Polyolefin foams made with isopentane-based blowing agents
US7045556B2 · kind B2 · utility
12Cited by
46References
62Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2002 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Nov 6, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2323/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A blowing agent blend for making polyolefin foams comprising isopentane and at least one co-blowing agent. The co-blowing agent is either a physical co-blowing agent having a boiling point less than 28° C., or a chemical co-blowing agent, or combinations thereof. The blowing agent blend comprises less than about 99 mol % isopentane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.