Patent · US Active

Polystyrene compositions for foam extrusion

US11414529B2 · kind B2 · utility

0Cited by
4References
21Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 21, 2018
Grant dateAug 16, 2022
Priority date
Expiry dateAug 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.