Microphere-containing insulation
US8522829B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2007 |
| Grant date | Sep 3, 2013 |
| Priority date | — |
| Expiry date | May 11, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249974
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An insulated article having a first insulation region comprising a first polymeric material and first hollow ceramic microspheres and a second insulation region comprising a second polymeric material and second hollow ceramic microspheres. The first insulation region has a thermal conductivity that is no greater than the thermal conductivity of the first polymeric material and a volumetric heat capacity in a range of 60% to 90% of the volumetric heat capacity of the first polymeric material. The second insulation region has a thermal conductivity that is no greater than 90% of the thermal conductivity of the second polymeric material and a volumetric heat capacity that is less than 60% of the volumetric heat capacity of the second polymeric material. A method for making a composition for insulating an article is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.