Grant date | May 28, 2024 |
| Priority date | — |
| Expiry date | Sep 25, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2325/12
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Expandable resin particles that have a reduced VOC content, a method of producing the expandable resin particles, and a foamed molded product that has reduced VOC emission are provided. The expandable resin particles contain a base material resin containing, as a structural unit, a styrene unit and an acrylonitrile unit and an expanding agent. The expandable resin particles have a styrene content and an ethylbenzene content each of which is not more than a specific amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.