Foamed styrenic polymers containing a brominated styrene-butadiene copolymer and having enhanced cell size homogeneity
US10093781B2 · kind B2 · utility
1Cited by
6References
12Claims
0Family size
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Key dates
| Filing date | Oct 30, 2013 |
| Grant date | Oct 9, 2018 |
| Priority date | — |
| Expiry date | Mar 7, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2666/84
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Extruded polymer foams are made from a polymer composition that includes an unbrominated styrenic polymer, a brominated vinyl aromatic/butadiene flame retardant, and an unbrominated vinyl aromatic/butadiene polymer. The unbrominated vinyl aromatic/butadiene polymer improves the cell homogeneity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.