Polystyrene compositions for foam extrusion
US11414529B2 · kind B2 · utility
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4References
21Claims
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Key dates
| Filing date | Jun 21, 2018 |
| Grant date | Aug 16, 2022 |
| Priority date | — |
| Expiry date | Aug 28, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/0016
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A polystyrene (PS) composition for making an extruded foam, the PS composition comprising polystyrene, a blowing agent, and an additive selected from glycerol monostearate (GMS), glycerol tri-stearate (GTS), mineral oil (MO), epoxidized soy oil (ESO), epoxidized polybutadiene, or combinations thereof. Methods of producing a low density polystyrene (PS) foam are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.