Organic infrared attenuation agents
US10053549B2 · kind B2 · utility
1Cited by
29References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2012 |
| Grant date | Aug 21, 2018 |
| Priority date | — |
| Expiry date | Jun 25, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2495/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Organic infrared attenuation agents have been developed to improve the thermal insulation properties of polymeric foams such as polystyrene low density foams. The organic infrared attenuation agents can include polyols such as sorbitol, maltitol, and poly(ethylene glycol), polysaccharides such as starch or cellulose, and infrared attenuation polyesters such as polybutylene terephthalate. The organic attenuation agents include aromatic compounds or carbon oxygen bonds that are effective in absorbing infrared radiation at the desired wavelengths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.