Highly insulating polyurethane foam and method for manufacturing same
US9045608B2 · kind B2 · utility
0Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2013 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Jul 19, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K9/10
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The rigid polyurethane foam includes thermally expandable fine particles disposed between two or more adjacent cells, so as to be exposed to the inside and/or the outside of a unit cell, and a filler which is dispersed on the surface of the thermally expandable fine particles and/or on the inner and/or outer surfaces of the unit cell. The cells of the rigid polyurethane foam can be small and uniform in size and can be highly insulating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.