Polymer foam with low bromine content
US9493624B2 · kind B2 · utility
0Cited by
2References
15Claims
0Family size
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Key dates
| Filing date | Jan 5, 2010 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | May 23, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2461/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Prepare extruded polymer foam comprising at least 50 weight-percent alkenyl aromatic polymer, a brominated flame retardant providing 0.8 to 1.4 weight percent bromide, 0.05 to 0.5 weight-percent hydrobromic acid scavenger, at least 1.5 weight-percent graphite and less than 0.1 weight-percent C—C and O—O labile organic compounds using a blowing agent composition comprising at least 0.3 weight-parts per 100 weight parts polymer and that consists of blowing agents having an ozone depletion potential of zero and a global warming potential that is less than 1000.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.